re PR target/39048 (gcc 4.4.0 20090131 - Extra underscore hides libgcc's soft-fp...

[gcc.git] / libgcc / configure.ac

diff --git a/libgcc/configure.ac b/libgcc/configure.ac
index e735019dfc78745ccb698d6a66576de16d6e419a..ce467dda598555151a56fbf1907401accf9f96d6 100644 (file)
--- a/libgcc/configure.ac
+++ b/libgcc/configure.ac
@@ -238,6 +238,14 @@ if test "$enable_tls $gcc_cv_have_cc_tls" = "yes yes"; then
 fi
 AC_SUBST(set_have_cc_tls)
 
+# See if we have emulated thread-local storage.
+GCC_CHECK_EMUTLS
+set_use_emutls=
+if test "$enable_tls $gcc_cv_use_emutls" = "yes yes"; then
+  set_use_emutls="-DUSE_EMUTLS"
+fi
+AC_SUBST(set_use_emutls)
+
 # Conditionalize the makefile for this target machine.
 tmake_file_=
 for f in ${tmake_file}