Merge topic 'reduce-initial-checks'

1d21dd0f7c enable_language: Assume compiler works if ABI detection compiles
7a01250581 CMakeDetermineCompilerABI: Fold copy error into CMAKE_<LANG>_ABI_COMPILED

Acked-by: Kitware Robot <[email protected]>
Merge-request: !4789

Modules/CMakeDetermineCompilerABI.cmake

@@ -65,10 +65,13 @@ function(CMAKE_DETERMINE_COMPILER_ABI lang src)
     # Move result from cache to normal variable.
     set(CMAKE_${lang}_ABI_COMPILED ${CMAKE_${lang}_ABI_COMPILED})
     unset(CMAKE_${lang}_ABI_COMPILED CACHE)
+    if(CMAKE_${lang}_ABI_COMPILED AND _copy_error)
+      set(CMAKE_${lang}_ABI_COMPILED 0)
+    endif()
     set(CMAKE_${lang}_ABI_COMPILED ${CMAKE_${lang}_ABI_COMPILED} PARENT_SCOPE)
 
     # Load the resulting information strings.
-    if(CMAKE_${lang}_ABI_COMPILED AND NOT _copy_error)
+    if(CMAKE_${lang}_ABI_COMPILED)
       message(CHECK_PASS "done")
       file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
         "Detecting ${lang} compiler ABI info compiled with the following output:\n${OUTPUT}\n\n")

Modules/CMakeTestCCompiler.cmake

@@ -21,6 +21,15 @@ endif()
 # We now store this in CMakeCCompiler.cmake.
 unset(CMAKE_C_COMPILER_WORKS CACHE)
 
+# Try to identify the ABI and configure it into CMakeCCompiler.cmake
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
+CMAKE_DETERMINE_COMPILER_ABI(C ${CMAKE_ROOT}/Modules/CMakeCCompilerABI.c)
+if(CMAKE_C_ABI_COMPILED)
+  # The compiler worked so skip dedicated test below.
+  set(CMAKE_C_COMPILER_WORKS TRUE)
+  message(STATUS "Check for working C compiler: ${CMAKE_C_COMPILER} - skipped")
+endif()
+
 # This file is used by EnableLanguage in cmGlobalGenerator to
 # determine that that selected C compiler can actually compile
 # and link the most basic of programs.   If not, a fatal error
@@ -47,49 +56,41 @@ if(NOT CMAKE_C_COMPILER_WORKS)
   # Move result from cache to normal variable.
   set(CMAKE_C_COMPILER_WORKS ${CMAKE_C_COMPILER_WORKS})
   unset(CMAKE_C_COMPILER_WORKS CACHE)
-  set(C_TEST_WAS_RUN 1)
   __TestCompiler_restoreTryCompileTargetType()
-endif()
-
-if(NOT CMAKE_C_COMPILER_WORKS)
-  PrintTestCompilerResult(CHECK_FAIL "broken")
-  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
-    "Determining if the C compiler works failed with "
-    "the following output:\n${__CMAKE_C_COMPILER_OUTPUT}\n\n")
-  string(REPLACE "\n" "\n  " _output "${__CMAKE_C_COMPILER_OUTPUT}")
-  message(FATAL_ERROR "The C compiler\n  \"${CMAKE_C_COMPILER}\"\n"
-    "is not able to compile a simple test program.\nIt fails "
-    "with the following output:\n  ${_output}\n\n"
-    "CMake will not be able to correctly generate this project.")
-else()
-  if(C_TEST_WAS_RUN)
-    PrintTestCompilerResult(CHECK_PASS "works")
-    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
-      "Determining if the C compiler works passed with "
+  if(NOT CMAKE_C_COMPILER_WORKS)
+    PrintTestCompilerResult(CHECK_FAIL "broken")
+    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+      "Determining if the C compiler works failed with "
       "the following output:\n${__CMAKE_C_COMPILER_OUTPUT}\n\n")
+    string(REPLACE "\n" "\n  " _output "${__CMAKE_C_COMPILER_OUTPUT}")
+    message(FATAL_ERROR "The C compiler\n  \"${CMAKE_C_COMPILER}\"\n"
+      "is not able to compile a simple test program.\nIt fails "
+      "with the following output:\n  ${_output}\n\n"
+      "CMake will not be able to correctly generate this project.")
   endif()
+  PrintTestCompilerResult(CHECK_PASS "works")
+  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+    "Determining if the C compiler works passed with "
+    "the following output:\n${__CMAKE_C_COMPILER_OUTPUT}\n\n")
+endif()
 
