Commit Graph

62 Commits

Author SHA1 Message Date
Brad King 30983ebec1 cmGlobalGenerator: Take Build output argument by reference
No call sites pass NULL to the output argument, so take it by
reference to avoid the if(output) conditions.  Propagate the
change through the TryCompile APIs that call it.
2014-07-31 12:49:51 -04:00
Stephen Kelly af8a1643c1 Remove c_str calls when using stream APIs.
Use an ad-hoc clang tool for matching the calls which should be
ported.
2014-03-11 15:03:50 +01:00
Stephen Kelly 21c573f682 Remove some c_str() calls.
Use the clang RemoveCStrCalls tool to automatically migrate the
code. This was only run on linux, so does not have any positive or
negative effect on other platforms.
2014-03-11 15:03:50 +01:00
Ben Boeckel 84fdc9921c stringapi: Pass configuration names as strings 2014-03-08 13:05:36 -05:00
Ben Boeckel 270eb96df0 strings: Remove cmStdString references
Casts from std::string -> cmStdString were high on the list of things
taking up time. Avoid such implicit casts across function calls by just
using std::string everywhere.

The comment that the symbol name is too long is no longer relevant since
modern debuggers alias the templates anyways and the size is a
non-issue since the underlying methods are generated since it's
inherited.
2014-03-08 13:05:35 -05:00
Ben Boeckel fabf1fbabb stringapi: Use strings in target name 2014-03-08 13:05:31 -05:00
Ben Boeckel ce5114354c stringapi: Use strings for the languages 2014-03-08 13:05:30 -05:00
Brad King 7b1f966a6c Windows: Make file delete/rename retry configurable
Several CMake operations need to replace files in rapid succession.
This commonly fails on Windows due to filesystem lock behavior so
we have retry loops.  No matter how many times we retry or how long
we delay there will inevitably be someone with an environment that
needs more.  Make the retry count and delay configurable in the
Windows Registry keys:

 {HKCU,HKLM}/Software/Kitware/CMake/Config

in DWORD values

 FilesystemRetryCount = Number of tries
 FilesystemRetryDelay = Delay in milliseconds between tries

Leave the feature undocumented for now to see how it goes.
2014-02-12 09:55:41 -05:00
Rolf Eike Beer c768e398f9 cmMakefile: make some methods take const std::string& instead of const char*
Most callers already have a std::string, on which they called c_str() to pass it
into these methods, which internally converted it back to std::string. Pass a
std::string directly to these methods now, avoiding all these conversions.
Those methods that only pass in a const char* will get the conversion to
std::string now only once.
2014-01-16 09:28:29 -05:00
Clinton Stimpson 5730710c86 Use cmsys::[io]fstream instead of cmsys_ios::[io]fstream.
Also use SystemTools::Fopen() instead of fopen().
This is to eventually support utf-8 filenames.
2014-01-07 09:27:44 -05:00
Stephen Kelly 7cd65c97fa Add CMAKE_SYSROOT variable to set --sysroot when cross compiling.
As CMAKE_ROOT_FIND_PATH can be a list, a new CMAKE_SYSROOT is
introduced, which is never a list.

The contents of this variable is passed to supporting compilers
as --sysroot. It is also accounted for when processing implicit
link directories reported by the compiler, and when generating
RPATH information.
2013-11-19 12:39:39 -05:00
Stephen Kelly 5096967ecd Allow toolchain files to specify an external toolchain.
Clang can compile code, but uses the gcc tools for other tasks such
as linking. The -gcc-toolchain option can be used for that, but
generalize so that other compilers can be treated the same.

If such a location is specified, use it as a hint for finding
the binutils executables.
2013-11-19 12:39:34 -05:00
Stephen Kelly 76552d595d Add compiler target compile options.
For clang, this allows passing -target <triple> to the compiler, and
for qcc, -V<arch> using toolchain files containing something like

 set(triple arm-linux-gnueabihf)
 set(CMAKE_C_COMPILER "/usr/bin/clang")
 set(CMAKE_C_COMPILER_TARGET ${triple})
 set(CMAKE_CXX_COMPILER "/usr/bin/clang++")
 set(CMAKE_CXX_COMPILER_TARGET ${triple})

or

 set(arch gcc_ntoarmv7le)
 set(CMAKE_C_COMPILER /opt/qnx650/host/linux/x86/usr/bin/qcc)
 set(CMAKE_C_COMPILER_TARGET ${arch})
 set(CMAKE_CXX_COMPILER /opt/qnx650/host/linux/x86/usr/bin/QCC)
 set(CMAKE_CXX_COMPILER_TARGET ${arch})

Both clang and qcc are inherently cross compiler( driver)s.

