Reset LDFLAGS before testing for strtok_r

They may contain all kinds of things that make the test fail.
See #2823 for details

diff --git a/configure.ac b/configure.ac
index eab3432..7a14e01 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -767,6 +767,8 @@ AC_FUNC_STRERROR_R
 
 SAVE_CFLAGS="$CFLAGS"
 CFLAGS="-Wall -Werror"
+SAVE_LDFAGS="$LDFLAGS"
+LDFLAGS=""
 
 AC_CACHE_CHECK([for strtok_r],
   [c_cv_have_strtok_r_default],
@@ -839,6 +841,7 @@ if test "x$c_cv_have_strtok_r_default" = "xno"; then
 fi
 
 CFLAGS="$SAVE_CFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
 if test "x$c_cv_have_strtok_r_reentrant" = "xyes"; then
   CFLAGS="$CFLAGS -D_REENTRANT=1"
 fi