diff options
| author | russell <russell@f38db490-d61c-443f-a65b-d21fe96a405b> | 2009-01-16 15:51:43 +0000 |
|---|---|---|
| committer | russell <russell@f38db490-d61c-443f-a65b-d21fe96a405b> | 2009-01-16 15:51:43 +0000 |
| commit | 52acc4c45786fc04da9536c2801eb2b483cc2009 (patch) | |
| tree | 3e0b68760b7b6d49c72de4fd5b747ed4d5726ad3 /autoconf/ast_func_fork.m4 | |
| parent | 5d9d64e584ec5220835eb10a124b555d449fa3d3 (diff) | |
| parent | caebf8461f9849f484eb5bbd649880e457c20e31 (diff) | |
Creating tag for the release of asterisk-1.4.23-rc4
git-svn-id: http://svn.digium.com/svn/asterisk/tags/1.4.23-rc4@168755 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'autoconf/ast_func_fork.m4')
| -rw-r--r-- | autoconf/ast_func_fork.m4 | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/autoconf/ast_func_fork.m4 b/autoconf/ast_func_fork.m4 new file mode 100644 index 000000000..37bf0c397 --- /dev/null +++ b/autoconf/ast_func_fork.m4 @@ -0,0 +1,59 @@ +# AST_FUNC_FORK +# ------------- +AN_FUNCTION([fork], [AST_FUNC_FORK]) +AN_FUNCTION([vfork], [AST_FUNC_FORK]) +AC_DEFUN([AST_FUNC_FORK], +[AC_REQUIRE([AC_TYPE_PID_T])dnl +AC_CHECK_HEADERS(vfork.h) +AC_CHECK_FUNCS(fork vfork) +if test "x$ac_cv_func_fork" = xyes; then + _AST_FUNC_FORK +else + ac_cv_func_fork_works=$ac_cv_func_fork +fi +if test "x$ac_cv_func_fork_works" = xcross; then + case $host in + *-*-amigaos* | *-*-msdosdjgpp* | *-*-uclinux* | *-*-linux-uclibc* ) + # Override, as these systems have only a dummy fork() stub + ac_cv_func_fork_works=no + ;; + *) + ac_cv_func_fork_works=yes + ;; + esac + AC_MSG_WARN([result $ac_cv_func_fork_works guessed because of cross compilation]) +fi +ac_cv_func_vfork_works=$ac_cv_func_vfork +if test "x$ac_cv_func_vfork" = xyes; then + _AC_FUNC_VFORK +fi; +if test "x$ac_cv_func_fork_works" = xcross; then + ac_cv_func_vfork_works=$ac_cv_func_vfork + AC_MSG_WARN([result $ac_cv_func_vfork_works guessed because of cross compilation]) +fi + +if test "x$ac_cv_func_vfork_works" = xyes; then + AC_DEFINE(HAVE_WORKING_VFORK, 1, [Define to 1 if `vfork' works.]) +else + AC_DEFINE(vfork, fork, [Define as `fork' if `vfork' does not work.]) +fi +if test "x$ac_cv_func_fork_works" = xyes; then + AC_DEFINE(HAVE_WORKING_FORK, 1, [Define to 1 if `fork' works.]) +fi +])# AST_FUNC_FORK + + +# _AST_FUNC_FORK +# ------------- +AC_DEFUN([_AST_FUNC_FORK], + [AC_CACHE_CHECK(for working fork, ac_cv_func_fork_works, + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], + [ + /* By Ruediger Kuhlmann. */ + return fork () < 0; + ])], + [ac_cv_func_fork_works=yes], + [ac_cv_func_fork_works=no], + [ac_cv_func_fork_works=cross])])] +)# _AST_FUNC_FORK |