+/* USE_CHAR_VSPRINTF:
+ * This symbol is defined if this system has vsprintf() returning type
+ * (char*). The trend seems to be to declare it as "int vsprintf()". It
+ * is up to the package author to declare vsprintf correctly based on the
+ * symbol.
+ */
+#$d_vprintf HAS_VPRINTF /**/
+#$d_charvspr USE_CHAR_VSPRINTF /**/
+
+/* DOUBLESIZE:
+ * This symbol contains the size of a double, so that the C preprocessor
+ * can make decisions based on it.
+ */
+#define DOUBLESIZE $doublesize /**/
+
+/* I_MACH_CTHREADS:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <mach/cthreads.h>.
+ */
+#$i_machcthr I_MACH_CTHREADS /**/
+
+/* I_PTHREAD:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <pthread.h>.
+ */
+#$i_pthread I_PTHREAD /**/
+
+/* I_SYS_ACCESS:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <sys/access.h>.
+ */
+#$i_sysaccess I_SYS_ACCESS /**/
+
+/* I_SYS_SECURITY:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <sys/security.h>.
+ */
+#$i_syssecrt I_SYS_SECURITY /**/
+
+/* I_TIME:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <time.h>.
+ */
+/* I_SYS_TIME:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <sys/time.h>.
+ */
+/* I_SYS_TIME_KERNEL:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <sys/time.h> with KERNEL defined.
+ */
+/* HAS_TM_TM_ZONE:
+ * This symbol, if defined, indicates to the C program that
+ * the struct tm has a tm_zone field.
+ */
+/* HAS_TM_TM_GMTOFF:
+ * This symbol, if defined, indicates to the C program that
+ * the struct tm has a tm_gmtoff field.
+ */
+#$i_time I_TIME /**/
+#$i_systime I_SYS_TIME /**/
+#$i_systimek I_SYS_TIME_KERNEL /**/
+#$d_tm_tm_zone HAS_TM_TM_ZONE /**/
+#$d_tm_tm_gmtoff HAS_TM_TM_GMTOFF /**/
+
+/* PERL_INC_VERSION_LIST:
+ * This variable specifies the list of subdirectories in over
+ * which perl.c:incpush() and lib/lib.pm will automatically
+ * search when adding directories to @INC, in a format suitable
+ * for a C initialization string. See the inc_version_list entry
+ * in Porting/Glossary for more details.
+ */
+#$d_inc_version_list PERL_INC_VERSION_LIST $inc_version_list_init /**/
+
+/* INSTALL_USR_BIN_PERL:
+ * This symbol, if defined, indicates that Perl is to be installed
+ * also as /usr/bin/perl.
+ */
+#$installusrbinperl INSTALL_USR_BIN_PERL /**/
+
+/* VAL_O_NONBLOCK:
+ * This symbol is to be used during open() or fcntl(F_SETFL) to turn on
+ * non-blocking I/O for the file descriptor. Note that there is no way
+ * back, i.e. you cannot turn it blocking again this way. If you wish to
+ * alternatively switch between blocking and non-blocking, use the
+ * ioctl(FIOSNBIO) call instead, but that is not supported by all devices.
+ */
+/* VAL_EAGAIN:
+ * This symbol holds the errno error code set by read() when no data was
+ * present on the non-blocking file descriptor.
+ */
+/* RD_NODATA:
+ * This symbol holds the return code from read() when no data is present
+ * on the non-blocking file descriptor. Be careful! If EOF_NONBLOCK is
+ * not defined, then you can't distinguish between no data and EOF by
+ * issuing a read(). You'll have to find another way to tell for sure!
+ */
+/* EOF_NONBLOCK:
+ * This symbol, if defined, indicates to the C program that a read() on
+ * a non-blocking file descriptor will return 0 on EOF, and not the value
+ * held in RD_NODATA (-1 usually, in that case!).
+ */
+#define VAL_O_NONBLOCK $o_nonblock
+#define VAL_EAGAIN $eagain
+#define RD_NODATA $rd_nodata
+#$d_eofnblk EOF_NONBLOCK
+
+/* PERL_OTHERLIBDIRS:
+ * This variable contains a colon-separated set of paths for the perl
+ * binary to search for additional library files or modules.
+ * These directories will be tacked to the end of @INC.
+ * Perl will automatically search below each path for version-
+ * and architecture-specific directories. See PERL_INC_VERSION_LIST
+ * for more details.
+ */
+#$d_perl_otherlibdirs PERL_OTHERLIBDIRS "$otherlibdirs" /**/
+
+/* PRIVLIB:
+ * This symbol contains the name of the private library for this package.
+ * The library is private in the sense that it needn't be in anyone's
+ * execution path, but it should be accessible by the world. The program
+ * should be prepared to do ~ expansion.
+ */
+/* PRIVLIB_EXP:
+ * This symbol contains the ~name expanded version of PRIVLIB, to be used
+ * in programs that are not prepared to deal with ~ expansion at run-time.
+ */
+#define PRIVLIB "$privlib" /**/
+#define PRIVLIB_EXP "$privlibexp" /**/
+
+/* PTRSIZE:
+ * This symbol contains the size of a pointer, so that the C preprocessor
+ * can make decisions based on it. It will be sizeof(void *) if
+ * the compiler supports (void *); otherwise it will be
+ * sizeof(char *).
+ */
+#define PTRSIZE $ptrsize /**/
+
+/* Drand01:
+ * This macro is to be used to generate uniformly distributed
+ * random numbers over the range [0., 1.[. You may have to supply
+ * an 'extern double drand48();' in your program since SunOS 4.1.3
+ * doesn't provide you with anything relevant in its headers.
+ * See HAS_DRAND48_PROTO.
+ */
+/* Rand_seed_t:
+ * This symbol defines the type of the argument of the
+ * random seed function.
+ */
+/* seedDrand01:
+ * This symbol defines the macro to be used in seeding the
+ * random number generator (see Drand01).
+ */
+/* RANDBITS:
+ * This symbol indicates how many bits are produced by the
+ * function used to generate normalized random numbers.
+ * Values include 15, 16, 31, and 48.
+ */
+#define Drand01() $drand01 /**/
+#define Rand_seed_t $randseedtype /**/
+#define seedDrand01(x) $seedfunc((Rand_seed_t)x) /**/
+#define RANDBITS $randbits /**/
+
+/* SITEARCH:
+ * This symbol contains the name of the private library for this package.
+ * The library is private in the sense that it needn't be in anyone's
+ * execution path, but it should be accessible by the world. The program
+ * should be prepared to do ~ expansion.
+ * The standard distribution will put nothing in this directory.
+ * After perl has been installed, users may install their own local
+ * architecture-dependent modules in this directory with
+ * MakeMaker Makefile.PL
+ * or equivalent. See INSTALL for details.
+ */
+/* SITEARCH_EXP:
+ * This symbol contains the ~name expanded version of SITEARCH, to be used
+ * in programs that are not prepared to deal with ~ expansion at run-time.
+ */
+#$d_sitearch SITEARCH "$sitearch" /**/
+#$d_sitearch SITEARCH_EXP "$sitearchexp" /**/
+
+/* SITELIB:
+ * This symbol contains the name of the private library for this package.
+ * The library is private in the sense that it needn't be in anyone's
+ * execution path, but it should be accessible by the world. The program
+ * should be prepared to do ~ expansion.
+ * The standard distribution will put nothing in this directory.
+ * After perl has been installed, users may install their own local
+ * architecture-independent modules in this directory with
+ * MakeMaker Makefile.PL
+ * or equivalent. See INSTALL for details.
+ */
+/* SITELIB_EXP:
+ * This symbol contains the ~name expanded version of SITELIB, to be used
+ * in programs that are not prepared to deal with ~ expansion at run-time.
+ */
+/* SITELIB_STEM:
+ * This define is SITELIB_EXP with any trailing version-specific component
+ * removed. The elements in inc_version_list (inc_version_list.U) can
+ * be tacked onto this variable to generate a list of directories to search.
+ */
+#define SITELIB "$sitelib" /**/
+#define SITELIB_EXP "$sitelibexp" /**/
+#define SITELIB_STEM "$sitelib_stem" /**/
+
+/* SSize_t:
+ * This symbol holds the type used by functions that return
+ * a count of bytes or an error condition. It must be a signed type.
+ * It is usually ssize_t, but may be long or int, etc.
+ * It may be necessary to include <sys/types.h> or <unistd.h>
+ * to get any typedef'ed information.
+ * We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
+ */
+#define SSize_t $ssizetype /* signed count of bytes */
+
+/* USE_ITHREADS:
+ * This symbol, if defined, indicates that Perl should be built to
+ * use the interpreter-based threading implementation.
+ */
+/* USE_5005THREADS:
+ * This symbol, if defined, indicates that Perl should be built to
+ * use the 5.005-based threading implementation.
+ * Only valid up to 5.8.x.