-  # Try to identify the ABI and configure it into CMakeCCompiler.cmake
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
-  CMAKE_DETERMINE_COMPILER_ABI(C ${CMAKE_ROOT}/Modules/CMakeCCompilerABI.c)
-  # Try to identify the compiler features
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
-  CMAKE_DETERMINE_COMPILE_FEATURES(C)
+# Try to identify the compiler features
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
+CMAKE_DETERMINE_COMPILE_FEATURES(C)
 
-  # Re-configure to save learned information.
-  configure_file(
-    ${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in
-    ${CMAKE_PLATFORM_INFO_DIR}/CMakeCCompiler.cmake
-    @ONLY
-    )
-  include(${CMAKE_PLATFORM_INFO_DIR}/CMakeCCompiler.cmake)
+# Re-configure to save learned information.
+configure_file(
+  ${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in
+  ${CMAKE_PLATFORM_INFO_DIR}/CMakeCCompiler.cmake
+  @ONLY
+  )
+include(${CMAKE_PLATFORM_INFO_DIR}/CMakeCCompiler.cmake)
 
-  if(CMAKE_C_SIZEOF_DATA_PTR)
-    foreach(f ${CMAKE_C_ABI_FILES})
-      include(${f})
-    endforeach()
-    unset(CMAKE_C_ABI_FILES)
-  endif()
+if(CMAKE_C_SIZEOF_DATA_PTR)
+  foreach(f ${CMAKE_C_ABI_FILES})
+    include(${f})
+  endforeach()
+  unset(CMAKE_C_ABI_FILES)
 endif()
 
 set(CMAKE_TRY_COMPILE_TARGET_TYPE ${__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE})

Modules/CMakeTestCUDACompiler.cmake

@@ -14,6 +14,15 @@ include(CMakeTestCompilerCommon)
 # We now store this in CMakeCUDACompiler.cmake.
 unset(CMAKE_CUDA_COMPILER_WORKS CACHE)
 
+# Try to identify the ABI and configure it into CMakeCUDACompiler.cmake
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
+CMAKE_DETERMINE_COMPILER_ABI(CUDA ${CMAKE_ROOT}/Modules/CMakeCUDACompilerABI.cu)
+if(CMAKE_CUDA_ABI_COMPILED)
+  # The compiler worked so skip dedicated test below.
+  set(CMAKE_CUDA_COMPILER_WORKS TRUE)
+  message(STATUS "Check for working CUDA compiler: ${CMAKE_CUDA_COMPILER} - skipped")
+endif()
+
 # This file is used by EnableLanguage in cmGlobalGenerator to
 # determine that the selected cuda compiler can actually compile
 # and link the most basic of programs.   If not, a fatal error
@@ -34,65 +43,56 @@ if(NOT CMAKE_CUDA_COMPILER_WORKS)
   # Move result from cache to normal variable.
   set(CMAKE_CUDA_COMPILER_WORKS ${CMAKE_CUDA_COMPILER_WORKS})
   unset(CMAKE_CUDA_COMPILER_WORKS CACHE)
-  set(CUDA_TEST_WAS_RUN 1)
-endif()
-
-if(NOT CMAKE_CUDA_COMPILER_WORKS)
-  PrintTestCompilerResult(CHECK_FAIL "broken")
-  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
-    "Determining if the CUDA compiler works failed with "
-    "the following output:\n${__CMAKE_CUDA_COMPILER_OUTPUT}\n\n")
-  string(REPLACE "\n" "\n  " _output "${__CMAKE_CUDA_COMPILER_OUTPUT}")
-  message(FATAL_ERROR "The CUDA compiler\n  \"${CMAKE_CUDA_COMPILER}\"\n"
-    "is not able to compile a simple test program.\nIt fails "
-    "with the following output:\n  ${_output}\n\n"
-    "CMake will not be able to correctly generate this project.")
-else()
-  if(CUDA_TEST_WAS_RUN)
-    PrintTestCompilerResult(CHECK_PASS "works")
-    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
-      "Determining if the CUDA compiler works passed with "
+  if(NOT CMAKE_CUDA_COMPILER_WORKS)
+    PrintTestCompilerResult(CHECK_FAIL "broken")
+    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+      "Determining if the CUDA compiler works failed with "
       "the following output:\n${__CMAKE_CUDA_COMPILER_OUTPUT}\n\n")
+    string(REPLACE "\n" "\n  " _output "${__CMAKE_CUDA_COMPILER_OUTPUT}")
+    message(FATAL_ERROR "The CUDA compiler\n  \"${CMAKE_CUDA_COMPILER}\"\n"
+      "is not able to compile a simple test program.\nIt fails "
+      "with the following output:\n  ${_output}\n\n"
+      "CMake will not be able to correctly generate this project.")
   endif()
+  PrintTestCompilerResult(CHECK_PASS "works")
+  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+    "Determining if the CUDA compiler works passed with "
+    "the following output:\n${__CMAKE_CUDA_COMPILER_OUTPUT}\n\n")
+endif()
 
