From b7a204175abb9441225e42d993ad40f9ea688652 Mon Sep 17 00:00:00 2001
From: Jarkko Hietaniemi <jhi@iki.fi>
Date: Tue, 13 Mar 2001 14:22:45 +0000
Subject: [PATCH] =?utf8?q?Workaround=20for=20the=20buggy=20("internal=20co?=
 =?utf8?q?mpiler=20error")=20AIX=20C=20compiler=205.0.1.0:=20skip=20the=20?=
 =?utf8?q?optimization=20for=20regcomp.c=20(and=20ext/re/re=5Fcomp.c).=20?=
 =?utf8?q?=20The=20MakeMaker=20dark=20magic=20courtesy=20of=20Andreas=20K?=
 =?utf8?q?=C3=B6nig.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

p4raw-id: //depot/perl@9124
---
 ext/re/Makefile.PL | 19 +++++++++++++++++++
 hints/aix.sh       | 21 +++++++++++++++++++--
 2 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/ext/re/Makefile.PL b/ext/re/Makefile.PL
index b8d25bd..537704c 100644
--- a/ext/re/Makefile.PL
+++ b/ext/re/Makefile.PL
@@ -39,3 +39,22 @@ re_exec\$(OBJ_EXT) : re_exec.c
 
 EOF
 }
+
+sub MY::c_o {
+    my($self) = @_;
+    package MY; # so that "SUPER" works right
+    my $inh = $self->SUPER::c_o(@_);
+    use Config;
+    if ($Config{osname} eq 'aix' && $Config{ccversion} eq '5.0.1.0') {
+	# Known buggy optimizer.
+	my $cccmd = $self->const_cccmd;
+	$cccmd =~ s/^CCCMD\s*=\s*//;
+	$cccmd =~ s/\s\$\(OPTIMIZE\)\s/ /;
+	$inh .= qq{
+
+re_comp\$\(OBJ_EXT\): re_comp.c
+\t$cccmd \$(CCCDLFLAGS) -I\$(PERL_INC) \$(DEFINE) \$*.c
+};
+    }
+    $inh;
+}
diff --git a/hints/aix.sh b/hints/aix.sh
index b14aad0..31d189f 100644
--- a/hints/aix.sh
+++ b/hints/aix.sh
@@ -138,8 +138,25 @@ case "$cc" in
 	optimize='none'
 	;;
      4.4.0.0|4.4.0.1|4.4.0.2)
-	echo >&4 "*** This C compiler ($ccversion) is outdated."
-	echo >&4 "*** Please upgrade to at least 4.4.0.3."
+	cat >&4 <<EOF
+***
+*** This C compiler ($ccversion) is outdated.
+***
+*** Please upgrade to at least 4.4.0.3.
+***
+EOF
+	;;
+     5.0.1.0)
+	cat >&4 <<EOF
+***
+*** This C compiler ($ccversion) is known to have optimizer problems
+*** when compiling regcomp.c.
+***
+*** Disabling optimization for that file but consider upgrading
+*** your C compiler.
+***
+EOF
+regcomp_cflags='optimize='
 	;;
      esac
 esac
-- 
1.8.3.1