+ */
+/* OLD_PTHREADS_API:
+ * This symbol, if defined, indicates that Perl should
+ * be built to use the old draft POSIX threads API.
+ */
+/* USE_REENTRANT_API:
+ * This symbol, if defined, indicates that Perl should
+ * try to use the various _r versions of library functions.
+ * This is extremely experimental.
+ */
+#$use5005threads USE_5005THREADS /**/
+#$useithreads USE_ITHREADS /**/
+#if defined(USE_5005THREADS) && !defined(USE_ITHREADS)
+#define USE_THREADS /* until src is revised*/
+#endif
+#$d_oldpthreads OLD_PTHREADS_API /**/
+#$usereentrant USE_REENTRANT_API /**/
+
+/* PERL_VENDORARCH:
+ * If defined, this symbol contains the name of a private library.
+ * The library is private in the sense that it needn't be in anyone's
+ * execution path, but it should be accessible by the world.
+ * It may have a ~ on the front.
+ * The standard distribution will put nothing in this directory.
+ * Vendors who distribute perl may wish to place their own
+ * architecture-dependent modules and extensions in this directory with
+ * MakeMaker Makefile.PL INSTALLDIRS=vendor
+ * or equivalent. See INSTALL for details.
+ */
+/* PERL_VENDORARCH_EXP:
+ * This symbol contains the ~name expanded version of PERL_VENDORARCH, to be used
+ * in programs that are not prepared to deal with ~ expansion at run-time.
+ */
+#$d_vendorarch PERL_VENDORARCH "$vendorarch" /**/
+#$d_vendorarch PERL_VENDORARCH_EXP "$vendorarchexp" /**/
+
+/* PERL_VENDORLIB_EXP:
+ * This symbol contains the ~name expanded version of VENDORLIB, to be used
+ * in programs that are not prepared to deal with ~ expansion at run-time.
+ */
+/* PERL_VENDORLIB_STEM:
+ * This define is PERL_VENDORLIB_EXP with any trailing version-specific component
+ * removed. The elements in inc_version_list (inc_version_list.U) can
+ * be tacked onto this variable to generate a list of directories to search.
+ */
+#$d_vendorlib PERL_VENDORLIB_EXP "$vendorlibexp" /**/
+#$d_vendorlib PERL_VENDORLIB_STEM "$vendorlib_stem" /**/
+
+/* HAS_STATIC_INLINE:
+ * This symbol, if defined, indicates that the C compiler supports
+ * C99-style static inline. That is, the function can't be called
+ * from another translation unit.
+ */
+/* PERL_STATIC_INLINE:
+ * This symbol gives the best-guess incantation to use for static
+ * inline functions. If HAS_STATIC_INLINE is defined, this will
+ * give C99-style inline. If HAS_STATIC_INLINE is not defined,
+ * this will give a plain 'static'. It will always be defined
+ * to something that gives static linkage.
+ * Possibilities include
+ * static inline (c99)
+ * static __inline__ (gcc -ansi)
+ * static __inline (MSVC)
+ * static _inline (older MSVC)
+ * static (c89 compilers)
+ */
+#$d_static_inline HAS_STATIC_INLINE /**/
+#define PERL_STATIC_INLINE $perl_static_inline /**/
+
+/* EBCDIC:
+ * This symbol, if defined, indicates that this system uses
+ * EBCDIC encoding.
+ */
+#$ebcdic EBCDIC /**/
+
+/* OSNAME:
+ * This symbol contains the name of the operating system, as determined
+ * by Configure. You shouldn't rely on it too much; the specific
+ * feature tests from Configure are generally more reliable.
+ */
+/* OSVERS:
+ * This symbol contains the version of the operating system, as determined
+ * by Configure. You shouldn't rely on it too much; the specific
+ * feature tests from Configure are generally more reliable.
+ */
+#define OSNAME "$osname" /**/
+#define OSVERS "$osvers" /**/
+
+/* CAT2:
+ * This macro concatenates 2 tokens together.
+ */
+/* STRINGIFY:
+ * This macro surrounds its token with double quotes.
+ */
+#if $cpp_stuff == 1
+#define CAT2(a,b) a/**/b
+#define STRINGIFY(a) "a"
+#endif
+#if $cpp_stuff == 42
+#define PeRl_CaTiFy(a, b) a ## b
+#define PeRl_StGiFy(a) #a
+#define CAT2(a,b) PeRl_CaTiFy(a,b)
+#define StGiFy(a) PeRl_StGiFy(a)
+#define STRINGIFY(a) PeRl_StGiFy(a)
+#endif
+#if $cpp_stuff != 1 && $cpp_stuff != 42
+#include "Bletch: How does this C preprocessor concatenate tokens?"
+#endif
+
+/* CPPSTDIN:
+ * This symbol contains the first part of the string which will invoke
+ * the C preprocessor on the standard input and produce to standard
+ * output. Typical value of "cc -E" or "/lib/cpp", but it can also
+ * call a wrapper. See CPPRUN.
+ */
+/* CPPMINUS:
+ * This symbol contains the second part of the string which will invoke
+ * the C preprocessor on the standard input and produce to standard
+ * output. This symbol will have the value "-" if CPPSTDIN needs a minus
+ * to specify standard input, otherwise the value is "".
+ */
+/* CPPRUN:
+ * This symbol contains the string which will invoke a C preprocessor on
+ * the standard input and produce to standard output. It needs to end
+ * with CPPLAST, after all other preprocessor flags have been specified.
+ * The main difference with CPPSTDIN is that this program will never be a
+ * pointer to a shell wrapper, i.e. it will be empty if no preprocessor is
+ * available directly to the user. Note that it may well be different from
+ * the preprocessor used to compile the C program.
+ */
+/* CPPLAST:
+ * This symbol is intended to be used along with CPPRUN in the same manner
+ * symbol CPPMINUS is used with CPPSTDIN. It contains either "-" or "".
+ */
+#define CPPSTDIN "$cppstdin"
+#define CPPMINUS "$cppminus"
+#define CPPRUN "$cpprun"
+#define CPPLAST "$cpplast"
+
+/* HAS_ACCESS:
+ * This manifest constant lets the C program know that the access()
+ * system call is available to check for accessibility using real UID/GID.
+ * (always present on UNIX.)
+ */
+#$d_access HAS_ACCESS /**/
+
+/* HASATTRIBUTE_FORMAT:
+ * Can we handle GCC attribute for checking printf-style formats
+ */
+/* PRINTF_FORMAT_NULL_OK:
+ * Allows __printf__ format to be null when checking printf-style
+ */
+/* HASATTRIBUTE_MALLOC:
+ * Can we handle GCC attribute for malloc-style functions.
+ */
+/* HASATTRIBUTE_NONNULL:
+ * Can we handle GCC attribute for nonnull function parms.
+ */
+/* HASATTRIBUTE_NORETURN:
+ * Can we handle GCC attribute for functions that do not return
+ */
+/* HASATTRIBUTE_PURE:
+ * Can we handle GCC attribute for pure functions
+ */
+/* HASATTRIBUTE_UNUSED:
+ * Can we handle GCC attribute for unused variables and arguments
+ */
+/* HASATTRIBUTE_DEPRECATED:
+ * Can we handle GCC attribute for marking deprecated APIs
+ */
+/* HASATTRIBUTE_WARN_UNUSED_RESULT:
+ * Can we handle GCC attribute for warning on unused results
+ */
+#$d_attribute_deprecated HASATTRIBUTE_DEPRECATED /**/
+#$d_attribute_format HASATTRIBUTE_FORMAT /**/
+#$d_printf_format_null PRINTF_FORMAT_NULL_OK /**/
+#$d_attribute_noreturn HASATTRIBUTE_NORETURN /**/
+#$d_attribute_malloc HASATTRIBUTE_MALLOC /**/
+#$d_attribute_nonnull HASATTRIBUTE_NONNULL /**/
+#$d_attribute_pure HASATTRIBUTE_PURE /**/
+#$d_attribute_unused HASATTRIBUTE_UNUSED /**/
+#$d_attribute_warn_unused_result HASATTRIBUTE_WARN_UNUSED_RESULT /**/
+
+/* HASCONST:
+ * This symbol, if defined, indicates that this C compiler knows about
+ * the const type. There is no need to actually test for that symbol
+ * within your programs. The mere use of the "const" keyword will
+ * trigger the necessary tests.
+ */
+#$d_const HASCONST /**/
+#ifndef HASCONST
+#define const
+#endif
+
+/* HAS_CSH:
+ * This symbol, if defined, indicates that the C-shell exists.
+ */
+/* CSH:
+ * This symbol, if defined, contains the full pathname of csh.
+ */
+#$d_csh HAS_CSH /**/
+#ifdef HAS_CSH
+#define CSH "$full_csh" /**/
+#endif
+
+/* SETUID_SCRIPTS_ARE_SECURE_NOW:
+ * This symbol, if defined, indicates that the bug that prevents
+ * setuid scripts from being secure is not present in this kernel.
