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authorAaron Crane <arc@cpan.org>2016-11-11 11:20:14 +0100
committerAaron Crane <arc@cpan.org>2016-11-11 11:20:14 +0100
commit5c5db62f010163c7c8a00f5b4aab243aacf62342 (patch)
tree5cd566a3c6ad9782f4b945adcc8a0d4631c3bd37 /hints/linux.sh
parentcc2b46b563e1a9147700b04d0d2e529ae63e2e12 (diff)
downloadperl-5c5db62f010163c7c8a00f5b4aab243aacf62342.tar.gz
Drop support for Linux a.out
Linux has used ELF for over twenty years.
Diffstat (limited to 'hints/linux.sh')
-rw-r--r--hints/linux.sh86
1 files changed, 0 insertions, 86 deletions
diff --git a/hints/linux.sh b/hints/linux.sh
index fb5a46eece..3f38ea07f1 100644
--- a/hints/linux.sh
+++ b/hints/linux.sh
@@ -221,92 +221,6 @@ case "$libc" in
;;
esac
-# Are we using ELF? Thanks to Kenneth Albanowski <kjahds@kjahds.com>
-# for this test.
-cat >try.c <<'EOM'
-/* Test for whether ELF binaries are produced */
-#include <fcntl.h>
-#include <stdlib.h>
-#include <unistd.h>
-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} $ccflags $ldflags 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' >&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
-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.
-
-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 $ccflags"
- so='sa'
- dlext='o'
- nm_so_opt=' '
- ## If you are using DLD 3.2.4 which does not support shared libs,
- ## uncomment the next two lines:
- #ldflags="-static"
- #so='none'
-
- # In addition, on some systems there is a problem with perl and NDBM
- # which causes AnyDBM and NDBM_File to lock up. This is evidenced
- # in the tests as AnyDBM just freezing. Apparently, this only
- # happens on a.out systems, so we disable NDBM for all a.out linux
- # systems. If someone can suggest a more robust test
- # that would be appreciated.
- #
- # More info:
- # Date: Wed, 7 Feb 1996 03:21:04 +0900
- # From: Jeffrey Friedl <jfriedl@nff.ncl.omron.co.jp>
- #
- # I tried compiling with DBM support and sure enough things locked up
- # just as advertised. Checking into it, I found that the lockup was
- # during the call to dbm_open. Not *in* dbm_open -- but between the call
- # to and the jump into.
- #
- # To make a long story short, making sure that the *.a and *.sa pairs of
- # /usr/lib/lib{m,db,gdbm}.{a,sa}
- # were perfectly in sync took care of it.
- #
- # This will generate a harmless Whoa There! message
- case "$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 ${sh:-/bin/sh} -c exit; then
echo ''
echo 'You appear to have a working bash. Good.'