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Diffstat (limited to 'gl/m4/frexpl.m4')
| -rw-r--r-- | gl/m4/frexpl.m4 | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gl/m4/frexpl.m4 b/gl/m4/frexpl.m4 index 8e71420a30..9df87ab82f 100644 --- a/gl/m4/frexpl.m4 +++ b/gl/m4/frexpl.m4 @@ -1,4 +1,4 @@ -# frexpl.m4 serial 18 +# frexpl.m4 serial 19 dnl Copyright (C) 2007-2012 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -8,9 +8,14 @@ AC_DEFUN([gl_FUNC_FREXPL], [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE]) + + dnl Persuade glibc <math.h> to declare frexpl(). + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + dnl Check whether it's declared. dnl MacOS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>. AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [[#include <math.h>]]) + FREXPL_LIBM= if test $HAVE_DECL_FREXPL = 1; then gl_CHECK_FREXPL_NO_LIBM |