+ */
+/* DOSUID:
+ * This symbol, if defined, indicates that the C program should
+ * check the script that it is executing for setuid/setgid bits, and
+ * attempt to emulate setuid/setgid on systems that have disabled
+ * setuid #! scripts because the kernel can't do it securely.
+ * It is up to the package designer to make sure that this emulation
+ * is done securely. Among other things, it should do an fstat on
+ * the script it just opened to make sure it really is a setuid/setgid
+ * script, it should make sure the arguments passed correspond exactly
+ * to the argument on the #! line, and it should not trust any
+ * subprocesses to which it must pass the filename rather than the
+ * file descriptor of the script to be executed.
+ */
+#$d_suidsafe SETUID_SCRIPTS_ARE_SECURE_NOW /**/
+#$d_dosuid DOSUID /**/
+
+/* HAS_ENDGRENT:
+ * This symbol, if defined, indicates that the getgrent routine is
+ * available for finalizing sequential access of the group database.
+ */
+#$d_endgrent HAS_ENDGRENT /**/
+
+/* HAS_ENDHOSTENT:
+ * This symbol, if defined, indicates that the endhostent() routine is
+ * available to close whatever was being used for host queries.
+ */
+#$d_endhent HAS_ENDHOSTENT /**/
+
+/* HAS_ENDNETENT:
+ * This symbol, if defined, indicates that the endnetent() routine is
+ * available to close whatever was being used for network queries.
+ */
+#$d_endnent HAS_ENDNETENT /**/
+
+/* HAS_ENDPROTOENT:
+ * This symbol, if defined, indicates that the endprotoent() routine is
+ * available to close whatever was being used for protocol queries.
+ */
+#$d_endpent HAS_ENDPROTOENT /**/
+
+/* HAS_ENDPWENT:
+ * This symbol, if defined, indicates that the getgrent routine is
+ * available for finalizing sequential access of the passwd database.
+ */
+#$d_endpwent HAS_ENDPWENT /**/
+
+/* HAS_ENDSERVENT:
+ * This symbol, if defined, indicates that the endservent() routine is
+ * available to close whatever was being used for service queries.
+ */
+#$d_endsent HAS_ENDSERVENT /**/
+
+/* FLEXFILENAMES:
+ * This symbol, if defined, indicates that the system supports filenames
+ * longer than 14 characters.
+ */
+#$d_flexfnam FLEXFILENAMES /**/
+
+/* HAS_GETGRENT:
+ * This symbol, if defined, indicates that the getgrent routine is
+ * available for sequential access of the group database.
+ */
+#$d_getgrent HAS_GETGRENT /**/
+
+/* HAS_GETHOSTBYADDR:
+ * This symbol, if defined, indicates that the gethostbyaddr() routine is
+ * available to look up hosts by their IP addresses.
+ */
+#$d_gethbyaddr HAS_GETHOSTBYADDR /**/
+
+/* HAS_GETHOSTBYNAME:
+ * This symbol, if defined, indicates that the gethostbyname() routine is
+ * available to look up host names in some data base or other.
+ */
+#$d_gethbyname HAS_GETHOSTBYNAME /**/
+
+/* HAS_GETHOSTENT:
+ * This symbol, if defined, indicates that the gethostent() routine is
+ * available to look up host names in some data base or another.
+ */
+#$d_gethent HAS_GETHOSTENT /**/
+
+/* HAS_GETHOSTNAME:
+ * This symbol, if defined, indicates that the C program may use the
+ * gethostname() routine to derive the host name. See also HAS_UNAME
+ * and PHOSTNAME.
+ */
+/* HAS_UNAME:
+ * This symbol, if defined, indicates that the C program may use the
+ * uname() routine to derive the host name. See also HAS_GETHOSTNAME
+ * and PHOSTNAME.
+ */
+/* PHOSTNAME:
+ * This symbol, if defined, indicates the command to feed to the
+ * popen() routine to derive the host name. See also HAS_GETHOSTNAME
+ * and HAS_UNAME. Note that the command uses a fully qualified path,
+ * so that it is safe even if used by a process with super-user
+ * privileges.
+ */
+/* HAS_PHOSTNAME:
+ * This symbol, if defined, indicates that the C program may use the
+ * contents of PHOSTNAME as a command to feed to the popen() routine
+ * to derive the host name.
+ */
+#$d_gethname HAS_GETHOSTNAME /**/
+#$d_uname HAS_UNAME /**/
+#$d_phostname HAS_PHOSTNAME /**/
+#ifdef HAS_PHOSTNAME
+#define PHOSTNAME "$aphostname" /* How to get the host name */
+#endif
+
+/* HAS_GETNETBYADDR:
+ * This symbol, if defined, indicates that the getnetbyaddr() routine is
+ * available to look up networks by their IP addresses.
+ */
+#$d_getnbyaddr HAS_GETNETBYADDR /**/
+
+/* HAS_GETNETBYNAME:
+ * This symbol, if defined, indicates that the getnetbyname() routine is
+ * available to look up networks by their names.
+ */
+#$d_getnbyname HAS_GETNETBYNAME /**/
+
+/* HAS_GETNETENT:
+ * This symbol, if defined, indicates that the getnetent() routine is
+ * available to look up network names in some data base or another.
+ */
+#$d_getnent HAS_GETNETENT /**/
+
+/* HAS_GETPROTOENT:
+ * This symbol, if defined, indicates that the getprotoent() routine is
+ * available to look up protocols in some data base or another.
+ */
+#$d_getpent HAS_GETPROTOENT /**/
+
+/* HAS_GETPGRP:
+ * This symbol, if defined, indicates that the getpgrp routine is
+ * available to get the current process group.
+ */
+/* USE_BSD_GETPGRP:
+ * This symbol, if defined, indicates that getpgrp needs one
+ * arguments whereas USG one needs none.
+ */
+#$d_getpgrp HAS_GETPGRP /**/
+#$d_bsdgetpgrp USE_BSD_GETPGRP /**/
+
+/* HAS_GETPROTOBYNAME:
+ * This symbol, if defined, indicates that the getprotobyname()
+ * routine is available to look up protocols by their name.
+ */
+/* HAS_GETPROTOBYNUMBER:
+ * This symbol, if defined, indicates that the getprotobynumber()
+ * routine is available to look up protocols by their number.
+ */
+#$d_getpbyname HAS_GETPROTOBYNAME /**/
+#$d_getpbynumber HAS_GETPROTOBYNUMBER /**/
+
+/* HAS_GETPWENT:
+ * This symbol, if defined, indicates that the getpwent routine is
+ * available for sequential access of the passwd database.
+ * If this is not available, the older getpw() function may be available.
+ */
+#$d_getpwent HAS_GETPWENT /**/
+
+/* HAS_GETSERVENT:
+ * This symbol, if defined, indicates that the getservent() routine is
+ * available to look up network services in some data base or another.
+ */
+#$d_getsent HAS_GETSERVENT /**/
+
+/* HAS_GETSERVBYNAME:
+ * This symbol, if defined, indicates that the getservbyname()
+ * routine is available to look up services by their name.
+ */
+/* HAS_GETSERVBYPORT:
+ * This symbol, if defined, indicates that the getservbyport()
+ * routine is available to look up services by their port.
+ */
+#$d_getsbyname HAS_GETSERVBYNAME /**/
+#$d_getsbyport HAS_GETSERVBYPORT /**/
+
+/* HAS_HTONL:
+ * This symbol, if defined, indicates that the htonl() routine (and
+ * friends htons() ntohl() ntohs()) are available to do network
+ * order byte swapping.
+ */
+/* HAS_HTONS:
+ * This symbol, if defined, indicates that the htons() routine (and
+ * friends htonl() ntohl() ntohs()) are available to do network
+ * order byte swapping.
+ */
+/* HAS_NTOHL:
+ * This symbol, if defined, indicates that the ntohl() routine (and
+ * friends htonl() htons() ntohs()) are available to do network
+ * order byte swapping.
+ */
+/* HAS_NTOHS:
+ * This symbol, if defined, indicates that the ntohs() routine (and
+ * friends htonl() htons() ntohl()) are available to do network
+ * order byte swapping.
+ */
+#$d_htonl HAS_HTONL /**/
+#$d_htonl HAS_HTONS /**/
+#$d_htonl HAS_NTOHL /**/
+#$d_htonl HAS_NTOHS /**/
+
+/* HAS_LONG_DOUBLE:
+ * This symbol will be defined if the C compiler supports long
+ * doubles.
+ */
+/* LONG_DOUBLESIZE:
+ * This symbol contains the size of a long double, so that the
+ * C preprocessor can make decisions based on it. It is only
+ * defined if the system supports long doubles.
+ */
+#$d_longdbl HAS_LONG_DOUBLE /**/
+#ifdef HAS_LONG_DOUBLE
+#define LONG_DOUBLESIZE $longdblsize /**/
+#endif
+
+/* HAS_LONG_LONG:
+ * This symbol will be defined if the C compiler supports long long.
