The current code is not able to unset an environment variable, only to set it to an empty value. This patch refactors a bit the Message class and uses a new EnvChanger helper class that allows to change temporarily an environment variable and that is able to unset variables if needed.
The patch also adds new functions hasEnv and unsetEnv in environment.cpp.
Open issues:
* there may be systems where unsetenv is not available and putenv("name=") does not do the right thing;
* unsetenv may lead to leaks on some platforms.
* when using unsetenv, we may need to remove strings from the internal map that setEnv uses.
Do not check for headers strings.h, io.h, process.h
Do not check for functions mkstemp, mktemp
Do not check for declarations of istreambug_iterator, iterator, mktemp
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@31647 a592a061-630c-0410-9148-cb99ea01b6c8
preferences file with \use_converter_cache true. It is disabled by default,
and no GUI support for changing the preferences is yet implemented.
* src/insets/insetgraphics.C
(InsetGraphics::prepareFile): Use image file cache
* src/insets/ExternalSupport.C
(updateExternal): Use image file cache
* src/exporter.C
(Exporter::Export): Do not use image file cache
* src/graphics/GraphicsCacheItem.C
(CacheItem::Impl::imageConverted): Add the converted file to the
image file cache
(CacheItem::Impl::convertToDisplayFo): Use image file cache
* src/converter.C
(Converters::convert): Use image file cache if the caller allowed that
* src/converter.h
(Converters::convert): Adjust arguments
* src/Makefile.am: Add new files
* src/support/lyxlib.h
(chmod): new function
(copy): add mode argument
* src/support/copy.C
(chmod): new function
(copy): implement mode argument
* src/support/mkdir.C
(lyx::support::mkdir): Add warning if permissions are ignored
* src/lyxrc.[Ch]: Add new settings \converter_cache_maxage and
\use_converter_cache
* src/ConverterCache.[Ch]: New image file cache
* src/importer.C
(Importer::Import): Do nut use the image file cache
* src/lyx_main.C
(LyX::init): Initialize the image file cache
* src/mover.[Ch]
(Mover::do_copy): Add mode argument
(SpecialisedMover::do_copy): ditto
* configure.ac: Check for chmod
* development/cmake/ConfigureChecks.cmake: ditto
* development/cmake/config.h.cmake: ditto
* development/scons/SConstruct: ditto
* development/scons/scons_manifest.py: Add new files
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15897 a592a061-630c-0410-9148-cb99ea01b6c8
trunk/development/cmake/README.cmake:
Building LyX with CMake
CMake 2.4.2 or CVS version from www.cmake.org
Building Visual C++ 2005 project files:
- install Visual C++ 2005
- install Platform SDK 2005, "Core" and "Web Workshop"
- add include and library paths of the SDK to the IDE search paths,
menu: Tools->Options->VC++ directories->Library files + Include files
- install zlib (www.zlib.net) into %ProgramFiles%/GnuWin32/include+lib
or %ProgramFiles%/zlib/include+lib
- create a build directory, e.g. .../trunk/../build
- call in the build directory cmake ..\trunk\development\cmake
- start lyx.sln
To generate other build files call "cmake"
which shows a list of possibilities.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@14071 a592a061-630c-0410-9148-cb99ea01b6c8
