59 lines
2.2 KiB
CMake
59 lines
2.2 KiB
CMake
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()
|