Add incomplet long double math support to libmingwex.a

winsup/mingw/mingwex/math/fp_constsl.c

@@ -0,0 +1,12 @@
+#include "fp_consts.h"
+
+const union _ieee_rep __QNANL = { __LONG_DOUBLE_QNAN_REP };
+const union _ieee_rep __SNANL  = { __LONG_DOUBLE_SNAN_REP };
+const union _ieee_rep __INFL = { __LONG_DOUBLE_INF_REP };
+const union _ieee_rep __DENORML = { __LONG_DOUBLE_DENORM_REP };
+
+
+#undef nanl
+/* FIXME */
+long double nanl (const char * tagp __attribute__((unused)) )
+  { return __QNANL.ldouble_val; }