Tests: Shorten RunCMake.CrosscompilingEmulator executable names

Also switch to pure C.

Tests/RunCMake/CrosscompilingEmulator/AddCustomCommand.cmake

@@ -1,10 +1,11 @@
+enable_language(C)
 set(CMAKE_CROSSCOMPILING 1)
 
 # Executable: Return error code different from 0
-add_executable(generated_exe_emulator_expected simple_src_exiterror.cxx)
+add_executable(generated_exe_emulator_expected simple_src_exiterror.c)
 
 # Executable: Return error code equal to 0
-add_executable(generated_exe_emulator_unexpected generated_exe_emulator_unexpected.cxx)
+add_executable(generated_exe_emulator_unexpected emulator_unexpected.c)
 # Place the executable in a predictable location.
 set_property(TARGET generated_exe_emulator_unexpected PROPERTY RUNTIME_OUTPUT_DIRECTORY $<1:${CMAKE_CURRENT_BINARY_DIR}>)
 

Tests/RunCMake/CrosscompilingEmulator/AddCustomCommandWithArg.cmake

@@ -1,7 +1,8 @@
+enable_language(C)
 set(CMAKE_CROSSCOMPILING 1)
 
 # Executable: Return error code different from 0
-add_executable(generated_exe_emulator_expected simple_src_exiterror.cxx)
+add_executable(generated_exe_emulator_expected simple_src_exiterror.c)
 
 add_custom_command(OUTPUT output
   COMMAND generated_exe_emulator_expected

Tests/RunCMake/CrosscompilingEmulator/AddCustomTarget.cmake

@@ -1,10 +1,11 @@
+enable_language(C)
 set(CMAKE_CROSSCOMPILING 1)
 
 # Executable: Return error code different from 0
-add_executable(generated_exe_emulator_expected simple_src_exiterror.cxx)
+add_executable(generated_exe_emulator_expected simple_src_exiterror.c)
 
 # Executable: Return error code equal to 0
-add_executable(generated_exe_emulator_unexpected generated_exe_emulator_unexpected.cxx)
+add_executable(generated_exe_emulator_unexpected emulator_unexpected.c)
 # Place the executable in a predictable location.
 set_property(TARGET generated_exe_emulator_unexpected PROPERTY RUNTIME_OUTPUT_DIRECTORY $<1:${CMAKE_CURRENT_BINARY_DIR}>)
 

Tests/RunCMake/CrosscompilingEmulator/AddCustomTargetWithArg.cmake

@@ -1,7 +1,8 @@
+enable_language(C)
 set(CMAKE_CROSSCOMPILING 1)
 
 # Executable: Return error code different from 0
-add_executable(generated_exe_emulator_expected simple_src_exiterror.cxx)
+add_executable(generated_exe_emulator_expected simple_src_exiterror.c)
 
 add_custom_target(generate_output ALL
   generated_exe_emulator_expected

Tests/RunCMake/CrosscompilingEmulator/AddTest-CMP0158-NEW.cmake

@@ -1,5 +1,7 @@
+enable_language(C)
+enable_testing()
 if(CMAKE_CROSSCOMPILING)
-    message(FATAL_ERROR "cross compiling")
+  message(FATAL_ERROR "cross compiling")
 endif()
 
 cmake_policy(SET CMP0158 NEW)
@@ -8,18 +10,18 @@ enable_testing()
 add_test(NAME DoesNotUseEmulator
   COMMAND ${CMAKE_COMMAND} -E echo "Hi")
 
-add_executable(generated_exe simple_src_exiterror.cxx)
+add_executable(exe main.c)
 
 add_test(NAME ShouldNotUseEmulator
-  COMMAND generated_exe)
+  COMMAND exe)
 
 add_test(NAME DoesNotUseEmulatorWithGenex
-  COMMAND $<TARGET_FILE:generated_exe>)
+  COMMAND $<TARGET_FILE:exe>)
 
 add_subdirectory(AddTest)
 
 add_test(NAME ShouldNotUseEmulatorWithExecTargetFromSubdirAddedWithoutGenex
-  COMMAND generated_exe_in_subdir_added_to_test_without_genex)
+  COMMAND subdir_exe_no_genex)
 
 add_test(NAME DoesNotUseEmulatorWithExecTargetFromSubdirAddedWithGenex
-  COMMAND $<TARGET_FILE:generated_exe_in_subdir_added_to_test_with_genex>)
+  COMMAND $<TARGET_FILE:subdir_exe_with_genex>)