-  # Try to identify the ABI and configure it into CMakeCUDACompiler.cmake
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
-  CMAKE_DETERMINE_COMPILER_ABI(CUDA ${CMAKE_ROOT}/Modules/CMakeCUDACompilerABI.cu)
-  # Try to identify the compiler features
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
-  CMAKE_DETERMINE_COMPILE_FEATURES(CUDA)
+# Try to identify the compiler features
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
+CMAKE_DETERMINE_COMPILE_FEATURES(CUDA)
 
-  if("x${CMAKE_CUDA_SIMULATE_ID}" STREQUAL "xMSVC")
-    set(CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES "${CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES}")
-    set(CMAKE_CUDA_IMPLICIT_LINK_DIRECTORIES "${CMAKE_CUDA_HOST_IMPLICIT_LINK_DIRECTORIES}")
-  endif()
+if("x${CMAKE_CUDA_SIMULATE_ID}" STREQUAL "xMSVC")
+  set(CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES "${CMAKE_CUDA_HOST_IMPLICIT_LINK_LIBRARIES}")
+  set(CMAKE_CUDA_IMPLICIT_LINK_DIRECTORIES "${CMAKE_CUDA_HOST_IMPLICIT_LINK_DIRECTORIES}")
+endif()
 
-  # Filter out implicit link libraries that should not be passed unconditionally.
-  # See CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES_EXCLUDE in CMakeDetermineCUDACompiler.
-  list(REMOVE_ITEM CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES ${CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES_EXCLUDE})
+# Filter out implicit link libraries that should not be passed unconditionally.
+# See CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES_EXCLUDE in CMakeDetermineCUDACompiler.
+list(REMOVE_ITEM CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES ${CMAKE_CUDA_IMPLICIT_LINK_LIBRARIES_EXCLUDE})
 
-  if(CMAKE_CUDA_COMPILER_ID STREQUAL "NVIDIA")
-    # Remove the CUDA Toolkit include directories from the set of
-    # implicit system include directories.
-    # This resolves the issue that NVCC doesn't specify these
-    # includes as SYSTEM includes when compiling device code, and sometimes
-    # they contain headers that generate warnings, so let users mark them
-    # as SYSTEM explicitly
-    if(CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES)
-      list(REMOVE_ITEM CMAKE_CUDA_IMPLICIT_INCLUDE_DIRECTORIES
-        ${CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES}
-        )
-    endif()
+if(CMAKE_CUDA_COMPILER_ID STREQUAL "NVIDIA")
+  # Remove the CUDA Toolkit include directories from the set of
+  # implicit system include directories.
+  # This resolves the issue that NVCC doesn't specify these
+  # includes as SYSTEM includes when compiling device code, and sometimes
+  # they contain headers that generate warnings, so let users mark them
+  # as SYSTEM explicitly
+  if(CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES)
+    list(REMOVE_ITEM CMAKE_CUDA_IMPLICIT_INCLUDE_DIRECTORIES
+      ${CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES}
+      )
   endif()
-
-  # Re-configure to save learned information.
-  configure_file(
-    ${CMAKE_ROOT}/Modules/CMakeCUDACompiler.cmake.in
-    ${CMAKE_PLATFORM_INFO_DIR}/CMakeCUDACompiler.cmake
-    @ONLY
-    )
-  include(${CMAKE_PLATFORM_INFO_DIR}/CMakeCUDACompiler.cmake)
 endif()
 
+# Re-configure to save learned information.
+configure_file(
+  ${CMAKE_ROOT}/Modules/CMakeCUDACompiler.cmake.in
+  ${CMAKE_PLATFORM_INFO_DIR}/CMakeCUDACompiler.cmake
+  @ONLY
+  )
+include(${CMAKE_PLATFORM_INFO_DIR}/CMakeCUDACompiler.cmake)
 
 unset(__CMAKE_CUDA_COMPILER_OUTPUT)

Modules/CMakeTestCXXCompiler.cmake

@@ -21,6 +21,15 @@ endif()
 # We now store this in CMakeCXXCompiler.cmake.
 unset(CMAKE_CXX_COMPILER_WORKS CACHE)
 
