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-rw-r--r--lib/zlib/CMakeLists.txt14
1 files changed, 8 insertions, 6 deletions
diff --git a/lib/zlib/CMakeLists.txt b/lib/zlib/CMakeLists.txt
index b1b74031d..6c52578ee 100644
--- a/lib/zlib/CMakeLists.txt
+++ b/lib/zlib/CMakeLists.txt
@@ -8,12 +8,14 @@ file(GLOB SOURCE
"*.c"
)
-add_library(zlib ${SOURCE})
+if(NOT TARGET zlib)
+ add_library(zlib ${SOURCE})
-if (MSVC)
- # Remove SCL warnings, we expect this library to have been tested safe
- SET_TARGET_PROPERTIES(
- zlib PROPERTIES COMPILE_FLAGS "-D_CRT_SECURE_NO_WARNINGS"
- )
+ if (MSVC)
+ # Remove SCL warnings, we expect this library to have been tested safe
+ SET_TARGET_PROPERTIES(
+ zlib PROPERTIES COMPILE_FLAGS "-D_CRT_SECURE_NO_WARNINGS"
+ )
+ endif()
endif()