Tests/RunCMake/CrosscompilingEmulator/AddTest-CMP0158-OLD.cmake

@@ -1,25 +1,26 @@
+enable_language(C)
+enable_testing()
 if(CMAKE_CROSSCOMPILING)
-    message(FATAL_ERROR "cross compiling")
+  message(FATAL_ERROR "cross compiling")
 endif()
 
 cmake_policy(SET CMP0158 OLD)
 
-enable_testing()
 add_test(NAME DoesNotUseEmulator
   COMMAND ${CMAKE_COMMAND} -E echo "Hi")
 
-add_executable(generated_exe simple_src_exiterror.cxx)
+add_executable(exe main.c)
 
 add_test(NAME UsesEmulator
-  COMMAND generated_exe)
+  COMMAND exe)
 
 add_test(NAME DoesNotUseEmulatorWithGenex
-  COMMAND $<TARGET_FILE:generated_exe>)
+  COMMAND $<TARGET_FILE:exe>)
 
 add_subdirectory(AddTest)
 
 add_test(NAME UsesEmulatorWithExecTargetFromSubdirAddedWithoutGenex
-  COMMAND generated_exe_in_subdir_added_to_test_without_genex)
+  COMMAND subdir_exe_no_genex)
 
 add_test(NAME DoesNotUseEmulatorWithExecTargetFromSubdirAddedWithGenex
-  COMMAND $<TARGET_FILE:generated_exe_in_subdir_added_to_test_with_genex>)
+  COMMAND $<TARGET_FILE:subdir_exe_with_genex>)

Tests/RunCMake/CrosscompilingEmulator/AddTest.cmake

@@ -1,26 +1,28 @@
-set(CMAKE_CROSSCOMPILING 1)
+enable_language(C)
 enable_testing()
+set(CMAKE_CROSSCOMPILING 1)
+
 add_test(NAME DoesNotUseEmulator
   COMMAND ${CMAKE_COMMAND} -E echo "Hi")
 
-add_executable(generated_exe simple_src_exiterror.cxx)
+add_executable(exe main.c)
 
 add_test(NAME UsesEmulator
-  COMMAND generated_exe)
+  COMMAND exe)
 
 add_test(NAME DoesNotUseEmulatorWithGenex
-  COMMAND $<TARGET_FILE:generated_exe>)
+  COMMAND $<TARGET_FILE:exe>)
 
 add_subdirectory(AddTest)
 
 add_test(NAME UsesEmulatorWithExecTargetFromSubdirAddedWithoutGenex
-  COMMAND generated_exe_in_subdir_added_to_test_without_genex)
+  COMMAND subdir_exe_no_genex)
 
 add_test(NAME DoesNotUseEmulatorWithExecTargetFromSubdirAddedWithGenex
-  COMMAND $<TARGET_FILE:generated_exe_in_subdir_added_to_test_with_genex>)
+  COMMAND $<TARGET_FILE:subdir_exe_with_genex>)
 
-add_executable(generated_exe_test_launcher simple_src_exiterror.cxx)
-set_property(TARGET generated_exe_test_launcher PROPERTY TEST_LAUNCHER "pseudo_test_launcher")
+add_executable(exe_test_launcher main.c)
+set_property(TARGET exe_test_launcher PROPERTY TEST_LAUNCHER "pseudo_test_launcher")
 
 add_test(NAME UsesTestLauncherAndEmulator
-  COMMAND generated_exe_test_launcher)
+  COMMAND exe_test_launcher)

Tests/RunCMake/CrosscompilingEmulator/AddTest/CMakeLists.txt

@@ -1,5 +1,2 @@
-add_executable(generated_exe_in_subdir_added_to_test_without_genex
-  ${CMAKE_CURRENT_SOURCE_DIR}/../simple_src_exiterror.cxx)
-
-add_executable(generated_exe_in_subdir_added_to_test_with_genex
-  ${CMAKE_CURRENT_SOURCE_DIR}/../simple_src_exiterror.cxx)
+add_executable(subdir_exe_no_genex ../main.c)
+add_executable(subdir_exe_with_genex ../main.c)

