1 From: Werner Koch <wk@gnupg.org>
2 Date: Mon, 2 Jan 2017 12:59:10 +0100
3 Subject: build: Enable gcc warnings to detect non-portable code.
7 Signed-off-by: Werner Koch <wk@gnupg.org>
8 (cherry picked from commit c52930d11fcc52515fcc09a1085bf118411566a8)
10 configure.ac | 9 +++++++++
11 1 file changed, 9 insertions(+)
13 diff --git a/configure.ac b/configure.ac
14 index 932c741ef..237189cf9 100644
17 @@ -1575,6 +1575,15 @@ if test "$GCC" = yes; then
18 if test x"$_gcc_wopt" = xyes ; then
19 mycflags="$mycflags -Wdeclaration-after-statement"
22 + AC_MSG_CHECKING([if gcc supports -Wlogical-op and -Wvla])
23 + CFLAGS="-Wlogical-op -Wvla"
24 + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])],_gcc_wopt=yes,_gcc_wopt=no)
25 + AC_MSG_RESULT($_gcc_wopt)
26 + if test x"$_gcc_wopt" = xyes ; then
27 + mycflags="$mycflags -Wlogical-op -Wvla"
31 mycflags="$mycflags -Wall"