The author of configure.in made quite a strange strange decision here ...

diff --git a/configure b/configure
index 3d537ab..ca33b8d 100755
--- a/configure
+++ b/configure
@@ -4306,7 +4306,7 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
-LDFLAGS="$CFLAGS"
+#LDFLAGS="$CFLAGS"
 LDFLAGS_BIN="$LDFLAGS"
 
 if test "x$FC" = "xnone" ; then