When cross-compiling with clang, use the CMAKE_${lang}_COMPILER_TARGET
as the _CMAKE_TOOLCHAIN_PREFIX to find the appropriate binutils.

When cross-compiling with QNX qcc, use the CMAKE_${lang}_COMPILER_TARGET
to set the appropriate _CMAKE_TOOLCHAIN_PREFIX.
2013-11-19 12:38:53 -05:00
Stephen Kelly c4373b33b2 cmTarget: Make GetProperty() const.
This has follow-on effects for other methods and classes. Further
work on making the use of const cmTarget pointers common can be
done, particularly with a view to generate-time methods.
2013-10-31 14:52:11 +01:00
Stephen Kelly 187385a8ed cmCoreTryCompile: Fix typo in comments.
Add 'S' to match actual variable names.
2013-10-20 12:29:15 +02:00
Brad King f8241136b4 Merge topic 'INTERFACE_LIBRARY-target-type'
ce0c303 install: Teach EXPORT option to handle INTERFACE_LIBRARY targets
435c912 export: Add support for INTERFACE_LIBRARY targets
fe73226 Add the INTERFACE_LIBRARY target type.
2013-10-08 10:58:40 -04:00
Stephen Kelly 435c912848 export: Add support for INTERFACE_LIBRARY targets 2013-10-07 20:07:27 -04:00
Stephen Kelly 33055c405e Generate modern-style cmake code.
The commits 9db31162 (Remove CMake-language block-end command
arguments, 2012-08-13) and 77543bde (Convert CMake-language
commands to lower case, 2012-08-13) changed most cmake code
to use lowercase commands and no parameters in termination
commands. However, those changes excluded cmake code generated
in c++ by cmake.

Make a similar style change to code generated by cmake.
2013-08-22 12:06:58 +02:00
Brad King f6024ef420 Merge topic 'try_compile-COPY_FILE_ERROR'
c28715b try_compile: Add COPY_FILE_ERROR option to capture failure
2013-07-15 09:33:32 -04:00
Brad King c28715b16c try_compile: Add COPY_FILE_ERROR option to capture failure
When the COPY_FILE operation fails optionally capture the error message
with a COPY_FILE_ERROR option instead of reporting the error
immediately.  This gives callers a chance to do something else or report
the error.

Teach the RunCMake.try_compile test to cover bad argument combinations
involving COPY_FILE_ERROR.  Teach the TryCompile test to cover the case
of a COPY_FILE error message captured by COPY_FILE_ERROR.
2013-07-15 09:16:36 -04:00
Brad King 290857bb03 try_compile: Escape CMAKE_<lang>_FLAGS in test projects (#14268)
If CMAKE_<lang>_FLAGS contains quotes or other CMake language characters
they must be escaped when written into the generated CMakeLists.txt file
so that the test project parses them properly.

Teach the TryCompile test to cover this case by adding a flag with
quotes into CMAKE_C_FLAGS during a C language try_compile.
2013-07-15 09:14:56 -04:00
Robert Maynard 6dbd4a5f17 cmMakefile: Refactor AddCMakeDependFile and AddCMakeOutputFile.
AddCMakeDependFile and AddCMakeOutputFile both store as std::string
and all calling sites use std::string. So instead of creating more
temporary objects, lets just use std::strings.
2013-06-24 10:43:20 -04:00
Brad King 482f1122ad try_compile: Add signature to allow multiple SOURCES
Extend the signature

 try_compile(RESULT_VAR <bindir> <srcfile> ...)

to allow multiple sources as

 try_compile(RESULT_VAR <bindir> SOURCES <srcfile>... ...)

Process the sources to generate a CMakeLists.txt that enables all needed
languages.

Teach the TryCompile test to try cases with two sources of the same
language and of mixed languages.  Teach RunCMake.try_compile to cover
error cases for the signature.
2013-06-06 14:35:20 -04:00
Brad King d06db7ebe8 try_compile: Refactor argument processing
Process all arguments in a single loop using a simple state machine.
While at it, fix some error message typos.  Also allow LINK_LIBRARIES
with no actual libraries to disable use of the -DLINK_LIBRARIES=...
from the CMAKE_FLAGS.  This was already possible in the old logic if
LINK_LIBRARIES was immediately followed by another keyword argument
instead of the end of the argument list, so allow it in general.
Update the RunCMake.try_compile test cases accordingly.
2013-05-31 10:01:50 -04:00
Stephen Kelly e5375442ff try_compile: Trim whitespace from LINK_LIBRARIES entries
Commit e65ef08b (try_compile: Fix quoting of libraries in generated
CMakeLists.txt, 2013-05-24) added quoting to entries specified in
the LINK_LIBRARIES. However, if the input entries contain whitespace
padding, that quoted whitespace causes an error in the generated
CMakeLists.txt at target_link_libraries.

