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Add INSTALL.scons, and a small adjustment of target all.
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INSTALL.scons
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273
INSTALL.scons
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=========================
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Building LyX with SCons
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=========================
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June, 2006
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The GNU Build System (autoconf, automake and make) has been used to build
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and distribute lyx. These de facto *nix tools are readily available and
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widely supported on the *nix systems, but not so under windows. They are
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not necessarily easy to use and maintain (at least to non-m4 experts)
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either. Because of these, a scons (http://www.scons.org) build system has
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been set up as an alternative way to build lyx. As of writing, this system
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only supports qt3 and qt4 frontends.
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This README file is organized as follows:
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1. General usage of scons
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2. *nix systems (Linux, Solaris and Mac OSX)
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3. Windows/mingw
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4. Windows/cygwin
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5. windows/msvc
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6. Troubleshooting
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1. General usage of scons
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=========================
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Prerequisites:
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--------------
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* Python:
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Python >= 1.5.2 is required to run scons, but Python >= 2.2 is used by
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lyx itself so the newer version is recommended. Python is widely
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available on non-windows systems. Windows users can download and install
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python from http://www.python.org.
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* SCons:
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scons >= 0.96.92 is needed. You can either use a full system-wide scons
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distribution or a light-weight one (called scons-local) installed along
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with the lyx source tree. Both variants of scons are freely available
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from http://www.scons.org. Note that LyX source may ship with scons-base
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in the near future.
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* Other libraries:
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These include zlib (required), qt3 or qt4 (required), gettext
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(optional), boost (optional), aspell (optional) and Aiksaurus
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(optional). Please refer to the system-specific sections regarding the
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availability and installation of them.
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Start scons:
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------------
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The scons system resides under development/scons. You can invoke it from
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either development/scons by, for example:
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> cd development/scons
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> scons frontend=qt4 qt_dir=d:/qt4 -j3 lyx
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or from top source directory by:
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> scons -f development/scons/SConstruct frontend=qt4 all
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There are three types of command line options:
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* key=value are user options. They are used to tell scons which
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frontend to use, whether or not use included boost libraries etc.
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You can use 'scons -h' to list all of the options.
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* parameters start with - or -- are scons options. Useful ones include
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-j3 (with three threads) and --config=force (force reconfiguration).
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* others options are targets, which are lyx objects to build.
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User Options:
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-------------
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Here I only list important options that you will likely use. Full option
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list with detailed description and default value can be displayed using
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command 'scons -h'.
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Components to use/build:
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* frontend=qt3/qt4: qt3 is the default for all *nix systems including
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windows cygwin. qt4 is the default for windows/mingw and windows/
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msvc. xform and gtk are not currently supported.
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* mode=debug/release: lyx will be built under the debug or release
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directory, with different default build options.
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* boost=included/system/auto: whether or not use included boost, system
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boost, or try to detect system boost first
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* gettext=included/system/auto
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* nls=yes/no whether or not enable natural language support.
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* spell=aspell/pspell/ispell/auto: spell engine
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Paths: Most of them will be probed if not specified.
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* qt_dir: top level directory of qt (with subdirectory include, lib)
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* qt_lib_path: path to the qt library, use only if there is no
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$qt_dir/lib
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* qt_inc_path: path to qt include directory, use only if there is no
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$qt_dir/include
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* extra_inc_path, extra_inc_path1, extra_lib_path, extra_lib_path1:
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additional paths to other libraries
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Convenience options:
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* fast_start=yes/no: if true, bypass initial configuration step and use
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existing src/config.h
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* load_option=yes/no: if true, load previously saved command line
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options so you can run 'scons install' directly after a long
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'scons all' building command.
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* rebuild=target1,target2... By default, scons will exam all components
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when you build lyx. You can free scons from some hard work and save
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yourself some time by telling scons to rebuild only specified
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component(s).
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* log_file: a log file of executed commands, default to scons_lyx.log
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Installation options:
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* prefix: directory where lyx will be installed
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* exec_dir: directory where lyx binaries will be installed.
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Default to $prefix/bin
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* dest_dir: if specified, install to this directory instead of $prefix.
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Compiler choice and flags:
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* use_vc: use msvc instead of mingw g++ under windows
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* CC, LINK, CPP, CXX, CCFLAGS, LDFLAGS etc: compiler commands and
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flags. They can be set as environment variables as well.
