Enable -Werror by default

3 files changed, 46 insertions, 1 deletions

diff --git a/gprof/ChangeLog b/gprof/ChangeLog
index 333e952..9a07866 100644
--- a/gprof/ChangeLog
+++ b/gprof/ChangeLog
@@ -1,3 +1,11 @@
+2005-03-16  Nick Clifton  <nickc@redhat.com>
+	    Ben Elliston  <bje@au.ibm.com>
+
+	* configure.in (error-on-warning): New switch: Add -Werror to the
+	compiler command line.  Enabled by default.  Disable via
+	--disable-error-on-warning.
+	* configure: Regenerate.
+
 2005-03-15  Nick Clifton  <nickc@redhat.com>
 
 	* basic_blocks.c (print_exec_counts): Step through sorted array of
diff --git a/gprof/configure b/gprof/configure
index 70bb404..d8df941 100755
--- a/gprof/configure
+++ b/gprof/configure
@@ -859,6 +859,7 @@ Optional Features:
   --disable-nls           do not use Native Language Support
   --enable-maintainer-mode  enable make rules and dependencies not useful
 			  (and sometimes confusing) to the casual installer
+  --enable-error-on-warning    treat compile warnings as errors
   --enable-build-warnings Enable build-time compiler warnings if gcc is used
 
 Optional Packages:
@@ -3809,7 +3810,7 @@ test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"
 case $host in
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 3812 "configure"' > conftest.$ac_ext
+  echo '#line 3813 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -8287,6 +8288,26 @@ done
 
 
 build_warnings="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
+
+# Check whether --enable-error-on-warning or --disable-error-on-warning was given.
+if test "${enable_error_on_warning+set}" = set; then
+  enableval="$enable_error_on_warning"
+  case "${enableval}" in
+     yes | y) ERROR_ON_WARNING="yes" ;;
+     no | n)  ERROR_ON_WARNING="no" ;;
+     *) { { echo "$as_me:$LINENO: error: bad value ${enableval} for --enable-error-on-warning" >&5
+echo "$as_me: error: bad value ${enableval} for --enable-error-on-warning" >&2;}
+   { (exit 1); exit 1; }; } ;;
+   esac
+fi;
+
+# Enable -Werror by default, suppressing it only for --disable-error-on-warning
+# or --disable-build-warnings.
+if test "${ERROR_ON_WARNING}" != no
+then
+  build_warnings="$build_warnings -Werror"
+fi
+
 # Check whether --enable-build-warnings or --disable-build-warnings was given.
 if test "${enable_build_warnings+set}" = set; then
   enableval="$enable_build_warnings"
diff --git a/gprof/configure.in b/gprof/configure.in
index ae284bc..de9d791 100644
--- a/gprof/configure.in
+++ b/gprof/configure.in
@@ -33,6 +33,22 @@ AC_EXEEXT
 AC_CHECK_HEADERS(sys/gmon_out.h)
 
 build_warnings="-W -Wall -Wstrict-prototypes -Wmissing-prototypes"
+
+AC_ARG_ENABLE(error-on-warning,
+  [  --enable-error-on-warning    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 ${enableval} for --enable-error-on-warning) ;;
+   esac])
+
+# Enable -Werror by default, suppressing it only for --disable-error-on-warning
+# or --disable-build-warnings.
+if test "${ERROR_ON_WARNING}" != no
+then
+  build_warnings="$build_warnings -Werror"
+fi
+		   
 AC_ARG_ENABLE(build-warnings,
 [  --enable-build-warnings Enable build-time compiler warnings if gcc is used],
 [case "${enableval}" in