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| author | Ruediger Meier | 2015-01-20 13:49:55 +0100 |
|---|---|---|
| committer | Ruediger Meier | 2015-01-20 15:37:52 +0100 |
| commit | e85e8720d5ecc3680426281a3894c437368e0d4a (patch) | |
| tree | 78c4aaf0b07262208bbc8da1d74f438f5d96ea23 /m4 | |
| parent | tests: python tests should not remove user's LD_LIBRARY_PATH (diff) | |
| download | kernel-qcow2-util-linux-e85e8720d5ecc3680426281a3894c437368e0d4a.tar.gz kernel-qcow2-util-linux-e85e8720d5ecc3680426281a3894c437368e0d4a.tar.xz kernel-qcow2-util-linux-e85e8720d5ecc3680426281a3894c437368e0d4a.zip | |
build-sys: avoid icc warnings "ignoring unknown option"
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@ga-group.nl>
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/compiler.m4 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/m4/compiler.m4 b/m4/compiler.m4 index 062f93623..058c73f06 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"])]) |