+ */
+/* LONGLONGSIZE:
+ * This symbol contains the size of a long long, so that the
+ * C preprocessor can make decisions based on it. It is only
+ * defined if the system supports long long.
+ */
+#$d_longlong HAS_LONG_LONG /**/
+#ifdef HAS_LONG_LONG
+#define LONGLONGSIZE $longlongsize /**/
+#endif
+
+/* HAS_MEMCHR:
+ * This symbol, if defined, indicates that the memchr routine is available
+ * to locate characters within a C string.
+ */
+#$d_memchr HAS_MEMCHR /**/
+
+/* HAS_MKSTEMP:
+ * This symbol, if defined, indicates that the mkstemp routine is
+ * available to exclusively create and open a uniquely named
+ * temporary file.
+ */
+#$d_mkstemp HAS_MKSTEMP /**/
+
+/* HAS_MMAP:
+ * This symbol, if defined, indicates that the mmap system call is
+ * available to map a file into memory.
+ */
+/* Mmap_t:
+ * This symbol holds the return type of the mmap() system call
+ * (and simultaneously the type of the first argument).
+ * Usually set to 'void *' or 'caddr_t'.
+ */
+#$d_mmap HAS_MMAP /**/
+#define Mmap_t $mmaptype /**/
+
+/* HAS_MSG:
+ * This symbol, if defined, indicates that the entire msg*(2) library is
+ * supported (IPC mechanism based on message queues).
+ */
+#$d_msg HAS_MSG /**/
+
+/* HAS_SEM:
+ * This symbol, if defined, indicates that the entire sem*(2) library is
+ * supported.
+ */
+#$d_sem HAS_SEM /**/
+
+/* HAS_SETGRENT:
+ * This symbol, if defined, indicates that the setgrent routine is
+ * available for initializing sequential access of the group database.
+ */
+#$d_setgrent HAS_SETGRENT /**/
+
+/* HAS_SETHOSTENT:
+ * This symbol, if defined, indicates that the sethostent() routine is
+ * available.
+ */
+#$d_sethent HAS_SETHOSTENT /**/
+
+/* HAS_SETNETENT:
+ * This symbol, if defined, indicates that the setnetent() routine is
+ * available.
+ */
+#$d_setnent HAS_SETNETENT /**/
+
+/* HAS_SETPROTOENT:
+ * This symbol, if defined, indicates that the setprotoent() routine is
+ * available.
+ */
+#$d_setpent HAS_SETPROTOENT /**/
+
+/* HAS_SETPGRP:
+ * This symbol, if defined, indicates that the setpgrp routine is
+ * available to set the current process group.
+ */
+/* USE_BSD_SETPGRP:
+ * This symbol, if defined, indicates that setpgrp needs two
+ * arguments whereas USG one needs none. See also HAS_SETPGID
+ * for a POSIX interface.
+ */
+#$d_setpgrp HAS_SETPGRP /**/
+#$d_bsdsetpgrp USE_BSD_SETPGRP /**/
+
+/* HAS_SETPWENT:
+ * This symbol, if defined, indicates that the setpwent routine is
+ * available for initializing sequential access of the passwd database.
+ */
+#$d_setpwent HAS_SETPWENT /**/
+
+/* HAS_SETSERVENT:
+ * This symbol, if defined, indicates that the setservent() routine is
+ * available.
+ */
+#$d_setsent HAS_SETSERVENT /**/
+
+/* HAS_SETVBUF:
+ * This symbol, if defined, indicates that the setvbuf routine is
+ * available to change buffering on an open stdio stream.
+ * to a line-buffered mode.
+ */
+#$d_setvbuf HAS_SETVBUF /**/
+
+/* HAS_SHM:
+ * This symbol, if defined, indicates that the entire shm*(2) library is
+ * supported.
+ */
+#$d_shm HAS_SHM /**/
+
+/* Shmat_t:
+ * This symbol holds the return type of the shmat() system call.
+ * Usually set to 'void *' or 'char *'.
+ */
+/* HAS_SHMAT_PROTOTYPE:
+ * This symbol, if defined, indicates that the sys/shm.h includes
+ * a prototype for shmat(). Otherwise, it is up to the program to
+ * guess one. Shmat_t shmat(int, Shmat_t, int) is a good guess,
+ * but not always right so it should be emitted by the program only
+ * when HAS_SHMAT_PROTOTYPE is not defined to avoid conflicting defs.
+ */
+#define Shmat_t $shmattype /**/
+#$d_shmatprototype HAS_SHMAT_PROTOTYPE /**/
+
+/* HAS_SOCKET:
+ * This symbol, if defined, indicates that the BSD socket interface is
+ * supported.
+ */
+/* HAS_SOCKETPAIR:
+ * This symbol, if defined, indicates that the BSD socketpair() call is
+ * supported.
+ */
+/* HAS_MSG_CTRUNC:
+ * This symbol, if defined, indicates that the MSG_CTRUNC is supported.
+ * Checking just with #ifdef might not be enough because this symbol
+ * has been known to be an enum.
+ */
+/* HAS_MSG_DONTROUTE:
+ * This symbol, if defined, indicates that the MSG_DONTROUTE is supported.
+ * Checking just with #ifdef might not be enough because this symbol
+ * has been known to be an enum.
+ */
+/* HAS_MSG_OOB:
+ * This symbol, if defined, indicates that the MSG_OOB is supported.
+ * Checking just with #ifdef might not be enough because this symbol
+ * has been known to be an enum.
+ */
+/* HAS_MSG_PEEK:
+ * This symbol, if defined, indicates that the MSG_PEEK is supported.
+ * Checking just with #ifdef might not be enough because this symbol
+ * has been known to be an enum.
+ */
+/* HAS_MSG_PROXY:
+ * This symbol, if defined, indicates that the MSG_PROXY is supported.
+ * Checking just with #ifdef might not be enough because this symbol
+ * has been known to be an enum.
+ */
+/* HAS_SCM_RIGHTS:
+ * This symbol, if defined, indicates that the SCM_RIGHTS is supported.
+ * Checking just with #ifdef might not be enough because this symbol
+ * has been known to be an enum.
+ */
+/* HAS_SOCKADDR_SA_LEN:
+ * This symbol, if defined, indicates that the struct sockaddr
+ * structure has a member called sa_len, indicating the length of
+ * the structure.
+ */
+/* HAS_SIN6_SCOPE_ID:
+ * This symbol, if defined, indicates that the struct sockaddr_in6
+ * structure has a member called sin6_scope_id.
+ */
+#$d_socket HAS_SOCKET /**/
+#$d_sockpair HAS_SOCKETPAIR /**/
+#$d_sockaddr_sa_len HAS_SOCKADDR_SA_LEN /**/
+#$d_msg_ctrunc HAS_MSG_CTRUNC /**/
+#$d_msg_dontroute HAS_MSG_DONTROUTE /**/
+#$d_msg_oob HAS_MSG_OOB /**/
+#$d_msg_peek HAS_MSG_PEEK /**/
+#$d_msg_proxy HAS_MSG_PROXY /**/
+#$d_scm_rights HAS_SCM_RIGHTS /**/
+#$d_sin6_scope_id HAS_SIN6_SCOPE_ID /**/
+
+/* USE_STAT_BLOCKS:
+ * This symbol is defined if this system has a stat structure declaring
+ * st_blksize and st_blocks.
+ */
+#ifndef USE_STAT_BLOCKS
+#$d_statblks USE_STAT_BLOCKS /**/
+#endif
+
+/* USE_STRUCT_COPY:
+ * This symbol, if defined, indicates that this C compiler knows how
+ * to copy structures. If undefined, you'll need to use a block copy
+ * routine of some sort instead.
+ */
+#$d_strctcpy USE_STRUCT_COPY /**/
+
+/* HAS_STRERROR:
+ * This symbol, if defined, indicates that the strerror routine is
+ * available to translate error numbers to strings. See the writeup
+ * of Strerror() in this file before you try to define your own.
+ */
+/* HAS_SYS_ERRLIST:
+ * This symbol, if defined, indicates that the sys_errlist array is
+ * available to translate error numbers to strings. The extern int
+ * sys_nerr gives the size of that table.
+ */
+/* Strerror:
+ * This preprocessor symbol is defined as a macro if strerror() is
+ * not available to translate error numbers to strings but sys_errlist[]
+ * array is there.
+ */
+#$d_strerror HAS_STRERROR /**/
+#$d_syserrlst HAS_SYS_ERRLIST /**/
+#define Strerror(e) $d_strerrm
+
+/* HAS_STRTOUL:
+ * This symbol, if defined, indicates that the strtoul routine is
+ * available to provide conversion of strings to unsigned long.
