use __convex__

diff --git a/aclocal.m4 b/aclocal.m4
index 5b8b8c21f9eab3058f174f151435499c2d89bb76..dd78799dedcb320404faf8a3a2f5b67b83dfd3b4 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -127,7 +127,7 @@ define(SUDO_CONVEX,
 [echo checking for ConvexOS 
 AC_BEFORE([$0], [AC_COMPILE_CHECK])AC_BEFORE([$0], [AC_TEST_PROGRAM])AC_BEFORE([
 $0], [AC_HEADER_EGREP])AC_BEFORE([$0], [AC_TEST_CPP])AC_PROGRAM_EGREP(yes,
-[#ifdef convex
+[#ifdef __convex__
   yes
 #endif
 ], AC_DEFINE(_CONVEX_SOURCE) [$1], [$2])