diff options
author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-07-12 15:03:28 +0000 |
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committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-07-12 15:03:28 +0000 |
commit | 40e3baf292e77d7bfa1a7ffc56ba16bc232b49b0 (patch) | |
tree | 5b0de7b984ab9293c7192b5ace4b0cddccd9ca3a /configure.in | |
parent | e5a1622cd60233a17cd6334fc52d54590e1f2f54 (diff) |
merge revision(s) 17841,17845,17858:
* configure.in (erfc): erfc of glibc comes with Debian GNU/Linux Etch
on IA64 is broken. erfc(10000.0) aborts.
use missing/erf.c instead.
http://sources.redhat.com/ml/libc-hacker/2005-08/msg00008.html
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_6@18043 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'configure.in')
-rw-r--r-- | configure.in | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/configure.in b/configure.in index ee0e81c257..c7758620f7 100644 --- a/configure.in +++ b/configure.in @@ -530,6 +530,27 @@ esac AC_FUNC_MEMCMP AC_FUNC_FSEEKO AC_CHECK_FUNCS(ftello) + +# http://sources.redhat.com/ml/libc-hacker/2005-08/msg00008.html +# Debian GNU/Linux Etch's libc6.1 2.3.6.ds1-13etch5 has this problem. +# Debian GNU/Linux Lenny's libc6.1 2.7-10 has no problem. +AC_CACHE_CHECK(for broken erfc of glibc-2.3.6 on IA64, rb_broken_glibc_ia64_erfc, + [AC_TRY_RUN([ +#include <math.h> +int +main() +{ + erfc(10000.0); + return 0; +} +], + rb_broken_glibc_ia64_erfc=no, + rb_broken_glibc_ia64_erfc=yes, + rb_broken_glibc_ia64_erfc=no)]) +case $rb_broken_glibc_ia64_erfc in + yes) ac_cv_func_erf=no;; +esac + AC_REPLACE_FUNCS(dup2 memmove strcasecmp strncasecmp strerror strftime\ strchr strstr strtoul crypt flock vsnprintf\ isnan finite isinf hypot acosh erf) |