+ */
+#$d_strtoul HAS_STRTOUL /**/
+
+/* HAS_UNION_SEMUN:
+ * This symbol, if defined, indicates that the union semun is
+ * defined by including <sys/sem.h>. If not, the user code
+ * probably needs to define it as:
+ * union semun {
+ * int val;
+ * struct semid_ds *buf;
+ * unsigned short *array;
+ * }
+ */
+/* USE_SEMCTL_SEMUN:
+ * This symbol, if defined, indicates that union semun is
+ * used for semctl IPC_STAT.
+ */
+/* USE_SEMCTL_SEMID_DS:
+ * This symbol, if defined, indicates that struct semid_ds * is
+ * used for semctl IPC_STAT.
+ */
+#$d_union_semun HAS_UNION_SEMUN /**/
+#$d_semctl_semun USE_SEMCTL_SEMUN /**/
+#$d_semctl_semid_ds USE_SEMCTL_SEMID_DS /**/
+
+/* HAS_VFORK:
+ * This symbol, if defined, indicates that vfork() exists.
+ */
+#$d_vfork HAS_VFORK /**/
+
+/* HAS_PSEUDOFORK:
+ * This symbol, if defined, indicates that an emulation of the
+ * fork routine is available.
+ */
+#$d_pseudofork HAS_PSEUDOFORK /**/
+
+/* Signal_t:
+ * This symbol's value is either "void" or "int", corresponding to the
+ * appropriate return type of a signal handler. Thus, you can declare
+ * a signal handler using "Signal_t (*handler)()", and define the
+ * handler using "Signal_t handler(sig)".
+ */
+#define Signal_t $signal_t /* Signal handler's return type */
+
+/* HASVOLATILE:
+ * This symbol, if defined, indicates that this C compiler knows about
+ * the volatile declaration.
+ */
+#$d_volatile HASVOLATILE /**/
+#ifndef HASVOLATILE
+#define volatile
+#endif
+
+/* I_DIRENT:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <dirent.h>. Using this symbol also triggers the definition
+ * of the Direntry_t define which ends up being 'struct dirent' or
+ * 'struct direct' depending on the availability of <dirent.h>.
+ */
+/* DIRNAMLEN:
+ * This symbol, if defined, indicates to the C program that the length
+ * of directory entry names is provided by a d_namlen field. Otherwise
+ * you need to do strlen() on the d_name field.
+ */
+/* Direntry_t:
+ * This symbol is set to 'struct direct' or 'struct dirent' depending on
+ * whether dirent is available or not. You should use this pseudo type to
+ * portably declare your directory entries.
+ */
+#$i_dirent I_DIRENT /**/
+#$d_dirnamlen DIRNAMLEN /**/
+#define Direntry_t $direntrytype
+
+/* I_GRP:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <grp.h>.
+ */
+/* GRPASSWD:
+ * This symbol, if defined, indicates to the C program that struct group
+ * in <grp.h> contains gr_passwd.
+ */
+#$i_grp I_GRP /**/
+#$d_grpasswd GRPASSWD /**/
+
+/* I_NDBM:
+ * This symbol, if defined, indicates that <ndbm.h> exists and should
+ * be included.
+ */
+/* I_GDBMNDBM:
+ * This symbol, if defined, indicates that <gdbm/ndbm.h> exists and should
+ * be included. This was the location of the ndbm.h compatibility file
+ * in RedHat 7.1.
+ */
+/* I_GDBM_NDBM:
+ * This symbol, if defined, indicates that <gdbm-ndbm.h> exists and should
+ * be included. This is the location of the ndbm.h compatibility file
+ * in Debian 4.0.
+ */
+/* NDBM_H_USES_PROTOTYPES:
+ * This symbol, if defined, indicates that <ndbm.h> uses real ANSI C
+ * prototypes instead of K&R style function declarations without any
+ * parameter information. While ANSI C prototypes are supported in C++,
+ * K&R style function declarations will yield errors.
+ */
+/* GDBMNDBM_H_USES_PROTOTYPES:
+ * This symbol, if defined, indicates that <gdbm/ndbm.h> uses real ANSI C
+ * prototypes instead of K&R style function declarations without any
+ * parameter information. While ANSI C prototypes are supported in C++,
+ * K&R style function declarations will yield errors.
+ */
+/* GDBM_NDBM_H_USES_PROTOTYPES:
+ * This symbol, if defined, indicates that <gdbm-ndbm.h> uses real ANSI C
+ * prototypes instead of K&R style function declarations without any
+ * parameter information. While ANSI C prototypes are supported in C++,
+ * K&R style function declarations will yield errors.
+ */
+#$i_ndbm I_NDBM /**/
+#$i_gdbmndbm I_GDBMNDBM /**/
+#$i_gdbm_ndbm I_GDBM_NDBM /**/
+#$d_ndbm_h_uses_prototypes NDBM_H_USES_PROTOTYPES /**/
+#$d_gdbmndbm_h_uses_prototypes GDBMNDBM_H_USES_PROTOTYPES /**/
+#$d_gdbm_ndbm_h_uses_prototypes GDBM_NDBM_H_USES_PROTOTYPES /**/
+
+/* I_NETDB:
+ * This symbol, if defined, indicates that <netdb.h> exists and
+ * should be included.
+ */
+#$i_netdb I_NETDB /**/
+
+/* I_NET_ERRNO:
+ * This symbol, if defined, indicates that <net/errno.h> exists and
+ * should be included.
+ */
+#$i_neterrno I_NET_ERRNO /**/
+
+/* I_PWD:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <pwd.h>.
+ */
+/* PWQUOTA:
+ * This symbol, if defined, indicates to the C program that struct passwd
+ * contains pw_quota.
+ */
+/* PWAGE:
+ * This symbol, if defined, indicates to the C program that struct passwd
+ * contains pw_age.
+ */
+/* PWCHANGE:
+ * This symbol, if defined, indicates to the C program that struct passwd
+ * contains pw_change.
+ */
+/* PWCLASS:
+ * This symbol, if defined, indicates to the C program that struct passwd
+ * contains pw_class.
+ */
+/* PWEXPIRE:
+ * This symbol, if defined, indicates to the C program that struct passwd
+ * contains pw_expire.
+ */
+/* PWCOMMENT:
+ * This symbol, if defined, indicates to the C program that struct passwd
+ * contains pw_comment.
+ */
+/* PWGECOS:
+ * This symbol, if defined, indicates to the C program that struct passwd
+ * contains pw_gecos.
+ */
+/* PWPASSWD:
+ * This symbol, if defined, indicates to the C program that struct passwd
+ * contains pw_passwd.
+ */
+#$i_pwd I_PWD /**/
+#$d_pwquota PWQUOTA /**/
+#$d_pwage PWAGE /**/
+#$d_pwchange PWCHANGE /**/
+#$d_pwclass PWCLASS /**/
+#$d_pwexpire PWEXPIRE /**/
+#$d_pwcomment PWCOMMENT /**/
+#$d_pwgecos PWGECOS /**/
+#$d_pwpasswd PWPASSWD /**/
+
+/* I_SYSUIO:
+ * This symbol, if defined, indicates that <sys/uio.h> exists and
+ * should be included.
+ */
+#$i_sysuio I_SYSUIO /**/
+
+/* I_STDARG:
+ * This symbol, if defined, indicates that <stdarg.h> exists and should
+ * be included.
+ */
+/* I_VARARGS:
+ * This symbol, if defined, indicates to the C program that it should
+ * include <varargs.h>.
+ */
+#$i_stdarg I_STDARG /**/
+#$i_varargs I_VARARGS /**/
+
+/* Free_t:
+ * This variable contains the return type of free(). It is usually
+ * void, but occasionally int.
+ */
+/* Malloc_t:
+ * This symbol is the type of pointer returned by malloc and realloc.
+ */
+#define Malloc_t $malloctype /**/
+#define Free_t $freetype /**/
+
+/* PERL_MALLOC_WRAP:
+ * This symbol, if defined, indicates that we'd like malloc wrap checks.
+ */
+#$usemallocwrap PERL_MALLOC_WRAP /**/
+
+/* MYMALLOC:
+ * This symbol, if defined, indicates that we're using our own malloc.
+ */
+#$d_mymalloc MYMALLOC /**/
+
+/* CAN_PROTOTYPE:
+ * If defined, this macro indicates that the C compiler can handle
+ * function prototypes.
+ */
+/* _:
+ * This macro is used to declare function parameters for folks who want
+ * to make declarations with prototypes using a different style than
+ * the above macros. Use double parentheses. For example:
+ *
+ * int main _((int argc, char *argv[]));
+ */
+#$prototype CAN_PROTOTYPE /**/
+#ifdef CAN_PROTOTYPE
+#define _(args) args
+#else
+#define _(args) ()
+#endif
+
+/* SH_PATH:
+ * This symbol contains the full pathname to the shell used on this
+ * on this system to execute Bourne shell scripts. Usually, this will be
+ * /bin/sh, though it's possible that some systems will have /bin/ksh,
+ * /bin/pdksh, /bin/ash, /bin/bash, or even something such as
+ * D:/bin/sh.exe.
