+--nomcheck

[nethome.git] / bin / errs12

diff --git a/bin/errs12 b/bin/errs12
index a679861..1f8ac85 100755 (executable)
--- 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 $werror --with-separate-debug-dir=/usr/lib/debug "$@"