| 1 | # hints/linux.sh |
| 2 | # Original version by rsanders |
| 3 | # Additional support by Kenneth Albanowski <kjahds@kjahds.com> |
| 4 | # |
| 5 | # ELF support by H.J. Lu <hjl@nynexst.com> |
| 6 | # Additional info from Nigel Head <nhead@ESOC.bitnet> |
| 7 | # and Kenneth Albanowski <kjahds@kjahds.com> |
| 8 | # |
| 9 | # Consolidated by Andy Dougherty <doughera@lafayette.edu> |
| 10 | # |
| 11 | # Updated Thu Feb 8 11:56:10 EST 1996 |
| 12 | |
| 13 | # Updated Thu May 30 10:50:22 EDT 1996 by <doughera@lafayette.edu> |
| 14 | |
| 15 | # Updated Fri Jun 21 11:07:54 EDT 1996 |
| 16 | # NDBM support for ELF re-enabled by <kjahds@kjahds.com> |
| 17 | |
| 18 | # No version of Linux supports setuid scripts. |
| 19 | d_suidsafe='undef' |
| 20 | |
| 21 | # No version of Linux needs libutil for perl. |
| 22 | i_libutil='undef' |
| 23 | |
| 24 | # Debian and Red Hat, and perhaps other vendors, provide both runtime and |
| 25 | # development packages for some libraries. The runtime packages contain shared |
| 26 | # libraries with version information in their names (e.g., libgdbm.so.1.7.3); |
| 27 | # the development packages supplement this with versionless shared libraries |
| 28 | # (e.g., libgdbm.so). |
| 29 | # |
| 30 | # If you want to link against such a library, you must install the development |
| 31 | # version of the package. |
| 32 | # |
| 33 | # These packages use a -dev naming convention in both Debian and Red Hat: |
| 34 | # libgdbmg1 (non-development version of GNU libc 2-linked GDBM library) |
| 35 | # libgdbmg1-dev (development version of GNU libc 2-linked GDBM library) |
| 36 | # So make sure that for any libraries you wish to link Perl with under |
| 37 | # Debian or Red Hat you have the -dev packages installed. |
| 38 | |
| 39 | # SuSE Linux can be used as cross-compilation host for Cray XT4 Catamount/Qk. |
| 40 | if test -d /opt/xt-pe |
| 41 | then |
| 42 | case "`cc -V 2>&1`" in |
| 43 | *catamount*) . hints/catamount.sh; return ;; |
| 44 | esac |
| 45 | fi |
| 46 | |
| 47 | # Some operating systems (e.g., Solaris 2.6) will link to a versioned shared |
| 48 | # library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an |
| 49 | # appropriate version of libgdbm, if one is available; Linux, however, doesn't |
| 50 | # do the implicit mapping. |
| 51 | ignore_versioned_solibs='y' |
| 52 | |
| 53 | # BSD compatibility library no longer needed |
| 54 | # 'kaffe' has a /usr/lib/libnet.so which is not at all relevant for perl. |
| 55 | # bind causes issues with several reentrant functions |
| 56 | set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /' -e 's/ bind / /'` |
| 57 | shift |
| 58 | libswanted="$*" |
| 59 | |
| 60 | # Debian 4.0 puts ndbm in the -lgdbm_compat library. |
| 61 | libswanted="$libswanted gdbm_compat" |
| 62 | |
| 63 | # If you have glibc, then report the version for ./myconfig bug reporting. |
| 64 | # (Configure doesn't need to know the specific version since it just uses |
| 65 | # gcc to load the library for all tests.) |
| 66 | # We don't use __GLIBC__ and __GLIBC_MINOR__ because they |
| 67 | # are insufficiently precise to distinguish things like |
| 68 | # libc-2.0.6 and libc-2.0.7. |
| 69 | if test -L /lib/libc.so.6; then |
| 70 | libc=`ls -l /lib/libc.so.6 | awk '{print $NF}'` |
