Commit Graph

688 Commits

Author SHA1 Message Date
Brad King 711b63f7e0 Add policy CMP0019 to skip include/link variable re-expansion
Historically CMake has always expanded ${} variable references in the
values given to include_directories(), link_directories(), and
link_libraries().  This has been unnecessary since general ${}
evaluation syntax was added to the language a LONG time ago, but has
remained for compatibility with VERY early CMake versions.

For a long time the re-expansion was a lightweight operation because it
was only processed once at the directory level and the fast-path of
cmMakefile::ExpandVariablesInString was usually taken because values did
not have any '$' in them.  Then commit d899eb71 (Call
ExpandVariablesInString for each target's INCLUDE_DIRECTORIES,
2012-02-22) made the operation a bit heavier because the expansion is
now needed on a per-target basis.  In the future we will support
generator expressions in INCLUDE_DIRECTORIES with $<> syntax, so the
fast-path in cmMakefile::ExpandVariablesInString will no longer be taken
and re-expansion will be very expensive.

Add policy CMP0019 to skip the re-expansion altogether in NEW behavior.
In OLD behavior perform the expansion but improve the fast-path
heuristic to match ${} but not $<>.  If the policy is not set then warn
if expansion actually does anything.  We expect this to be encountered
very rarely in practice.
2012-12-07 09:51:19 -05:00
Petr Kmoch 694322ecea Define properties VS_GLOBAL_SECTION_*
Add definition and documentation of properties
VS_GLOBAL_SECTION_PRE_<section> and VS_GLOBAL_SECTION_POST_<section>.
2012-11-16 08:17:14 -05:00
Stephen Kelly 5285458342 Add convenience for getting a cmGeneratorTarget to use. 2012-09-19 15:32:25 +02:00
Peter Kümmel 7b2bf28e18 Ninja: suppress cmcldeps only for source file signature try_compiles 2012-09-05 14:38:49 +02:00
David Cole ae6f9b015f Merge topic 'module-no-soname'
56148fd Do not crash on SHARED library without language (#13324)
2012-06-21 11:55:15 -04:00
Brad King 56148fd2bc Do not crash on SHARED library without language (#13324)
Since commit e1409ac5 (Support building shared libraries or modules
without soname, 2012-04-22) CMake crashes on the code

 add_library(foo SHARED foo.nolang)

because the logic to lookup the language's soname flag was moved from
cmTarget::GetLibraryNames to cmMakefile::GetSONameFlag without its check
for a NULL language.  Restore the check for NULL.

Add RunCMake.Languages test to cover language error cases like this one.
2012-06-20 11:26:05 -04:00
Brian Helba b3b095a933 Print any evaluated 'elseif'/'else' commands in trace mode (#13220)
In trace mode ('--trace'), any 'elseif' or 'else' commands that are
evaluated as part of a conditional block will be printed.  Previously,
only the opening 'if' command of a conditional block was printed.
2012-05-16 09:07:55 -04:00
David Cole 8df7aa54f0 Merge topic 'module-no-soname'
fdb3f87 Test NO_SONAME property (#13155)
e1409ac Support building shared libraries or modules without soname (#13155)
2012-05-01 14:09:59 -04:00
Modestas Vainius e1409ac59b Support building shared libraries or modules without soname (#13155)
Add a boolean target property NO_SONAME which may be used to disable
soname for the specified shared library or module even if the platform
supports it.  This property should be useful for private shared
libraries or various plugins which live in private directories and have
not been designed to be found or loaded globally.

Replace references to <CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG> and
hard-coded -install_name flags with a conditional <SONAME_FLAG> which is
expanded to the value of the CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG
definition as long as soname supports is enabled for the target in
question.  Keep expanding CMAKE_SHARED_LIBRARY_SONAME_${LANG}_FLAG in
rules in case third party projects still use it.  Such projects would
not yet use NO_SONAME so the adjacent <TARGET_SONAME> will always be
expanded.  Make <TARGET_INSTALLNAME_DIR> NO_SONAME aware as well.  Since
-install_name is soname on OS X, this should not be a problem if this
variable is expanded only if soname is enabled.

