X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/8b7d8421acfa75c6cba0f3a12f068c4c4766abeb..f8b4793a6f10ea4dc4c1b16b3a91f6ca1b0ae3fd:/Configure

diff --git a/Configure b/Configure
index 1bd54cb..8991f1a 100755
--- a/Configure
+++ b/Configure
@@ -17,10 +17,16 @@
 # comp.sources.misc and is available on CPAN under authors/id/RAM so
 # you may fetch it yourself from your nearest archive site.)
 #
+#
+# Though this script was generated by metaconfig, it is OK to send
+# patches against it. It's up to the Configure pumpkin to backport
+# the patch to the metaunits if it is accepted.
+# See Porting/pumpkin.pod for more information on metaconfig.
+#
 
 # $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $
 #
-# Generated on Tue May 31 08:06:05 CEST 2005 [metaconfig 3.0 PL70]
+# Generated on Mon Sep 12 15:44:06 CEST 2005 [metaconfig 3.0 PL70]
 # (with additional metaconfig patches by perlbug@perl.org)
 
 cat >c1$$ <<EOF
@@ -544,6 +550,8 @@ longlongsize=''
 d_lseekproto=''
 d_lstat=''
 d_madvise=''
+d_malloc_good_size=''
+d_malloc_size=''
 d_mblen=''
 d_mbstowcs=''
 d_mbtowc=''
@@ -1002,6 +1010,7 @@ perl5=''
 perladmin=''
 perlpath=''
 d_nv_preserves_uv=''
+d_nv_zero_is_allbits_zero=''
 i16size=''
 i16type=''
 i32size=''
@@ -7757,7 +7766,7 @@ any other libraries needed on this system (such as -lm, etc.).  Since
 your system supports dynamic loading, it is probably possible to build
 a shared libperl.$so.  If you will have more than one executable linked
 to libperl.$so, this will significantly reduce the size of each
-executable, but it may have a noticeable affect on performance.  The
+executable, but it may have a noticeable effect on performance.  The
 default is probably sensible for your system.
 $also
 
@@ -11024,6 +11033,7 @@ int main() {
 		exit(1);
 }
 EOM
+val=$undef
 set dirfd
 if eval $compile; then
 	val="$define"
@@ -14239,6 +14249,14 @@ eval $inlibc
 set madvise d_madvise
 eval $inlibc
 
+: see if malloc_size exists
+set malloc_size d_malloc_size
+eval $inlibc
+
+: see if malloc_size_good exists
+set malloc_good_size d_malloc_good_size
+eval $inlibc
+
 : see if mblen exists
 set mblen d_mblen
 eval $inlibc
@@ -14833,6 +14851,128 @@ esac
 
 $rm -f try.* try
 
+$echo "Checking whether NV 0.0 is all bits zero in memory..." >&4
+: volatile so that the compiler has to store it out to memory.
+if test X"$d_volatile" = X"$define"; then
+	volatile=volatile
+fi
+$cat <<EOP >try.c
+#include <stdio.h>
+#$i_stdlib I_STDLIB
+#ifdef I_STDLIB
+#include <stdlib.h>
+#endif
+#$i_string I_STRING
+#ifdef I_STRING
+#  include <string.h>
+#else
+#  include <strings.h>
+#endif
+#include <sys/types.h>
+#include <signal.h>
+#ifdef SIGFPE
+$volatile int bletched = 0;
+$signal_t blech(s) int s; { bletched = 1; }
+#endif
+
+int checkit($nvtype d, char *where) {
+    unsigned char *p = (char *)&d;
+    unsigned char *end = p + sizeof(d);
+    int fail = 0;
+
+    while (p < end)
+	fail += *p++;
+
+    if (!fail)
+	return 0;
+
+    p = (char *)&d;
+    printf("No - %s: 0x", where);
+    while (p < end)
+	printf ("%02X", *p++);
+    printf("\n");
+    return 1;
+}
+
+int main(int argc, char **argv) {
+    $nvtype d = 0.0;
+    int fail = 0;
+    fail += checkit(d, "0.0");
+
+    /* The compiler shouldn't be assuming that bletched is 0  */
+    d = bletched;
+
+    fail += checkit(d, "bleched");
+
+#ifdef SIGFPE
+    signal(SIGFPE, blech);
+#endif
+
+    /* Paranoia - the compiler should have no way of knowing that ANSI says
+       that argv[argc] will always be NULL.  Actually, if it did assume this it
+       would be buggy, as this is C and main() can be called from elsewhere in
+       the program.  */
+    d = argv[argc] ? 1 : 0;
+
+    if (d) {
+	printf("Odd argv[argc]=%p, d=%g\n", argv[argc], d);
+    }
+
+    fail += checkit(d, "ternary");
+
+    memset(&d, sizeof(d), argv[argc] ? 1 : 0);
+
+    if (d != 0.0) {
+	printf("No - memset doesn't give 0.0\n");
+	/* This might just blow up:  */
+	printf("(gives %g)\n", d);
+	return 1;
+    }
+    
+#ifdef SIGFPE
+    if (bletched) {
+	printf("No - something bleched\n");
+	return 1;
+    }
+#endif
+    if (fail) {
+      printf("No - %d fail(s)\n", fail);
+      return 1;
+    }
+    printf("Yes\n");
+    return 0;
+}
+EOP
+set try
+
+d_nv_zero_is_allbits_zero="$undef"
+if eval $compile; then
+    xxx="`$run ./try`"
+    case "$?" in
+	0)
+	    case "$xxx" in
+		Yes)  cat >&4 <<EOM
+0.0 is represented as all bits zero in memory
+EOM
+		    d_nv_zero_is_allbits_zero="$define"
+		    ;;
+		*)  cat >&4 <<EOM
+0.0 is not represented as all bits zero in memory
+EOM
+		    d_nv_zero_is_allbits_zero="$undef"
+		    ;;
+	    esac
+	    ;;
+	*)  cat >&4 <<EOM
+0.0 is not represented as all bits zero in memory
+EOM
+	    d_nv_zero_is_allbits_zero="$undef"
+	    ;;
+    esac
+fi
+
+$rm -f try.* try
+
 