+ */
+#define SH_PATH "$sh" /**/
+
+/* SIG_NAME:
+ * This symbol contains a list of signal names in order of
+ * signal number. This is intended
+ * to be used as a static array initialization, like this:
+ * char *sig_name[] = { SIG_NAME };
+ * The signals in the list are separated with commas, and each signal
+ * is surrounded by double quotes. There is no leading SIG in the signal
+ * name, i.e. SIGQUIT is known as "QUIT".
+ * Gaps in the signal numbers (up to NSIG) are filled in with NUMnn,
+ * etc., where nn is the actual signal number (e.g. NUM37).
+ * The signal number for sig_name[i] is stored in sig_num[i].
+ * The last element is 0 to terminate the list with a NULL. This
+ * corresponds to the 0 at the end of the sig_name_init list.
+ * Note that this variable is initialized from the sig_name_init,
+ * not from sig_name (which is unused).
+ */
+/* SIG_NUM:
+ * This symbol contains a list of signal numbers, in the same order as the
+ * SIG_NAME list. It is suitable for static array initialization, as in:
+ * int sig_num[] = { SIG_NUM };
+ * The signals in the list are separated with commas, and the indices
+ * within that list and the SIG_NAME list match, so it's easy to compute
+ * the signal name from a number or vice versa at the price of a small
+ * dynamic linear lookup.
+ * Duplicates are allowed, but are moved to the end of the list.
+ * The signal number corresponding to sig_name[i] is sig_number[i].
+ * if (i < NSIG) then sig_number[i] == i.
+ * The last element is 0, corresponding to the 0 at the end of
+ * the sig_name_init list.
+ * Note that this variable is initialized from the sig_num_init,
+ * not from sig_num (which is unused).
+ */
+/* SIG_SIZE:
+ * This variable contains the number of elements of the SIG_NAME
+ * and SIG_NUM arrays, excluding the final NULL entry.
+ */
+#define SIG_NAME $sig_name_init /**/
+#define SIG_NUM $sig_num_init /**/
+#define SIG_SIZE $sig_size /**/
+
+/* STDCHAR:
+ * This symbol is defined to be the type of char used in stdio.h.
+ * It has the values "unsigned char" or "char".
+ */
+#define STDCHAR $stdchar /**/
+
+/* VOIDFLAGS:
+ * This symbol indicates how much support of the void type is given by this
+ * compiler. What various bits mean:
+ *
+ * 1 = supports declaration of void
+ * 2 = supports arrays of pointers to functions returning void
+ * 4 = supports comparisons between pointers to void functions and
+ * addresses of void functions
+ * 8 = supports declaration of generic void pointers
+ *
+ * The package designer should define VOIDUSED to indicate the requirements
+ * of the package. This can be done either by #defining VOIDUSED before
+ * including config.h, or by defining defvoidused in Myinit.U. If the
+ * latter approach is taken, only those flags will be tested. If the
+ * level of void support necessary is not present, defines void to int.
+ */
+#ifndef VOIDUSED
+#define VOIDUSED $defvoidused
+#endif
+#define VOIDFLAGS $voidflags
+#if (VOIDFLAGS & VOIDUSED) != VOIDUSED
+#define void int /* is void to be avoided? */
+#define M_VOID /* Xenix strikes again */
+#endif
+
+/* PERL_USE_DEVEL:
+ * This symbol, if defined, indicates that Perl was configured with
+ * -Dusedevel, to enable development features. This should not be
+ * done for production builds.
+ */
+#$usedevel PERL_USE_DEVEL /**/
+
+/* HAS_ATOLF:
+ * This symbol, if defined, indicates that the atolf routine is
+ * available to convert strings into long doubles.
+ */
+#$d_atolf HAS_ATOLF /**/
+
+/* HAS_ATOLL:
+ * This symbol, if defined, indicates that the atoll routine is
+ * available to convert strings into long longs.
+ */
+#$d_atoll HAS_ATOLL /**/
+
+/* HAS__FWALK:
+ * This symbol, if defined, indicates that the _fwalk system call is
+ * available to apply a function to all the file handles.
+ */
+#$d__fwalk HAS__FWALK /**/
+
+/* HAS_AINTL:
+ * This symbol, if defined, indicates that the aintl routine is
+ * available. If copysignl is also present we can emulate modfl.
+ */
+#$d_aintl HAS_AINTL /**/
+
+/* HAS_BUILTIN_CHOOSE_EXPR:
+ * Can we handle GCC builtin for compile-time ternary-like expressions
+ */
+/* HAS_BUILTIN_EXPECT:
+ * Can we handle GCC builtin for telling that certain values are more
+ * likely
+ */
+#$d_builtin_expect HAS_BUILTIN_EXPECT /**/
+#$d_builtin_choose_expr HAS_BUILTIN_CHOOSE_EXPR /**/
+
+/* HAS_C99_VARIADIC_MACROS:
+ * If defined, the compiler supports C99 variadic macros.
+ */
+#$d_c99_variadic_macros HAS_C99_VARIADIC_MACROS /**/
+
+/* HAS_CLASS:
+ * This symbol, if defined, indicates that the class routine is
+ * available to classify doubles. Available for example in AIX.
+ * The returned values are defined in <float.h> and are:
+ *
+ * FP_PLUS_NORM Positive normalized, nonzero
+ * FP_MINUS_NORM Negative normalized, nonzero
+ * FP_PLUS_DENORM Positive denormalized, nonzero
+ * FP_MINUS_DENORM Negative denormalized, nonzero
+ * FP_PLUS_ZERO +0.0
+ * FP_MINUS_ZERO -0.0
+ * FP_PLUS_INF +INF
+ * FP_MINUS_INF -INF
+ * FP_NANS Signaling Not a Number (NaNS)
+ * FP_NANQ Quiet Not a Number (NaNQ)
+ */
+#$d_class HAS_CLASS /**/
+
+/* HAS_CLEARENV:
+ * This symbol, if defined, indicates that the clearenv () routine is
+ * available for use.
+ */
+#$d_clearenv HAS_CLEARENV /**/
+
+/* HAS_STRUCT_CMSGHDR:
+ * This symbol, if defined, indicates that the struct cmsghdr
+ * is supported.
+ */
+#$d_cmsghdr_s HAS_STRUCT_CMSGHDR /**/
+
+/* HAS_COPYSIGNL:
+ * This symbol, if defined, indicates that the copysignl routine is
+ * available. If aintl is also present we can emulate modfl.
+ */
+#$d_copysignl HAS_COPYSIGNL /**/
+
+/* USE_CPLUSPLUS:
+ * This symbol, if defined, indicates that a C++ compiler was
+ * used to compiled Perl and will be used to compile extensions.
+ */
+#$d_cplusplus USE_CPLUSPLUS /**/
+
+/* HAS_DBMINIT_PROTO:
+ * This symbol, if defined, indicates that the system provides
+ * a prototype for the dbminit() function. Otherwise, it is up
+ * to the program to supply one. A good guess is
+ * extern int dbminit(char *);
+ */
+#$d_dbminitproto HAS_DBMINIT_PROTO /**/
+
+/* HAS_DIR_DD_FD:
+ * This symbol, if defined, indicates that the the DIR* dirstream
+ * structure contains a member variable named dd_fd.
+ */
+#$d_dir_dd_fd HAS_DIR_DD_FD /**/
+
+/* HAS_DIRFD:
+ * This manifest constant lets the C program know that dirfd
+ * is available.
+ */
+#$d_dirfd HAS_DIRFD /**/
+
+/* DLSYM_NEEDS_UNDERSCORE:
+ * This symbol, if defined, indicates that we need to prepend an
+ * underscore to the symbol name before calling dlsym(). This only
+ * makes sense if you *have* dlsym, which we will presume is the
+ * case if you're using dl_dlopen.xs.
+ */
+#$d_dlsymun DLSYM_NEEDS_UNDERSCORE /**/
+
+/* HAS_FAST_STDIO:
+ * This symbol, if defined, indicates that the "fast stdio"
+ * is available to manipulate the stdio buffers directly.
+ */
+#$d_faststdio HAS_FAST_STDIO /**/
+
+/* HAS_FCHDIR:
+ * This symbol, if defined, indicates that the fchdir routine is
+ * available to change directory using a file descriptor.
+ */
+#$d_fchdir HAS_FCHDIR /**/
+
+/* FCNTL_CAN_LOCK:
+ * This symbol, if defined, indicates that fcntl() can be used
+ * for file locking. Normally on Unix systems this is defined.
+ * It may be undefined on VMS.
+ */
+#$d_fcntl_can_lock FCNTL_CAN_LOCK /**/
+
+/* HAS_FINITE:
+ * This symbol, if defined, indicates that the finite routine is
+ * available to check whether a double is finite (non-infinity non-NaN).
