X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=m4%2Fensc_syscallnr.m4;fp=m4%2Fensc_syscallnr.m4;h=db6efb3bacd5dca6d9f621f3caadebf1d76acc78;hb=ec4370f7ebd7fb0ce7f002f5bf2c74f03acd3ec1;hp=868ca3817a13efd57f634ee1fc3ff790d56a2396;hpb=9234e6a7cb48373edec38284ba54a819037b79b2;p=util-vserver.git

diff --git a/m4/ensc_syscallnr.m4 b/m4/ensc_syscallnr.m4
index 868ca38..db6efb3 100644
--- a/m4/ensc_syscallnr.m4
+++ b/m4/ensc_syscallnr.m4
@@ -1,4 +1,4 @@
-dnl $Id: ensc_syscallnr.m4,v 1.6 2004/03/08 19:55:28 ensc Exp $
+dnl $Id: ensc_syscallnr.m4 2187 2005-10-28 16:01:19Z ensc $
 
 dnl Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
 dnl  
@@ -15,19 +15,22 @@ dnl You should have received a copy of the GNU General Public License
 dnl along with this program; if not, write to the Free Software
 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
-dnl Usage: ENSC_SYSCALLNR(<syscall>,<default>)
+dnl Usage: ENSC_SYSCALLNR(<syscall>,<default>[,<fallback>])
 
 AC_DEFUN([ENSC_SYSCALLNR],
 [
 	AC_REQUIRE([AC_PROG_CPP])
 	AC_REQUIRE([AC_PROG_EGREP])
-	AC_REQUIRE([ENSC_KERNEL_HEADERS])
 
 	AC_CACHE_CHECK([for number of syscall '$1'], [ensc_cv_value_syscall_$1],
 	[
 		AC_LANG_PUSH(C)
 		AC_LANG_CONFTEST([
-#include <asm/unistd.h>
+#ifdef ENSC_SYSCALL_FALLBACK
+#  include ENSC_SYSCALL_FALLBACK
+#else
+#  include <asm/unistd.h>
+#endif
 #ifdef __NR_$1
 ensc_syscall_tmp_nr=__NR_$1;
 ensc_syscall_tmp_src=ENSC_MARK
@@ -35,10 +38,10 @@ ensc_syscall_tmp_src=ENSC_MARK
 ])
 		ensc_syscall_tmp_nr=
 		ensc_syscall_tmp_src=
-		test "$ensc_syscall_tmp_nr" || \
-			eval $($CPP $CPPFLAGS -D ENSC_MARK='glibc'                                 conftest.c | $EGREP '^ensc_syscall_tmp_(nr=[[1-9]][[0-9]]*;|src=.*)$')
-		test "$ensc_syscall_tmp_nr" || \
-			eval $($CPP $CPPFLAGS -D ENSC_MARK='kernel' -I $ensc_cv_path_kernelheaders conftest.c | $EGREP '^ensc_syscall_tmp_(nr=[[1-9]][[0-9]]*;|src=.*)$')
+		test x"$ensc_syscall_tmp_nr" != x || \
+			eval $($CPP $CPPFLAGS -D ENSC_MARK='glibc'                                    conftest.c | $EGREP '^ensc_syscall_tmp_(nr=[[1-9]][[0-9]]*;|src=.*)$')
+		test x"$ensc_syscall_tmp_nr" != x -o x'$3' = x || \
+			eval $($CPP $CPPFLAGS -D ENSC_MARK='fallback' -D ENSC_SYSCALL_FALLBACK='"$3"' conftest.c | $EGREP '^ensc_syscall_tmp_(nr=[[1-9]][[0-9]]*;|src=.*)$')
 		test "$ensc_syscall_tmp_nr" || {
 			ensc_syscall_tmp_nr=$2
 			ensc_syscall_tmp_src=default