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* configure.in (signbit): signbit is a macro in C99.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27341 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mrkn 2010-04-14 09:29:29 +00:00
parent 8e7a682be0
commit 55f7857a77
2 changed files with 16 additions and 1 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Wed Apr 14 18:23:00 2010 Kenta Murata <mrkn@mrkn.jp>
* configure.in (signbit): signbit is a macro in C99.
Wed Apr 14 17:56:06 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* io.c (io_shift_cbuf): should terminate.

13
configure.in
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@ -1116,8 +1116,19 @@ AS_CASE([$rb_cv_broken_glibc_ia64_erfc],[yes],[ac_cv_func_erf=no])
AC_REPLACE_FUNCS(dup2 memmove strerror\
strchr strstr crypt flock\
isnan finite isinf hypot acosh erf tgamma lgamma_r cbrt signbit \
isnan finite isinf hypot acosh erf tgamma lgamma_r cbrt \
strlcpy strlcat)
AC_CACHE_CHECK(for signbit, rb_cv_have_signbit,
[AC_TRY_COMPILE([
#include <math.h>
], [int v = signbit(-0.0);],
rb_cv_have_signbit=yes,
rb_cv_have_signbit=no)])
if test "$rb_cv_have_signbit" = yes; then
AC_DEFINE(HAVE_SIGNBIT)
else
AC_LIBOBJ([signbit])
fi
AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall chroot getcwd eaccess\
truncate ftruncate chsize times utimes utimensat fcntl lockf lstat\
link symlink readlink readdir_r fsync fdatasync\