The Ninja generator performs rule variable substitution only once
globally per rule to put its own placeholders.  Final substitution is
performed by ninja at build time.  Therefore we cannot conditionally
replace the soname placeholders on a per-target basis.  Rather than
omitting $SONAME from rules.ninja, simply do not write its contents for
targets which have NO_SONAME.  Since 3 variables are affected by
NO_SONAME ($SONAME, $SONAME_FLAG, $INSTALLNAME_DIR), set them only if
soname is enabled.
2012-04-30 11:50:27 -04:00
Brad King 369e3464be Factor out custom command .rule file path generation
Add cmGlobalGenerator::GenerateRuleFile to compute a generator-specific
rule file location.  This will allow specific generators to override the
location of .rule files without changing the behavior of other
generators.
2012-04-18 15:49:38 -04:00
Brad King f9b758e91a Cleanup custom command .rule file internal handling
Teach cmMakefile::AddCustomCommandToOutput to return the cmSourceFile
instance to which the custom command is attached.  Use the return value
instead of separately adding a .rule extension and searching for the
source.  Mark CMake-generated .rule files explicitly with a property
instead of trusting the file extension.
2012-04-18 15:48:50 -04:00
Brad King 9a2c60eb83 Classify known header file extensions as headers
Commit 328c0f65 (Simplify cmVisualStudio10TargetGenerator source
classification, 2012-03-19) introduced the first use of source
classification from cmGeneratorTarget (which originated as Makefile
generator logic) in a Visual Studio generator for handling of header
files.  Fix classification of header files to match known header
extensions instead of only the HEADER_FILE_ONLY property.  Make it
consistent with the "Header Files" source group.
2012-03-28 08:59:14 -04:00
David Cole b063599603 Add a default source group for object files. 2012-03-16 14:25:21 -04:00
Brad King b87d7a60a0 Add OBJECT_LIBRARY target type
This library type can compile sources to object files but does not link
or archive them.  It will be useful to reference from executable and
normal library targets for direct inclusion of object files in them.

Diagnose and reject the following as errors:

* An OBJECT library may not be referenced in target_link_libraries.

* An OBJECT library may contain only compiling sources and supporting
  headers and custom commands.  Other source types that are not normally
  ignored are not allowed.

* An OBJECT library may not have PRE_BUILD, PRE_LINK, or POST_BUILD
  commands.

* An OBJECT library may not be installed, exported, or imported.

Some of these cases may be supported in the future but are not for now.

Teach the VS generator that OBJECT_LIBRARY targets are "linkable" just
like STATIC_LIBRARY targets for the LinkLibraryDependencies behavior.
2012-03-13 14:37:32 -04:00
Brad King 9c0a00d6dd Rename/constify build-time config placeholder lookup
Rename cmGlobalGenerator::GetCMakeCFG{InitDirectory => IntDir} to
have a shorter name without a typo.  Add a 'const' qualifier since
the method is only for lookup and never needs to modify anything.
2012-03-09 15:16:03 -05:00
David Cole 580171185b Merge topic 'target-include-directories'
d662dff Fix shadowed variable warning on dashboard results
f66e735 Fix compiler warning reported on older Borland dashboard.
d90eed4 Fix compiler error reported on older Borland dashboard.
8233636 Update the documentation regarding INCLUDE_DIRECTORIES.
d899eb7 Call ExpandVariablesInString for each target's INCLUDE_DIRECTORIES
c21db87 Make search paths ordered and unique
22021f0 Remove cmMakefile::GetIncludeDirectories
9106b56 Extract and use the INCLUDE_DIRECTORIES target properties.
840509b Keep the INCLUDE_DIRECTORIES target property up to date.
a4d5f7b Add API to get the ordered includes for a target.
8adaee2 CMake: Eliminate cmMakefile::IncludeDirectories
7620932 Remove include flags memoization.
97a5faa Make it safe to call this method without creating duplicates.
edd5303 Refactor GetIncludeFlags to take includes instead of fetching them
2012-03-08 15:13:15 -05:00
Yury G. Kudryashov 89403bf87f Rename UsedCommands to FinalPassCommands
When I read 'UsedCommands' I thought that it holds all commands used in the
file, not only those that have FinalPass().
2012-02-29 11:49:42 +04:00
David Cole d662dff769 Fix shadowed variable warning on dashboard results 2012-02-23 08:11:09 -05:00
David Cole 8233636dbe Update the documentation regarding INCLUDE_DIRECTORIES.
It is now a target property and is affected by the use
of the include_directories command.
2012-02-22 15:22:03 -05:00
David Cole d899eb71b5 Call ExpandVariablesInString for each target's INCLUDE_DIRECTORIES
For strict backwards compatibility only. This should be unnecessary at
this point, but introducing a policy to deprecate it properly is a
whole different topic branch...
2012-02-22 07:29:32 -05:00
David Cole 22021f07f8 Remove cmMakefile::GetIncludeDirectories
After making the changes to use the new target level INCLUDE_DIRECTORIES
property, there are no more callers of this method.
2012-02-22 07:29:32 -05:00
Stephen Kelly 840509babb Keep the INCLUDE_DIRECTORIES target property up to date.
The directory level property changes need to be added to it.
2012-02-22 06:31:50 -05:00
David Cole 8adaee2b0b CMake: Eliminate cmMakefile::IncludeDirectories
Instead, re-implement it in terms of the directory property INCLUDE_DIRECTORIES.
2012-02-22 06:31:49 -05:00
Brad King ca39c5cdd1 Optionally allow IMPORTED targets to be globally visible
Consider the case motivating commit e01cce28 (Allow add_dependencies()
on imported targets, 2010-11-19).  An imported target references a file
generated at build time by a custom target on which it depends.  Had the
file been built directly using add_library or add_executable its target
name would have been visible globally.  Therefore the imported target
representing the file should be globally visible also.

