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do not assume GCC for __builtin_setjmp 

Namely recent Sun C compiler has this function, and is not a GCC.
Meanwhile the code without RUBY_JMP_BUF assumes GCC.  We have to define
the macro when we detect __builtin_setjmp for non-GCC compilers.
This commit is contained in:
卜部昌平 2020-01-30 17:49:51 +09:00
parent 3b69552a5c
commit 72bbf60f3a
Notes: git 2020-02-06 11:47:23 +09:00 
Merged: https://github.com/ruby/ruby/pull/2885
1 changed files with 1 additions and 1 deletions
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tool/m4/ruby_setjmp_type.m4
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@ -47,6 +47,6 @@ AS_IF([test x$setjmp_prefix:$setjmp_sigmask = xsig:], [
AC_MSG_RESULT(${setjmp_prefix}setjmp${setjmp_suffix}${setjmp_cast:+\($setjmp_cast\)}${setjmp_sigmask})
AC_DEFINE_UNQUOTED([RUBY_SETJMP(env)], [${setjmp_prefix}setjmp${setjmp_suffix}($setjmp_cast(env)${setjmp_sigmask})])
AC_DEFINE_UNQUOTED([RUBY_LONGJMP(env,val)], [${setjmp_prefix}longjmp($setjmp_cast(env),val)])
AS_IF([test x$setjmp_prefix != x__builtin_], AC_DEFINE_UNQUOTED(RUBY_JMP_BUF, ${setjmp_sigmask+${setjmp_prefix}}jmp_buf))
AS_IF([test "(" "$GCC" != yes ")" -o x$setjmp_prefix != x__builtin_], AC_DEFINE_UNQUOTED(RUBY_JMP_BUF, ${setjmp_sigmask+${setjmp_prefix}}jmp_buf))
AS_IF([test x$setjmp_suffix = xex], [AC_DEFINE_UNQUOTED(RUBY_USE_SETJMPEX, 1)])
])dnl