+--nomcheck

[nethome.git] / bin / errs12

diff --git a/bin/errs12 b/bin/errs12
index 3517e7b..1f8ac85 100755 (executable)
--- a/bin/errs12
+++ b/bin/errs12
@@ -1,20 +1,26 @@
-#! /bin/sh
+#! /bin/bash
 # $Id$
 
 renice +19 -p $$; ionice -c3 -p $$
 
-# For ctags
-PS1=x
-. ~/.bashrc
+# Do not use for ctags - it would override $PATH:
+# PS1=x; . ~/.bashrc
+function ctags {(unset ctags; PS1=x; . ~/.bashrc; ctags; );}
 
 customss="--enable-static --disable-shared"
 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=""
 
 while true
 do
@@ -59,7 +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
@@ -93,16 +104,25 @@ rm -f errs1.ok
        if test -f `dirname $configure`/gcc/reload.c;then
                werror="--disable-werror"
                customm=""
+               # --disable-static would fail on finding built libstdc++ due to -static-libstdc++.
+               # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49829
+               #customss=""
                customss="--disable-static --enable-shared"
        else
                werror=""
        fi
 
+       if test -d readline/doc && ! test -e readline/readline.c;then
+               # Fedora gdb.spec prep.
+               readline="--with-system-readline"
+       fi
+
        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
@@ -110,7 +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 $flags"
@@ -121,9 +144,9 @@ rm -f errs1.ok
        export GCJFLAGS="$flags"
        export CFLAGS_FOR_TARGET="$flags"
        export CXXFLAGS_FOR_TARGET="$flags"
-       export LDFLAGS="$ldflags"
+       export LDFLAGS="$mcheck"
 
-       time nice "$configure" $target $targets $customss --enable-debug --disable-sim --enable-gold --enable-plugins $maintainer $werror --with-separate-debug-dir=/usr/lib/debug "$@"
+       time nice "$configure" $target $targets $customss $readline --enable-debug --disable-sim --enable-gold --enable-plugins $maintainer $werror --with-separate-debug-dir=/usr/lib/debug "$@"
 
        (ctags; test -d gdb && (cd gdb; ctags; cd testsuite; ctags; cd ../gdbserver; ctags)) &