relocate the entry point address when used

[deliverable/binutils-gdb.git] / bfd / warning.m4

diff --git a/bfd/warning.m4 b/bfd/warning.m4
index 38feb5f03363d7bfb6eb24f8212ce259e7773dbf..244dd4483ce79e86c155502e40b58caf6e173e2e 100644 (file)
--- a/bfd/warning.m4
+++ b/bfd/warning.m4
@@ -1,16 +1,44 @@
 dnl Common configure.in fragment
+dnl
+dnl   Copyright 2012 Free Software Foundation
+dnl
+dnl This file is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 3 of the License, or
+dnl (at your option) any later version.
+dnl 
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl 
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; see the file COPYING3.  If not see
+dnl <http://www.gnu.org/licenses/>.
+dnl
 
 AC_DEFUN([AM_BINUTILS_WARNINGS],[
-WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
+GCC_WARN_CFLAGS="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
+AC_EGREP_CPP([^[0-3]$],[__GNUC__],,GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wshadow")
 
 AC_ARG_ENABLE(werror,
-  [  --enable-werror    treat compile warnings as errors],
+  [  --enable-werror         treat compile warnings as errors],
   [case "${enableval}" in
      yes | y) ERROR_ON_WARNING="yes" ;;
      no | n)  ERROR_ON_WARNING="no" ;;
      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
    esac])
 
+# Disable -Wformat by default when using gcc on mingw
+case "${host}" in
+  *-*-mingw32*)
+    if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
+      GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Wno-format"
+    fi
+    ;;
+  *) ;;
+esac
+
 # Enable -Werror by default when using gcc
 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
     ERROR_ON_WARNING=yes
@@ -18,19 +46,25 @@ fi
 
 NO_WERROR=
 if test "${ERROR_ON_WARNING}" = yes ; then
-    WARN_CFLAGS="$WARN_CFLAGS -Werror"
+    GCC_WARN_CFLAGS="$GCC_WARN_CFLAGS -Werror"
     NO_WERROR="-Wno-error"
 fi
                   
+if test "${GCC}" = yes ; then
+  WARN_CFLAGS="${GCC_WARN_CFLAGS}"
+fi
+
 AC_ARG_ENABLE(build-warnings,
-[  --enable-build-warnings Enable build-time compiler warnings],
+[  --enable-build-warnings enable build-time compiler warnings],
 [case "${enableval}" in
-  yes) ;;
-  no)  WARN_CFLAGS="-w";;
+  yes) WARN_CFLAGS="${GCC_WARN_CFLAGS}";;
+  no)  if test "${GCC}" = yes ; then
+         WARN_CFLAGS="-w"
+       fi;;
   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
-        WARN_CFLAGS="${WARN_CFLAGS} ${t}";;
+        WARN_CFLAGS="${GCC_WARN_CFLAGS} ${t}";;
   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
-        WARN_CFLAGS="${t} ${WARN_CFLAGS}";;
+        WARN_CFLAGS="${t} ${GCC_WARN_CFLAGS}";;
   *)    WARN_CFLAGS=`echo "${enableval}" | sed -e "s/,/ /g"`;;
 esac])