| 71 | libc=/lib/$libc |
| 72 | fi |
| 73 | |
| 74 | # Configure may fail to find lstat() since it's a static/inline |
| 75 | # function in <sys/stat.h>. |
| 76 | d_lstat=define |
| 77 | |
| 78 | # malloc wrap works |
| 79 | case "$usemallocwrap" in |
| 80 | '') usemallocwrap='define' ;; |
| 81 | esac |
| 82 | |
| 83 | # The system malloc() is about as fast and as frugal as perl's. |
| 84 | # Since the system malloc() has been the default since at least |
| 85 | # 5.001, we might as well leave it that way. --AD 10 Jan 2002 |
| 86 | case "$usemymalloc" in |
| 87 | '') usemymalloc='n' ;; |
| 88 | esac |
| 89 | |
| 90 | # Check if we're about to use Intel's ICC compiler |
| 91 | case "`${cc:-cc} -V 2>&1`" in |
| 92 | *"Intel(R) C++ Compiler"*|*"Intel(R) C Compiler"*) |
| 93 | # record the version, formats: |
| 94 | # icc (ICC) 10.1 20080801 |
| 95 | # icpc (ICC) 10.1 20080801 |
| 96 | # followed by a copyright on the second line |
| 97 | ccversion=`${cc:-cc} --version | sed -n -e 's/^icp\?c \((ICC) \)\?//p'` |
| 98 | # This is needed for Configure's prototype checks to work correctly |
| 99 | # The -mp flag is needed to pass various floating point related tests |
| 100 | # The -no-gcc flag is needed otherwise, icc pretends (poorly) to be gcc |
| 101 | ccflags="-we147 -mp -no-gcc $ccflags" |
| 102 | # Prevent relocation errors on 64bits arch |
| 103 | case "`uname -m`" in |
| 104 | *ia64*|*x86_64*) |
| 105 | cccdlflags='-fPIC' |
| 106 | ;; |
| 107 | esac |
| 108 | # If we're using ICC, we usually want the best performance |
| 109 | case "$optimize" in |
| 110 | '') optimize='-O3' ;; |
| 111 | esac |
| 112 | ;; |
| 113 | *" Sun "*"C"*) |
| 114 | # Sun's C compiler, which might have a 'tag' name between |
| 115 | # 'Sun' and the 'C': Examples: |
| 116 | # cc: Sun C 5.9 Linux_i386 Patch 124871-01 2007/07/31 |
| 117 | # cc: Sun Ceres C 5.10 Linux_i386 2008/07/10 |
| 118 | test "$optimize" || optimize='-xO2' |
| 119 | cccdlflags='-KPIC' |
| 120 | lddlflags='-G -Bdynamic' |
| 121 | # Sun C doesn't support gcc attributes, but, in many cases, doesn't |
| 122 | # complain either. Not all cases, though. |
| 123 | d_attribute_format='undef' |
| 124 | d_attribute_malloc='undef' |
| 125 | d_attribute_nonnull='undef' |
| 126 | d_attribute_noreturn='undef' |
| 127 | d_attribute_pure='undef' |
| 128 | d_attribute_unused='undef' |
| 129 | d_attribute_warn_unused_result='undef' |
| 130 | ;; |
| 131 | esac |
| 132 | |
| 133 | case "$optimize" in |
| 134 | # use -O2 by default ; -O3 doesn't seem to bring significant benefits with gcc |
| 135 | '') |
| 136 | optimize='-O2' |
| 137 | case "`uname -m`" in |
| 138 | ppc*) |
| 139 | # on ppc, it seems that gcc (at least gcc 3.3.2) isn't happy |
| 140 | # with -O2 ; so downgrade to -O1. |
| 141 | optimize='-O1' |
| 142 | ;; |
| 143 | ia64*) |
| 144 | # This architecture has had various problems with gcc's |
| 145 | # in the 3.2, 3.3, and 3.4 releases when optimized to -O2. See |
| 146 | # RT #37156 for a discussion of the problem. |
| 147 | case "`${cc:-gcc} -v 2>&1`" in |
| 148 | *"version 3.2"*|*"version 3.3"*|*"version 3.4"*) |
| 149 | ccflags="-fno-delete-null-pointer-checks $ccflags" |
| 150 | ;; |
| 151 | esac |
| 152 | ;; |
| 153 | esac |
| 154 | ;; |
