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author | Steve Langasek <steve.langasek@ubuntu.com> | 2019-01-03 16:26:05 -0800 |
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committer | Steve Langasek <steve.langasek@ubuntu.com> | 2019-01-03 17:26:38 -0800 |
commit | 9c52e721044e7501c3d4567b36d222dc7326224a (patch) | |
tree | 9011790770130c60a712a6f125ad50d60e07cc74 /m4/longdouble.m4 | |
parent | 9727ff2a3fa0e94a42b34a579027bacf4146d571 (diff) | |
parent | 186ff16e8d12ff15d518000c17f115ccab5275a4 (diff) |
New upstream version 1.0.1
Diffstat (limited to 'm4/longdouble.m4')
-rw-r--r-- | m4/longdouble.m4 | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/m4/longdouble.m4 b/m4/longdouble.m4 new file mode 100644 index 00000000..25590f47 --- /dev/null +++ b/m4/longdouble.m4 @@ -0,0 +1,31 @@ +# longdouble.m4 serial 2 (gettext-0.15) +dnl Copyright (C) 2002-2003, 2006 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Bruno Haible. +dnl Test whether the compiler supports the 'long double' type. +dnl Prerequisite: AC_PROG_CC + +dnl This file is only needed in autoconf <= 2.59. Newer versions of autoconf +dnl have a macro AC_TYPE_LONG_DOUBLE with identical semantics. + +AC_DEFUN([gt_TYPE_LONGDOUBLE], +[ + AC_CACHE_CHECK([for long double], gt_cv_c_long_double, + [if test "$GCC" = yes; then + gt_cv_c_long_double=yes + else + AC_TRY_COMPILE([ + /* The Stardent Vistra knows sizeof(long double), but does not support it. */ + long double foo = 0.0; + /* On Ultrix 4.3 cc, long double is 4 and double is 8. */ + int array [2*(sizeof(long double) >= sizeof(double)) - 1]; + ], , + gt_cv_c_long_double=yes, gt_cv_c_long_double=no) + fi]) + if test $gt_cv_c_long_double = yes; then + AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the 'long double' type.]) + fi +]) |