X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/5440bc8ef38c925fa824ae72b6c7ad2f21cbda6e..72aac62720fdd7ad8838984e8ca7cf2dedb7a776:/hints/linux.sh diff --git a/hints/linux.sh b/hints/linux.sh index 3234aea..c749f0f 100644 --- a/hints/linux.sh +++ b/hints/linux.sh @@ -6,18 +6,21 @@ # Additional info from Nigel Head # and Kenneth Albanowski # -# Consolidated by Andy Dougherty +# Consolidated by Andy Dougherty # # Updated Thu Feb 8 11:56:10 EST 1996 -# Updated Thu May 30 10:50:22 EDT 1996 by +# Updated Thu May 30 10:50:22 EDT 1996 by # Updated Fri Jun 21 11:07:54 EDT 1996 -# NDBM support for ELF renabled by +# 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); @@ -32,164 +35,206 @@ d_suidsafe='undef' # 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. -# + +# SuSE Linux can be used as cross-compilation host for Cray XT4 Catamount/Qk. +if test -d /opt/xt-pe +then + case "`${cc:-cc} -V 2>&1`" in + *catamount*) . hints/catamount.sh; return ;; + esac +fi + # Some operating systems (e.g., Solaris 2.6) will link to a versioned shared # library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an # appropriate version of libgdbm, if one is available; Linux, however, doesn't # do the implicit mapping. ignore_versioned_solibs='y' -# perl goes into the /usr tree. See the Filesystem Standard -# available via anonymous FTP at tsx-11.mit.edu in -# /pub/linux/docs/linux-standards/fsstnd. -# Allow a command line override, e.g. Configure -Dprefix=/foo/bar -# -# Addendum for 5.005_57 and beyond: -# -# However, most Linux users probably already have a /usr/bin/perl. -# We can't know whether the current user is intending to *replace* -# that /usr/bin/perl or whether the user is intending to install -# a *different* installation. -# -# Here is what we used to do: -# Allow a command line override, e.g. Configure -Dprefix=/foo/bar -# case "$prefix" in -# '') prefix='/usr' ;; -# esac -# -# For now, let's assume that most Linux users get their /usr/bin/perl -# from some packaging system, so that those compiling from source are -# probably the more experimental folks and hence probably aren't -# intending to replace /usr/bin/perl (at least just yet). -# This change makes linux consistent with most other unix platforms -# in having a default of prefix=/usr/local. -# These notes can probably safely be removed in 5.005_50 and beyond. -# -# 9 April 1999 Andy Dougherty -# - -# BSD compatability library no longer needed -# 'kaffe' has a /usr/lib/libnet.so which is not at all relevent for perl. -set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /'` +# BSD compatibility library no longer needed +# 'kaffe' has a /usr/lib/libnet.so which is not at all relevant for perl. +# bind causes issues with several reentrant functions +set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /' -e 's/ bind / /'` shift libswanted="$*" -# 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.) -# Is this sufficiently robust for libc5 systems as well as -# glibc-2.1.x systems? -# 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 +# Debian 4.0 puts ndbm in the -lgdbm_compat library. +echo $libs +if echo " $libswanted " | grep -q ' gdbm '; then + # Only add if gdbm is in libswanted. + libswanted="$libswanted gdbm_compat" fi # Configure may fail to find lstat() since it's a static/inline # function in . d_lstat=define -# Explanation? -case "$usemymalloc" in -'') usemymalloc='n' ;; +# malloc wrap works +case "$usemallocwrap" in +'') usemallocwrap='define' ;; esac -case "$optimize" in -'') optimize='-O2' ;; +# The system malloc() is about as fast and as frugal as perl's. +# Since the system malloc() has been the default since at least +# 5.001, we might as well leave it that way. --AD 10 Jan 2002 +case "$usemymalloc" in +'') usemymalloc='n' ;; esac -# Are we using ELF? Thanks to Kenneth