+ */
+#$d_finite HAS_FINITE /**/
+
+/* HAS_FINITEL:
+ * This symbol, if defined, indicates that the finitel routine is
+ * available to check whether a long double is finite
+ * (non-infinity non-NaN).
+ */
+#$d_finitel HAS_FINITEL /**/
+
+/* HAS_FLOCK_PROTO:
+ * This symbol, if defined, indicates that the system provides
+ * a prototype for the flock() function. Otherwise, it is up
+ * to the program to supply one. A good guess is
+ * extern int flock(int, int);
+ */
+#$d_flockproto HAS_FLOCK_PROTO /**/
+
+/* HAS_FP_CLASS:
+ * This symbol, if defined, indicates that the fp_class routine is
+ * available to classify doubles. Available for example in Digital UNIX.
+ * The returned values are defined in <math.h> and are:
+ *
+ * FP_SNAN Signaling NaN (Not-a-Number)
+ * FP_QNAN Quiet NaN (Not-a-Number)
+ * FP_POS_INF +infinity
+ * FP_NEG_INF -infinity
+ * FP_POS_NORM Positive normalized
+ * FP_NEG_NORM Negative normalized
+ * FP_POS_DENORM Positive denormalized
+ * FP_NEG_DENORM Negative denormalized
+ * FP_POS_ZERO +0.0 (positive zero)
+ * FP_NEG_ZERO -0.0 (negative zero)
+ */
+#$d_fp_class HAS_FP_CLASS /**/
+
+/* HAS_FPCLASS:
+ * This symbol, if defined, indicates that the fpclass routine is
+ * available to classify doubles. Available for example in Solaris/SVR4.
+ * The returned values are defined in <ieeefp.h> and are:
+ *
+ * FP_SNAN signaling NaN
+ * FP_QNAN quiet NaN
+ * FP_NINF negative infinity
+ * FP_PINF positive infinity
+ * FP_NDENORM negative denormalized non-zero
+ * FP_PDENORM positive denormalized non-zero
+ * FP_NZERO negative zero
+ * FP_PZERO positive zero
+ * FP_NNORM negative normalized non-zero
+ * FP_PNORM positive normalized non-zero
+ */
+#$d_fpclass HAS_FPCLASS /**/
+
+/* HAS_FPCLASSIFY:
+ * This symbol, if defined, indicates that the fpclassify routine is
+ * available to classify doubles. Available for example in HP-UX.
+ * The returned values are defined in <math.h> and are
+ *
+ * FP_NORMAL Normalized
+ * FP_ZERO Zero
+ * FP_INFINITE Infinity
+ * FP_SUBNORMAL Denormalized
+ * FP_NAN NaN
+ *
+ */
+#$d_fpclassify HAS_FPCLASSIFY /**/
+
+/* HAS_FPCLASSL:
+ * This symbol, if defined, indicates that the fpclassl routine is
+ * available to classify long doubles. Available for example in IRIX.
+ * The returned values are defined in <ieeefp.h> and are:
+ *
+ * FP_SNAN signaling NaN
+ * FP_QNAN quiet NaN
+ * FP_NINF negative infinity
+ * FP_PINF positive infinity
+ * FP_NDENORM negative denormalized non-zero
+ * FP_PDENORM positive denormalized non-zero
+ * FP_NZERO negative zero
+ * FP_PZERO positive zero
+ * FP_NNORM negative normalized non-zero
+ * FP_PNORM positive normalized non-zero
+ */
+#$d_fpclassl HAS_FPCLASSL /**/
+
+/* HAS_FPOS64_T:
+ * This symbol will be defined if the C compiler supports fpos64_t.
+ */
+#$d_fpos64_t HAS_FPOS64_T /**/
+
+/* HAS_FREXPL:
+ * This symbol, if defined, indicates that the frexpl routine is
+ * available to break a long double floating-point number into
+ * a normalized fraction and an integral power of 2.
+ */
+#$d_frexpl HAS_FREXPL /**/
+
+/* HAS_STRUCT_FS_DATA:
+ * This symbol, if defined, indicates that the struct fs_data
+ * to do statfs() is supported.
+ */
+#$d_fs_data_s HAS_STRUCT_FS_DATA /**/
+
+/* HAS_FSEEKO:
+ * This symbol, if defined, indicates that the fseeko routine is
+ * available to fseek beyond 32 bits (useful for ILP32 hosts).
+ */
+#$d_fseeko HAS_FSEEKO /**/
+
+/* HAS_FSTATFS:
+ * This symbol, if defined, indicates that the fstatfs routine is
+ * available to stat filesystems by file descriptors.
+ */
+#$d_fstatfs HAS_FSTATFS /**/
+
+/* HAS_FSYNC:
+ * This symbol, if defined, indicates that the fsync routine is
+ * available to write a file's modified data and attributes to
+ * permanent storage.
+ */
+#$d_fsync HAS_FSYNC /**/
+
+/* HAS_FTELLO:
+ * This symbol, if defined, indicates that the ftello routine is
+ * available to ftell beyond 32 bits (useful for ILP32 hosts).
+ */
+#$d_ftello HAS_FTELLO /**/
+
+/* HAS_FUTIMES:
+ * This symbol, if defined, indicates that the futimes routine is
+ * available to change file descriptor time stamps with struct timevals.
+ */
+#$d_futimes HAS_FUTIMES /**/
+
+/* HAS_GETADDRINFO:
+ * This symbol, if defined, indicates that the getaddrinfo() function
+ * is available for use.
+ */
+#$d_getaddrinfo HAS_GETADDRINFO /**/
+
+/* HAS_GETCWD:
+ * This symbol, if defined, indicates that the getcwd routine is
+ * available to get the current working directory.
+ */
+#$d_getcwd HAS_GETCWD /**/
+
+/* HAS_GETESPWNAM:
+ * This symbol, if defined, indicates that the getespwnam system call is
+ * available to retrieve enhanced (shadow) password entries by name.
+ */
+#$d_getespwnam HAS_GETESPWNAM /**/
+
+/* HAS_GETFSSTAT:
+ * This symbol, if defined, indicates that the getfsstat routine is
+ * available to stat filesystems in bulk.
+ */
+#$d_getfsstat HAS_GETFSSTAT /**/
+
+/* HAS_GETITIMER:
+ * This symbol, if defined, indicates that the getitimer routine is
+ * available to return interval timers.
+ */
+#$d_getitimer HAS_GETITIMER /**/
+
+/* HAS_GETMNT:
+ * This symbol, if defined, indicates that the getmnt routine is
+ * available to get filesystem mount info by filename.
+ */
+#$d_getmnt HAS_GETMNT /**/
+
+/* HAS_GETMNTENT:
+ * This symbol, if defined, indicates that the getmntent routine is
+ * available to iterate through mounted file systems to get their info.
+ */
+#$d_getmntent HAS_GETMNTENT /**/
+
+/* HAS_GETNAMEINFO:
+ * This symbol, if defined, indicates that the getnameinfo() function
+ * is available for use.
+ */
+#$d_getnameinfo HAS_GETNAMEINFO /**/
+
+/* HAS_GETPRPWNAM:
+ * This symbol, if defined, indicates that the getprpwnam system call is
+ * available to retrieve protected (shadow) password entries by name.
+ */
+#$d_getprpwnam HAS_GETPRPWNAM /**/
+
+/* HAS_GETSPNAM:
+ * This symbol, if defined, indicates that the getspnam system call is
+ * available to retrieve SysV shadow password entries by name.
+ */
+#$d_getspnam HAS_GETSPNAM /**/
+
+/* HAS_HASMNTOPT:
+ * This symbol, if defined, indicates that the hasmntopt routine is
+ * available to query the mount options of file systems.
+ */
+#$d_hasmntopt HAS_HASMNTOPT /**/
+
+/* HAS_ILOGBL:
+ * This symbol, if defined, indicates that the ilogbl routine is
+ * available. If scalbnl is also present we can emulate frexpl.
+ */
+#$d_ilogbl HAS_ILOGBL /**/
+
+/* HAS_INETNTOP:
+ * This symbol, if defined, indicates that the inet_ntop() function
+ * is available to parse IPv4 and IPv6 strings.
+ */
+#$d_inetntop HAS_INETNTOP /**/
+
+/* HAS_INETPTON:
+ * This symbol, if defined, indicates that the inet_pton() function
+ * is available to parse IPv4 and IPv6 strings.
+ */
+#$d_inetpton HAS_INETPTON /**/
+
+/* HAS_INT64_T:
+ * This symbol will defined if the C compiler supports int64_t.
+ * Usually the <inttypes.h> needs to be included, but sometimes
+ * <sys/types.h> is enough.
+ */
+#$d_int64_t HAS_INT64_T /**/
+
+/* HAS_ISFINITE:
+ * This symbol, if defined, indicates that the isfinite routine is
+ * available to check whether a double is finite (non-infinity non-NaN).
+ */
+#$d_isfinite HAS_ISFINITE /**/
+
+/* HAS_ISINF:
+ * This symbol, if defined, indicates that the isinf routine is
+ * available to check whether a double is an infinity.