| 155 | esac |
| 156 | |
| 157 | # Ubuntu 11.04 (and later, presumably) doesn't keep most libraries |
| 158 | # (such as -lm) in /lib or /usr/lib. So we have to ask gcc to tell us |
| 159 | # where to look. We don't want gcc's own libraries, however, so we |
| 160 | # filter those out. |
| 161 | # This could be conditional on Unbuntu, but other distributions may |
| 162 | # follow suit, and this scheme seems to work even on rather old gcc's. |
| 163 | # This unconditionally uses gcc because even if the user is using another |
| 164 | # compiler, we still need to find the math library and friends, and I don't |
| 165 | # know how other compilers will cope with that situation. |
| 166 | # Morever, if the user has their own gcc earlier in $PATH than the system gcc, |
| 167 | # we don't want its libraries. So we try to prefer the system gcc |
| 168 | # Still, as an escape hatch, allow Configure command line overrides to |
| 169 | # plibpth to bypass this check. |
| 170 | if [ -x /usr/bin/gcc ] ; then |
| 171 | gcc=/usr/bin/gcc |
| 172 | else |
| 173 | gcc=gcc |
| 174 | fi |
| 175 | |
| 176 | case "$plibpth" in |
| 177 | '') plibpth=`LANG=C LC_ALL=C $gcc -print-search-dirs | grep libraries | |
| 178 | cut -f2- -d= | tr ':' $trnl | grep -v 'gcc' | sed -e 's:/$::'` |
| 179 | set X $plibpth # Collapse all entries on one line |
| 180 | shift |
| 181 | plibpth="$*" |
| 182 | ;; |
| 183 | esac |
| 184 | |
| 185 | # Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com> |
| 186 | # for this test. |
| 187 | cat >try.c <<'EOM' |
| 188 | /* Test for whether ELF binaries are produced */ |
| 189 | #include <fcntl.h> |
| 190 | #include <stdlib.h> |
| 191 | #include <unistd.h> |
| 192 | main() { |
| 193 | char buffer[4]; |
| 194 | int i=open("a.out",O_RDONLY); |
| 195 | if(i==-1) |
| 196 | exit(1); /* fail */ |
| 197 | if(read(i,&buffer[0],4)<4) |
| 198 | exit(1); /* fail */ |
| 199 | if(buffer[0] != 127 || buffer[1] != 'E' || |
| 200 | buffer[2] != 'L' || buffer[3] != 'F') |
| 201 | exit(1); /* fail */ |
| 202 | exit(0); /* succeed (yes, it's ELF) */ |
| 203 | } |
| 204 | EOM |
| 205 | if ${cc:-gcc} try.c >/dev/null 2>&1 && $run ./a.out; then |
| 206 | cat <<'EOM' >&4 |
| 207 | |
| 208 | You appear to have ELF support. I'll try to use it for dynamic loading. |
| 209 | If dynamic loading doesn't work, read hints/linux.sh for further information. |
| 210 | EOM |
| 211 | |
| 212 | else |
| 213 | cat <<'EOM' >&4 |
| 214 | |
| 215 | You don't have an ELF gcc. I will use dld if possible. If you are |
| 216 | using a version of DLD earlier than 3.2.6, or don't have it at all, you |
| 217 | should probably upgrade. If you are forced to use 3.2.4, you should |
| 218 | uncomment a couple of lines in hints/linux.sh and restart Configure so |
| 219 | that shared libraries will be disallowed. |
| 220 | |
| 221 | EOM |
| 222 | lddlflags="-r $lddlflags" |
| 223 | # These empty values are so that Configure doesn't put in the |
| 224 | # Linux ELF values. |
| 225 | ccdlflags=' ' |
| 226 | cccdlflags=' ' |
| 227 | ccflags="-DOVR_DBL_DIG=14 $ccflags" |
| 228 | so='sa' |
| 229 | dlext='o' |
| 230 | nm_so_opt=' ' |
| 231 | ## If you are using DLD 3.2.4 which does not support shared libs, |
| 232 | ## uncomment the next two lines: |
| 233 | #ldflags="-static" |