+# Try to identify the ABI and configure it into CMakeCXXCompiler.cmake
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
+CMAKE_DETERMINE_COMPILER_ABI(CXX ${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp)
+if(CMAKE_CXX_ABI_COMPILED)
+  # The compiler worked so skip dedicated test below.
+  set(CMAKE_CXX_COMPILER_WORKS TRUE)
+  message(STATUS "Check for working CXX compiler: ${CMAKE_CXX_COMPILER} - skipped")
+endif()
+
 # This file is used by EnableLanguage in cmGlobalGenerator to
 # determine that the selected C++ compiler can actually compile
 # and link the most basic of programs.   If not, a fatal error
@@ -40,49 +49,41 @@ if(NOT CMAKE_CXX_COMPILER_WORKS)
   # Move result from cache to normal variable.
   set(CMAKE_CXX_COMPILER_WORKS ${CMAKE_CXX_COMPILER_WORKS})
   unset(CMAKE_CXX_COMPILER_WORKS CACHE)
-  set(CXX_TEST_WAS_RUN 1)
   __TestCompiler_restoreTryCompileTargetType()
-endif()
-
-if(NOT CMAKE_CXX_COMPILER_WORKS)
-  PrintTestCompilerResult(CHECK_FAIL "broken")
-  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
-    "Determining if the CXX compiler works failed with "
-    "the following output:\n${__CMAKE_CXX_COMPILER_OUTPUT}\n\n")
-  string(REPLACE "\n" "\n  " _output "${__CMAKE_CXX_COMPILER_OUTPUT}")
-  message(FATAL_ERROR "The C++ compiler\n  \"${CMAKE_CXX_COMPILER}\"\n"
-    "is not able to compile a simple test program.\nIt fails "
-    "with the following output:\n  ${_output}\n\n"
-    "CMake will not be able to correctly generate this project.")
-else()
-  if(CXX_TEST_WAS_RUN)
-    PrintTestCompilerResult(CHECK_PASS "works")
-    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
-      "Determining if the CXX compiler works passed with "
+  if(NOT CMAKE_CXX_COMPILER_WORKS)
+    PrintTestCompilerResult(CHECK_FAIL "broken")
+    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+      "Determining if the CXX compiler works failed with "
       "the following output:\n${__CMAKE_CXX_COMPILER_OUTPUT}\n\n")
+    string(REPLACE "\n" "\n  " _output "${__CMAKE_CXX_COMPILER_OUTPUT}")
+    message(FATAL_ERROR "The C++ compiler\n  \"${CMAKE_CXX_COMPILER}\"\n"
+      "is not able to compile a simple test program.\nIt fails "
+      "with the following output:\n  ${_output}\n\n"
+      "CMake will not be able to correctly generate this project.")
   endif()
+  PrintTestCompilerResult(CHECK_PASS "works")
+  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+    "Determining if the CXX compiler works passed with "
+    "the following output:\n${__CMAKE_CXX_COMPILER_OUTPUT}\n\n")
+endif()
 
-  # Try to identify the ABI and configure it into CMakeCXXCompiler.cmake
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
-  CMAKE_DETERMINE_COMPILER_ABI(CXX ${CMAKE_ROOT}/Modules/CMakeCXXCompilerABI.cpp)
-  # Try to identify the compiler features
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
-  CMAKE_DETERMINE_COMPILE_FEATURES(CXX)
+# Try to identify the compiler features
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
+CMAKE_DETERMINE_COMPILE_FEATURES(CXX)
 
-  # Re-configure to save learned information.
-  configure_file(
-    ${CMAKE_ROOT}/Modules/CMakeCXXCompiler.cmake.in
-    ${CMAKE_PLATFORM_INFO_DIR}/CMakeCXXCompiler.cmake
-    @ONLY
-    )
-  include(${CMAKE_PLATFORM_INFO_DIR}/CMakeCXXCompiler.cmake)
+# Re-configure to save learned information.
+configure_file(
+  ${CMAKE_ROOT}/Modules/CMakeCXXCompiler.cmake.in
+  ${CMAKE_PLATFORM_INFO_DIR}/CMakeCXXCompiler.cmake
+  @ONLY
+  )
+include(${CMAKE_PLATFORM_INFO_DIR}/CMakeCXXCompiler.cmake)
 
