use $(LIBENSCVECTOR) instead of libensc_vector.a
[util-vserver.git] / util-vserver / m4 / ensc_kerneldir.m4
index 417a401..8555e67 100644 (file)
@@ -19,7 +19,7 @@ dnl Usage: ENSC_KERNEL_HEADERS(<var>)
 dnl        <var> ... basedir of kernel-headers (without the '/linux');
 dnl                  this value will be AC_SUBST'ed
 
-AC_DEFUN(_ENSC_KERNEL_DIR,
+AC_DEFUN([_ENSC_KERNEL_DIR],
 [
        AC_CACHE_CHECK([for linux kernel dir], [ensc_cv_path_kerneldir],
         [
@@ -41,7 +41,7 @@ AC_ARG_WITH([kerneldir],
        }
 ])
 
-AC_DEFUN(ENSC_KERNEL_HEADERS,
+AC_DEFUN([ENSC_KERNEL_HEADERS],
 [
        AC_REQUIRE([_ENSC_KERNEL_DIR])
 
@@ -50,6 +50,8 @@ AC_DEFUN(ENSC_KERNEL_HEADERS,
                ensc_cv_path_kernelheaders=$ensc_cv_path_kerneldir/include
        ])
 
-       $1=$ensc_cv_path_kernelheaders
-       AC_SUBST($1)
+       if test x"$1" != x; then
+               $1=$ensc_cv_path_kernelheaders
+               AC_SUBST($1)
+       fi
 ])