 : check for off64_t
 echo " "
@@ -18952,7 +19092,9 @@ if $cc -o foobar $ccflags $ldflags foo$_o bar$_a $libs > /dev/null 2>&1 &&
 	$run ./foobar >/dev/null 2>&1; then
 	echo "$ar appears to generate random libraries itself."
 	orderlib=false
-	ranlib=":"
+	if [ "X$ranlib" = "X" ]; then
+	    ranlib=":"
+	fi
 elif $ar ts bar$_a >/dev/null 2>&1 &&
 	$cc -o foobar $ccflags $ldflags foo$_o bar$_a $libs > /dev/null 2>&1 &&
 	$run ./foobar >/dev/null 2>&1; then
@@ -19207,6 +19349,12 @@ int main() {
 #endif
 
 #ifndef NSIG
+#  ifdef _SIG_MAX
+#    define NSIG (_SIG_MAX+1)
+#  endif
+#endif
+
+#ifndef NSIG
 #  ifdef MAXSIG
 #    define NSIG (MAXSIG+1)
 #  endif
@@ -19220,7 +19368,7 @@ int main() {
 
 #ifndef NSIG
 #  ifdef SIGARRAYSIZE
-#    define NSIG (SIGARRAYSIZE+1) /* Not sure of the +1 */
+#    define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */
 #  endif
 #endif
 
@@ -19859,7 +20007,7 @@ $echo "Guessing which symbols your C compiler and preprocessor define..." >&4
 $cat <<'EOSH' > Cppsym.know
 a29k ABI64 aegis AES_SOURCE AIX AIX32 AIX370
 AIX41 AIX42 AIX43 AIX_SOURCE aixpc ALL_SOURCE
-alliant alpha am29000 AM29000 AMD64 amiga AMIGAOS AMIX
+alliant alpha am29000 AM29000 AMD64 amd64 amiga AMIGAOS AMIX
 ansi ANSI_C_SOURCE apollo ardent ARM32 atarist att386 att3b
 BeOS BIG_ENDIAN BIT_MSF bsd BSD bsd43 bsd4_2 bsd4_3 BSD4_3 bsd4_4
 BSD_4_3 BSD_4_4 BSD_NET2 BSD_TIME BSD_TYPES BSDCOMPAT bsdi
@@ -19917,7 +20065,7 @@ USE_BSD USE_FILE_OFFSET64 USE_GNU USE_ISOC9X USE_LARGEFILE USE_LARGEFILE64
 USE_MISC USE_POSIX USE_POSIX199309 USE_POSIX199506 USE_POSIX2
 USE_REENTRANT USE_SVID USE_UNIX98 USE_XOPEN USE_XOPEN_EXTENDED
 USGr4 USGr4_2
-Utek UTek UTS UWIN uxpm uxps vax venix VMESA vms xenix Xenix286
+Utek UTek UTS UWIN uxpm uxps vax venix VMESA vms x86_64 xenix Xenix286
 XOPEN_SOURCE XOPEN_SOURCE_EXTENDED XPG2 XPG2_EXTENDED
 XPG3 XPG3_EXTENDED XPG4 XPG4_EXTENDED
 z8000
@@ -20976,6 +21124,8 @@ d_longlong='$d_longlong'
 d_lseekproto='$d_lseekproto'
 d_lstat='$d_lstat'
 d_madvise='$d_madvise'
+d_malloc_good_size='$d_malloc_good_size'
+d_malloc_size='$d_malloc_size'
 d_mblen='$d_mblen'
 d_mbstowcs='$d_mbstowcs'
 d_mbtowc='$d_mbtowc'
@@ -21012,6 +21162,7 @@ d_mymalloc='$d_mymalloc'
 d_nice='$d_nice'
 d_nl_langinfo='$d_nl_langinfo'
 d_nv_preserves_uv='$d_nv_preserves_uv'
+d_nv_zero_is_allbits_zero='$d_nv_zero_is_allbits_zero'
 d_off64_t='$d_off64_t'
 d_old_pthread_create_joinable='$d_old_pthread_create_joinable'
 d_oldpthreads='$d_oldpthreads'