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| author | Lennart Poettering <lennart@poettering.net> | 2005-08-21 00:35:33 +0000 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2005-08-21 00:35:33 +0000 |
| commit | f487ac489936fe499b7146f1e239eab1a270dcd1 (patch) | |
| tree | 3bf3f8afa350177e09bca196db6b04e43a1330e5 | |
| parent | 6be8bbd920f435f3ed9c5babb8161a6194b690ec (diff) | |
* Detect usable compiler flags automatically (Thanks, Ikke!)
git-svn-id: file:///home/lennart/svn/public/avahi/trunk@374 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe
| -rw-r--r-- | configure.ac | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/configure.ac b/configure.ac index 798574a..c4ec775 100644 --- a/configure.ac +++ b/configure.ac @@ -46,6 +46,30 @@ AC_PROG_GCC_TRADITIONAL # libtool stuff AC_PROG_LIBTOOL +test_gcc_flag() { + AC_LANG_CONFTEST([int main() {}]) + $CC -c conftest.c $CFLAGS $@ > /dev/null 2> /dev/null + ret=$? + rm -f conftest.o + return $ret +} + +# If using GCC specify some additional parameters +if test "x$GCC" = "xyes" ; then + + DESIRED_FLAGS="-std=c99 -Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wlarger-than-4000 -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter" + + for flag in $DESIRED_FLAGS ; do + AC_MSG_CHECKING([whether $CC accepts $flag]) + if test_gcc_flag $flag ; then + CFLAGS="$CFLAGS $flag" + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + done +fi + # Checks for header files. AC_HEADER_STDC AC_CHECK_HEADERS([arpa/inet.h fcntl.h inttypes.h limits.h netinet/in.h stdlib.h string.h sys/ioctl.h sys/socket.h sys/time.h unistd.h]) @@ -68,15 +92,6 @@ AC_FUNC_STAT AC_TYPE_MODE_T AC_TYPE_PID_T -# If using GCC specify some additional parameters -if test "x$GCC" = "xyes" ; then - CFLAGS="$CFLAGS -pipe -W -Wall -pedantic" - - AC_LANG_CONFTEST([int main() {}]) - $CC -c conftest.c -std=c99 -Wno-unused-parameter $CFLAGS > /dev/null 2> /dev/null && CFLAGS="$CFLAGS -std=c99 -Wno-unused-parameter" - rm -f conftest.o -fi - PKG_PROG_PKG_CONFIG # |