Strictly, it is an error to have space separated entries in the
CMAKE_REQUIRED_LIBRARIES, as it was never properly handled by
CMakeExpandImportedTargets even prior to commit 236133e7 (Handle
targets in the LINK_LIBRARIES of try_compile., 2013-02-09). However,
it is causing a regression in KDE code which tests the next branch.
2013-05-30 13:50:37 +02:00
Brad King e65ef08bf2 try_compile: Fix quoting of libraries in generated CMakeLists.txt
Since commit 236133e7 (Handle targets in the LINK_LIBRARIES of
try_compile, 2013-02-09) libraries passed to the new LINK_LIBRARIES
option of try_compile are not quoted inside the generated CMakeLists.txt
file.  Quote the library names so they re-parse correctly when loaded by
CMake to configure and generate the test project.

Reported-by: Bogdan Cristea <cristeab@gmail.com>
2013-05-24 16:30:26 -04:00
Rolf Eike Beer ce441fac07 try_compile: add missing fclose() to recently added error case
In commit 236133e7 (Handle targets in the LINK_LIBRARIES of try_compile,
2013-02-09) an error return case was added without closing the file in
progress.  Add the missing fclose() call.

Spotted by sevenhill.
2013-04-16 08:38:33 -04:00
Stephen Kelly 236133e79e Handle targets in the LINK_LIBRARIES of try_compile.
Imported targets are re-exported so that they can be used by the
try_compile generated code with target_link_libraries.

This makes the use of the cmake_expand_imported_targets macro
obsolete. The macro is not able to expand the generator expressions
which may appear in the IMPORTED_LINK_INTERFACE_LIBRARIES content.
Instead it just sees them as 'not a target'.
2013-02-22 08:35:39 -05:00
Stephen Kelly bd34963002 Refactor generation of shared library flags
CMAKE_SHARED_LIBRARY_<lang>_FLAGS has flags on various platforms for a
variety of purposes that are correlated with shared libraries but not
exclusive to them.  Refactor generation of these flags to use new
purpose-specific platform variables

  CMAKE_<lang>_COMPILE_OPTIONS_DLL
  CMAKE_<lang>_COMPILE_OPTIONS_PIC
  CMAKE_<lang>_COMPILE_OPTIONS_PIE

Activate the DLL flags specifically for shared libraries.  Add a new
POSITION_INDEPENDENT_CODE target property to activate PIC/PIE flags, and
default to true for shared libraries to preserve default behavior.
Initialize the new property from CMAKE_POSITION_INDEPENDENT_CODE to
allow easy global configuration in projects.

Although the default behavior is unchanged by this refactoring, the new
approach ignores CMAKE_SHARED_LIBRARY_<lang>_FLAGS completely.  We must
leave it set in case projects reference the value.  Furthermore, if a
project modifies CMAKE_SHARED_LIBRARY_<lang>_FLAGS it expects the new
value to be used.  Add policy CMP0018 to handle compatibility with
projects that modify this platform variable.