| 234 | #so='none' |
| 235 | |
| 236 | # In addition, on some systems there is a problem with perl and NDBM |
| 237 | # which causes AnyDBM and NDBM_File to lock up. This is evidenced |
| 238 | # in the tests as AnyDBM just freezing. Apparently, this only |
| 239 | # happens on a.out systems, so we disable NDBM for all a.out linux |
| 240 | # systems. If someone can suggest a more robust test |
| 241 | # that would be appreciated. |
| 242 | # |
| 243 | # More info: |
| 244 | # Date: Wed, 7 Feb 1996 03:21:04 +0900 |
| 245 | # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp> |
| 246 | # |
| 247 | # I tried compiling with DBM support and sure enough things locked up |
| 248 | # just as advertised. Checking into it, I found that the lockup was |
| 249 | # during the call to dbm_open. Not *in* dbm_open -- but between the call |
| 250 | # to and the jump into. |
| 251 | # |
| 252 | # To make a long story short, making sure that the *.a and *.sa pairs of |
| 253 | # /usr/lib/lib{m,db,gdbm}.{a,sa} |
| 254 | # were perfectly in sync took care of it. |
| 255 | # |
| 256 | # This will generate a harmless Whoa There! message |
| 257 | case "$d_dbm_open" in |
| 258 | '') cat <<'EOM' >&4 |
| 259 | |
| 260 | Disabling ndbm. This will generate a Whoa There message in Configure. |
| 261 | Read hints/linux.sh for further information. |
| 262 | EOM |
| 263 | # You can override this with Configure -Dd_dbm_open |
| 264 | d_dbm_open=undef |
| 265 | ;; |
| 266 | esac |
| 267 | fi |
| 268 | |
| 269 | rm -f try.c a.out |
| 270 | |
| 271 | if /bin/sh -c exit; then |
| 272 | echo '' |
| 273 | echo 'You appear to have a working bash. Good.' |
| 274 | else |
| 275 | cat << 'EOM' >&4 |
| 276 | |
| 277 | *********************** Warning! ********************* |
| 278 | It would appear you have a defective bash shell installed. This is likely to |
| 279 | give you a failure of op/exec test #5 during the test phase of the build, |
| 280 | Upgrading to a recent version (1.14.4 or later) should fix the problem. |
| 281 | ****************************************************** |
| 282 | EOM |
| 283 | |
| 284 | fi |
| 285 | |
| 286 | # On SPARClinux, |
| 287 | # The following csh consistently coredumped in the test directory |
| 288 | # "/home/mikedlr/perl5.003_94/t", though not most other directories. |
| 289 | |
| 290 | #Name : csh Distribution: Red Hat Linux (Rembrandt) |
| 291 | #Version : 5.2.6 Vendor: Red Hat Software |
| 292 | #Release : 3 Build Date: Fri May 24 19:42:14 1996 |
| 293 | #Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com |
| 294 | #Group : Shells Source RPM: csh-5.2.6-3.src.rpm |
| 295 | #Size : 184417 |
| 296 | #Description : BSD c-shell |
| 297 | |
| 298 | # For this reason I suggest using the much bug-fixed tcsh for globbing |
| 299 | # where available. |
| 300 | |
| 301 | # November 2001: That warning's pretty old now and probably not so |
| 302 | # relevant, especially since perl now uses File::Glob for globbing. |
| 303 | # We'll still look for tcsh, but tone down the warnings. |
| 304 | # Andy Dougherty, Nov. 6, 2001 |
| 305 | if $csh -c 'echo $version' >/dev/null 2>&1; then |
| 306 | echo 'Your csh is really tcsh. Good.' |
| 307 | else |
| 308 | if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then |