Tests/RunCMake/CrosscompilingEmulator/CMakeLists.txt

@@ -1,3 +1,3 @@
 cmake_minimum_required(VERSION 3.5)
-project(${RunCMake_TEST} CXX)
+project(${RunCMake_TEST} NONE)
 include(${RunCMake_TEST}.cmake)

Tests/RunCMake/CrosscompilingEmulator/CrosscompilingEmulatorProperty.cmake

@@ -1,9 +1,11 @@
 # This tests setting the CROSSCOMPILING_EMULATOR target property from the
 # CMAKE_CROSSCOMPILING_EMULATOR variable.
 
+enable_language(C)
+
 # -DCMAKE_CROSSCOMPILING_EMULATOR=/path/to/pseudo_emulator is passed to this
 # test
-add_executable(target_with_emulator simple_src_exiterror.cxx)
+add_executable(target_with_emulator main.c)
 get_property(emulator TARGET target_with_emulator
              PROPERTY CROSSCOMPILING_EMULATOR)
 if(NOT "${emulator}" MATCHES "pseudo_emulator")
@@ -20,14 +22,14 @@ if(NOT "${emulator}" MATCHES "another_emulator")
 endif()
 
 unset(CMAKE_CROSSCOMPILING_EMULATOR CACHE)
-add_executable(target_without_emulator simple_src_exiterror.cxx)
+add_executable(target_without_emulator main.c)
 get_property(emulator TARGET target_without_emulator
              PROPERTY CROSSCOMPILING_EMULATOR)
 if(NOT "${emulator}" STREQUAL "")
   message(SEND_ERROR "Default CROSSCOMPILING_EMULATOR property not set to null")
 endif()
 
-add_executable(target_with_empty_emulator simple_src_exiterror.cxx)
+add_executable(target_with_empty_emulator main.c)
 set_property(TARGET target_with_empty_emulator PROPERTY CROSSCOMPILING_EMULATOR "")
 
 enable_testing()

Tests/RunCMake/CrosscompilingEmulator/TryRun.cmake

@@ -1,10 +1,11 @@
+enable_language(C)
 set(CMAKE_CROSSCOMPILING 1)
 
 set(ENV{PSEUDO_EMULATOR_FAIL} 1)
 
 try_run(run_result compile_result
   ${CMAKE_CURRENT_BINARY_DIR}
-  ${CMAKE_CURRENT_SOURCE_DIR}/simple_src_exiterror.cxx
+  ${CMAKE_CURRENT_SOURCE_DIR}/simple_src_exiterror.c
   RUN_OUTPUT_VARIABLE run_output)
 
 message(STATUS "run_output: ${run_output}")
@@ -15,6 +16,6 @@ set(CMAKE_CROSSCOMPILING_EMULATOR ${CMAKE_CROSSCOMPILING_EMULATOR}
   "multi arg")
 try_run(run_result compile_result
   ${CMAKE_CURRENT_BINARY_DIR}
-  ${CMAKE_CURRENT_SOURCE_DIR}/simple_src_exiterror.cxx
+  ${CMAKE_CURRENT_SOURCE_DIR}/simple_src_exiterror.c
   RUN_OUTPUT_VARIABLE run_output)
 message(STATUS "Emulator with arguments run_output: ${run_output}")

Tests/RunCMake/CrosscompilingEmulator/emulator_unexpected.c

@@ -2,7 +2,8 @@
 
 int main(int argc, const char* argv[])
 {
-  for (int i = 1; i < argc; ++i) {
+  int i;
+  for (i = 1; i < argc; ++i) {
     fprintf(stderr, "unexpected argument: '%s'\n", argv[i]);
   }
   return argc == 1 ? 0 : 1;

Tests/RunCMake/CrosscompilingEmulator/main.c

@@ -0,0 +1,4 @@
+int main(void)
+{
+  return 0;
+}

Tests/RunCMake/CrosscompilingEmulator/simple_src_exiterror.c

@@ -0,0 +1,4 @@
+int main(void)
+{
+  return 13;
+}

Tests/RunCMake/CrosscompilingEmulator/simple_src_exiterror.cxx

@@ -1,4 +0,0 @@
-int main(int, char**)
-{
-  return 13;
-}