Add a PositionIndependentCode test on platforms where we can get
meaningful results.
2012-06-12 15:38:48 -04:00
Brad King 953257ca61 try_compile: Cleanup temporary directories (#13160)
Since commit 4fbdce2b (try_compile: Use random executable file name,
2012-02-13) a different <target>.dir is used for each try-compile.
Cleanup the directories as well as their content to avoid accumulating
leftover temporary directories.
2012-04-26 08:20:58 -04:00
Yury G. Kudryashov 43d60114a5 Run vim spellcheck on some files 2012-02-29 14:07:50 -05:00
Brad King 4fbdce2b79 try_compile: Use random executable file name (#12957)
Append a random number to the "cmTryCompileExec" file name to avoid
rapid creation and deletion of the same executable file name.  Some
filesystems lock executable files when they are created and cause
subsequent try-compile tests to fail arbitrarily.  Use a different
name each time to avoid conflict.
2012-02-16 10:13:50 -05:00
Alex Neundorf 31f43fdb5a Remove trailing whitespace
Alex
2011-09-15 16:20:33 +02:00
Brad King 182eb7c7ef Merge topic 'dev/strict-mode'
dd2f814 Merge branch 'dev/add_test-working-directory' into dev/strict-mode
949d32c Unwatch manual variables upon removal in cmake-gui
3939032 Unwatch manual variables upon removal in ccmake
8354413 Add method to unwatch a manual variable
8ed3c85 Give a better message for unused variables
729db48 Fix ArgumentExpansion test expected results
89c2544 Checking for a definition is a usage
5625dee Don't output to stderr in the GUI
ad25a96 Merge branch 'ImprovedDotSupport2' into dev/strict-mode
c128abe Merge branch 'AddCMAKE_CURRENT_LIST_DIR' into dev/strict-mode
9bcaff0 Merge branch 'cmake-guiRememberAdvancedCheckbox' into dev/strict-mode
544d0c3 Fix expected output for WarnUninitialized test
4e3bea4 Update expected messages to new format
8e8c9e4 Don't check at destruction for usage
668e005 Use cmake::IssueMessage for warnings
88cd4c1 Use 'CMake Warning' versus 'warning' for CDash
3c3b98d Initialize the class before setting warn flags
cf8b15a Ignore files under the CMakeFiles directory
fd50f06 Don't check for unused vars at configure time
447a04c Don't warn during configure when doing everything
b97ee21 Check for unused variables at the end of generate
c18c977 When checking for variables, specify a reason
3f1121f Use a long int since Line is a long as well
2507f93 Change the failure case string to 'Unexpected'
fe390a2 Add 'ArgumentExpansion' test
8dbb209 Wrong boolean value for CLI warnings
d4ee998 Hard-code the --no-warn-unused-cli flag
a267b99 Fix line lengths
82ed104 Flag that the directories have been set
5aa535b Add argument to arg parsing to not set directories
367e5c3 Revert "Revert "When calling CMake, set the args and the cache""
ab5d4e4 Revert "When calling CMake, set the args and the cache"
9b90040 When calling CMake, set the args and the cache
fe56002 Fix long lines for KWStyle
5d30cfc Set a watch on variables added through the gui
33c63b1 Add a method to put a watch for variables
535253f Initialize the warning variables earlier
cbb286c Fix the path detection to work for top-level
62be1f7 Initialize the usage stack earlier
c6e7fab Factor out the checks for unused variables
5e41ba8 When using the API, check for Add vs. Remove
dee1976 Fix typo in VariableUnusedViaUnset test
f231ce5 Remove old false positive avoidance code
a117e02 Revert "Add test for unused warnings at the end of scope"
2c82f2b Exempt CMAKE(CURRENT|PARENT)_LIST_FILE from usage
6d7d449 Ignore CLI warnings for ABI determination
7740a73 Only return local keys that are defined
bef3aee Use the API so that warnings can be tracked
05cb0f4 Check for unused variables in the dtor
91c4c99 Add test for unused warnings at the end of scope
ca90f67 Fix detection of unused variables when setting
f7438ca Add test for unused detection via setting it
995cfb0 Don't warn if the variable wasn't defined
aefc91d Add test for usage checks via unset
a8e97f8 Remove VarRemoved code since it's been superceded
59463ef Rework CheckVariableForUnused usage
f117423 Fix line lengths to be no more than 78
e49a935 Improve unused warning logic
e01e40c Mark ARGC, ARGV*, and ARGN as used
a17aff7 Ignore CMAKE_MATCH_* variables for usage
02a114d Add method to allow variables to be marked as used
a0b0d23 CMAKE_DO_TRY_COMPILE is no longer used
ae3eff3 Fix the path used for ignoring system warnings
056b441 Fix missing case for usage of a variable
980e048 Factor out checks for unused variables
83acb0a Remove now unused variables
3801463 Use built-ins for readability and maintainability
8b52015 Push the initialize and unused states when copying
439877f Be consistent with single and double quotes
4cf1706 Add documentation for check-system-vars
b74777f Fix the spelling of the flag for warn-unused-vars
b948120 Change logic of flag to turn off cli unused checks
f047a17 Add test for uninitialized variables
75bda38 Add tests for unused command line variables