| 309 | echo "Found tcsh. I'll use it for globbing." |
| 310 | # We can't change Configure's setting of $csh, due to the way |
| 311 | # Configure handles $d_portable and commands found in $loclist. |
| 312 | # We can set the value for CSH in config.h by setting full_csh. |
| 313 | full_csh=$xxx |
| 314 | elif [ -f "$csh" ]; then |
| 315 | echo "Couldn't find tcsh. Csh-based globbing might be broken." |
| 316 | fi |
| 317 | fi |
| 318 | |
| 319 | # Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu> |
| 320 | # Message-Id: <33EF1634.B36B6500@pobox.com> |
| 321 | # |
| 322 | # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need |
| 323 | # special flags passed in order for dynamic loading to work. |
| 324 | # instead of the recommended: |
| 325 | # |
| 326 | # ccdlflags='-rdynamic' |
| 327 | # |
| 328 | # it should be: |
| 329 | # ccdlflags='-Wl,-E' |
| 330 | # |
| 331 | # So if your DR2 (DR3 came out summer 1998, consider upgrading) |
| 332 | # has problems with dynamic loading, uncomment the |
| 333 | # following three lines, make distclean, and re-Configure: |
| 334 | #case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in |
| 335 | #'osfmach3ppc') ccdlflags='-Wl,-E' ;; |
| 336 | #esac |
| 337 | |
| 338 | case "`uname -m`" in |
| 339 | sparc*) |
| 340 | case "$cccdlflags" in |
| 341 | *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; |
| 342 | *-fPIC*) ;; |
| 343 | *) cccdlflags="$cccdlflags -fPIC" ;; |
| 344 | esac |
| 345 | ;; |
| 346 | esac |
| 347 | |
| 348 | # SuSE8.2 has /usr/lib/libndbm* which are ld scripts rather than |
| 349 | # true libraries. The scripts cause binding against static |
| 350 | # version of -lgdbm which is a bad idea. So if we have 'nm' |
| 351 | # make sure it can read the file |
| 352 | # NI-S 2003/08/07 |
| 353 | if [ -r /usr/lib/libndbm.so -a -x /usr/bin/nm ] ; then |
| 354 | if /usr/bin/nm /usr/lib/libndbm.so >/dev/null 2>&1 ; then |
| 355 | echo 'Your shared -lndbm seems to be a real library.' |
| 356 | else |
| 357 | echo 'Your shared -lndbm is not a real library.' |
| 358 | set `echo X "$libswanted "| sed -e 's/ ndbm / /'` |
| 359 | shift |
| 360 | libswanted="$*" |
| 361 | fi |
| 362 | fi |
| 363 | |
| 364 | # Linux on Synology. |
| 365 | if [ -f /etc/synoinfo.conf -a -d /usr/syno ]; then |
| 366 | # Tested on Synology DS213 and DS413 |
| 367 | # OS version info in /etc.defaults/VERSION |
| 368 | # http://forum.synology.com/wiki/index.php/What_kind_of_CPU_does_my_NAS_have |
| 369 | # Synology DS213 running DSM 4.3-3810-0 (2013-11-06) |
| 370 | # CPU model Marvell Kirkwood mv6282 ARMv5te |
| 371 | # Linux 2.6.32.12 #3810 Wed Nov 6 05:13:41 CST 2013 armv5tel GNU/Linux |
| 372 | # Synology DS413 running DSM 4.3-3810-0 (2013-11-06) |
| 373 | # CPU model Freescale QorIQ P1022 ppc (e500v2) |
| 374 | # linux 2.6.32.12 #3810 ppc GNU/Linux |
| 375 | # All development stuff installed with ipkg is in /opt |
| 376 | if [ "$LANG" = "" -o "$LANG" = "C" ]; then |
| 377 | echo 'Your LANG is safe' |
| 378 | else |
| 379 | echo 'Please set $LANG to "C". All other $LANG settings will cause havoc' >&4 |
| 380 | LANG=C |
| 381 | fi |
| 382 | echo 'Setting up to use /opt/*' >&4 |
| 383 | locincpth="/opt/include $locincpth" |
| 384 | libpth="/opt/lib $libpth" |
