- Cmake-modules - CMake Modules Reference. Man pages section 7: Standards, Environments, Macros, Character Sets, and Miscellany.
- Without more information, I would just remove any usage of the macro and add documentation about how to set the compiler to the build instructions.
Hello, When running cmake it will try to find a suitable compiler and try to see if it can program a simple program with it. Can someone verify that if you specify a variable from the.
Cmake_force_c_compiler Example
Hello,
Cmake fails in the configuration stage with the following messages when I tried to compile with the iOS toolchain and Xcode generator.
Check size of unsigned long - failed
CMake Error at /Applications/CMake.app/Contents/share/cmake-3.15/Modules/TestBigEndian.cmake:50 (message):
no suitable type found
Call Stack (most recent call first):
CMakeLists.txt:54 (TEST_BIG_ENDIAN)
CMake Error at /Applications/CMake.app/Contents/share/cmake-3.15/Modules/TestBigEndian.cmake:50 (message):
no suitable type found
Call Stack (most recent call first):
CMakeLists.txt:54 (TEST_BIG_ENDIAN)
This is preceded by this message
Check size of unsigned int - failed
Check size of unsigned long
CMake Deprecation Warning at /Applications/CMake.app/Contents/share/cmake-3.15/Modules/CMakeForceCompiler.cmake:75 (message):
The CMAKE_FORCE_C_COMPILER macro is deprecated. Instead just set
CMAKE_C_COMPILER and allow CMake to identify the compiler.
Call Stack (most recent call first):
/Users/mac/dev/ios-cmake/toolchain/iOS.cmake:40 (CMAKE_FORCE_C_COMPILER)
/Users/mac/dev/xcode/byview/CMakeFiles/3.15.5/CMakeSystem.cmake:6 (include)
/Users/mac/dev/xcode/byview/CMakeFiles/CMakeTmp/CMakeLists.txt:3 (project)
Check size of unsigned long
CMake Deprecation Warning at /Applications/CMake.app/Contents/share/cmake-3.15/Modules/CMakeForceCompiler.cmake:75 (message):
The CMAKE_FORCE_C_COMPILER macro is deprecated. Instead just set
CMAKE_C_COMPILER and allow CMake to identify the compiler.
Call Stack (most recent call first):
/Users/mac/dev/ios-cmake/toolchain/iOS.cmake:40 (CMAKE_FORCE_C_COMPILER)
/Users/mac/dev/xcode/byview/CMakeFiles/3.15.5/CMakeSystem.cmake:6 (include)
/Users/mac/dev/xcode/byview/CMakeFiles/CMakeTmp/CMakeLists.txt:3 (project)
Visual studio code sql. When I tried to generate yet, I get this
Check if the system is big endian
Searching 16 bit integer
CMake Error at /Applications/CMake.app/Contents/share/cmake-3.15/Modules/TestBigEndian.cmake:50 (message):
no suitable type found
Call Stack (most recent call first):
CMakeLists.txt:54 (TEST_BIG_ENDIAN)
Searching 16 bit integer
CMake Error at /Applications/CMake.app/Contents/share/cmake-3.15/Modules/TestBigEndian.cmake:50 (message):
no suitable type found
Call Stack (most recent call first):
CMakeLists.txt:54 (TEST_BIG_ENDIAN)
Thank you for your help in advance
Oleg
Oleg
Contents
Try building some code.
Try building a project. The success or failure of the
try_compile
,i.e. TRUE
or FALSE
respectively, is returned in <resultVar>
.New in version 3.14: The name of the
<resultVar>
is defined by the user. Previously, it hada fixed name RESULT_VAR
.In this form,
<srcdir>
should contain a complete CMake project with aCMakeLists.txt
file and all sources. The <bindir>
and <srcdir>
will not be deleted after this command is run. Specify <targetName>
tobuild a specific target instead of the all
or ALL_BUILD
target. Seebelow for the meaning of other options.Try building an executable or static library from one or more source files(which one is determined by the
CMAKE_TRY_COMPILE_TARGET_TYPE
variable). The success or failure of the try_compile
, i.e. TRUE
orFALSE
respectively, is returned in <resultVar>
.New in version 3.14: The name of the
<resultVar>
is defined by the user. Previously, it hada fixed name RESULT_VAR
.In this form, one or more source files must be provided. If
CMAKE_TRY_COMPILE_TARGET_TYPE
is unset or is set to EXECUTABLE
,the sources must include a definition for main
and CMake will create aCMakeLists.txt
file to build the source(s) as an executable.If CMAKE_TRY_COMPILE_TARGET_TYPE
is set to STATIC_LIBRARY
,a static library will be built instead and no definition for main
isrequired. For an executable, the generated CMakeLists.txt
file wouldcontain something like the following:The options are:
CMAKE_FLAGS<flags>..
Specify flags of the form
-DVAR:TYPE=VALUE
to be passed tothe cmake
command-line used to drive the test build.The above example shows how values for variablesINCLUDE_DIRECTORIES
, LINK_DIRECTORIES
, and LINK_LIBRARIES
are used.COMPILE_DEFINITIONS<defs>..
