X-Git-Url: https://git.jankratochvil.net/?p=nethome.git;a=blobdiff_plain;f=bin%2Ferrs12;h=1f8ac8566ceea6e033286d4dff4e6171c9727ef7;hp=a679861588e5441ab30327f0566aa0eea637e99c;hb=6be7803d9a82fd6bbadf7df6de0ae5472038ed88;hpb=4e621b85cdc130479357d4920e4c088407fa3248

diff --git a/bin/errs12 b/bin/errs12
index a679861..1f8ac85 100755
--- a/bin/errs12
+++ b/bin/errs12
@@ -12,8 +12,13 @@ customm="-m64"
 target=
 targets=
 configure="./configure"
-debug="-ggdb2"
-ldflags="-lmcheck"
+# >=4.7 has small macros section.
+if gcc --version|perl -ne 'exit(!(/(\d+)\.(\d+)/&&($1>4||($1==4&&$2>=7))));';then
+  debug="-g3"
+else
+  debug="-g2"
+fi
+mcheck="-lmcheck"
 fast=false
 readline=""
 
@@ -60,7 +65,12 @@ do
 	if [ "$1" = "-s" ];then
 		# -O0 is important to override GCC -O2.
 		debug="-O0 -s"
-		#ldflags=""
+		shift
+		continue
+	fi
+
+	if [ "$1" = "--nomcheck" ];then
+		mcheck=""
 		shift
 		continue
 	fi
@@ -109,9 +119,10 @@ rm -f errs1.ok
 
 	test -z "$CC" && CC=gcc
 	: >errs1.c
+	# -Wp,-D_FORTIFY_SOURCE=2: /usr/include/features.h:329:3: error: #warning _FORTIFY_SOURCE requested but disabled [-Werror=cpp]
 	for flags in													\
-		"$debug -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4"	\
-		"$debug -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions"						\
+		"$debug -pipe -Wall -fexceptions -fstack-protector --param=ssp-buffer-size=4"	\
+		"$debug -pipe -Wall -fexceptions"						\
 		""													\
 		;do
 		if [ -z "$flags" ];then
@@ -119,7 +130,10 @@ rm -f errs1.ok
 			echo >&2 "flags error"
 			exit 1
 		fi
-		"$CC" $flags -c errs1.c -o /dev/null && break
+		# Use -Werror:
+		# cc1: warnings being treated as errors
+		# archive.c:1: error: -fstack-protector not supported for this target
+		"$CC" $flags -Werror -c errs1.c -o /dev/null && break
 	done
 	if test -n "$customm" && "$CC" $customm -c errs1.c -o /dev/null;then
 		flags="$customm $flags"
@@ -130,7 +144,7 @@ rm -f errs1.ok
 	export GCJFLAGS="$flags"
 	export CFLAGS_FOR_TARGET="$flags"
 	export CXXFLAGS_FOR_TARGET="$flags"
-	export LDFLAGS="$ldflags"
+	export LDFLAGS="$mcheck"
 
 	time nice "$configure" $target $targets $customss $readline --enable-debug --disable-sim --enable-gold --enable-plugins $maintainer $werror --with-separate-debug-dir=/usr/lib/debug "$@"