-  if(CMAKE_CXX_SIZEOF_DATA_PTR)
-    foreach(f ${CMAKE_CXX_ABI_FILES})
-      include(${f})
-    endforeach()
-    unset(CMAKE_CXX_ABI_FILES)
-  endif()
+if(CMAKE_CXX_SIZEOF_DATA_PTR)
+  foreach(f ${CMAKE_CXX_ABI_FILES})
+    include(${f})
+  endforeach()
+  unset(CMAKE_CXX_ABI_FILES)
 endif()
 
 set(CMAKE_TRY_COMPILE_TARGET_TYPE ${__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE})

Modules/CMakeTestFortranCompiler.cmake

@@ -15,6 +15,15 @@ include(CMakeTestCompilerCommon)
 # We now store this in CMakeFortranCompiler.cmake.
 unset(CMAKE_Fortran_COMPILER_WORKS CACHE)
 
+# Try to identify the ABI and configure it into CMakeFortranCompiler.cmake
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
+CMAKE_DETERMINE_COMPILER_ABI(Fortran ${CMAKE_ROOT}/Modules/CMakeFortranCompilerABI.F)
+if(CMAKE_Fortran_ABI_COMPILED)
+  # The compiler worked so skip dedicated test below.
+  set(CMAKE_Fortran_COMPILER_WORKS TRUE)
+  message(STATUS "Check for working Fortran compiler: ${CMAKE_Fortran_COMPILER} - skipped")
+endif()
+
 # This file is used by EnableLanguage in cmGlobalGenerator to
 # determine that the selected Fortran compiler can actually compile
 # and link the most basic of programs.   If not, a fatal error
@@ -33,70 +42,61 @@ if(NOT CMAKE_Fortran_COMPILER_WORKS)
   # Move result from cache to normal variable.
   set(CMAKE_Fortran_COMPILER_WORKS ${CMAKE_Fortran_COMPILER_WORKS})
   unset(CMAKE_Fortran_COMPILER_WORKS CACHE)
-  set(FORTRAN_TEST_WAS_RUN 1)
-endif()
-
-if(NOT CMAKE_Fortran_COMPILER_WORKS)
-  PrintTestCompilerResult(CHECK_FAIL "broken")
-  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
-    "Determining if the Fortran compiler works failed with "
-    "the following output:\n${OUTPUT}\n\n")
-  string(REPLACE "\n" "\n  " _output "${OUTPUT}")
-  message(FATAL_ERROR "The Fortran compiler\n  \"${CMAKE_Fortran_COMPILER}\"\n"
-    "is not able to compile a simple test program.\nIt fails "
-    "with the following output:\n  ${_output}\n\n"
-    "CMake will not be able to correctly generate this project.")
-else()
-  if(FORTRAN_TEST_WAS_RUN)
-    PrintTestCompilerResult(CHECK_PASS "works")
-    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
-      "Determining if the Fortran compiler works passed with "
+  if(NOT CMAKE_Fortran_COMPILER_WORKS)
+    PrintTestCompilerResult(CHECK_FAIL "broken")
+    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+      "Determining if the Fortran compiler works failed with "
       "the following output:\n${OUTPUT}\n\n")
+    string(REPLACE "\n" "\n  " _output "${OUTPUT}")
+    message(FATAL_ERROR "The Fortran compiler\n  \"${CMAKE_Fortran_COMPILER}\"\n"
+      "is not able to compile a simple test program.\nIt fails "
+      "with the following output:\n  ${_output}\n\n"
+      "CMake will not be able to correctly generate this project.")
   endif()
+  PrintTestCompilerResult(CHECK_PASS "works")
+  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+    "Determining if the Fortran compiler works passed with "
+    "the following output:\n${OUTPUT}\n\n")
+endif()
 
