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| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | configure.in | 21 |
2 files changed, 28 insertions, 0 deletions
@@ -1,3 +1,10 @@ +Thu Jul 3 16:08:36 2008 Tanaka Akira <akr@fsij.org> + + * 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 + Thu Jul 3 12:49:39 2008 Yukihiro Matsumoto <matz@ruby-lang.org> * lib/net/smtp.rb (Net::SMTP::start): use 'localhost' instead of diff --git a/configure.in b/configure.in index 87b0b1a0aa..55976da76d 100644 --- a/configure.in +++ b/configure.in @@ -700,6 +700,27 @@ powerpc-darwin*) ;; esac AC_FUNC_MEMCMP + +# 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 comes with Debian GNU/Linux Etch 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 strerror strftime\ strchr strstr crypt flock vsnprintf\ isnan finite isinf hypot acosh erf tgamma lgamma_r cbrt \ |