+ */
+#$d_isinf HAS_ISINF /**/
+
+/* HAS_ISNAN:
+ * This symbol, if defined, indicates that the isnan routine is
+ * available to check whether a double is a NaN.
+ */
+#$d_isnan HAS_ISNAN /**/
+
+/* HAS_ISNANL:
+ * This symbol, if defined, indicates that the isnanl routine is
+ * available to check whether a long double is a NaN.
+ */
+#$d_isnanl HAS_ISNANL /**/
+
+/* HAS_LDBL_DIG:
+ * This symbol, if defined, indicates that this system's <float.h>
+ * or <limits.h> defines the symbol LDBL_DIG, which is the number
+ * of significant digits in a long double precision number. Unlike
+ * for DBL_DIG, there's no good guess for LDBL_DIG if it is undefined.
+ */
+#$d_ldbl_dig HAS_LDBL_DIG /* */
+
+/* LIBM_LIB_VERSION:
+ * This symbol, if defined, indicates that libm exports _LIB_VERSION
+ * and that math.h defines the enum to manipulate it.
+ */
+#$d_libm_lib_version LIBM_LIB_VERSION /**/
+
+/* HAS_MADVISE:
+ * This symbol, if defined, indicates that the madvise system call is
+ * available to map a file into memory.
+ */
+#$d_madvise HAS_MADVISE /**/
+
+/* HAS_MALLOC_SIZE:
+ * This symbol, if defined, indicates that the malloc_size
+ * routine is available for use.
+ */
+#$d_malloc_size HAS_MALLOC_SIZE /**/
+
+/* HAS_MALLOC_GOOD_SIZE:
+ * This symbol, if defined, indicates that the malloc_good_size
+ * routine is available for use.
+ */
+#$d_malloc_good_size HAS_MALLOC_GOOD_SIZE /**/
+
+/* HAS_MKDTEMP:
+ * This symbol, if defined, indicates that the mkdtemp routine is
+ * available to exclusively create a uniquely named temporary directory.
+ */
+#$d_mkdtemp HAS_MKDTEMP /**/
+
+/* HAS_MKSTEMPS:
+ * This symbol, if defined, indicates that the mkstemps routine is
+ * available to exclusively create and open a uniquely named
+ * (with a suffix) temporary file.
+ */
+#$d_mkstemps HAS_MKSTEMPS /**/
+
+/* HAS_MODFL:
+ * This symbol, if defined, indicates that the modfl routine is
+ * available to split a long double x into a fractional part f and
+ * an integer part i such that |f| < 1.0 and (f + i) = x.
+ */
+/* HAS_MODFL_PROTO:
+ * This symbol, if defined, indicates that the system provides
+ * a prototype for the modfl() function. Otherwise, it is up
+ * to the program to supply one.
+ */
+/* HAS_MODFL_POW32_BUG:
+ * This symbol, if defined, indicates that the modfl routine is
+ * broken for long doubles >= pow(2, 32).
+ * For example from 4294967303.150000 one would get 4294967302.000000
+ * and 1.150000. The bug has been seen in certain versions of glibc,
+ * release 2.2.2 is known to be okay.
+ */
+#$d_modfl HAS_MODFL /**/
+#$d_modflproto HAS_MODFL_PROTO /**/
+#$d_modfl_pow32_bug HAS_MODFL_POW32_BUG /**/
+
+/* HAS_MPROTECT:
+ * This symbol, if defined, indicates that the mprotect system call is
+ * available to modify the access protection of a memory mapped file.
+ */
+#$d_mprotect HAS_MPROTECT /**/
+
+/* HAS_STRUCT_MSGHDR:
+ * This symbol, if defined, indicates that the struct msghdr
+ * is supported.
+ */
+#$d_msghdr_s HAS_STRUCT_MSGHDR /**/
+
+/* HAS_NL_LANGINFO:
+ * This symbol, if defined, indicates that the nl_langinfo routine is
+ * available to return local data. You will also need <langinfo.h>
+ * and therefore I_LANGINFO.
+ */
+#$d_nl_langinfo HAS_NL_LANGINFO /**/
+
+/* HAS_OFF64_T:
+ * This symbol will be defined if the C compiler supports off64_t.
+ */
+#$d_off64_t HAS_OFF64_T /**/
+
+/* HAS_PRCTL:
+ * This symbol, if defined, indicates that the prctl routine is
+ * available to set process title.
+ */
+/* HAS_PRCTL_SET_NAME:
+ * This symbol, if defined, indicates that the prctl routine is
+ * available to set process title and supports PR_SET_NAME.
+ */
+#$d_prctl HAS_PRCTL /**/
+#$d_prctl_set_name HAS_PRCTL_SET_NAME /**/
+
+/* HAS_PROCSELFEXE:
+ * This symbol is defined if PROCSELFEXE_PATH is a symlink
+ * to the absolute pathname of the executing program.
+ */
+/* PROCSELFEXE_PATH:
+ * If HAS_PROCSELFEXE is defined this symbol is the filename
+ * of the symbolic link pointing to the absolute pathname of
+ * the executing program.
+ */
+#$d_procselfexe HAS_PROCSELFEXE /**/
+#if defined(HAS_PROCSELFEXE) && !defined(PROCSELFEXE_PATH)
+#define PROCSELFEXE_PATH $procselfexe /**/
+#endif
+
+/* HAS_PTHREAD_ATTR_SETSCOPE:
+ * This symbol, if defined, indicates that the pthread_attr_setscope
+ * system call is available to set the contention scope attribute of
+ * a thread attribute object.
+ */
+#$d_pthread_attr_setscope HAS_PTHREAD_ATTR_SETSCOPE /**/
+
+/* HAS_READV:
+ * This symbol, if defined, indicates that the readv routine is
+ * available to do gather reads. You will also need <sys/uio.h>
+ * and there I_SYSUIO.
+ */
+#$d_readv HAS_READV /**/
+
+/* HAS_RECVMSG:
+ * This symbol, if defined, indicates that the recvmsg routine is
+ * available to send structured socket messages.
+ */
+#$d_recvmsg HAS_RECVMSG /**/
+
+/* HAS_SBRK_PROTO:
+ * This symbol, if defined, indicates that the system provides
+ * a prototype for the sbrk() function. Otherwise, it is up
+ * to the program to supply one. Good guesses are
+ * extern void* sbrk(int);
+ * extern void* sbrk(size_t);
+ */
+#$d_sbrkproto HAS_SBRK_PROTO /**/
+
+/* HAS_SCALBNL:
+ * This symbol, if defined, indicates that the scalbnl routine is
+ * available. If ilogbl is also present we can emulate frexpl.
+ */
+#$d_scalbnl HAS_SCALBNL /**/
+
+/* HAS_SENDMSG:
+ * This symbol, if defined, indicates that the sendmsg routine is
+ * available to send structured socket messages.
+ */
+#$d_sendmsg HAS_SENDMSG /**/
+
+/* HAS_SETITIMER:
+ * This symbol, if defined, indicates that the setitimer routine is
+ * available to set interval timers.
+ */
+#$d_setitimer HAS_SETITIMER /**/
+
+/* HAS_SETPROCTITLE:
+ * This symbol, if defined, indicates that the setproctitle routine is
+ * available to set process title.
+ */
+#$d_setproctitle HAS_SETPROCTITLE /**/
+
+/* USE_SFIO:
+ * This symbol, if defined, indicates that sfio should
+ * be used.
+ */
+#$d_sfio USE_SFIO /**/
+
+/* HAS_SIGNBIT:
+ * This symbol, if defined, indicates that the signbit routine is
+ * available to check if the given number has the sign bit set.
+ * This should include correct testing of -0.0. This will only be set
+ * if the signbit() routine is safe to use with the NV type used internally
+ * in perl. Users should call Perl_signbit(), which will be #defined to
+ * the system's signbit() function or macro if this symbol is defined.
+ */
+#$d_signbit HAS_SIGNBIT /**/
+
+/* HAS_SIGPROCMASK:
+ * This symbol, if defined, indicates that the sigprocmask
+ * system call is available to examine or change the signal mask
+ * of the calling process.
+ */
+#$d_sigprocmask HAS_SIGPROCMASK /**/
+
+/* USE_SITECUSTOMIZE:
+ * This symbol, if defined, indicates that sitecustomize should
+ * be used.
+ */
+#ifndef USE_SITECUSTOMIZE
+#$usesitecustomize USE_SITECUSTOMIZE /**/
+#endif
+
+/* HAS_SNPRINTF:
+ * This symbol, if defined, indicates that the snprintf () library
+ * function is available for use.
+ */
+/* HAS_VSNPRINTF:
+ * This symbol, if defined, indicates that the vsnprintf () library
+ * function is available for use.
+ */
+#$d_snprintf HAS_SNPRINTF /**/
+#$d_vsnprintf HAS_VSNPRINTF /**/