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-rw-r--r--config.tests/libmng/libmng.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/config.tests/libmng/libmng.cpp b/config.tests/libmng/libmng.cpp
index 9def33e..fc3e693 100644
--- a/config.tests/libmng/libmng.cpp
+++ b/config.tests/libmng/libmng.cpp
@@ -46,9 +46,11 @@ int main(int, char **)
mng_handle hMNG;
mng_cleanup(&hMNG);
+#if defined(MNG_VERSION_MAJOR)
#if MNG_VERSION_MAJOR < 1 || (MNG_VERSION_MAJOR == 1 && MNG_VERSION_MINOR == 0 && MNG_VERSION_RELEASE < 9)
#error System libmng version is less than 1.0.9; using built-in version instead.
#endif
+#endif
return 0;
}