Albanowski -# for this test. -cat >try.c <<'EOM' -/* Test for whether ELF binaries are produced */ -#include -#include -main() { - char buffer[4]; - int i=open("a.out",O_RDONLY); - if(i==-1) - exit(1); /* fail */ - if(read(i,&buffer[0],4)<4) - exit(1); /* fail */ - if(buffer[0] != 127 || buffer[1] != 'E' || - buffer[2] != 'L' || buffer[3] != 'F') - exit(1); /* fail */ - exit(0); /* succeed (yes, it's ELF) */ -} -EOM -if ${cc:-gcc} try.c >/dev/null 2>&1 && $run ./a.out; then - cat <<'EOM' >&4 +uname_minus_m="`$run uname -m 2>/dev/null`" +uname_minus_m="${uname_minus_m:-"$targetarch"}" -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 +# Check if we're about to use Intel's ICC compiler +case "`${cc:-cc} -V 2>&1`" in +*"Intel(R) C"*" Compiler"*) + # record the version, formats: + # icc (ICC) 10.1 20080801 + # icpc (ICC) 10.1 20080801 + # followed by a copyright on the second line + ccversion=`${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_minus_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 -#For RedHat Linux 3.0.3, you may need to fetch -# ftp://ftp.redhat.com/pub/redhat-3.0.3/i386/updates/RPMS/ld.so-1.7.14-3.i386.rpm -# +case "$optimize" in +# use -O2 by default ; -O3 doesn't seem to bring significant benefits with gcc +'') + optimize='-O2' + case "$uname_minus_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 +# clang also provides -print-search-dirs +elif ${cc:-cc} --version 2>/dev/null | grep -q '^clang ' ; then + gcc=${cc:-cc} else - cat <<'EOM' >&4 + gcc=gcc +fi -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 -should probably upgrade. If you are forced to use 3.2.4, you should -uncomment a couple of lines in hints/linux.sh and restart Configure so -that shared libraries will be disallowed. +case "$plibpth" in +'') plibpth=`LANG=C LC_ALL=C $gcc $ccflags $ldflags -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 -EOM - lddlflags="-r $lddlflags" - # These empty values are so that Configure doesn't put in the - # 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 +# For the musl libc, perl should #define _GNU_SOURCE. Otherwise, some +# available functions, like memem, won't be used. See the discussion in +# [perl #133760]. musl doesn't offer an easy way to identify it, but, +# at least on alpine linux, the ldd --version output contains the +# string 'musl.' +case `ldd --version 2>&1` in + musl*) ccflags="$ccflags -D_GNU_SOURCE" ;; + *) ;; +esac -rm -f try.c a.out +# libquadmath is sometimes installed as gcc internal library, +# so contrary to our usual policy of *not* looking at gcc internal +# directories we now *do* look at them, in case they contain +# the quadmath library. +# XXX This may apply to other gcc internal libraries, if such exist. +# XXX This could be at Configure level, but then the $gcc is messy. +case "$usequadmath" in +"$define") + for d in `LANG=C LC_ALL=C $gcc $ccflags $ldflags -print-search-dirs | grep libraries | cut -f2- -d= | tr ':' $trnl | grep 'gcc' | sed -e 's:/$::'` + do + case `ls $d/*libquadmath*$so* 2>/dev/null` in + $d/*libquadmath*$so*) xlibpth="$xlibpth $d" ;; + esac + done + ;; +esac -if /bin/sh -c exit; then +case "$libc" in +'') +# 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. + for p in $plibpth + do + for trylib in libc.so.6 libc.so + do + if $test -e $p/$trylib; then + libc=`ls -l $p/$trylib | awk '{print $NF}'` + if $test "X$libc" != X; then + break + fi + fi + done + if $test "X$libc" != X; then + break + fi + done + ;; +esac + +if ${sh:-/bin/sh} -c exit; then echo '' echo 'You appear to have a working bash. Good.' else @@ -219,32 +264,33 @@ fi # For this reason I suggest using the much bug-fixed tcsh for globbing # where available. -if [ ! "`csh -c 'echo $version' 2>/dev/null`" ] -then - echo 'Real csh found (might break); looking for tcsh ...' - # Use ./UU/loc to find tcsh. (We no longer run in the hints/ directory) +# 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 - else - echo "Couldn't find tcsh. BEWARE: GLOBBING MIGHT BE BROKEN." + elif [ -f "$csh" ]; then + echo "Couldn't find tcsh. Csh-based globbing might be broken." fi -else - echo 'Your csh is really tcsh. Good.' fi # Shimpei Yamashita # Message-Id: <33EF1634.B36B6500@pobox.com> -# +# # The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need # special flags passed in order for dynamic loading to work. # instead of the recommended: # # ccdlflags='-rdynamic' -# +# # it should be: # ccdlflags='-Wl,-E' # @@ -255,30 +301,102 @@ fi #'osfmach3ppc') ccdlflags='-Wl,-E' ;; #esac -case "`uname -r`" in -sparc-linux) +case "$uname_minus_m" in +sparc*) case "$cccdlflags" in *-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;; + *-fPIC*) ;; *) cccdlflags="$cccdlflags -fPIC" ;; esac ;; esac -# This script UU/usethreads.cbu will get 'called-back' by Configure +# 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 +case "$nm" in + '') ;; + *) + for p in $plibpth + do + if $test -r $p/libndbm.so; then + if $nm $p/libndbm.so >/dev/null 2>&1 ; then + echo 'Your shared -lndbm seems to be a real library.' + _libndbm_real=1 + break + fi + fi + done + if $test "X$_libndbm_real" = X; then + echo 'Your shared -lndbm is not a real library.' + set `echo X "$libswanted "| sed -e 's/ ndbm / /'` + shift + libswanted="$*" + fi + ;; +esac + +# Linux on Synology. +if [ -f /etc/synoinfo.conf -a -d /usr/syno ]; then + # Tested on Synology DS213 and DS413 + # OS version info in /etc.defaults/VERSION + # http://forum.synology.com/wiki/index.php/What_kind_of_CPU_does_my_NAS_have + # Synology DS213 running DSM 4.3-3810-0 (2013-11-06) + # CPU model Marvell Kirkwood mv6282 ARMv5te + # Linux 2.6.32.12 #3810 Wed Nov 6 05:13:41 CST 2013 armv5tel GNU/Linux + # Synology DS413 running DSM 4.3-3810-0 (2013-11-06) + # CPU model Freescale QorIQ P1022 ppc (e500v2) + # linux 2.6.32.12 #3810 ppc GNU/Linux + # All development stuff installed with ipkg is in /opt + if [ "$LANG" = "" -o "$LANG" = "C" ]; then + echo 'Your LANG is safe' + else + echo 'Please set $LANG to "C". All other $LANG settings will cause havoc' >&4 + LANG=C + fi + echo 'Setting up to use /opt/*' >&4 + locincpth="/opt/include $locincpth" + libpth="/opt/lib $libpth" + libspth="/opt/lib $libspth" + loclibpth="/opt/lib $loclibpth" + # POSIX will not link without the pthread lib + libswanted="$libswanted pthread" + echo "$libswanted" >&4 +fi + +# This script UU/usethreads.cbu will get 'called-back' by Configure # after it has prompted the user for whether to use threads. cat > UU/usethreads.cbu <<'EOCBU' case "$usethreads" in $define|true|[yY]*) - ccflags="-D_REENTRANT $ccflags" - set `echo X "$libswanted "| sed -e 's/ c / pthread c /'` - shift - libswanted="$*" + ccflags="-D_REENTRANT -D_GNU_SOURCE $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="$define" + ;; esac EOCBU cat > UU/uselargefiles.cbu <<'EOCBU' -# This script UU/uselargefiles.cbu will get 'called-back' by Configure +# This script UU/uselargefiles.cbu will get 'called-back' by Configure # after it has prompted the user for whether to use large files. case "$uselargefiles" in ''|$define|true|[yY]*) @@ -289,3 +407,56 @@ ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" ;; esac EOCBU + +# Purify fails to link Perl if a "-lc" is passed into its linker +# due to duplicate symbols. +case "$PURIFY" in +$define|true|[yY]*) + set `echo X "$libswanted "| sed -e 's/ c / /'` + shift + libswanted="$*" + ;; +esac + +# If using g++, the Configure scan for dlopen() and (especially) +# dlerror() might fail, easier just to forcibly hint them in. +case "$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:-nm} -u $DBLIB 2>/dev/null | 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