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-rw-r--r--emulators/linux_base-suse-9.1/Makefile4
1 files changed, 4 insertions, 0 deletions
diff --git a/emulators/linux_base-suse-9.1/Makefile b/emulators/linux_base-suse-9.1/Makefile
index 8cb25cc99b19..a3fd42bada52 100644
--- a/emulators/linux_base-suse-9.1/Makefile
+++ b/emulators/linux_base-suse-9.1/Makefile
@@ -63,6 +63,10 @@ UPDATES= glibc-common-2.2.4-29.${MACHINE_ARCH}.rpm \
glibc-2.2.4-29.${MACHINE_ARCH}.rpm \
zlib-1.1.3-25.7.${MACHINE_ARCH}.rpm
+.ifdef USE_LINUX
+.error You have `USE_LINUX' variable defined either in environment or in make(1) arguments. Please undefine and try again.
+.endif
+
.include <bsd.port.pre.mk>
.if (${MACHINE_ARCH} == "i386")