-  # Try to identify the ABI and configure it into CMakeFortranCompiler.cmake
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
-  CMAKE_DETERMINE_COMPILER_ABI(Fortran ${CMAKE_ROOT}/Modules/CMakeFortranCompilerABI.F)
-
-  # Test for Fortran 90 support by using an f90-specific construct.
-  if(NOT DEFINED CMAKE_Fortran_COMPILER_SUPPORTS_F90)
-    message(CHECK_START "Checking whether ${CMAKE_Fortran_COMPILER} supports Fortran 90")
-    file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompilerF90.f90 "
-      PROGRAM TESTFortran90
-      integer stop ; stop = 1 ; do while ( stop .eq. 0 ) ; end do
-      END PROGRAM TESTFortran90
+# Test for Fortran 90 support by using an f90-specific construct.
+if(NOT DEFINED CMAKE_Fortran_COMPILER_SUPPORTS_F90)
+  message(CHECK_START "Checking whether ${CMAKE_Fortran_COMPILER} supports Fortran 90")
+  file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompilerF90.f90 "
+    PROGRAM TESTFortran90
+    integer stop ; stop = 1 ; do while ( stop .eq. 0 ) ; end do
+    END PROGRAM TESTFortran90
 ")
-    try_compile(CMAKE_Fortran_COMPILER_SUPPORTS_F90 ${CMAKE_BINARY_DIR}
-      ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompilerF90.f90
-      OUTPUT_VARIABLE OUTPUT)
-    if(CMAKE_Fortran_COMPILER_SUPPORTS_F90)
-      message(CHECK_PASS "yes")
-      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
-        "Determining if the Fortran compiler supports Fortran 90 passed with "
-        "the following output:\n${OUTPUT}\n\n")
-      set(CMAKE_Fortran_COMPILER_SUPPORTS_F90 1)
-    else()
-      message(CHECK_FAIL "no")
-      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
-        "Determining if the Fortran compiler supports Fortran 90 failed with "
-        "the following output:\n${OUTPUT}\n\n")
-      set(CMAKE_Fortran_COMPILER_SUPPORTS_F90 0)
-    endif()
-    unset(CMAKE_Fortran_COMPILER_SUPPORTS_F90 CACHE)
+  try_compile(CMAKE_Fortran_COMPILER_SUPPORTS_F90 ${CMAKE_BINARY_DIR}
+    ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testFortranCompilerF90.f90
+    OUTPUT_VARIABLE OUTPUT)
+  if(CMAKE_Fortran_COMPILER_SUPPORTS_F90)
+    message(CHECK_PASS "yes")
+    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+      "Determining if the Fortran compiler supports Fortran 90 passed with "
+      "the following output:\n${OUTPUT}\n\n")
+    set(CMAKE_Fortran_COMPILER_SUPPORTS_F90 1)
+  else()
+    message(CHECK_FAIL "no")
+    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+      "Determining if the Fortran compiler supports Fortran 90 failed with "
+      "the following output:\n${OUTPUT}\n\n")
+    set(CMAKE_Fortran_COMPILER_SUPPORTS_F90 0)
   endif()
+  unset(CMAKE_Fortran_COMPILER_SUPPORTS_F90 CACHE)
+endif()
 
-  # Re-configure to save learned information.
-  configure_file(
-    ${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
-    ${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake
-    @ONLY
-    )
-  include(${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake)
+# Re-configure to save learned information.
+configure_file(
+  ${CMAKE_ROOT}/Modules/CMakeFortranCompiler.cmake.in
+  ${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake
+  @ONLY
+  )
+include(${CMAKE_PLATFORM_INFO_DIR}/CMakeFortranCompiler.cmake)
 
-  if(CMAKE_Fortran_SIZEOF_DATA_PTR)
-    foreach(f ${CMAKE_Fortran_ABI_FILES})
-      include(${f})
-    endforeach()
-    unset(CMAKE_Fortran_ABI_FILES)
-  endif()
+if(CMAKE_Fortran_SIZEOF_DATA_PTR)
+  foreach(f ${CMAKE_Fortran_ABI_FILES})
+    include(${f})
+  endforeach()
+  unset(CMAKE_Fortran_ABI_FILES)
 endif()

Modules/CMakeTestOBJCCompiler.cmake

@@ -21,6 +21,15 @@ endif()
 # We now store this in CMakeCCompiler.cmake.
 unset(CMAKE_OBJC_COMPILER_WORKS CACHE)
 
