diff --git a/configure.in b/configure.in
index 34df0ae1021..33d9051b224 100644
--- a/configure.in
+++ b/configure.in
@@ -725,9 +725,12 @@ dnl test -n "$GCC" && CFLAGS="$CFLAGS -fpic"
 dnl add -fPIC option on Solaris if we are building dynamic extensions
 dnl PHP_SOLARIS_PIC_WEIRDNESS
 
+LDFLAGS=""
 if test "$PHP_THREAD_SAFETY" = "yes"; then
   TSRM_BASIC_CHECKS
   TSRM_OTHER_CHECKS
+  EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LDFLAGS"
+  LDFLAGS=""
 fi
 
 
@@ -737,7 +740,6 @@ AC_SUBST(phplibdir)
 AC_SUBST(phptempdir)
 EXTRA_LIBS="$EXTRA_LIBS $LIBS"
 LIBS=""
-LDFLAGS=""
 
 AC_BUILD_RPATH