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| author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-01-26 12:41:43 +0000 |
|---|---|---|
| committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-01-26 12:41:43 +0000 |
| commit | 96542c36786fb4dd6a94d0b83834f267478f2241 (patch) | |
| tree | 0c074c4e45b13cba3636a26b4a1eb6cdc3f2f35c /configure.in | |
| parent | fe98a03c532936b80199e84fc5d94bbe295bdaf0 (diff) | |
* configure.in: test unsetenv returns a value.
unsetenv is void in older BSDs (FreeBSD 6 and OpenBSD 4.5 at least).
* hash.c (ruby_setenv): don't use the result of unsetenv if unsetenv
doesn't return a value.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26427 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 6709122613..791389f4b7 100644 --- a/configure.in +++ b/configure.in @@ -1121,6 +1121,16 @@ AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall chroot getcwd eacce mktime timegm gmtime_r clock_gettime gettimeofday\ pread sendfile shutdown sigaltstack) +AC_CACHE_CHECK(for unsetenv returns a value, rb_cv_unsetenv_return_value, + [AC_TRY_COMPILE([ +#include <stdlib.h> +], [int v = unsetenv("foo");], + rb_cv_unsetenv_return_value=yes, + rb_cv_unsetenv_return_value=no)]) +if test "$rb_cv_unsetenv_return_value" = no; then + AC_DEFINE(VOID_UNSETENV) +fi + AC_CACHE_CHECK(for __builtin_setjmp, ac_cv_func___builtin_setjmp, [AC_TRY_LINK([@%:@include <setjmp.h> jmp_buf jb; void t(v) int v; {__builtin_longjmp(jb, v);}], |