| 385 | libspth="/opt/lib $libspth" |
| 386 | loclibpth="/opt/lib $loclibpth" |
| 387 | # POSIX will not link without the pthread lib |
| 388 | libswanted="$libswanted pthread" |
| 389 | echo "$libswanted" >&4 |
| 390 | fi |
| 391 | |
| 392 | # This script UU/usethreads.cbu will get 'called-back' by Configure |
| 393 | # after it has prompted the user for whether to use threads. |
| 394 | cat > UU/usethreads.cbu <<'EOCBU' |
| 395 | case "$usethreads" in |
| 396 | $define|true|[yY]*) |
| 397 | ccflags="-D_REENTRANT -D_GNU_SOURCE $ccflags" |
| 398 | if echo $libswanted | grep -v pthread >/dev/null |
| 399 | then |
| 400 | set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` |
| 401 | shift |
| 402 | libswanted="$*" |
| 403 | fi |
| 404 | |
| 405 | # Somehow at least in Debian 2.2 these manage to escape |
| 406 | # the #define forest of <features.h> and <time.h> so that |
| 407 | # the hasproto macro of Configure doesn't see these protos, |
| 408 | # even with the -D_GNU_SOURCE. |
| 409 | |
| 410 | d_asctime_r_proto="$define" |
| 411 | d_crypt_r_proto="$define" |
| 412 | d_ctime_r_proto="$define" |
| 413 | d_gmtime_r_proto="$define" |
| 414 | d_localtime_r_proto="$define" |
| 415 | d_random_r_proto="$define" |
| 416 | |
| 417 | ;; |
| 418 | esac |
| 419 | EOCBU |
| 420 | |
| 421 | cat > UU/uselargefiles.cbu <<'EOCBU' |
| 422 | # This script UU/uselargefiles.cbu will get 'called-back' by Configure |
| 423 | # after it has prompted the user for whether to use large files. |
| 424 | case "$uselargefiles" in |
| 425 | ''|$define|true|[yY]*) |
| 426 | # Keep this in the left margin. |
| 427 | ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" |
| 428 | |
| 429 | ccflags="$ccflags $ccflags_uselargefiles" |
| 430 | ;; |
| 431 | esac |
| 432 | EOCBU |
| 433 | |
| 434 | # Purify fails to link Perl if a "-lc" is passed into its linker |
| 435 | # due to duplicate symbols. |
| 436 | case "$PURIFY" in |
| 437 | $define|true|[yY]*) |
| 438 | set `echo X "$libswanted "| sed -e 's/ c / /'` |
| 439 | shift |
| 440 | libswanted="$*" |
| 441 | ;; |
| 442 | esac |
| 443 | |
| 444 | # If using g++, the Configure scan for dlopen() and (especially) |
| 445 | # dlerror() might fail, easier just to forcibly hint them in. |
| 446 | case "$cc" in |
| 447 | *g++*) |
| 448 | d_dlopen='define' |
| 449 | d_dlerror='define' |
| 450 | ;; |
| 451 | esac |
| 452 | |
| 453 | # Under some circumstances libdb can get built in such a way as to |
| 454 | # need pthread explicitly linked. |
| 455 | |
| 456 | libdb_needs_pthread="N" |
| 457 | |
| 458 | if echo " $libswanted " | grep -v " pthread " >/dev/null |
| 459 | then |
| 460 | if echo " $libswanted " | grep " db " >/dev/null |
| 461 | then |
| 462 | for DBDIR in $glibpth |
| 463 | do |
| 464 | DBLIB="$DBDIR/libdb.so" |
| 465 | if [ -f $DBLIB ] |
| 466 | then |
| 467 | if nm -u $DBLIB | grep pthread >/dev/null |
| 468 | then |
| 469 | if ldd $DBLIB | grep pthread >/dev/null |
| 470 | then |
| 471 | libdb_needs_pthread="N" |
| 472 | else |
| 473 | libdb_needs_pthread="Y" |
| 474 | fi |
| 475 | fi |
| 476 | fi |
| 477 | done |
| 478 | fi |
| 479 | fi |
| 480 | |
| 481 | case "$libdb_needs_pthread" in |
| 482 | "Y") |
| 483 | libswanted="$libswanted pthread" |
| 484 | ;; |
| 485 | esac |