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build-sys: use -Wno-typedef-redefinition only for clang
author
Zbigniew Jędrzejewski-Szmek
<zbyszek@in.waw.pl>
Fri, 10 Oct 2014 03:25:01 +0000
(22:25 -0500)
committer
Zbigniew Jędrzejewski-Szmek
<zbyszek@in.waw.pl>
Fri, 10 Oct 2014 03:32:54 +0000
(23:32 -0400)
Our checks for -Wno-xxx switches do not work with gcc [1].
[1] https://gcc.gnu.org/wiki/FAQ#wnowarning
configure.ac
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diff --git
a/configure.ac
b/configure.ac
index caf1f0e54edcb551a038ae76ba561e057e963d54..d04f6f464fbf42db1a2c419a0b15f0f8a2cf8089 100644
(file)
--- a/
configure.ac
+++ b/
configure.ac
@@
-183,7
+183,6
@@
CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
-Wno-unused-parameter \
-Wno-missing-field-initializers \
-Wno-unused-result \
- -Wno-typedef-redefinition \
-Werror=overflow \
-Wdate-time \
-Wnested-externs \
@@
-198,6
+197,11
@@
CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
-fstack-protector-strong \
-fPIE \
--param=ssp-buffer-size=4])
+
+AS_CASE([$CC], [*clang*],
+ [CC_CHECK_FLAGS_APPEND([with_cppflags], [CPPFLAGS], [\
+ -Wno-typedef-redefinition])])
+
AS_CASE([$CFLAGS], [*-O[[12345\ ]]*],
[CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
-flto -ffat-lto-objects])],