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configure.in: do not use a variable for longjmp
* configure.in (ac_cv_func___builtin_setjmp): gcc 4.9 disallows a variable as the second argument of __builtin_longjmp(). [ruby-core:61800] [Bug #9692] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45503 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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2 changed files with 13 additions and 2 deletions
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Wed Apr 2 17:43:17 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
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* configure.in (ac_cv_func___builtin_setjmp): gcc 4.9 disallows a
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variable as the second argument of __builtin_longjmp().
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[ruby-core:61800] [Bug #9692]
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Wed Apr 2 15:12:18 2014 SHIBATA Hiroshi <shibata.hiroshi@gmail.com>
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* common.mk: Use redmine-2.x url for DeveloperHowto wiki.
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@ -2076,8 +2076,13 @@ AC_CACHE_CHECK(for sigsetjmp as a macro or function, ac_cv_func_sigsetjmp,
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AC_CACHE_CHECK(for __builtin_setjmp, ac_cv_func___builtin_setjmp,
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[AC_TRY_LINK([@%:@include <setjmp.h>
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jmp_buf jb; void t(v) int v; {__builtin_longjmp(jb, v);}],
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[__builtin_setjmp(jb);],
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@%:@include <stdio.h>
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jmp_buf jb;
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void t(void) {__builtin_longjmp(jb, 1);}],
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[
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void (*volatile f)(void) = t;
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if (!__builtin_setjmp(jb)) printf("%d\n", f != 0);
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],
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[ac_cv_func___builtin_setjmp=yes],
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[ac_cv_func___builtin_setjmp=no])
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])
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