+# Try to identify the ABI and configure it into CMakeOBJCCompiler.cmake
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
+CMAKE_DETERMINE_COMPILER_ABI(OBJC ${CMAKE_ROOT}/Modules/CMakeOBJCCompilerABI.m)
+if(CMAKE_OBJC_ABI_COMPILED)
+  # The compiler worked so skip dedicated test below.
+  set(CMAKE_OBJC_COMPILER_WORKS TRUE)
+  message(STATUS "Check for working OBJC compiler: ${CMAKE_OBJC_COMPILER} - skipped")
+endif()
+
 # This file is used by EnableLanguage in cmGlobalGenerator to
 # determine that that selected Objective-C compiler can actually compile
 # and link the most basic of programs.   If not, a fatal error
@@ -44,49 +53,41 @@ if(NOT CMAKE_OBJC_COMPILER_WORKS)
   # Move result from cache to normal variable.
   set(CMAKE_OBJC_COMPILER_WORKS ${CMAKE_OBJC_COMPILER_WORKS})
   unset(CMAKE_OBJC_COMPILER_WORKS CACHE)
-  set(OBJC_TEST_WAS_RUN 1)
   __TestCompiler_restoreTryCompileTargetType()
-endif()
-
-if(NOT CMAKE_OBJC_COMPILER_WORKS)
-  PrintTestCompilerResult(CHECK_FAIL "broken")
-  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
-    "Determining if the Objective-C compiler works failed with "
-    "the following output:\n${__CMAKE_OBJC_COMPILER_OUTPUT}\n\n")
-  string(REPLACE "\n" "\n  " _output "${__CMAKE_OBJC_COMPILER_OUTPUT}")
-  message(FATAL_ERROR "The Objective-C compiler\n  \"${CMAKE_OBJC_COMPILER}\"\n"
-    "is not able to compile a simple test program.\nIt fails "
-    "with the following output:\n  ${_output}\n\n"
-    "CMake will not be able to correctly generate this project.")
-else()
-  if(OBJC_TEST_WAS_RUN)
-    PrintTestCompilerResult(CHECK_PASS "works")
-    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
-      "Determining if the Objective-C compiler works passed with "
+  if(NOT CMAKE_OBJC_COMPILER_WORKS)
+    PrintTestCompilerResult(CHECK_FAIL "broken")
+    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+      "Determining if the Objective-C compiler works failed with "
       "the following output:\n${__CMAKE_OBJC_COMPILER_OUTPUT}\n\n")
+    string(REPLACE "\n" "\n  " _output "${__CMAKE_OBJC_COMPILER_OUTPUT}")
+    message(FATAL_ERROR "The Objective-C compiler\n  \"${CMAKE_OBJC_COMPILER}\"\n"
+      "is not able to compile a simple test program.\nIt fails "
+      "with the following output:\n  ${_output}\n\n"
+      "CMake will not be able to correctly generate this project.")
   endif()
+  PrintTestCompilerResult(CHECK_PASS "works")
+  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+    "Determining if the Objective-C compiler works passed with "
+    "the following output:\n${__CMAKE_OBJC_COMPILER_OUTPUT}\n\n")
+endif()
 
-  # Try to identify the ABI and configure it into CMakeOBJCCompiler.cmake
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
-  CMAKE_DETERMINE_COMPILER_ABI(OBJC ${CMAKE_ROOT}/Modules/CMakeOBJCCompilerABI.m)
-  # Try to identify the compiler features
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
-  CMAKE_DETERMINE_COMPILE_FEATURES(OBJC)
+# Try to identify the compiler features
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
+CMAKE_DETERMINE_COMPILE_FEATURES(OBJC)
 
-  # Re-configure to save learned information.
-  configure_file(
-    ${CMAKE_ROOT}/Modules/CMakeOBJCCompiler.cmake.in
-    ${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCCompiler.cmake
-    @ONLY
-    )
-  include(${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCCompiler.cmake)
+# Re-configure to save learned information.
+configure_file(
+  ${CMAKE_ROOT}/Modules/CMakeOBJCCompiler.cmake.in
+  ${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCCompiler.cmake
+  @ONLY
+  )
+include(${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCCompiler.cmake)
 
-  if(CMAKE_OBJC_SIZEOF_DATA_PTR)
-    foreach(f ${CMAKE_OBJC_ABI_FILES})
-      include(${f})
-    endforeach()
-    unset(CMAKE_OBJC_ABI_FILES)
-  endif()
+if(CMAKE_OBJC_SIZEOF_DATA_PTR)
+  foreach(f ${CMAKE_OBJC_ABI_FILES})
+    include(${f})
+  endforeach()
+  unset(CMAKE_OBJC_ABI_FILES)
 endif()
 
 set(CMAKE_TRY_COMPILE_TARGET_TYPE ${__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE})

Modules/CMakeTestOBJCXXCompiler.cmake

@@ -21,6 +21,15 @@ endif()
 # We now store this in CMakeOBJCXXCompiler.cmake.
 unset(CMAKE_OBJCXX_COMPILER_WORKS CACHE)
 
