2011-10-09 Bruno Haible <bruno@clisp.org>
+ isfinite: Fix for platforms where 'long double' == 'double'.
+ * m4/isfinite.m4 (gl_ISFINITEL_WORKS): Require gl_LONG_DOUBLE_VS_DOUBLE.
+ Don't blindly assume 80-bit 'long double'.
+
isfinite, isinf, isnan tests: Avoid syntax error on MSVC 9.
* m4/math_h.m4 (gl_LONG_DOUBLE_VS_DOUBLE): New macro.
* modules/isfinite-tests (configure.ac): Require
-# isfinite.m4 serial 12
+# isfinite.m4 serial 13
dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gl_BIGENDIAN])
+ AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether isfinite(long double) works], [gl_cv_func_isfinitel_works],
[
result |= 1;
}
-#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
/* Representation of an 80-bit 'long double' as an initializer for a sequence
of 'unsigned int' words. */
# ifdef WORDS_BIGENDIAN