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| author | Daniel Drake <dsd@gentoo.org> | 2008-01-26 14:03:43 +0000 |
|---|---|---|
| committer | Daniel Drake <dsd@gentoo.org> | 2008-01-26 14:03:43 +0000 |
| commit | 37b7f9a112eb1441d352467f661205b8872d0553 (patch) | |
| tree | 464ad6fda3f10e9f33bfa22e0aed17d36f3b8aab | |
| parent | e3a09ca0b9cb6f46d54a0130f678c6097240a2bd (diff) | |
| download | libusb-37b7f9a112eb1441d352467f661205b8872d0553.tar.gz | |
Only use -fgnu89-inline when supported
J F pointed out that this option only works on gcc 4.3 and newer.
| -rw-r--r-- | configure.ac | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 191f8e9..660ca2a 100644 --- a/configure.ac +++ b/configure.ac @@ -40,8 +40,14 @@ AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build], [build_examples='no']) AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != "xno"]) +# Restore gnu89 inline semantics on gcc 4.3 and newer +saved_cflags="$CFLAGS" +CFLAGS="$CFLAGS -fgnu89-inline" +AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), inline_cflags="-fgnu89-inline", inline_cflags="") +CFLAGS="$saved_cflags" + AC_DEFINE([API_EXPORTED], [__attribute__((visibility("default")))], [Default visibility]) -AM_CFLAGS="-std=gnu99 -fgnu89-inline -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration -Wno-pointer-sign -Wshadow" +AM_CFLAGS="-std=gnu99 $inline_cflags -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration -Wno-pointer-sign -Wshadow" AC_SUBST(AM_CFLAGS) AC_CONFIG_FILES([libusb-1.0.pc] [Makefile] [libusb/Makefile] [examples/Makefile]) |