Teach the IMPORTED signature of add_(executable|library) to accept a new
"GLOBAL" option to make the imported target visible globally.
2012-01-25 14:42:31 -05:00
Peter Kuemmel a087490697 Add NEWLINE_STYLE option to configure_file (#3957) 2011-11-28 13:48:59 -05:00
Nicolas Despres 3db2973bd2 Refactor TargetTypeNames.
Make it a static method instead of an array. It is safer for the
type checking and if we add a new target type we will be warned to add
a case to the switch.
2011-10-02 18:30:42 +01:00
David Cole 28cba226b3 Merge topic 'UsingCMakeLikePkgConfig2'
59238dc Fix --find-package mode on Cygwin, where enable_language(RC) is called
98472e4 Require the current cmake version in --find-package mode
a6ccf3c Use $(CXXFLAGS) and $(LDFLAGS) in the --find-package test Makefile
4386918 Fix line length
7d69310 Only enable the test when using GNU make
3011149 Make the test harder by always having a space in the include dirs
ab57ff6 Make the --find-package test harder
626fc71 Much improved test, should now be executed on all UNIXes
ec6982d Disable any STATUS output in --find-package mode
e552ae7 Dont check for -isysroot and -mmacosx-version on OSX in --find-package mode
e589589 Rename helper macros print_compile_flags() to set_compile_flags_var()
aecfc1f Fix test on OpenBSD with BSD make
6bb4ca3 The makefile for the test was kindof wrong
fd15b5e Only run the test if we are using a makefile generator under UNIX
9fc87c6 Add a test for the new --find-package mode
d3ae0ff Improve documentation for --find-package mode
bf07375 Add a cmake.m4 for using cmake in autoconf projects instead of pkgconfig
b0e3578 Use the file-utility to test for 64bit if there is no /usr/lib64
53edfb2 Better support for lib64 and Debian multiarch
b8fdaa1 Fix copyright notice in new CMakeFindPackageMode.cmake
7690edf Replace cmake::GetScriptMode() with GetWorkingMode()
e4f603b Implement find-package mode of cmake
a91d662 Add find-package mode, which does nothing yet
b976e70 Make clLocalGenerator::GetTargetFlags() public
2011-08-25 15:40:49 -04:00
Alex Neundorf ec6982dc8c Disable any STATUS output in --find-package mode
Any STATUS output will be fed directly to the compiler, which
will not understand any status messages. Error messages
are fine, since they are errors and it is ok if the compiler
fails in such cases.

Alex
2011-08-16 00:40:59 +02:00
Alex Neundorf 83b730cd1a Add AUTOMOC to the add_library() command
Alex
2011-08-14 15:58:08 +02:00
Alex Neundorf 7690edffd9 Replace cmake::GetScriptMode() with GetWorkingMode()
GetWorkingMode() returns a new enum WorkingMode, which is one of
NORMAL_MODE, SCRIPT_MODE and FIND_PACKAGE_MODE.

