1 AC_PREREQ(2.61) 2 AC_INIT([realtime],[realtime-20090930],[ltp-results (a] lists.sourceforge.net]) 3 AC_CONFIG_AUX_DIR([.]) 4 AM_INIT_AUTOMAKE 5 AC_CONFIG_HEADERS([include/realtime_config.h]) 6 AC_CONFIG_FILES([ \ 7 m4/Makefile \ 8 ]) 9 AC_CHECK_HEADERS_ONCE([ \ 10 pthread.h \ 11 ]) 12 AM_CONDITIONAL(CROSS_COMPILATION, test x$cross_compiling = xyes) 13 14 AC_CANONICAL_HOST 15 16 AC_PROG_CC 17 # <= autoconf 2.61 doesn't have AC_PROG_AR, but 2.63 has it. Not sure about 18 # 2.62. 19 AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL(AR, ar, :)]) 20 AC_PROG_AR 21 AC_PROG_RANLIB 22 23 AC_MSG_CHECKING([for __sync_add_and_fetch gcc builtin function]) 24 AC_LINK_IFELSE([AC_LANG_SOURCE([ 25 #ifndef _GNU_SOURCE 26 #define _GNU_SOURCE 27 #endif 28 #include <stdlib.h> 29 int main(void) { 30 char *c; 31 return __sync_add_and_fetch(c, 1); 32 }])],[has___sync_add_and_fetch=yes]) 33 if test "x$has___sync_add_and_fetch" = xyes; then 34 AC_DEFINE(HAVE___SYNC_ADD_AND_FETCH,1,[Define to 1 if you have the __sync_add_and_fetch gcc builtin function]) 35 AC_MSG_RESULT(yes) 36 else 37 AC_MSG_RESULT(no) 38 fi 39 40 REALTIME_CHECK_PRIO_INHERIT 41 REALTIME_CHECK_ROBUST_APIS 42 43 LTP_CHECK_EXP10 44 45 AC_OUTPUT 46
