3 # Define HAVE_LTO if -flto works.
4 AN_IDENTIFIER([lto], [AC_C_LTO])
6 [AC_CACHE_CHECK([if -flto builds executables], ac_cv_c_lto,
10 int main(int argc, char **argv) {
16 [ac_cv_c_lto=${ac_cv_c_lto_cross_compile}])])
17 if test "${ac_cv_c_lto}" = "yes"; then
18 AC_DEFINE([HAVE_LTO], 1,
19 [Define to 1 if -flto works.])