Alex
2011-08-09 16:32:45 +02:00
Brad King 119dce33d3 Merge topic 'SetPropertyAppendString'
9dbba1b Fix #12342: Add APPEND_STRING option to set_property()
2011-07-26 14:57:32 -04:00
Alex Neundorf 9dbba1b464 Fix #12342: Add APPEND_STRING option to set_property()
set_property() has APPEND, which creates a list. E.g. when
appending to COMPILE_FLAGS a string is needed, not a list.
With the APPEND_STRING option the value is append as string,
not as list.

Alex
2011-07-15 20:57:33 +02:00
Alex Neundorf a91d662f46 Add find-package mode, which does nothing yet
-add command line argument --find-package and handle it,
 i.e. call an empty function cmake::FindPackage()
-add basic help

Alex
2011-07-02 17:50:05 +02:00
Bill Hoffman 3e4ba898c1 Only pay for unused variable checking if it is on. 2011-06-21 15:59:10 -04:00
Brad King c7278633a7 Merge topic 'validate-custom-commands-issue-11963'
339d592 Validate custom command arguments (#11963)
2011-03-15 14:47:51 -04:00
Brad King 339d5922d9 Validate custom command arguments (#11963)
Reject quoted commands immediately with an error message instead of
allowing a later assertion failure.
2011-03-14 17:49:30 -04:00
David Cole 106958c047 Add CMAKE_ARGC and CMAKE_ARGV0..N-1 variables (#2828)
For now, these variables are only available in -P script mode.
2011-02-02 21:19:01 -05:00
David Cole 94d1684a8f Add CMAKE_SCRIPT_MODE_FILE variable (#2828)
New CMake variable is set when processing a -P script file,
but not when configuring a project.
2011-02-02 18:18:14 -05:00
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 833b8aa902 Merge topic 'recursive-CMAKE_USER_MAKE_RULES_OVERRIDE'
c83a834 try_compile: Allow only languages loaded in caller (#11469)
2011-01-26 15:25:18 -05:00
Brad King c83a834d29 try_compile: Allow only languages loaded in caller (#11469)
During a try_compile cmGlobalGenerator::EnableLanguage uses results from
the outer project.  Reject attempts to enable languages in the test
project that are not "ready" in the outer project.  Mark a language as
"ready" when all its information has been loaded and we are ready to
generate build rules.

