diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/configure.ac b/configure.ac index 6a3b6a7f..4b08e102 100644 --- a/configure.ac +++ b/configure.ac @@ -48,13 +48,13 @@ AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in]) AC_CANONICAL_HOST -AC_ARG_ENABLE([tls], -AS_HELP_STRING([--enable-tls], [enable use of thread local storage]), -use_tls=yes, use_tls=no) -AM_CONDITIONAL(USE_TLS, test "$use_tls" = yes) -AS_IF([test "$use_tls" = yes], [AC_DEFINE(USE_TLS)]) +AC_ARG_ENABLE([thread-safety], +AS_HELP_STRING([--enable-thread-safety], [enable thread safety of libraries]), +use_tls=locks, use_locks=no) +AM_CONDITIONAL(USE_LOCKS, test "$use_locks" = yes) +AS_IF([test "$use_locks" = yes], [AC_DEFINE(USE_LOCKS)]) -AH_TEMPLATE([USE_TLS], [Defined if thread local storage should be used.]) +AH_TEMPLATE([USE_LOCKS], [Defined if libraries should be thread-safe.]) dnl Add all the languages for which translations are available. ALL_LINGUAS= @@ -74,6 +74,13 @@ CFLAGS="$old_CFLAGS"]) AS_IF([test "x$ac_cv_c99" != xyes], AC_MSG_ERROR([gcc with C99 support required])) +AC_CACHE_CHECK([for gcc with TLS support], ac_cv_tls, [dnl +AC_COMPILE_IFELSE([dnl +__thread int a; int foo (int b) { return a + b; }], + ac_cv_tls=yes, ac_cv_tls=no)]) +AS_IF([test "x$ac_cv_tls" != xyes], + AC_MSG_ERROR([gcc with TLS support required])) + LOCALEDIR=$datadir AC_SUBST(LOCALEDIR) AC_DEFINE_UNQUOTED(LOCALEDIR, "$LOCALEDIR") |