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Targets:
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--------
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You can specify one or more of the following targets:
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Static libraries (names correspond to their directories):
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boost, intl, support, mathed, insets, frontends, graphics,
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controllers, client, qt3, qt4, lyxbase
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Programs:
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tex2lyx, client, lyx, all = tex2lyx + client + lyx
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Installation:
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po, install = all + po
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Misc:
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msvs_projects
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A typical working sequence:
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---------------------------
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> cd development/scons
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> scons frontend=qt4 qt_dir=/path/to/qt4
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(build lyx, and all necessary libraries...)
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> scons all -j3
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(build lyx, client and tex2lyx, options like qt_dir will be carried
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over here)
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> scons rebuild=lyxbase
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(working on lyx_main.C, so only need to rebuild lyxbase)
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> scons
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(build again, only lyxbase will be rebuilt)
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> scons fast_start=no --config=force
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(need to regenerate src/config.h)
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> scons prefix=/usr/site dest_dir=/install/dir
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(lyx is built for /usr/site, but install to /install/dir)
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2. *nix systems (Linux, Solaris and Mac OSX)
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============================================
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Proper use of extra_inc_path, qt_dir etc should solve most of the
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problems.
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3. Windows/mingw
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=======================
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* install mingw with the following packages:
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- FIXME
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* install the latest Qt official "open source" binary package for
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Windows/Mingw
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* install iconv: latest gnuwin32 package installed in mingw tree
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(or elsewhere)
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* install mingw/zlib: ditto
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* aspell: this is difficult. Everybody has his own compiled library.
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Mine is in D:\program\Aspell-0.60.4.
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* Open a mingw xterm, and start scons as usual.
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4. Windows/cygwin
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=======================
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LyX should be easy to compile, but the qt3 library in the cygwin
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distribution does not work with the current cygwin dll (version 1.5.19-4
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as of June 2006) due to broken threading support. You should either wait
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for the forthcoming 1.5.20 version or install a recent snapshot from
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http://cygwin.com/snapshots.
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To build lyx for cygwin, you should
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* install (using the cygwin setup program) at least the following
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packages and all other packages pulled in by dependencies:
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aspell grep libintl1 qt3-bin tar
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coreutils jbigkit libintl2 qt3-devel
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diffutils jpeg libpng python
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gettext libintl libpng2 sed
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* run scons as you would do under linux.
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5. Windows/msvc
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=====================
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To build lyx with msvc, you should
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* install msvc
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It is recommended that you use MSVC2005 Express edition which is
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freely available from microsoft.
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* get windows platform SDK
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Please follow the link in the MSVC webpage to download and configure
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* build qt4
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- download qt4 source from trolltech (not the binary version, which
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only works with mingw)
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- get q../free patch for qt4
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- compile qt4 as instructed
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* download and install the official zlib library from www.zlib.org.
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* set up other optional libraries like aspell (following mingw
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instructions)
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* start from msvc command prompt, use the use_vc option to build lyx.
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You may need to use extra_inc_path etc to point to zlib paths.
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* you can use the msvs_projects target to obtain msvc project files
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for each lyx component.
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- go to development/scons (important)
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- run
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> scons [other options] msvs_projects
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Note that
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- the resulting project files will use scons to build lyx
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- all command line options are used as usual (when msvs invoke
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scons)
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6. Troubleshooting
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==================
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When you get an error:
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Q. Some path is not found.
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A, Try options such as extra_inc_path, extra_lib_path.
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Q. A test fails (failed to find zlib etc).
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A. Have a look at config.log.
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Q. I get a linking error.
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A. Get the command sequence from scons_lyx.log and see what could
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have gone wrong. You usually only need to tweak the last linking
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command.
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Q. Still can not figure it out.
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A. Send an email to lyx-devel mailing list.
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Q. Feeling too impatient/adventurous to wait for list response.
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A. Read SConstruct and SConscript and see what went wrong. Trust me, they
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are much easier to decipher than the autoconf/m4 files.
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@ -801,4 +801,4 @@ if 'install' in targets:
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Default('lyx')
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Alias('all', ['lyx', 'client', 'tex2lyx', 'po'])
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Alias('all', ['lyx', 'client', 'tex2lyx'])
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