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fixed error-checking
[util-vserver.git]
/
util-vserver
/
m4
/
ensc_kerneldir.m4
diff --git
a/util-vserver/m4/ensc_kerneldir.m4
b/util-vserver/m4/ensc_kerneldir.m4
index
d4a2bdc
..
8555e67
100644
(file)
--- a/
util-vserver/m4/ensc_kerneldir.m4
+++ b/
util-vserver/m4/ensc_kerneldir.m4
@@
-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
])