3 files changed, 27 insertions, 0 deletions
diff --git a/Tests/RunCMake/try_compile/EnvConfig.c b/Tests/RunCMake/try_compile/EnvConfig.c
new file mode 100644
index 0000000..5b1d400
--- /dev/null
+++ b/Tests/RunCMake/try_compile/EnvConfig.c
@@ -0,0 +1,7 @@
+#ifdef TC_CONFIG_BAD
+#  error "Built in 'Bad' config"
+#endif
+int main(void)
+{
+  return 0;
+}
diff --git a/Tests/RunCMake/try_compile/EnvConfig.cmake b/Tests/RunCMake/try_compile/EnvConfig.cmake
new file mode 100644
index 0000000..4040c59
--- /dev/null
+++ b/Tests/RunCMake/try_compile/EnvConfig.cmake
@@ -0,0 +1,18 @@
+enable_language(C)
+
+set(ENV{CMAKE_BUILD_TYPE} "Bad")
+set(ENV{CMAKE_CONFIGURATION_TYPES} "Bad;Debug")
+
+add_library(tc_defs INTERFACE IMPORTED)
+target_compile_definitions(tc_defs INTERFACE "TC_CONFIG_$<UPPER_CASE:$<CONFIG>>")
+
+try_compile(ENV_CONFIG_RESULT "${CMAKE_BINARY_DIR}"
+  SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/EnvConfig.c"
+  COPY_FILE "${CMAKE_CURRENT_BINARY_DIR}/EnvConfig.bin"
+  OUTPUT_VARIABLE tc_output
+  LINK_LIBRARIES tc_defs
+  )
+if(NOT ENV_CONFIG_RESULT)
+  string(REPLACE "\n" "\n  " tc_output "  ${tc_output}")
+  message(FATAL_ERROR "try_compile failed:\n${tc_output}")
+endif()
diff --git a/Tests/RunCMake/try_compile/RunCMakeTest.cmake b/Tests/RunCMake/try_compile/RunCMakeTest.cmake
index fffb038..b19fd0e 100644
--- a/Tests/RunCMake/try_compile/RunCMakeTest.cmake
+++ b/Tests/RunCMake/try_compile/RunCMakeTest.cmake
@@ -16,6 +16,8 @@ run_cmake(BadSources2)
 run_cmake(NonSourceCopyFile)
 run_cmake(NonSourceCompileDefinitions)
 
+run_cmake(EnvConfig)
+
 set(RunCMake_TEST_OPTIONS --debug-trycompile)
 run_cmake(PlatformVariables)
 run_cmake(WarnDeprecated)