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authorDan Williams <dcbw@redhat.com>2012-08-10 09:06:05 -0500
committerDan Williams <dcbw@redhat.com>2012-08-22 20:26:51 -0500
commit8d0abc1bdd28232ffe46045a88d15834830ec87e (patch)
treebc384e578e11d3f3f6657187d4130daa82dba329 /m4
parentbc1d88da9ee4d18b1a8872db2e2b546929e279d7 (diff)
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build: enable more compiler warnings: --enable-more-warnings=yes/no/error
Diffstat (limited to 'm4')
-rw-r--r--m4/compiler-warnings.m417
1 files changed, 12 insertions, 5 deletions
diff --git a/m4/compiler-warnings.m4 b/m4/compiler-warnings.m4
index 511b898..539eae0 100644
--- a/m4/compiler-warnings.m4
+++ b/m4/compiler-warnings.m4
@@ -1,16 +1,20 @@
AC_DEFUN([LIBQMI_COMPILER_WARNINGS],
[AC_ARG_ENABLE(more-warnings,
- AS_HELP_STRING([--enable-more-warnings], [Maximum compiler warnings]),
- set_more_warnings="$enableval",set_more_warnings=yes)
-AC_MSG_CHECKING(for more warnings, including -Werror)
+ AS_HELP_STRING([--enable-more-warnings], [Possible values: no/yes/error]),
+ set_more_warnings="$enableval",set_more_warnings=error)
+AC_MSG_CHECKING(for more warnings)
if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
AC_MSG_RESULT(yes)
- CFLAGS="-Wall -Werror -std=gnu89 $CFLAGS"
+ CFLAGS="-Wall -std=gnu89 $CFLAGS"
for option in -Wmissing-declarations -Wmissing-prototypes \
-Wdeclaration-after-statement -Wstrict-prototypes \
-fno-strict-aliasing -Wno-deprecated-declarations \
- -Wint-to-pointer-cast; do
+ -Wint-to-pointer-cast -Wfloat-equal -Wno-unused-parameter \
+ -Wno-sign-compare -Wunused-but-set-variable \
+ -Wundef -Wimplicit-function-declaration \
+ -Wpointer-arith -Winit-self -Wshadow \
+ -Wmissing-include-dirs -Waggregate-return; do
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $option"
AC_MSG_CHECKING([whether gcc understands $option])
@@ -25,6 +29,9 @@ if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
unset SAVE_CFLAGS
done
unset option
+ if test "x$set_more_warnings" = xerror; then
+ CFLAGS="$CFLAGS -Werror"
+ fi
else
AC_MSG_RESULT(no)
fi