dnl ** Additional Autoconf tests for BIRD configure script dnl ** (c) 1999 Martin Mares <mj@ucw.cz> AC_DEFUN([BIRD_CHECK_PTHREADS], [ bird_tmp_cflags="$CFLAGS" CFLAGS="$CFLAGS -pthread" AC_CACHE_CHECK( [whether POSIX threads are available], [bird_cv_lib_pthreads], [ AC_LINK_IFELSE( [ AC_LANG_PROGRAM( [ #include <pthread.h> ], [ pthread_t pt; pthread_create(&pt, NULL, NULL, NULL); pthread_spinlock_t lock; pthread_spin_lock(&lock); ] ) ], [bird_cv_lib_pthreads=yes], [bird_cv_lib_pthreads=no] ) ] ) CFLAGS="$bird_tmp_cflags" ]) AC_DEFUN([BIRD_CHECK_MPLS_KERNEL], [ AC_CACHE_CHECK( [for Linux MPLS headers], [bird_cv_mpls_kernel], [ AC_COMPILE_IFELSE( [ AC_LANG_PROGRAM( [ #include <linux/lwtunnel.h> #include <linux/netlink.h> #include <linux/rtnetlink.h> #include <sys/socket.h> void t(int arg); ], [ t(AF_MPLS); t(RTA_VIA); t(RTA_NEWDST); t(RTA_ENCAP_TYPE); t(RTA_ENCAP); struct rtvia rtvia; t(LWTUNNEL_ENCAP_MPLS); ] ) ], [bird_cv_mpls_kernel=yes], [bird_cv_mpls_kernel=no] ) ] ) ]) AC_DEFUN([BIRD_CHECK_GCC_OPTION], [ bird_tmp_cflags="$CFLAGS" CFLAGS="$3 $2" AC_CACHE_CHECK( [whether CC supports $2], [$1], [ AC_COMPILE_IFELSE( [AC_LANG_PROGRAM()], [$1=yes], [$1=no] ) ] ) CFLAGS="$bird_tmp_cflags" ]) AC_DEFUN([BIRD_ADD_GCC_OPTION], [ if test "$$1" = yes ; then CFLAGS="$CFLAGS $2" fi ]) # BIRD_CHECK_PROG_FLAVOR_GNU(PROGRAM-PATH, IF-SUCCESS, [IF-FAILURE]) # copied from autoconf internal _AC_PATH_PROG_FLAVOR_GNU AC_DEFUN([BIRD_CHECK_PROG_FLAVOR_GNU], [ # Check for GNU $1 case `"$1" --version 2>&1` in *GNU*) $2 ;; m4_ifval([$3], [*) $3 ;; ] ) esac ])