dnl ** Additional Autoconf tests for BIRD configure script
dnl ** (c) 1999 Martin Mares <mj@ucw.cz>
+AC_DEFUN([BIRD_CHECK_THREAD_LOCAL],
+[
+ AC_CACHE_CHECK(
+ [whether _Thread_local is known],
+ [bird_cv_thread_local],
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM(
+ [
+ _Thread_local static int x = 42;
+ ],
+ []
+ )
+ ],
+ [bird_cv_thread_local=yes],
+ [bird_cv_thread_local=no]
+ )
+ )
+])
+
AC_DEFUN([BIRD_CHECK_PTHREADS],
[
bird_tmp_cflags="$CFLAGS"
)
])
+AC_DEFUN([BIRD_CHECK_ANDROID_GLOB],
+[
+ AC_CACHE_CHECK(
+ [for glob.h],
+ [bird_cv_lib_glob],
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM(
+ [
+ #include <glob.h>
+ #include <stdlib.h>
+ ],
+ [ glob(NULL, 0, NULL, NULL); ]
+ )
+ ],
+ [bird_cv_lib_glob=yes],
+ [
+ bird_tmp_libs="$LIBS"
+ LIBS="$LIBS -landroid-glob"
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM(
+ [
+ #include <glob.h>
+ #include <stdlib.h>
+ ],
+ [ glob(NULL, 0, NULL, NULL); ]
+ )
+ ],
+ [bird_cv_lib_glob=-landroid-glob],
+ [bird_cv_lib_glob=no]
+ )
+ LIBS="$bird_tmp_libs"
+ ]
+ )
+ )
+])
+
+AC_DEFUN([BIRD_CHECK_ANDROID_LOG],
+[
+ AC_CACHE_CHECK(
+ [for syslog lib flags],
+ [bird_cv_lib_log],
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM(
+ [ #include <sys/syslog.h> ],
+ [ syslog(0, ""); ]
+ )
+ ],
+ [bird_cv_lib_log=yes],
+ [
+ bird_tmp_libs="$LIBS"
+ LIBS="$LIBS -llog"
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM(
+ [ #include <sys/syslog.h> ],
+ [ syslog(0, ""); ]
+ )
+ ],
+ [bird_cv_lib_log=-llog],
+ [bird_cv_lib_log=no]
+ )
+ LIBS="$bird_tmp_libs"
+ ]
+ )
+ )
+])
+
+AC_DEFUN([BIRD_CHECK_LTO],
+[
+ bird_tmp_cflags="$CFLAGS"
+ bird_tmp_ldflags="$LDFLAGS"
+ CFLAGS="-flto"
+ LDFLAGS="-flto=4"
+
+ AC_CACHE_CHECK(
+ [whether link time optimizer is available],
+ [bird_cv_c_lto],
+ [
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM()],
+ [bird_cv_c_lto=yes],
+ [bird_cv_c_lto=no]
+ )
+ ]
+ )
+
+ CFLAGS="$bird_tmp_cflags"
+ LDFLAGS="$bird_tmp_ldflags"
+])
+
AC_DEFUN([BIRD_CHECK_GCC_OPTION],
[
)
esac
])
+
+AC_DEFUN([BIRD_CHECK_BISON_VERSION],
+[
+ $1=`bison --version | ( read line; echo ${line##* } )`
+ case "$$1" in
+ 1.* | 2.0* | 2.1* | 2.2* | 2.3*)
+ AC_MSG_ERROR([Provided Bison version $$1 is too old, need at least 2.4])
+ ;;
+ 2.*)
+ bird_bison_synclines=no
+ bird_bison_enhanced_error=no
+ ;;
+ 3.* | 4.* | 5.* | 6.* | 7.* | 8.* | 9.*)
+ bird_bison_synclines=yes
+ bird_bison_enhanced_error=yes
+ ;;
+ *)
+ AC_MSG_ERROR([Couldn't parse Bison version $$1. Call the developers for help.])
+ ;;
+ esac
+])