Specify
-Ddefinition
arguments to pass to add_definitions()
in the generated test project.COPY_FILE<fileName>
Copy the built executable or static library to the given
<fileName>
.COPY_FILE_ERROR<var>
Use after
COPY_FILE
to capture into variable <var>
any errormessage encountered while trying to copy the file.LINK_LIBRARIES<libs>..
Specify libraries to be linked in the generated project.The list of libraries may refer to system libraries and toImported Targets from the calling project.
If this option is specified, any
-DLINK_LIBRARIES=..
valuegiven to the CMAKE_FLAGS
option will be ignored.LINK_OPTIONS<options>..
New in version 3.14. Surfshark mod vpn.
Specify link step options to pass to
target_link_options()
or toset the STATIC_LIBRARY_OPTIONS
target property in the generatedproject, depending on the CMAKE_TRY_COMPILE_TARGET_TYPE
variable.Cmake Compiler Check
OUTPUT_VARIABLE<var>
Store the output from the build process in the given variable.
<LANG>_STANDARD<std>
Specify the
C_STANDARD
, CXX_STANDARD
,OBJC_STANDARD
, OBJCXX_STANDARD
,or CUDA_STANDARD
target property of the generated project.<LANG>_STANDARD_REQUIRED<bool>
New in version 3.8.
Specify the
C_STANDARD_REQUIRED
,CXX_STANDARD_REQUIRED
, OBJC_STANDARD_REQUIRED
,OBJCXX_STANDARD_REQUIRED
,or CUDA_STANDARD_REQUIRED
target property of the generated project.<LANG>_EXTENSIONS<bool>
Specify the
C_EXTENSIONS
, CXX_EXTENSIONS
,OBJC_EXTENSIONS
, OBJCXX_EXTENSIONS
,or CUDA_EXTENSIONS
target property of the generated project.In this version all files in
<bindir>/CMakeFiles/CMakeTmp
will becleaned automatically. For debugging, --debug-trycompile
can bepassed to cmake
to avoid this clean. However, multiple sequentialtry_compile
operations reuse this single output directory. If you use--debug-trycompile
, you can only debug one try_compile
call at a time.The recommended procedure is to protect all try_compile
calls in yourproject by if(NOTDEFINED<resultVar>)
logic, configure with cmakeall the way through once, then delete the cache entry associated withthe try_compile call of interest, and then re-run cmake again with--debug-trycompile
.New in version 3.4: If set, the following variables are passed in to the generatedtry_compile CMakeLists.txt to initialize compile target properties withdefault values:
CMAKE_CUDA_RUNTIME_LIBRARY
CMAKE_ENABLE_EXPORTS
CMAKE_LINK_SEARCH_START_STATIC
CMAKE_LINK_SEARCH_END_STATIC
CMAKE_MSVC_RUNTIME_LIBRARY
CMAKE_POSITION_INDEPENDENT_CODE
If
CMP0056
is set to NEW
, thenCMAKE_EXE_LINKER_FLAGS
is passed in as well.Changed in version 3.14: If
CMP0083
is set to NEW
, then in order to obtain correctbehavior at link time, the check_pie_supported()
command from theCheckPIESupported
module must be called before using thetry_compile()
command.Cmake Select Compiler
The current settings of
CMP0065
and CMP0083
are propagatedthrough to the generated test project.Set the
CMAKE_TRY_COMPILE_CONFIGURATION
variable to choosea build configuration.New in version 3.6: Set the
CMAKE_TRY_COMPILE_TARGET_TYPE
variable to specifythe type of target used for the source file signature.New in version 3.6: Set the
CMAKE_TRY_COMPILE_PLATFORM_VARIABLES
variable to specifyvariables that must be propagated into the test project. This variable ismeant for use only in toolchain files and is only honored by thetry_compile()
command for the source files form, not when given a wholeproject.Changed in version 3.8: If
CMP0067
is set to NEW
, or any of the <LANG>_STANDARD
,<LANG>_STANDARD_REQUIRED
, or <LANG>_EXTENSIONS
options are used,then the language standard variables are honored:CMAKE_C_STANDARD
CMAKE_C_STANDARD_REQUIRED
CMAKE_C_EXTENSIONS
CMAKE_CXX_STANDARD
CMAKE_CXX_STANDARD_REQUIRED
CMAKE_CXX_EXTENSIONS
CMAKE_OBJC_STANDARD
CMAKE_OBJC_STANDARD_REQUIRED
CMAKE_OBJC_EXTENSIONS
CMAKE_OBJCXX_STANDARD
CMAKE_OBJCXX_STANDARD_REQUIRED
CMAKE_OBJCXX_EXTENSIONS
CMAKE_CUDA_STANDARD
CMAKE_CUDA_STANDARD_REQUIRED
CMAKE_CUDA_EXTENSIONS
Their values are used to set the corresponding target properties inthe generated project (unless overridden by an explicit option).
Changed in version 3.14: For the
GreenHillsMULTI
generator the GHS toolset and targetsystem customization cache variables are also propagated into the test project.