This also avoids infinite recursion introduced by commit 295b5b60 (Honor
CMAKE_USER_MAKE_RULES_OVERRIDE in try_compile, 2010-06-29) for projects
that set CMAKE_USER_MAKE_RULES_OVERRIDE to a file that uses try_compile.
The file is loaded along with the information for a given langauge so
the language is not yet "ready".
2011-01-24 10:00:45 -05:00
Brad King 3a1975c529 Merge topic 'try_compile-Makefile-config'
052c2ae Document CMAKE_TRY_COMPILE_CONFIGURATION variable
56efc60 Honor CMAKE_TRY_COMPILE_CONFIGURATION in Makefile generators (#10809)
2011-01-19 14:28:32 -05:00
Brad King 56efc60fa0 Honor CMAKE_TRY_COMPILE_CONFIGURATION in Makefile generators (#10809)
Previously this was used only in multi-configuration generators to
choose the configuration of try_compile and try_run at their build time.
Teach CMake to honor the variable in single-configuration generators as
the CMAKE_BUILD_TYPE.
2011-01-17 17:21:30 -05:00
Brad King 668ce6b1e8 Combine duplicate COMPILE_DEFINITIONS disclaimer 2011-01-17 07:55:48 -05:00
Brad King 729db484ef Fix ArgumentExpansion test expected results
Teach the ArgumentExpansion test to expect flattened lists as has always
been the case in the CMake language.  Now that the test should pass
enable the failure regex even when CMAKE_STRICT is not on.  Replace the
reference to the old ArgumentExpansion test behavior in the workaround
comment in cmMakefile::TryCompile with a full inline explanation.
2011-01-11 17:10:28 -05:00
Brad King 764015c284 Merge topic 'policy-CMP0017'
ce28737 Remove usage of CMAKE_CURRENT_LIST_DIR now that we have CMP0017
7db8db5 Improve documentation and messages for the new CMP0017
db44848 Prefer files from CMAKE_ROOT when including from CMAKE_ROOT
1e69c6f Merge branch 'user-policy-defaults' into policy-CMP0017
65a0a2a Merge branch 'include-command-whitespace' into policy-CMP0017
2011-01-11 15:52:13 -05:00
Alex Neundorf db44848f44 Prefer files from CMAKE_ROOT when including from CMAKE_ROOT
This patch makes include() and find_package() prefer cmake files
located in CMAKE_ROOT over those in CMAKE_MODULE_PATH.
This makes sure that the including file gets that file included
which it expects, i.e. the one from cmake with which it was tested.
It only changes behaviour when such an included file exists both
in CMAKE_MODULE_PATH and in CMAKE_ROOT.
This comes together with a new policy CMP0017, with default
behaviour it behaves as it always did, but warns.
With NEW behaviour it includes the file from CMAKE_ROOT
instead from CMAKE_MODULE_PATH. This fixes (if CMP0017 is set)
building KDE 4.5 with cmake >= 2.8.3.
Also a basic test for this policy in included.
2011-01-04 08:06:20 -05:00
Ben Boeckel 89c25443a6 Checking for a definition is a usage 2011-01-03 08:47:04 -05:00
Brad King 9f46051490 Merge topic 'cygwin'
85c0a69 Cygwin: Do not define 'WIN32' (#10122)
62c6d2d Merge branch 'cmake_--system-information_min-version' into cygwin
72db20f Merge branch 'tests-if-CYGWIN' into cygwin
5adef16 Merge branch 'cygwin-module-prefix' into cygwin
cbc3258 Merge branch 'try-compile-min-version' into cygwin
2010-12-21 14:06:32 -05:00
Brad King 31b0657e7d Merge topic 'custom-command-generator-expressions'
4499d50 Mark CustomCommand test perconfig.out as SYMBOLIC
f0cdb60 Introduce "generator expression" syntax to custom commands (#11209)
4749e4c Record set of targets used in cmGeneratorExpression
ef9e9de Optionally suppress errors in cmGeneratorExpression
45e1953 Factor per-config sample targets out of 'Testing' test
4091bca Factor generator expression docs out of add_test
bfb7288 Record backtrace in cmCustomCommand
2010-12-21 14:03:24 -05:00
Brad King 85c0a69a92 Cygwin: Do not define 'WIN32' (#10122)
One of Cygwin's goals is to build projects using the POSIX API with no
Windows awareness.  Many CMake-built projects have been written to test
for UNIX and WIN32 but not CYGWIN.  The preferred behavior under Cygwin
in such projects is to take the UNIX path but not the WIN32 path.

Unfortunately this change is BACKWARDS INCOMPATIBLE for Cygwin-aware
CMake projects!  Some projects that previously built under Cygwin and
are Cygwin-aware when they test for WIN32 may now behave differently.
Eventually these projects will need to be updated, but to help users
build them in the meantime we print a warning about the change in
behavior.  Furthermore, one may set CMAKE_LEGACY_CYGWIN_WIN32 to request
old behavior during the transition.

Normally we avoid backwards incompatible changes, but we make an
exception in this case for a few reasons:

(1) This behavior is preferred by Cygwin's design goals.

(2) A warning provides a clear path forward for everyone who may see
incompatible behavior, and CMAKE_LEGACY_CYGWIN_WIN32 provides a
compatibility option.  The warning and compatibility option both
disappear when the minimum required version of CMake in a project is
sufficiently new, so this issue will simply go away over time as
projects are updated to account for the change.

(3) The fixes required to update projects are fairly insignificant.
Furthermore, the Cygwin distribution has no releases itself so project
versions that predate said fixes tend to be difficult to build anyway.

(4) This change enables many CMake-built projects that did not
previously build under Cygwin to work out-of-the-box.  From bug #10122:

  "I have built over 120 different source packages with (my patched)
   CMake, including most of KDE4, and have found that NOT defining
   WIN32 on Cygwin is much more accurate." -- Yaakov Selkowitz

A fully compatible change would require patches on top of these project
releases for Cygwin even though they otherwise need not be aware of it.

