1 files changed, 23 insertions, 0 deletions
diff --git a/Tests/RunCMake/try_compile/PlatformVariables.cmake b/Tests/RunCMake/try_compile/PlatformVariables.cmake
new file mode 100644
index 0000000..54da645
--- /dev/null
+++ b/Tests/RunCMake/try_compile/PlatformVariables.cmake
@@ -0,0 +1,23 @@
+enable_language(C)
+
+# Normally this variable should be set by a platform information module or
+# a toolchain file, but for purposes of this test we simply set it here.
+set(CMAKE_TRY_COMPILE_PLATFORM_VARIABLES MY_CUSTOM_VARIABLE)
+
+set(MY_CUSTOM_VARIABLE SOME_VALUE)
+
+try_compile(result ${CMAKE_CURRENT_BINARY_DIR}
+  SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src.c
+  OUTPUT_VARIABLE out
+  )
+if(NOT result)
+  message(FATAL_ERROR "try_compile failed:\n${out}")
+endif()
+
+# Check that the cache was populated with our custom variable.
+file(STRINGS ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/CMakeCache.txt entries
+  REGEX MY_CUSTOM_VARIABLE:UNINITIALIZED=${MY_CUSTOM_VARIABLE}
+  )
+if(NOT entries)
+  message(FATAL_ERROR "try_compile did not populate cache as expected")
+endif()