diff options
| author | Dan Nicholson <dbn.lists@gmail.com> | 2007-12-26 11:12:29 -0600 |
|---|---|---|
| committer | Dan Nicholson <dbn.lists@gmail.com> | 2007-12-26 15:38:30 -0600 |
| commit | ab57cbaccccb30fd743ba3283251430e6bc3a071 (patch) | |
| tree | 02898c2b71f76ef6e162c80f9c2f7381221d156a /configure.ac | |
| parent | 4c5a2b3af214e7a0ec0742b17beb1e719552ecae (diff) | |
autoconf: Helper options for adding GCC 32/64 bit flags
Two new configure options to add -m32 or -m64 to the CFLAGS and CXXFLAGS
when GCC is in use. By default, the user supplied options are
environment variables are respected, but these options are quick helps
for the common case of x86/x86_64 using GCC.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index f2f2d75a1a..2acbd67e51 100644 --- a/configure.ac +++ b/configure.ac @@ -80,6 +80,38 @@ AC_SUBST(OPT_FLAGS) AC_SUBST(ARCH_FLAGS) dnl +dnl Hacks to enable 32 or 64 bit build +dnl +AC_ARG_ENABLE(32-bit, + [AS_HELP_STRING([--enable-32-bit], + [build 32-bit libraries @<:@default=auto@:>@])], + enable_32bit="$enableval", + enable_32bit=auto +) +if test "x$enable_32bit" = xyes; then + if test "x$GCC" = xyes; then + CFLAGS="$CFLAGS -m32" + fi + if test "x$GXX" = xyes; then + CXXFLAGS="$CXXFLAGS -m32" + fi +fi +AC_ARG_ENABLE(64-bit, + [AS_HELP_STRING([--enable-64-bit], + [build 64-bit libraries @<:@default=auto@:>@])], + enable_64bit="$enableval", + enable_64bit=auto +) +if test "x$enable_64bit" = xyes; then + if test "x$GCC" = xyes; then + CFLAGS="$CFLAGS -m64" + fi + if test "x$GXX" = xyes; then + CXXFLAGS="$CXXFLAGS -m64" + fi +fi + +dnl dnl shared/static libraries, mimic libtool options dnl AC_ARG_ENABLE(static, |