CMake: fix add_subdirectory(SwiftShader) when CMAKE_BUILD_TYPE is set in parent project

If parent project sets CMAKE_BUILD_TYPE as a non-cache variable (e.g. like https://github.com/google/amber does), CMake emits an error because we're trying to set it as a cache variable. Bug: b/145758253 Change-Id: Ie169c45dd11674be9e40610f5dd711b8fd5830f8 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/43952 Kokoro-Result: kokoro <noreply+kokoro@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Tested-by: Antonio Maiorano <amaiorano@google.com>

CMake: fix add_subdirectory(SwiftShader) when CMAKE_BUILD_TYPE is set in parent project
31038eae · Antonio Maiorano · 1e2fba30 · 31038eae
Commit 31038eae authored Apr 15, 2020 by Antonio Maiorano
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CMakeLists.txt CMakeLists.txt +1 -1

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--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -93,8 +93,8 @@ find_library(XCB xcb)

 if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE "Release" CACHE STRING "The type of build: Debug Release MinSizeRel RelWithDebInfo." FORCE)
+    set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS Debug Release MinSizeRel RelWithDebInfo)
 endif()
-set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS Debug Release MinSizeRel RelWithDebInfo)

 function (option_if_not_defined name description default)
    if(NOT DEFINED ${name})