diff options
Diffstat (limited to 'Tests/RunCMake/CompilerChange/RunCMakeTest.cmake')
-rw-r--r-- | Tests/RunCMake/CompilerChange/RunCMakeTest.cmake | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/Tests/RunCMake/CompilerChange/RunCMakeTest.cmake b/Tests/RunCMake/CompilerChange/RunCMakeTest.cmake new file mode 100644 index 000000000..d38371680 --- /dev/null +++ b/Tests/RunCMake/CompilerChange/RunCMakeTest.cmake @@ -0,0 +1,58 @@ +include(RunCMake) + +# Detect the compiler in use in the current environment. +run_cmake(FindCompiler) +include(${RunCMake_BINARY_DIR}/FindCompiler-build/cc.cmake) +if(NOT CMAKE_C_COMPILER) + message(FATAL_ERROR "FindCompiler provided no compiler!") +endif() +if(NOT IS_ABSOLUTE "${CMAKE_C_COMPILER}") + message(FATAL_ERROR "FindCompiler provided non-absolute path \"${CMAKE_C_COMPILER}\"!") +endif() +if(NOT EXISTS "${CMAKE_C_COMPILER}") + message(FATAL_ERROR "FindCompiler provided non-existing path \"${CMAKE_C_COMPILER}\"!") +endif() + +# Now that we have the full compiler path, hide CC. +unset(ENV{CC}) + +# Wrap around the real compiler so we can change the compiler +# path without changing the underlying compiler. +set(ccIn ${RunCMake_SOURCE_DIR}/cc.sh.in) +set(cc1 ${RunCMake_BINARY_DIR}/cc1.sh) +set(cc2 ${RunCMake_BINARY_DIR}/cc2.sh) +set(cc3 CMAKE_C_COMPILER-NOTFOUND) +configure_file(${ccIn} ${cc1} @ONLY IMMEDIATE) +configure_file(${ccIn} ${cc2} @ONLY IMMEDIATE) + +# Use a single build tree for remaining tests without cleaning. +set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/ChangeCompiler-build) +set(RunCMake_TEST_NO_CLEAN 1) +file(REMOVE_RECURSE "${RunCMake_TEST_BINARY_DIR}") + +# Check build with compiler wrapper 1. +set(RunCMake_TEST_OPTIONS -DCMAKE_C_COMPILER=${cc1}) +set(ENV{RunCMake_TEST} "FirstCompiler") +run_cmake(FirstCompiler) +include(${RunCMake_TEST_BINARY_DIR}/cc.cmake) +if(NOT "${CMAKE_C_COMPILER}" STREQUAL "${cc1}") + message(FATAL_ERROR "FirstCompiler built with compiler:\n ${CMAKE_C_COMPILER}\nand not with:\n ${cc1}") +endif() + +# Check rebuild with compiler wrapper 2. +set(RunCMake_TEST_OPTIONS -DCMAKE_C_COMPILER=${cc2}) +set(ENV{RunCMake_TEST} "SecondCompiler") +run_cmake(SecondCompiler) +include(${RunCMake_TEST_BINARY_DIR}/cc.cmake) +if(NOT "${CMAKE_C_COMPILER}" STREQUAL "${cc2}") + message(FATAL_ERROR "SecondCompiler built with compiler:\n ${CMAKE_C_COMPILER}\nand not with:\n ${cc2}") +endif() + +# Check failure with an empty compiler string. +set(RunCMake_TEST_OPTIONS -DCMAKE_C_COMPILER=) +set(ENV{RunCMake_TEST} "EmptyCompiler") +run_cmake(EmptyCompiler) +include(${RunCMake_TEST_BINARY_DIR}/cc.cmake) +if(NOT "${CMAKE_C_COMPILER}" STREQUAL "${cc3}") + message(FATAL_ERROR "Empty built with compiler:\n ${CMAKE_C_COMPILER}\nand not with:\n ${cc3}") +endif() |