diff options
| author | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2021-08-27 12:42:23 +0900 |
|---|---|---|
| committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2021-08-27 12:42:23 +0900 |
| commit | 80c1faf0769abfb459c5c749206ed02311d8274b (patch) | |
| tree | 0d3f032106e6a6061d21903e0e42598e7bc34baa /configure.ac | |
| parent | 04be8e84db1cf4f8b2a7bc7679eda4336da75d43 (diff) | |
Use C99-defined signbit macro
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/4783
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/configure.ac b/configure.ac index 900967492d..beb352dbe9 100644 --- a/configure.ac +++ b/configure.ac @@ -1916,17 +1916,7 @@ AS_CASE(["$target_os"], AC_CHECK_HEADERS(sys/pstat.h) -AC_CACHE_CHECK(for signbit, rb_cv_have_signbit, - [AC_LINK_IFELSE([AC_LANG_PROGRAM([[ -#include <math.h> -]], [[int v = signbit(-0.0);]])], - rb_cv_have_signbit=yes, - rb_cv_have_signbit=no)]) -AS_IF([test "$rb_cv_have_signbit" = yes], [ - AC_DEFINE(HAVE_SIGNBIT) -], [ - AC_LIBOBJ([signbit]) -]) +AC_DEFINE(HAVE_SIGNBIT) # C99; backward compatibility AC_FUNC_FORK |