The SystemTools::PutEnv function tries to provide the "putenv" API
without leaking memory. However, the kwsysDeletingCharVector singleton
frees memory that may still be referenced by the environment table,
having been placed there by putenv. If any static destruction or
processing by an external tool happens after the singleton is destroyed
and accesses the environment it will read invalid memory.
Replace use of putenv with setenv/unsetenv when available. The latter
manage internal copies of the values passed instead of referencing the
original memory. When setenv/unsetenv are not available use putenv with
a singleton that removes its values from the environment before freeing
their memory. This requires an "unputenv" implementation. On at least
some platforms it must be written in terms of "putenv" because other
APIs are not available and direct modification of the "environ" global
is not safe (e.g. on Windows there is interaction with "wenviron").
Fortunately either putenv("A=") or putenv("A") will remove "A" from the
environment on these platforms. On other platforms fall back to direct
manipulation of "environ".
Also add UnPutEnv to the API and add a test for the behavior of both.
Replace use of AppendEnv/RestoreEnv pairs with instances of
SaveRestoreEnvironment. Simplify the signature of AppendEnv and use it
in place of similar loops elsewhere. Move the RestoreEnv implementation
inside the SaveRestoreEnvironment destructor which is the only place
left that calls it.
Move the CMake version number components out of "CMakeLists.txt" into
dedicated file "Source/CMakeVersion.cmake". Set the TWEAK level to the
date explicitly. Add a "Source/CMakeVersion.bash" script to update the
date, thus replacing KWSys DateStamp for CMake. Teach the bootstrap
script to extract the version components from their new location.
01e979a VS: Add CMakeLists.txt re-run rules at start of generation
9a2c60e Classify known header file extensions as headers
1c48992 Always compile sources with known language
Previously, we were setting the default configuration for a generated
Xcode project to the hard-coded string "Debug" even in cases where users
customized their configuration types such that the list did not contain
"Debug". Now, we use the first string listed in CMAKE_CONFIGURATION_TYPES
as the default config for generated Xcode projects.
Refactoring in commit a2514f15 (Simplify cmNinjaTargetGenerator using
cmGeneratorTarget, 2012-03-13) accidentally removed mapping of .def file
paths through ConvertToNinjaPath (via GetSourceFilePath). Take the
ModuleDefinitionFile value from cmGeneratorTarget and map it correctly
through ConvertToNinjaPath.
In addition to generating cleaner paths in the ninja build files this
correctly links up references to a generated .def file with the custom
command output that produces it.
Since commit 328c0f65 (Simplify cmVisualStudio10TargetGenerator source
classification, 2012-03-19) the VS 10 generator uses the
cmGeneratorTarget source classification instead of directly getting the
list of source files from the target. This accidentally dropped the
CMakeLists.txt files from generated projects because they are added too
late for cmGeneratorTarget.
All generator-specific source files must be added to targets prior to
cmGeneratorTarget construction. Refactor addition of the CMakeLists.txt
files with CMake re-run custom commands to take place before normal
generation begins, and therefore early enough to be included in the
cmGeneratorTarget classification.
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.
Refactoring by commit 11d9b211 (Add cmGeneratorTarget to represent a
target during generation, 2012-03-07) and commit 45c2f932 (Simplify
cmMakefileTargetGenerator using cmGeneratorTarget, 2012-03-07) preserved
behavior introduced by commit 7740ccd1 (some cleanup of the makefile
generator, 2006-02-14) that favored the IgnoreFile extension test over
the availability of a known compilation language associated with a
source file. If a source is not marked as HEADER_FILE_ONLY and has a
known language extension or an explicit LANGUAGE property it should be
treated as that language. The LANGUAGE source file property
documentation says so.
9b32475 automoc: add define to test which caused bug #130182066511 automoc: fix#13018, proper cmake escaping to avoid false rebuilds
c652812 make cmLocalGenerator::EscapeForCMake() static