289 lines
9.5 KiB
Bash
289 lines
9.5 KiB
Bash
# hints/linux.sh
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# Original version by rsanders
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# Additional support by Kenneth Albanowski <kjahds@kjahds.com>
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#
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# ELF support by H.J. Lu <hjl@nynexst.com>
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# Additional info from Nigel Head <nhead@ESOC.bitnet>
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# and Kenneth Albanowski <kjahds@kjahds.com>
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#
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# Consolidated by Andy Dougherty <doughera@lafcol.lafayette.edu>
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#
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# Updated Thu Feb 8 11:56:10 EST 1996
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# Updated Thu May 30 10:50:22 EDT 1996 by <doughera@lafcol.lafayette.edu>
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# Updated Fri Jun 21 11:07:54 EDT 1996
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# NDBM support for ELF renabled by <kjahds@kjahds.com>
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# No version of Linux supports setuid scripts.
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d_suidsafe='undef'
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# Debian and Red Hat, and perhaps other vendors, provide both runtime and
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# development packages for some libraries. The runtime packages contain shared
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# libraries with version information in their names (e.g., libgdbm.so.1.7.3);
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# the development packages supplement this with versionless shared libraries
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# (e.g., libgdbm.so).
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#
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# If you want to link against such a library, you must install the development
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# version of the package.
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#
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# These packages use a -dev naming convention in both Debian and Red Hat:
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# libgdbmg1 (non-development version of GNU libc 2-linked GDBM library)
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# libgdbmg1-dev (development version of GNU libc 2-linked GDBM library)
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# So make sure that for any libraries you wish to link Perl with under
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# Debian or Red Hat you have the -dev packages installed.
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#
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# Some operating systems (e.g., Solaris 2.6) will link to a versioned shared
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# library implicitly. For example, on Solaris, `ld foo.o -lgdbm' will find an
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# appropriate version of libgdbm, if one is available; Linux, however, doesn't
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# do the implicit mapping.
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ignore_versioned_solibs='y'
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# perl goes into the /usr tree. See the Filesystem Standard
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# available via anonymous FTP at tsx-11.mit.edu in
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# /pub/linux/docs/linux-standards/fsstnd.
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# Allow a command line override, e.g. Configure -Dprefix=/foo/bar
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#
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# Addendum for 5.005_57 and beyond:
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#
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# However, most Linux users probably already have a /usr/bin/perl.
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# We can't know whether the current user is intending to *replace*
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# that /usr/bin/perl or whether the user is intending to install
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# a *different* installation.
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#
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# Here is what we used to do:
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# Allow a command line override, e.g. Configure -Dprefix=/foo/bar
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# case "$prefix" in
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# '') prefix='/usr' ;;
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# esac
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#
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# For now, let's assume that most Linux users get their /usr/bin/perl
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# from some packaging system, so that those compiling from source are
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# probably the more experimental folks and hence probably aren't
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# intending to replace /usr/bin/perl (at least just yet).
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# This change makes linux consistent with most other unix platforms
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# in having a default of prefix=/usr/local.
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# These notes can probably safely be removed in 5.005_50 and beyond.
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#
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# 9 April 1999 Andy Dougherty <doughera@lafayette.edu>
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#
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# BSD compatability library no longer needed
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# 'kaffe' has a /usr/lib/libnet.so which is not at all relevent for perl.
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set `echo X "$libswanted "| sed -e 's/ bsd / /' -e 's/ net / /'`
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shift
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libswanted="$*"
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# If you have glibc, then report the version for ./myconfig bug reporting.
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# (Configure doesn't need to know the specific version since it just uses
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# gcc to load the library for all tests.)
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# Is this sufficiently robust for libc5 systems as well as
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# glibc-2.1.x systems?
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# We don't use __GLIBC__ and __GLIBC_MINOR__ because they
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# are insufficiently precise to distinguish things like
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# libc-2.0.6 and libc-2.0.7.
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if test -L /lib/libc.so.6; then
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libc=`ls -l /lib/libc.so.6 | awk '{print $NF}'`
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libc=/lib/$libc
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fi
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# Configure may fail to find lstat() since it's a static/inline
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# function in <sys/stat.h>.
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d_lstat=define
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# Explanation?
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case "$usemymalloc" in
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'') usemymalloc='n' ;;
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esac
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case "$optimize" in
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'') optimize='-O2' ;;
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esac
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# Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com>
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# for this test.
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cat >try.c <<'EOM'
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/* Test for whether ELF binaries are produced */
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#include <fcntl.h>
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#include <stdlib.h>
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main() {
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char buffer[4];
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int i=open("a.out",O_RDONLY);
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if(i==-1)
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exit(1); /* fail */
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if(read(i,&buffer[0],4)<4)
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exit(1); /* fail */
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if(buffer[0] != 127 || buffer[1] != 'E' ||
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buffer[2] != 'L' || buffer[3] != 'F')
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exit(1); /* fail */
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exit(0); /* succeed (yes, it's ELF) */
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}
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EOM
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if ${cc:-gcc} try.c >/dev/null 2>&1 && ./a.out; then
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cat <<'EOM' >&4
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You appear to have ELF support. I'll try to use it for dynamic loading.
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If dynamic loading doesn't work, read hints/linux.sh for further information.
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EOM
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#For RedHat Linux 3.0.3, you may need to fetch
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# ftp://ftp.redhat.com/pub/redhat-3.0.3/i386/updates/RPMS/ld.so-1.7.14-3.i386.rpm
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#
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else
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cat <<'EOM' >&4
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You don't have an ELF gcc. I will use dld if possible. If you are
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using a version of DLD earlier than 3.2.6, or don't have it at all, you
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should probably upgrade. If you are forced to use 3.2.4, you should
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uncomment a couple of lines in hints/linux.sh and restart Configure so
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that shared libraries will be disallowed.
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EOM
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lddlflags="-r $lddlflags"
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# These empty values are so that Configure doesn't put in the
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# Linux ELF values.
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ccdlflags=' '
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cccdlflags=' '
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ccflags="-DOVR_DBL_DIG=14 $ccflags"
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so='sa'
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dlext='o'
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nm_so_opt=' '
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## If you are using DLD 3.2.4 which does not support shared libs,
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## uncomment the next two lines:
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#ldflags="-static"
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#so='none'
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# In addition, on some systems there is a problem with perl and NDBM
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# which causes AnyDBM and NDBM_File to lock up. This is evidenced
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# in the tests as AnyDBM just freezing. Apparently, this only
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# happens on a.out systems, so we disable NDBM for all a.out linux
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# systems. If someone can suggest a more robust test
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# that would be appreciated.
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#
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# More info:
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# Date: Wed, 7 Feb 1996 03:21:04 +0900
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# From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp>
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#
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# I tried compiling with DBM support and sure enough things locked up
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# just as advertised. Checking into it, I found that the lockup was
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# during the call to dbm_open. Not *in* dbm_open -- but between the call
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# to and the jump into.
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#
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# To make a long story short, making sure that the *.a and *.sa pairs of
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# /usr/lib/lib{m,db,gdbm}.{a,sa}
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# were perfectly in sync took care of it.
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#
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# This will generate a harmless Whoa There! message
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case "$d_dbm_open" in
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'') cat <<'EOM' >&4
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Disabling ndbm. This will generate a Whoa There message in Configure.
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Read hints/linux.sh for further information.
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EOM
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# You can override this with Configure -Dd_dbm_open
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d_dbm_open=undef
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;;
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esac
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fi
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rm -f try.c a.out
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if /bin/bash -c exit; then
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echo ''
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echo 'You appear to have a working bash. Good.'
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else
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cat << 'EOM' >&4
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*********************** Warning! *********************
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It would appear you have a defective bash shell installed. This is likely to
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give you a failure of op/exec test #5 during the test phase of the build,
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Upgrading to a recent version (1.14.4 or later) should fix the problem.
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******************************************************
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EOM
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fi
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# On SPARClinux,
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# The following csh consistently coredumped in the test directory
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# "/home/mikedlr/perl5.003_94/t", though not most other directories.
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#Name : csh Distribution: Red Hat Linux (Rembrandt)
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#Version : 5.2.6 Vendor: Red Hat Software
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#Release : 3 Build Date: Fri May 24 19:42:14 1996
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#Install date: Thu Jul 11 16:20:14 1996 Build Host: itchy.redhat.com
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#Group : Shells Source RPM: csh-5.2.6-3.src.rpm
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#Size : 184417
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#Description : BSD c-shell
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# For this reason I suggest using the much bug-fixed tcsh for globbing
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# where available.
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if [ ! "`csh -c 'echo $version' 2>/dev/null`" ]
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then
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echo 'Real csh found (might break); looking for tcsh ...'
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# Use ./UU/loc to find tcsh. (We no longer run in the hints/ directory)
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if xxx=`./UU/loc tcsh blurfl $pth`; $test -f "$xxx"; then
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echo "Found tcsh. I'll use it for globbing."
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# We can't change Configure's setting of $csh, due to the way
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# Configure handles $d_portable and commands found in $loclist.
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# We can set the value for CSH in config.h by setting full_csh.
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full_csh=$xxx
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else
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echo "Couldn't find tcsh. BEWARE: GLOBBING MIGHT BE BROKEN."
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fi
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else
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echo 'Your csh is really tcsh. Good.'
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fi
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# Shimpei Yamashita <shimpei@socrates.patnet.caltech.edu>
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# Message-Id: <33EF1634.B36B6500@pobox.com>
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#
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# The DR2 of MkLinux (osname=linux,archname=ppc-linux) may need
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# special flags passed in order for dynamic loading to work.
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# instead of the recommended:
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#
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# ccdlflags='-rdynamic'
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#
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# it should be:
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# ccdlflags='-Wl,-E'
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#
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# So if your DR2 (DR3 came out summer 1998, consider upgrading)
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# has problems with dynamic loading, uncomment the
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# following three lines, make distclean, and re-Configure:
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#case "`uname -r | sed 's/^[0-9.-]*//'``arch`" in
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#'osfmach3ppc') ccdlflags='-Wl,-E' ;;
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#esac
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case "`uname -r`" in
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sparc-linux)
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case "$cccdlflags" in
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*-fpic*) cccdlflags="`echo $cccdlflags|sed 's/-fpic/-fPIC/'`" ;;
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*) cccdlflags="$cccdlflags -fPIC" ;;
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esac
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;;
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esac
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# This script UU/usethreads.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to use threads.
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cat > UU/usethreads.cbu <<'EOCBU'
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case "$usethreads" in
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$define|true|[yY]*)
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ccflags="-D_REENTRANT $ccflags"
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set `echo X "$libswanted "| sed -e 's/ c / pthread c /'`
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shift
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libswanted="$*"
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;;
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esac
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EOCBU
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cat > UU/uselargefiles.cbu <<'EOCBU'
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# This script UU/uselargefiles.cbu will get 'called-back' by Configure
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# after it has prompted the user for whether to use large files.
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case "$uselargefiles" in
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''|$define|true|[yY]*)
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ccflags="$ccflags -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
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;;
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esac
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EOCBU
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