(5) Yaakov has been maintaining a fork of CMake with this change for the
Cygwin Ports distribution.  It works well in practice.  By accepting the
change in upstream CMake we avoid confusion between the versions.

CMake itself builds without WIN32 defined on Cygwin.  Simply disable
CMAKE_LEGACY_CYGWIN_WIN32 explicitly in our own CMakeLists.txt file.
2010-12-17 14:19:58 -05:00
Brad King ad25a968b9 Merge branch 'ImprovedDotSupport2' into dev/strict-mode
Conflicts:
	Source/cmake.cxx
2010-12-17 10:32:01 -05:00
Brad King c128abe383 Merge branch 'AddCMAKE_CURRENT_LIST_DIR' into dev/strict-mode
Conflicts:
	Source/cmMakefile.cxx
2010-12-17 10:31:41 -05:00
Brad King 9bcaff02ff Merge branch 'cmake-guiRememberAdvancedCheckbox' into dev/strict-mode
Conflicts:
	Source/QtDialog/CMakeSetupDialog.cxx
2010-12-17 10:31:19 -05:00
Brad King bfb7288f81 Record backtrace in cmCustomCommand
This will be used to report custom command errors to the user with a
backtrace pointing at the add_custom_command or add_custom_target call.
2010-12-15 14:53:24 -05:00
Brad King 999ce0aa9c Document target_link_libraries target scope (#11058)
The target_link_libraries command requires its first argument to be a
target in the current directory.  Document this and update the error
message to be more specific.  While at it, format the error message with
a call stack.
2010-12-15 12:18:59 -05:00
Brad King 0621362668 Fix dependency tracing of INSTALL and PACKAGE (#11598)
Commit e01cce28 (Allow add_dependencies() on imported targets,
2010-11-19) started using cmMakefile::FindTargetToUse to follow
dependencies, including those of GLOBAL_TARGETs like INSTALL and
PACKAGE.  Since global targets exist in every directory, dependencies
between them must be traced within each directory too.

Teach FindTargetToUse to check the current directory before checking
globally.  For global targets this will find the local copy.  For for
normal targets this will be a no-op because they are globally unique.
2010-12-13 12:56:47 -05:00
Ben Boeckel 8e8c9e4924 Don't check at destruction for usage 2010-12-07 16:38:37 -05:00
Ben Boeckel 668e005db5 Use cmake::IssueMessage for warnings 2010-12-07 16:38:25 -05:00
Ben Boeckel 88cd4c1e92 Use 'CMake Warning' versus 'warning' for CDash 2010-12-07 14:40:21 -05:00
Ben Boeckel 3c3b98ddd3 Initialize the class before setting warn flags
Since Initialize sets variables that we don't want to warn about, don't
leak the original class' settings.
2010-12-03 12:52:36 -05:00
Ben Boeckel cf8b15a5c1 Ignore files under the CMakeFiles directory 2010-12-03 12:49:37 -05:00
Ben Boeckel fd50f06b21 Don't check for unused vars at configure time
The generate step should catch all of them.
2010-12-02 16:57:30 -05:00
Ben Boeckel c18c977ce8 When checking for variables, specify a reason
Allow reasons to begiven for checking for unused variables.
2010-11-15 10:32:15 -05:00
David Cole b0fb2ad3e1 Merge topic 'AddCMAKE_CURRENT_LIST_DIR'
b011840 Use absolute path to FindPackageHandleStandardArgs.cmake everywhere
41e4f1a Add automatic variable CMAKE_CURRENT_LIST_DIR(dir of CMAKE_CURRENT_LIST_FILE)
f9fc79c Remove trailing whitespace
2010-10-19 15:53:16 -04:00
Ben Boeckel 3f1121f722 Use a long int since Line is a long as well 2010-10-08 13:49:39 -04:00
Ben Boeckel 8dbb2090a2 Wrong boolean value for CLI warnings 2010-10-07 12:28:25 -04:00
Ben Boeckel d4ee998b61 Hard-code the --no-warn-unused-cli flag 2010-10-07 12:22:00 -04:00
Ben Boeckel 82ed104dcb Flag that the directories have been set 2010-10-05 13:45:34 -04:00
Ben Boeckel 367e5c37bb Revert "Revert "When calling CMake, set the args and the cache""
This reverts commit ab5d4e43d9.
2010-10-05 12:27:37 -04:00
Ben Boeckel ab5d4e43d9 Revert "When calling CMake, set the args and the cache"
This reverts commit 9b90040edb.
2010-10-01 16:52:16 -04:00
Ben Boeckel 9b90040edb When calling CMake, set the args and the cache 2010-10-01 13:44:55 -04:00
Bill Hoffman 3d68dd230d Fix for bug #11274, VS10 custom commands that create files in INTDIR fix. 2010-09-29 17:02:04 -04:00
Alex Neundorf 41e4f1a210 Add automatic variable CMAKE_CURRENT_LIST_DIR(dir of CMAKE_CURRENT_LIST_FILE)
Comes with a simple test and docs.

