diff options
| author | Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> | 2010-12-18 22:54:49 +0100 |
|---|---|---|
| committer | Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> | 2010-12-18 22:54:49 +0100 |
| commit | c35dbd0a66f5abede84a4ea966bd765ed6942edb (patch) | |
| tree | 264ae6bf3da50f35b381a07f8cfc6fa2838de704 /configure.ac | |
| parent | 82b83ffa0b69cfd8f81d4b122b9d5c020d68ea46 (diff) | |
Use configure to detect compiler warning flags
By checking the supported compiler warning flags, different gcc releases
are supported without the crude --disable-extra-flags option.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 46 |
1 files changed, 33 insertions, 13 deletions
diff --git a/configure.ac b/configure.ac index 38164cf..5ac7c86 100644 --- a/configure.ac +++ b/configure.ac @@ -96,18 +96,6 @@ AC_ARG_ENABLE([debug], AM_CONDITIONAL([ENABLE_DEBUG], [test "x$enable_debug" = xyes]) -dnl Disable extra warn flags -AC_ARG_ENABLE([extra-flags], - AS_HELP_STRING([--disable-extra-flags], - [Disable extra compiler warning flags.]), - [case "${enableval}" in - yes) extra_flags=yes ;; - no) extra_flags=no ;; - *) AC_MSG_ERROR([bad value ${enableval} for --disable-extra-flags]) ;; - esac], [extra_flags=yes]) - -AM_CONDITIONAL([DISABLE_EXTRA_FLAGS], [test "x$extra_flags" = xno]) - dnl Checks for programs AC_PROG_CC AM_PROG_CC_C_O @@ -120,10 +108,42 @@ PKG_CHECK_MODULES([libmnl], [libmnl >= 1]) dnl Checks for header files -dnl Checks for typedefs, structures, and compiler characteristics. +dnl Checks for typedefs, structures AC_CHECK_TYPES([union nf_inet_addr],,,[#include <linux/types.h> #include <netinet/in.h> #include <linux/netfilter.h>]) + +dnl Checks for compiler characteristics. +dnl Check extra warning flags except +dnl -Wconversion -> we need it +dnl -Wunreachable-code -> fails with ntoh* +dnl -Wpointer-arith -> limbnl uses it +AX_CFLAGS_GCC_OPTION(-Waggregate-return) +AX_CFLAGS_GCC_OPTION(-Wbad-function-cast) +AX_CFLAGS_GCC_OPTION(-Wcast-align) +AX_CFLAGS_GCC_OPTION(-Wcast-qual) +AX_CFLAGS_GCC_OPTION(-Werror) +AX_CFLAGS_GCC_OPTION(-Wextra) +AX_CFLAGS_GCC_OPTION(-Wfloat-equal) +AX_CFLAGS_GCC_OPTION(-Wformat=2) +AX_CFLAGS_GCC_OPTION(-Winit-self) +AX_CFLAGS_GCC_OPTION(-Winline) +AX_CFLAGS_GCC_OPTION(-Wmissing-declarations) +AX_CFLAGS_GCC_OPTION(-Wmissing-format-attribute) +AX_CFLAGS_GCC_OPTION(-Wmissing-prototypes) +AX_CFLAGS_GCC_OPTION(-Wnested-externs) +AX_CFLAGS_GCC_OPTION(-Wno-missing-field-initializers) +AX_CFLAGS_GCC_OPTION(-Woverlength-strings) +AX_CFLAGS_GCC_OPTION(-Wpacked) +AX_CFLAGS_GCC_OPTION(-Wredundant-decls) +AX_CFLAGS_GCC_OPTION(-Wshadow) +AX_CFLAGS_GCC_OPTION(-Wsign-compare) +AX_CFLAGS_GCC_OPTION(-Wstrict-prototypes) +AX_CFLAGS_GCC_OPTION(-Wswitch-default) +AX_CFLAGS_GCC_OPTION(-Wundef) +AX_CFLAGS_GCC_OPTION(-Wunused) +AX_CFLAGS_GCC_OPTION(-Wwrite-strings) + dnl Checks for library functions. dnl Generate output |