300fc15 Fix detection of system files
d784e6a Run the unused variables check on the final pass
9efc057 VariableWatch is not available when bootstrapping
2e78224 Add a missing comma to the warning message
7499700 Add a flag to warn about system files
fff9f6d Rename flags again and use variablewatch for cli
786e269 Add warn-unused to the Qt interface
636e6c4 Default to marking things as used
4ff0340 Rename find-unused to warn-unused
d7999e9 Rename strict-mode to warn-uninitialized
e141bc9 Detect unused variables
d3e8eb5 Add flags to detect unused variables
f332e14 Complete strict-mode checks for uninitialized vars
52f9637 Add method to get the local scope variables
f794d58 Make --strict-mode option, and integrate with cmake-gui
48b5b85 Add a warning when variables are used uninitialized.
cd626ea For macros make sure the FilePath points to a valid pointer in the args.
2011-01-27 15:34:07 -05:00
Brad King dd2f81491e Merge branch 'dev/add_test-working-directory' into dev/strict-mode
Conflicts:
	Tests/CMakeLists.txt
2011-01-27 14:39:55 -05:00
Brad King 7f37eac6dd Merge topic 'outdir-CMAKE_USER_MAKE_RULES_OVERRIDE'
5792d3a Always place try_compile executables predictably (#11724)
a5300f1 Clarify CMAKE_USER_MAKE_RULES_OVERRIDE documentation (#11724)
2011-01-26 15:24:44 -05:00
Brad King 5ec9f6f609 Merge topic 'fix-try_compile-source-language-issue-11731'
699a725 Use shortest extension to verify try_compile language (#11731)
2011-01-26 15:22:27 -05:00
Brad King 41147fcf48 Merge topic 'improve-try_compile-error-messages'
1bee6b1 Improve try_compile and try_run error messages
2011-01-26 15:22:00 -05:00
Brad King 699a725584 Use shortest extension to verify try_compile language (#11731)
If the source-file form of try_compile is given a file name with
multiple '.' characters such as "a.b.c" use only the shortest extension
to check the language.  This is the expected behavior and is consistent
with normal language extension determination in the method
cmSourceFileLocation::UpdateExtension.
2011-01-20 09:02:57 -05:00
Brad King 1bee6b172b Improve try_compile and try_run error messages
Use IssueMessage to give the messages context and better formatting.
2011-01-20 08:58:49 -05:00
Brad King 5792d3a38a Always place try_compile executables predictably (#11724)
Set CMAKE_RUNTIME_OUTPUT_DIRECTORY explicitly in try_compile projects so
that the COPY_FILE feature knows where to look.  This makes the feature
robust against CMAKE_USER_MAKE_RULES_OVERRIDE files that set variables
like CMAKE_RUNTIME_OUTPUT_DIRECTORY or EXECUTABLE_OUTPUT_PATH.
2011-01-20 08:08:47 -05:00
Brad King 72ebd4ee12 Merge topic 'try_compile-RemoveFile'
097294e Fix try_compile RemoveFile anti-virus loop (#11503)
2010-12-16 14:00:28 -05:00
Brad King 2afb820352 Write full version into try_compile CMakeLists
Pass the full version to cmake_minimum_required(VERSION) in generated
CMake files for try_compile projects.  This tells CMake not to use any
backward compatibility behavior while processing code it generates.
2010-12-14 16:36:55 -05:00
Brad King 097294e667 Fix try_compile RemoveFile anti-virus loop (#11503)
Commit 3827991e (...fix...not being able to remove try compile code,
2008-03-26) introduced a loop of RemoveFile attempts to overcome
anti-virus locks on recently created try_compile executables.  Fix the
logic in this loop to work when the file is already missing.
2010-12-03 07:38:15 -05:00
Ben Boeckel a0b0d23f0c CMAKE_DO_TRY_COMPILE is no longer used 2010-09-14 17:51:43 -04:00
Brad King c8ea2705a7 Use same type in both cases of '?:' operator
Both possible result values need to be convertible to the same type.
Some compilers fail to recognize that they can construct std::string
from the empty string literal, so state it explicitly.
2010-06-29 10:01:59 -04:00
David Genest 295b5b60df Honor CMAKE_USER_MAKE_RULES_OVERRIDE in try_compile (#10902) 2010-06-29 08:29:41 -04:00
Brad King 172d503c61 Fix try_compile when file cannot be found
The try_compile() command's COPY_FILE option should not try to actually
copy the file if it cannot be found.  Some C runtime library's fopen
cannot handle an empty file name.
2009-10-28 11:24:08 -04:00
Brad King 96afb12087 Convert CMake to OSI-approved BSD License
This converts the CMake license to a pure 3-clause OSI-approved BSD
License.  We drop the previous license clause requiring modified
versions to be plainly marked.  We also update the CMake copyright to
cover the full development time range.
2009-09-28 11:43:28 -04:00
Brad King 80c947b397 No /fast targets in try_compile project mode
The try_compile command builds the cmTryCompileExec executable using the
cmTryCompileExec/fast target with Makefile generators in order to save
time since dependencies are not needed.  However, in project mode the
command builds an entire source tree that may have dependencies.
Therefore we can use the /fast target approach only in one-source mode.
2009-08-04 14:37:46 -04:00