diff options
Diffstat (limited to 'gold/configure.ac')
| -rw-r--r-- | gold/configure.ac | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gold/configure.ac b/gold/configure.ac index 96733e4..3fbcd0e 100644 --- a/gold/configure.ac +++ b/gold/configure.ac @@ -269,6 +269,20 @@ AC_CACHE_CHECK([for constructor priorities], [gold_cv_c_conprio], AM_CONDITIONAL(CONSTRUCTOR_PRIORITY, test "$gold_cv_c_conprio" = "yes") +dnl Test for the -frandom-seed option. +AC_CACHE_CHECK([for -frandom-seed support], [gold_cv_c_random_seed], +[save_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -frandom-seed=foo" +AC_COMPILE_IFELSE([int i;], [gold_cv_c_random_seed=yes], +[gold_cv_c_random_seed=no]) +CFLAGS="$save_CFLAGS"]) +if test "$gold_cv_c_random_seed" = "yes"; then + # In Makefile, '$@' will be expanded to be the name of the file + # being built, providing a unique seed for each file. + RANDOM_SEED_CFLAGS=-frandom-seed=\$@ +fi +AC_SUBST(RANDOM_SEED_CFLAGS) + AM_BINUTILS_WARNINGS WARN_CXXFLAGS=`echo ${WARN_CFLAGS} | sed -e 's/-Wstrict-prototypes//' -e 's/-Wmissing-prototypes//'` |