+# Try to identify the ABI and configure it into CMakeOBJCXXCompiler.cmake
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
+CMAKE_DETERMINE_COMPILER_ABI(OBJCXX ${CMAKE_ROOT}/Modules/CMakeOBJCXXCompilerABI.mm)
+if(CMAKE_OBJCXX_ABI_COMPILED)
+  # The compiler worked so skip dedicated test below.
+  set(CMAKE_OBJCXX_COMPILER_WORKS TRUE)
+  message(STATUS "Check for working OBJCXX compiler: ${CMAKE_OBJCXX_COMPILER} - skipped")
+endif()
+
 # This file is used by EnableLanguage in cmGlobalGenerator to
 # determine that the selected Objective-C++ compiler can actually compile
 # and link the most basic of programs.   If not, a fatal error
@@ -43,49 +52,41 @@ if(NOT CMAKE_OBJCXX_COMPILER_WORKS)
   # Move result from cache to normal variable.
   set(CMAKE_OBJCXX_COMPILER_WORKS ${CMAKE_OBJCXX_COMPILER_WORKS})
   unset(CMAKE_OBJCXX_COMPILER_WORKS CACHE)
-  set(OBJCXX_TEST_WAS_RUN 1)
   __TestCompiler_restoreTryCompileTargetType()
-endif()
-
-if(NOT CMAKE_OBJCXX_COMPILER_WORKS)
-  PrintTestCompilerResult(CHECK_FAIL "broken")
-  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
-    "Determining if the Objective-C++ compiler works failed with "
-    "the following output:\n${__CMAKE_OBJCXX_COMPILER_OUTPUT}\n\n")
-  string(REPLACE "\n" "\n  " _output "${__CMAKE_OBJCXX_COMPILER_OUTPUT}")
-  message(FATAL_ERROR "The Objective-C++ compiler\n  \"${CMAKE_OBJCXX_COMPILER}\"\n"
-    "is not able to compile a simple test program.\nIt fails "
-    "with the following output:\n  ${_output}\n\n"
-    "CMake will not be able to correctly generate this project.")
-else()
-  if(OBJCXX_TEST_WAS_RUN)
-    PrintTestCompilerResult(CHECK_PASS "works")
-    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
-      "Determining if the Objective-C++ compiler works passed with "
+  if(NOT CMAKE_OBJCXX_COMPILER_WORKS)
+    PrintTestCompilerResult(CHECK_FAIL "broken")
+    file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+      "Determining if the Objective-C++ compiler works failed with "
       "the following output:\n${__CMAKE_OBJCXX_COMPILER_OUTPUT}\n\n")
+    string(REPLACE "\n" "\n  " _output "${__CMAKE_OBJCXX_COMPILER_OUTPUT}")
+    message(FATAL_ERROR "The Objective-C++ compiler\n  \"${CMAKE_OBJCXX_COMPILER}\"\n"
+      "is not able to compile a simple test program.\nIt fails "
+      "with the following output:\n  ${_output}\n\n"
+      "CMake will not be able to correctly generate this project.")
   endif()
+  PrintTestCompilerResult(CHECK_PASS "works")
+  file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+    "Determining if the Objective-C++ compiler works passed with "
+    "the following output:\n${__CMAKE_OBJCXX_COMPILER_OUTPUT}\n\n")
+endif()
 
-  # Try to identify the ABI and configure it into CMakeOBJCXXCompiler.cmake
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
-  CMAKE_DETERMINE_COMPILER_ABI(OBJCXX ${CMAKE_ROOT}/Modules/CMakeOBJCXXCompilerABI.mm)
-  # Try to identify the compiler features
-  include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
-  CMAKE_DETERMINE_COMPILE_FEATURES(OBJCXX)
+# Try to identify the compiler features
+include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
+CMAKE_DETERMINE_COMPILE_FEATURES(OBJCXX)
 
-  # Re-configure to save learned information.
-  configure_file(
-    ${CMAKE_ROOT}/Modules/CMakeOBJCXXCompiler.cmake.in
-    ${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCXXCompiler.cmake
-    @ONLY
-    )
-  include(${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCXXCompiler.cmake)
+# Re-configure to save learned information.
+configure_file(
+  ${CMAKE_ROOT}/Modules/CMakeOBJCXXCompiler.cmake.in
+  ${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCXXCompiler.cmake
+  @ONLY
+  )
+include(${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCXXCompiler.cmake)
 
-  if(CMAKE_OBJCXX_SIZEOF_DATA_PTR)
-    foreach(f ${CMAKE_OBJCXX_ABI_FILES})
-      include(${f})
-    endforeach()
-    unset(CMAKE_OBJCXX_ABI_FILES)
-  endif()
+if(CMAKE_OBJCXX_SIZEOF_DATA_PTR)
+  foreach(f ${CMAKE_OBJCXX_ABI_FILES})
+    include(${f})
+  endforeach()
+  unset(CMAKE_OBJCXX_ABI_FILES)
 endif()
 
 set(CMAKE_TRY_COMPILE_TARGET_TYPE ${__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE})