X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/c296029969658ed2c8d9a223d4b09026463ca970..c15f899f18827e563db510796dac34fdff0db1d8:/hints/linux.sh diff --git a/hints/linux.sh b/hints/linux.sh index b8dbc25..d0ac9fa 100644 --- a/hints/linux.sh +++ b/hints/linux.sh @@ -6,48 +6,180 @@ # Additional info from Nigel Head # and Kenneth Albanowski # -# Consolidated by Andy Dougherty +# Consolidated by Andy Dougherty # -# Last updated Tue May 30 14:25:02 EDT 1995 +# Updated Thu Feb 8 11:56:10 EST 1996 + +# Updated Thu May 30 10:50:22 EDT 1996 by + +# Updated Fri Jun 21 11:07:54 EDT 1996 +# NDBM support for ELF re-enabled by + +# No version of Linux supports setuid scripts. +d_suidsafe='undef' + +# No version of Linux needs libutil for perl. +i_libutil='undef' + +# Debian and Red Hat, and perhaps other vendors, provide both runtime and +# development packages for some libraries. The runtime packages contain shared +# libraries with version information in their names (e.g., libgdbm.so.1.7.3); +# the development packages supplement this with versionless shared libraries +# (e.g., libgdbm.so). # -# If you wish to use something other than 'gcc' for your compiler, -# you should specify it on the Configure command line. To use -# gcc-elf, for exmample, type -# ./Configure -Dcc=gcc-elf - -# perl goes into the /usr tree. See the Filesystem Standard -# available via anonymous FTP at tsx-11.mit.edu in -# /pub/linux/docs/linux-standards/fsstnd. -# Allow a command line override, e.g. Configure -Dprefix=/foo/bar -case "$prefix" in -'') prefix='/usr' ;; -esac +# If you want to link against such a library, you must install the development +# version of the package. +# +# These packages use a -dev naming convention in both Debian and Red Hat: +# libgdbmg1 (non-development version of GNU libc 2-linked GDBM library) +# libgdbmg1-dev (development version of GNU libc 2-linked GDBM library) +# So make sure that for any libraries you wish to link Perl with under +# Debian or Red Hat you have the -dev packages installed. -# Perl expects BSD style signal handling. -# gcc-2.6.3 defines _G_HAVE_BOOL to 1, but doesn't actually supply bool. -ccflags="-D__USE_BSD_SIGNAL -Dbool=char -DHAS_BOOL $ccflags" +# SuSE Linux can be used as cross-compilation host for Cray XT4 Catamount/Qk. +if test -d /opt/xt-pe +then + case "`cc -V 2>&1`" in + *catamount*) . hints/catamount.sh; return ;; + esac +fi -# The following functions are gcc built-ins, but the Configure tests -# may fail because they don't supply proper prototypes. -# This should be fixed as of 5.001f. I'd appreciate reports. -d_memcmp=define -d_memcpy=define +# Some operating systems (e.g., Solaris 2.6) will link to a versioned shared +# library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an +# appropriate version of libgdbm, if one is available; Linux, however, doesn't +# do the implicit mapping. +ignore_versioned_solibs='y' + +# BSD compatibility library no longer needed +# 'kaffe' has a /usr/lib/libnet.so which is not at all relevant for perl. +# bind causes issues with several reentrant functions +set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /' -e 's/ bind / /'` +shift +libswanted="$*" + +# Debian 4.0 puts ndbm in the -lgdbm_compat library. +libswanted="$libswanted gdbm_compat" + +# If you have glibc, then report the version for ./myconfig bug reporting. +# (Configure doesn't need to know the specific version since it just uses +# gcc to load the library for all tests.) +# We don't use __GLIBC__ and __GLIBC_MINOR__ because they +# are insufficiently precise to distinguish things like +# libc-2.0.6 and libc-2.0.7. +if test -L /lib/libc.so.6; then + libc=`ls -l /lib/libc.so.6 | awk '{print $NF}'` + libc=/lib/$libc +fi # Configure may fail to find lstat() since it's a static/inline # function in . d_lstat=define -# Explanation? -d_dosuid='define' +# malloc wrap works +case "$usemallocwrap" in +'') usemallocwrap='define' ;; +esac -# I think Configure gets this right now, but I'd appreciate reports. -malloctype='void *' +# The system malloc() is about as fast and as frugal as perl's. +# Since the system malloc() has been the default since at least +# 5.001, we might as well leave it that way. --AD 10 Jan 2002 +case "$usemymalloc" in +'') usemymalloc='n' ;; +esac -# Explanation? -usemymalloc='n' +# Check if we're about to use Intel's ICC compiler +case "`${cc:-cc} -V 2>&1`" in +*"Intel(R) C++ Compiler"*|*"Intel(R) C Compiler"*) + # record the version, formats: + # icc (ICC) 10.1 20080801 + # icpc (ICC) 10.1 20080801 + # followed by a copyright on the second line + ccversion=`${cc:-cc} --version | sed -n -e 's/^icp\?c \((ICC) \)\?//p'` + # This is needed for Configure's prototype checks to work correctly + # The -mp flag is needed to pass various floating point related tests + # The -no-gcc flag is needed otherwise, icc pretends (poorly) to be gcc + ccflags="-we147 -mp -no-gcc $ccflags" + # Prevent relocation errors on 64bits arch + case "`uname -m`" in + *ia64*|*x86_64*) + cccdlflags='-fPIC' + ;; + esac + # If we're using ICC, we usually want the best performance + case "$optimize" in + '') optimize='-O3' ;; + esac + ;; +*" Sun "*"C"*) + # Sun's C compiler, which might have a 'tag' name between + # 'Sun' and the 'C': Examples: + # cc: Sun C 5.9 Linux_i386 Patch 124871-01 2007/07/31 + # cc: Sun Ceres C 5.10 Linux_i386 2008/07/10 + test "$optimize" || optimize='-xO2' + cccdlflags='-KPIC' + lddlflags='-G -Bdynamic' + # Sun C doesn't support gcc attributes, but, in many cases, doesn't + # complain either. Not all cases, though. + d_attribute_format='undef' + d_attribute_malloc='undef' + d_attribute_nonnull='undef' + d_attribute_noreturn='undef' + d_attribute_pure='undef' + d_attribute_unused='undef' + d_attribute_warn_unused_result='undef' + ;; +esac case "$optimize" in -'') optimize='-O2' ;; +# use -O2 by default ; -O3 doesn't seem to bring significant benefits with gcc +'') + optimize='-O2' + case "`uname -m`" in + ppc*) + # on ppc, it seems that gcc (at least gcc 3.3.2) isn't happy + # with -O2 ; so downgrade to -O1. + optimize='-O1' + ;; + ia64*) + # This architecture has had various problems with gcc's + # in the 3.2, 3.3, and 3.4 releases when optimized to -O2. See + # RT #37156 for a discussion of the problem. + case "`${cc:-gcc} -v 2>&1`" in + *"version 3.2"*|*"version 3.3"*|*"version 3.4"*) + ccflags="-fno-delete-null-pointer-checks $ccflags" + ;; + esac + ;; + esac + ;; +esac + +# Ubuntu 11.04 (and later, presumably) doesn't keep most libraries +# (such as -lm) in /lib or /usr/lib. So we have to ask gcc to tell us +# where to look. We don't want gcc's own libraries, however, so we +# filter those out. +# This could be conditional on Unbuntu, but other distributions may +# follow suit, and this scheme seems to work even on rather old gcc's. +# This unconditionally uses gcc because even if the user is using another +# compiler, we still need to find the math library and friends, and I don't +# know how other compilers will cope with that situation. +# Morever, if the user has their own gcc earlier in $PATH than the system gcc, +# we don't want its libraries. So we try to prefer the system gcc +# Still, as an escape hatch, allow Configure command line overrides to +# plibpth to bypass this check. +if [ -x /usr/bin/gcc ] ; then + gcc=/usr/bin/gcc +else + gcc=gcc +fi + +case "$plibpth" in +'') plibpth=`$gcc -print-search-dirs | grep libraries | + cut -f2- -d= | tr ':' $trnl | grep -v 'gcc' | sed -e 's:/$::'` + set X $plibpth # Collapse all entries on one line + shift + plibpth="$*" + ;; esac # Are we using ELF? Thanks to Kenneth Albanowski @@ -56,6 +188,7 @@ cat >try.c <<'EOM' /* Test for whether ELF binaries are produced */ #include #include +#include main() { char buffer[4]; int i=open("a.out",O_RDONLY); @@ -69,13 +202,15 @@ main() { exit(0); /* succeed (yes, it's ELF) */ } EOM -if ${cc:-gcc} try.c >/dev/null 2>&1 && ./a.out; then - cat <<'EOM' +if ${cc:-gcc} try.c >/dev/null 2>&1 && $run ./a.out; then + cat <<'EOM' >&4 You appear to have ELF support. I'll try to use it for dynamic loading. +If dynamic loading doesn't work, read hints/linux.sh for further information. EOM + else - cat <<'EOM' + cat <<'EOM' >&4 You don't have an ELF gcc. I will use dld if possible. If you are using a version of DLD earlier than 3.2.6, or don't have it at all, you @@ -89,35 +224,251 @@ EOM # Linux ELF values. ccdlflags=' ' cccdlflags=' ' + ccflags="-DOVR_DBL_DIG=14 $ccflags" so='sa' dlext='o' + nm_so_opt=' ' ## If you are using DLD 3.2.4 which does not support shared libs, ## uncomment the next two lines: #ldflags="-static" #so='none' + + # In addition, on some systems there is a problem with perl and NDBM + # which causes AnyDBM and NDBM_File to lock up. This is evidenced + # in the tests as AnyDBM just freezing. Apparently, this only + # happens on a.out systems, so we disable NDBM for all a.out linux + # systems. If someone can suggest a more robust test + # that would be appreciated. + # + # More info: + # Date: Wed, 7 Feb 1996 03:21:04 +0900 + # From: Jeffrey Friedl + # + # I tried compiling with DBM support and sure enough things locked up + # just as advertised. Checking into it, I found that the lockup was + # during the call to dbm_open. Not *in* dbm_open -- but between the call + # to and the jump into. + # + # To make a long story short, making sure that the *.a and *.sa pairs of + # /usr/lib/lib{m,db,gdbm}.{a,sa} + # were perfectly in sync took care of it. + # + # This will generate a harmless Whoa There! message + case "$d_dbm_open" in + '') cat <<'EOM' >&4 + +Disabling ndbm. This will generate a Whoa There message in Configure. +Read hints/linux.sh for further information. +EOM + # You can override this with Configure -Dd_dbm_open + d_dbm_open=undef + ;; + esac fi rm -f try.c a.out -if /bin/bash -c exit; then - echo You appear to have a working bash. Good. +if /bin/sh -c exit; then + echo '' + echo 'You appear to have a working bash. Good.' else - cat << 'EOM' -Warning: it would appear you have a defective bash shell installed. This is -likely to give you a failure of op/exec test #5 during the test phase of the -build, Upgrading to a recent version (1.14.4 or later) should fix the -problem. + cat << 'EOM' >&4 +*********************** Warning! ********************* +It would appear you have a defective bash shell installed. This is likely to +give you a failure of op/exec test #5 during the test phase of the build, +Upgrading to a recent version (1.14.4 or later) should fix the problem. +****************************************************** EOM fi -# In addition, on some systems there is a problem with perl and NDBM, which -# causes AnyDBM and NDBM_File to lock up. This is evidenced in the tests as -# AnyDBM just freezing. Currently we disable NDBM for all linux systems. -# If someone can suggest a more robust test, that would be appreciated. -# This will generate a harmless message: -# Hmm...You had some extra variables I don't know about...I'll try to keep 'em. -# Propagating recommended variable d_dbm_open -d_dbm_open=undef +# On SPARClinux, +# The following csh consistently coredumped in the test directory +# "/home/mikedlr/perl5.003_94/t", though not most other directories. + +#Name : csh Distribution: Red Hat Linux (Rembrandt) +#Version : 5.2.6 Vendor: Red Hat Software +#Release : 3 Build Date: Fri May 24 19:42:14 1996 +#Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com +#Group : Shells Source RPM: csh-5.2.6-3.src.rpm +#Size : 184417 +#Description : BSD c-shell + +# For this reason I suggest using the much bug-fixed tcsh for globbing +# where available. + +# November 2001: That warning's pretty old now and probably not so +# relevant, especially since perl now uses File::Glob for globbing. +# We'll still look for tcsh, but tone down the warnings. +# Andy Dougherty, Nov. 6, 2001 +if $csh -c 'echo $version' >/dev/null 2>&1; then + echo 'Your csh is really tcsh. Good.' +else + if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then + echo "Found tcsh. I'll use it for globbing." + # We can't change Configure's setting of $csh, due to the way + # Configure handles $d_portable and commands found in $loclist. + # We can set the value for CSH in config.h by setting full_csh. + full_csh=$xxx + elif [ -f "$csh" ]; then + echo "Couldn't find tcsh. Csh-based globbing might be broken." + fi +fi + +# Shimpei Yamashita +# Message-Id: <33EF1634.B36B6500@pobox.com> +# +# The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need +# special flags passed in order for dynamic loading to work. +# instead of the recommended: +# +# ccdlflags='-rdynamic' +# +# it should be: +# ccdlflags='-Wl,-E' +# +# So if your DR2 (DR3 came out summer 1998, consider upgrading) +# has problems with dynamic loading, uncomment the +# following three lines, make distclean, and re-Configure: +#case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in +#'osfmach3ppc') ccdlflags='-Wl,-E' ;; +#esac + +case "`uname -m`" in +sparc*) + case "$cccdlflags" in + *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; + *-fPIC*) ;; + *) cccdlflags="$cccdlflags -fPIC" ;; + esac + ;; +esac + +# SuSE8.2 has /usr/lib/libndbm* which are ld scripts rather than +# true libraries. The scripts cause binding against static +# version of -lgdbm which is a bad idea. So if we have 'nm' +# make sure it can read the file +# NI-S 2003/08/07 +if [ -r /usr/lib/libndbm.so -a -x /usr/bin/nm ] ; then + if /usr/bin/nm /usr/lib/libndbm.so >/dev/null 2>&1 ; then + echo 'Your shared -lndbm seems to be a real library.' + else + echo 'Your shared -lndbm is not a real library.' + set `echo X "$libswanted "| sed -e 's/ ndbm / /'` + shift + libswanted="$*" + fi +fi + + +# This script UU/usethreads.cbu will get 'called-back' by Configure +# after it has prompted the user for whether to use threads. +cat > UU/usethreads.cbu <<'EOCBU' +if getconf GNU_LIBPTHREAD_VERSION | grep NPTL >/dev/null 2>/dev/null +then + threadshavepids="" +else + threadshavepids="-DTHREADS_HAVE_PIDS" +fi +case "$usethreads" in +$define|true|[yY]*) + ccflags="-D_REENTRANT -D_GNU_SOURCE $threadshavepids $ccflags" + if echo $libswanted | grep -v pthread >/dev/null + then + set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` + shift + libswanted="$*" + fi + + # Somehow at least in Debian 2.2 these manage to escape + # the #define forest of and so that + # the hasproto macro of Configure doesn't see these protos, + # even with the -D_GNU_SOURCE. + + d_asctime_r_proto="$define" + d_crypt_r_proto="$define" + d_ctime_r_proto="$define" + d_gmtime_r_proto="$define" + d_localtime_r_proto="$define" + d_random_r_proto="$define" + + ;; +esac +EOCBU + +cat > UU/uselargefiles.cbu <<'EOCBU' +# This script UU/uselargefiles.cbu will get 'called-back' by Configure +# after it has prompted the user for whether to use large files. +case "$uselargefiles" in +''|$define|true|[yY]*) +# Keep this in the left margin. +ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" + + ccflags="$ccflags $ccflags_uselargefiles" + ;; +esac +EOCBU + +# Purify fails to link Perl if a "-lc" is passed into its linker +# due to duplicate symbols. +case "$PURIFY" in +$define|true|[yY]*) + set `echo X "$libswanted "| sed -e 's/ c / /'` + shift + libswanted="$*" + ;; +esac + +# If we are using g++ we must use nm and force ourselves to use +# the /usr/lib/libc.a (resetting the libc below to an empty string +# makes Configure to look for the right one) because the symbol +# scanning tricks of Configure will crash and burn horribly. +case "$cc" in +*g++*) usenm=true + libc='' + ;; +esac +# If using g++, the Configure scan for dlopen() and (especially) +# dlerror() might fail, easier just to forcibly hint them in. +case "$cc" in +*g++*) + d_dlopen='define' + d_dlerror='define' + ;; +esac + +# Under some circumstances libdb can get built in such a way as to +# need pthread explicitly linked. + +libdb_needs_pthread="N" + +if echo " $libswanted " | grep -v " pthread " >/dev/null +then + if echo " $libswanted " | grep " db " >/dev/null + then + for DBDIR in $glibpth + do + DBLIB="$DBDIR/libdb.so" + if [ -f $DBLIB ] + then + if nm -u $DBLIB | grep pthread >/dev/null + then + if ldd $DBLIB | grep pthread >/dev/null + then + libdb_needs_pthread="N" + else + libdb_needs_pthread="Y" + fi + fi + fi + done + fi +fi + +case "$libdb_needs_pthread" in + "Y") + libswanted="$libswanted pthread" + ;; +esac