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https://bugs.gentoo.org/708744
From 6bd6308fcea3541e505651bf8e8127a4a03d22cd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
Date: Tue, 12 Nov 2019 09:19:18 +0100
Subject: [PATCH] Adapt Configure to GCC version 10
I got a notice from Jeff Law <law@redhat.com>:
Your particular package fails its testsuite. This was ultimately
tracked down to a Configure problem. The perl configure script treated
gcc-10 as gcc-1 and turned on -fpcc-struct-return. This is an ABI
changing flag and caused Perl to not be able to interact properly with
the dbm libraries on the system leading to a segfault.
His proposed patch corrected only this one instance of the version
mismatch. Reading the Configure script revealed more issues. This
patch fixes all of them I found.
Please note I do not have GCC 10 available, I tested it by faking the version
with:
--- a/Configure
+++ b/Configure
@@ -4701,7 +4701,7 @@ else
fi
$rm -f try try.*
case "$gccversion" in
-1*) cpp=`./loc gcc-cpp $cpp $pth` ;;
+1.*) cpp=`./loc gcc-cpp $cpp $pth` ;;
esac
case "$gccversion" in
'') gccosandvers='' ;;
@@ -4741,7 +4741,7 @@ esac
# gcc 3.* complain about adding -Idirectories that they already know about,
# so we will take those off from locincpth.
case "$gccversion" in
-3*)
+3.*)
echo "main(){}">try.c
for incdir in $locincpth; do
warn=`$cc $ccflags -I$incdir -c try.c 2>&1 | \
@@ -5467,13 +5467,13 @@ fi
case "$hint" in
default|recommended)
case "$gccversion" in
- 1*) dflt="$dflt -fpcc-struct-return" ;;
+ 1.*) dflt="$dflt -fpcc-struct-return" ;;
esac
case "$optimize:$DEBUGGING" in
*-g*:old) dflt="$dflt -DDEBUGGING";;
esac
case "$gccversion" in
- 2*) if $test -d /etc/conf/kconfig.d &&
+ 2.*) if $test -d /etc/conf/kconfig.d &&
$contains _POSIX_VERSION $usrinc/sys/unistd.h >/dev/null 2>&1
then
# Interactive Systems (ISC) POSIX mode.
@@ -5482,7 +5482,7 @@ default|recommended)
;;
esac
case "$gccversion" in
- 1*) ;;
+ 1.*) ;;
2.[0-8]*) ;;
?*) set strict-aliasing -fno-strict-aliasing
eval $checkccflag
@@ -5600,7 +5600,7 @@ case "$cppflags" in
;;
esac
case "$gccversion" in
-1*) cppflags="$cppflags -D__GNUC__"
+1.*) cppflags="$cppflags -D__GNUC__"
esac
case "$mips_type" in
'');;
@@ -23103,7 +23103,7 @@ fi
: add -D_FORTIFY_SOURCE if feasible and not already there
case "$gccversion" in
-[456789].*) case "$optimize$ccflags" in
+[456789].*|[1-9][0-9]*) case "$optimize$ccflags" in
*-O*) case "$ccflags$cppsymbols" in
*_FORTIFY_SOURCE=*) # Don't add it again.
echo "You seem to have -D_FORTIFY_SOURCE already, not adding it." >&4
--- a/cflags.SH
+++ b/cflags.SH
@@ -156,7 +156,7 @@ esac
case "$gccversion" in
'') ;;
-[12]*) ;; # gcc versions 1 (gasp!) and 2 are not good for this.
+[12].*) ;; # gcc versions 1 (gasp!) and 2 are not good for this.
Intel*) ;; # # Is that you, Intel C++?
#
# NOTE 1: the -std=c89 without -pedantic is a bit pointless.
--
2.25.0
|
