1dnl Check if the compiler is configured for setjmp/longjmp exceptions.
2AC_DEFUN([GCC_CHECK_SJLJ_EXCEPTIONS],
3  [AC_CACHE_CHECK([whether the compiler is configured for setjmp/longjmp exceptions],
4    ac_cv_sjlj_exceptions,
5    [AC_COMPILE_IFELSE(
6      [AC_LANG_PROGRAM(
7        [[#ifdef __USING_SJLJ_EXCEPTIONS__
8          this will fail
9          #endif]],
10        [[int i;]])],
11      [ac_cv_sjlj_exceptions=no],
12      [ac_cv_sjlj_exceptions=yes])])])
13