portability: Disable support for long double in snprintf replacement

ccache doesn't link correctly on HP-UX 11.00 when support for long double
is enabled.

diff --git a/m4/snprintf.m4 b/m4/snprintf.m4
index cf08c5c61dd232bf041ff9871eee0fd4c9b0be2c..7d3aa068e972169a2f33816ccf80dd81cf1f95f0 100644 (file)
--- a/m4/snprintf.m4
+++ b/m4/snprintf.m4
@@ -128,7 +128,9 @@ AC_DEFUN([HW_FUNC_VSNPRINTF],
     [AC_CHECK_HEADERS([inttypes.h locale.h stddef.h stdint.h])
     AC_CHECK_MEMBERS([struct lconv.decimal_point, struct lconv.thousands_sep],
       [], [], [#include <locale.h>])
-    AC_TYPE_LONG_DOUBLE
+dnl ccache doesn't link correctly on HP-UX 11.00 when support for long double
+dnl is enabled.
+dnl    AC_TYPE_LONG_DOUBLE
     AC_TYPE_LONG_LONG_INT
     AC_TYPE_UNSIGNED_LONG_LONG_INT
     AC_TYPE_SIZE_T