Alex
2010-09-28 22:10:47 +02:00
Alex Neundorf f9fc79cac5 Remove trailing whitespace
Alex
2010-09-28 21:44:22 +02:00
Ben Boeckel 535253f385 Initialize the warning variables earlier 2010-09-22 12:46:15 -04:00
Ben Boeckel cbb286c0b2 Fix the path detection to work for top-level 2010-09-22 12:46:15 -04:00
Ben Boeckel 62be1f78ae Initialize the usage stack earlier 2010-09-22 12:46:15 -04:00
Ben Boeckel c6e7fabc0f Factor out the checks for unused variables 2010-09-22 12:46:15 -04:00
Ben Boeckel 5e41ba8e4a When using the API, check for Add vs. Remove 2010-09-17 10:13:19 -04:00
Ben Boeckel 2c82f2b759 Exempt CMAKE(CURRENT|PARENT)_LIST_FILE from usage 2010-09-16 17:50:07 -04:00
Ben Boeckel bef3aeebab Use the API so that warnings can be tracked 2010-09-16 16:06:16 -04:00
Ben Boeckel 05cb0f4daf Check for unused variables in the dtor 2010-09-16 16:05:59 -04:00
Ben Boeckel ca90f673a0 Fix detection of unused variables when setting 2010-09-16 13:53:41 -04:00
Ben Boeckel 995cfb0e2a Don't warn if the variable wasn't defined 2010-09-16 13:52:17 -04:00
Ben Boeckel a8e97f8a08 Remove VarRemoved code since it's been superceded 2010-09-16 13:50:39 -04:00
Ben Boeckel 59463ef1a3 Rework CheckVariableForUnused usage 2010-09-16 11:50:57 -04:00
Ben Boeckel f117423336 Fix line lengths to be no more than 78 2010-09-16 11:49:58 -04:00
Ben Boeckel e49a935c20 Improve unused warning logic
Only warn when changing the definition of an initialized variable.
2010-09-15 11:41:27 -04:00
Ben Boeckel 02a114dfe8 Add method to allow variables to be marked as used 2010-09-15 11:34:35 -04:00
Ben Boeckel ae3eff35b4 Fix the path used for ignoring system warnings 2010-09-14 17:14:25 -04:00
Ben Boeckel 056b44113f Fix missing case for usage of a variable 2010-09-14 17:10:22 -04:00
Ben Boeckel 980e048a7d Factor out checks for unused variables 2010-09-14 17:10:04 -04:00
Brad King b06fb16684 No CMAKE_CONFIGURATION_TYPES in single-config generators (#10202)
Factor out reading of CMAKE_CONFIGURATION_TYPES and CMAKE_BUILD_TYPE
into cmMakefile::GetConfigurations.  Read the former only in
multi-config generators.
2010-09-08 14:54:49 -04:00
Ben Boeckel 3801463c9f Use built-ins for readability and maintainability 2010-09-08 12:03:42 -04:00
Ben Boeckel 8b520158c3 Push the initialize and unused states when copying 2010-09-07 15:12:15 -04:00
Ben Boeckel 300fc15779 Fix detection of system files
Instead of looking to see if the file is under CMAKE_ROOT, check to see
if it is instead under the source or binary directories in use.
2010-09-02 11:33:34 -04:00
Ben Boeckel d784e6af4d Run the unused variables check on the final pass 2010-09-02 11:29:05 -04:00
Ben Boeckel 74997000c8 Add a flag to warn about system files 2010-09-01 13:09:08 -04:00