Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.1 KiB
38 lines
1.1 KiB
16 years ago
|
dnl Provide AC_USE_SYSTEM_EXTENSIONS for old autoconf machines.
|
||
|
|
AC_DEFUN([ACX_USE_SYSTEM_EXTENSIONS],[
|
||
|
|
ifdef([AC_USE_SYSTEM_EXTENSIONS],[
|
||
|
|
AC_USE_SYSTEM_EXTENSIONS
|
||
|
|
],[
|
||
|
|
AC_BEFORE([$0], [AC_COMPILE_IFELSE])
|
||
|
|
AC_BEFORE([$0], [AC_RUN_IFELSE])
|
||
|
|
|
||
|
|
AC_REQUIRE([AC_GNU_SOURCE])
|
||
|
|
AC_REQUIRE([AC_AIX])
|
||
|
|
AC_REQUIRE([AC_MINIX])
|
||
|
|
|
||
|
|
AH_VERBATIM([__EXTENSIONS__],
|
||
|
|
[/* Enable extensions on Solaris. */
|
||
|
|
#ifndef __EXTENSIONS__
|
||
|
|
# undef __EXTENSIONS__
|
||
|
|
#endif
|
||
|
|
#ifndef _POSIX_PTHREAD_SEMANTICS
|
||
|
|
# undef _POSIX_PTHREAD_SEMANTICS
|
||
|
|
#endif
|
||
|
|
#ifndef _TANDEM_SOURCE
|
||
|
|
# undef _TANDEM_SOURCE
|
||
|
|
#endif])
|
||
|
|
AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
|
||
|
|
[ac_cv_safe_to_define___extensions__],
|
||
|
|
[AC_COMPILE_IFELSE(
|
||
|
|
[AC_LANG_PROGRAM([
|
||
|
|
# define __EXTENSIONS__ 1
|
||
|
|
AC_INCLUDES_DEFAULT])],
|
||
|
|
[ac_cv_safe_to_define___extensions__=yes],
|
||
|
|
[ac_cv_safe_to_define___extensions__=no])])
|
||
|
|
test $ac_cv_safe_to_define___extensions__ = yes &&
|
||
|
|
AC_DEFINE([__EXTENSIONS__])
|
||
|
|
AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
|
||
|
|
AC_DEFINE([_TANDEM_SOURCE])
|
||
|
|
])
|
||
|
|
])
|