From: Ruediger Meier <ruediger.meier@xxxxxxxxxxx>
Our macro UL_WARN_ADD could not discover these ones:
icc: command line warning #10006: ignoring unknown option '-Wmissing-parameter-type'
icc: command line warning #10006: ignoring unknown option '-Wredundant-decls'
icc: command line warning #10006: ignoring unknown option '-Wunused-result'
icc: command line warning #10006: ignoring unknown option '-Wnested-externs'
We need to use AC_LANG_WERROR.
Signed-off-by: Ruediger Meier <ruediger.meier@xxxxxxxxxxx>
---
m4/compiler.m4 | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/m4/compiler.m4 b/m4/compiler.m4
index 062f936..058c73f 100644
--- a/m4/compiler.m4
+++ b/m4/compiler.m4
@@ -21,11 +21,18 @@ AC_DEFUN([UL_WARN_ADD], [
m4_define([warnvarname], m4_default([$2],WARN_CFLAGS))
AS_VAR_PUSHDEF([ul_Warn], [ul_cv_warn_$1])dnl
AC_CACHE_CHECK([whether compiler handles $1], m4_defn([ul_Warn]), [
+ # store AC_LANG_WERROR status, then turn it on
+ save_ac_[]_AC_LANG_ABBREV[]_werror_flag="${ac_[]_AC_LANG_ABBREV[]_werror_flag}"
+ AC_LANG_WERROR
+
ul_save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="-Werror ${CPPFLAGS} $1"
AC_PREPROC_IFELSE([AC_LANG_PROGRAM([])],
[AS_VAR_SET(ul_Warn, [yes])],
[AS_VAR_SET(ul_Warn, [no])])
+ # restore AC_LANG_WERROR
+ ac_[]_AC_LANG_ABBREV[]_werror_flag="${save_ac_[]_AC_LANG_ABBREV[]_werror_flag}"
+
CPPFLAGS="$ul_save_CPPFLAGS"
])
AS_VAR_IF(ul_Warn, [yes], [UL_AS_VAR_APPEND(warnvarname, [" $1"])])
--
1.8.4.5
--
To unsubscribe from this list: send the line "unsubscribe util-linux" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
