Commit e83e6a1c authored by Brad King's avatar Brad King

Test Unix Makefiles generator support for changing compilers

Add RunCMake.CompilerChange test to cover use of -DCMAKE_C_COMPILER=cc
to change the compiler of an existing build tree.  Also test for proper
failure with -DCMAKE_C_COMPILER="" and no CC in the environment.
parent c307e1c9
...@@ -52,6 +52,9 @@ if(XCODE_VERSION AND "${XCODE_VERSION}" VERSION_LESS 3) ...@@ -52,6 +52,9 @@ if(XCODE_VERSION AND "${XCODE_VERSION}" VERSION_LESS 3)
endif() endif()
add_RunCMake_test(CMP0019) add_RunCMake_test(CMP0019)
if(UNIX AND "${CMAKE_TEST_GENERATOR}" MATCHES "Unix Makefiles")
add_RunCMake_test(CompilerChange)
endif()
add_RunCMake_test(ExternalData) add_RunCMake_test(ExternalData)
add_RunCMake_test(GeneratorExpression) add_RunCMake_test(GeneratorExpression)
add_RunCMake_test(GeneratorToolset) add_RunCMake_test(GeneratorToolset)
......
cmake_minimum_required(VERSION 2.8)
if(NOT RunCMake_TEST)
set(RunCMake_TEST "$ENV{RunCMake_TEST}") # needed when cache is deleted
endif()
project(${RunCMake_TEST} NONE)
include(${RunCMake_TEST}.cmake)
You have changed variables that require your cache to be deleted.
Configure will be re-run and you may have to reset some variables.
The following variables have changed:
CMAKE_C_COMPILER= *(
|$)
enable_language(C)
message(STATUS "CMAKE_C_COMPILER is \"${CMAKE_C_COMPILER}\"")
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/cc.cmake" "set(CMAKE_C_COMPILER \"${CMAKE_C_COMPILER}\")\n")
enable_language(C)
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/cc.cmake" "set(CMAKE_C_COMPILER \"${CMAKE_C_COMPILER}\")\n")
-- CMAKE_C_COMPILER is ".*/Tests/RunCMake/CompilerChange/cc1.sh"
enable_language(C)
message(STATUS "CMAKE_C_COMPILER is \"${CMAKE_C_COMPILER}\"")
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/cc.cmake" "set(CMAKE_C_COMPILER \"${CMAKE_C_COMPILER}\")\n")
include(RunCMake)
# Detect the compiler in use in the current environment.
run_cmake(FindCompiler)
include(${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 ${cc3}")
endif()
You have changed variables that require your cache to be deleted.
Configure will be re-run and you may have to reset some variables.
The following variables have changed:
CMAKE_C_COMPILER=.*/Tests/RunCMake/CompilerChange/cc2.sh
-- CMAKE_C_COMPILER is ".*/Tests/RunCMake/CompilerChange/cc2.sh"
enable_language(C)
message(STATUS "CMAKE_C_COMPILER is \"${CMAKE_C_COMPILER}\"")
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/cc.cmake" "set(CMAKE_C_COMPILER \"${CMAKE_C_COMPILER}\")\n")
#!/bin/sh
exec "@CMAKE_C_COMPILER@" "$@"
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