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-rw-r--r--cmake/VendorConfig.cmake4
1 files changed, 3 insertions, 1 deletions
diff --git a/cmake/VendorConfig.cmake b/cmake/VendorConfig.cmake
index 42e72c8..1e12b33 100644
--- a/cmake/VendorConfig.cmake
+++ b/cmake/VendorConfig.cmake
@@ -24,7 +24,9 @@ set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${CONFIG_CXX_FLAGS} ${CONF
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${CONFIG_CXX_FLAGS} ${CONFIG_CXX_FLAGS_RELEASE}")
# Install paths
-set(CMAKE_INSTALL_PREFIX ${CONFIG_INSTALL_PREFIX})
+if(NOT CONFIG_INSTALL_PREFIX STREQUAL "")
+ set(CMAKE_INSTALL_PREFIX ${CONFIG_INSTALL_PREFIX})
+endif()
## Version information, used in src/version.h.in
if (EXISTS "${PROJECT_SOURCE_DIR}/.git")