+You'll need OS/2 Warp (4.51) or eCS(1.0), X-Free86/2 (3.3.6 or newer),
+Lesstif (0.92.7 or newer), emx (0.9d fix 4), flex (2.5.4), yacc (1.8) or
+bison (1.25), a Unix like shell (pdksh-5.2.14 or ash), Autoconf (2.57),
+GNU file utilities (3.13), GNU text utilities (1.19),
+GNU shell utilites (1.12), m4 (1.4), sed (2.05), grep (2.0), Awk (3.0.3),
+GNU Make (3.75).
+
+Preferably, you should have Posix/2 installed and C(PLUS)_INCLUDE_PATH and
+LIBRARY_PATH set up accordingly, however, wxGTK will even work without it.
+Presence of Posix/2 will be auto-detected.
+
+Open an OS/2 prompt and switch to the directory above.
+Set MAKESHELL (and depending on your installation also INSTALL, for me
+it tends to try to use the system's tcpip\pcomos\install.exe which causes
+problems...) to a Unix like shell, e.g.
+SET MAKESHELL=ash
+
+Be warned that depending on the precise version of your make, the
+variable that needs to be set might be MAKE_SHELL instead of MAKESHELL.
+If you have a really deficient version of GNU make, it might even be
+necessary to set SHELL or even COMSPEC to a unix like shell as well.
+
+Notice that the delivered configure scripts are fully OS/2 aware, so you
+can simply run
+ ash -c "configure --with-motif"
+and make and possibly make install as described above.
+
+To verify Lesstif installation, configure will try to compile a
+sample program that requires X headers/libraries to be either
+available via C_INCLUDE_PATH and LIBRARY_PATH or you need to
+explicitly set CFLAGS prior to running configure.
+
+* Building wxMotif on SGI
+-------------------------
+
+Using the SGI native compilers, it is recommended that you
+also set CFLAGS and CXXFLAGS before running configure. These
+should be set to :
+
+CFLAGS="-mips3 -n32"
+CXXFLAGS="-mips3 -n32"
+
+This is essential if you want to use the resultant binaries
+on any other machine than the one it was compiled on. If you
+have a 64bit machine (Octane) you should also do this to ensure
+you don't accidently build the libraries as 64bit (which is
+untested).
+
+The SGI native compiler support has only been tested on Irix 6.5.
+
+* Create your configuration
+---------------------------
+
+Usage:
+ ./configure [options]
+
+If you want to use system's C and C++ compiler,
+set environment variables CXX and CC as
+
+ % setenv CC cc
+ % setenv CXX CC
+ % ./configure options
+
+to see all the options please use:
+
+ ./configure --help
+
+The basic philosophy is that if you want to use different
+configurations, like a debug and a release version,
+or use the same source tree on different systems,
+you have only to change the environment variable OSTYPE.
+(Sadly this variable is not set by default on some systems
+in some shells - on SGI's for example). So you will have to
+set it there. This variable HAS to be set before starting
+configure, so that it knows which system it tries to
+configure for.
+
+Configure will complain if the system variable OSTYPE has
+not been defined. And Make in some circumstances as well...
+
+
+* General options
+-------------------
+
+Given below are the commands to change the default behaviour,
+i.e. if it says "--disable-threads" it means that threads
+are enabled by default.
+
+Many of the configure options have been thoroughly tested
+in wxWindows snapshot 6, but not yet all (ODBC not).
+
+You have to add --with-motif on platforms, where Motif is
+not the default (on Linux, configure will default to GTK).
+
+ --with-motif Use either Motif or Lesstif
+ Configure will look for both.
+
+The following options handle the kind of library you want to build.
+
+ --disable-threads Compile without thread support. Threads
+ support is also required for the
+ socket code to work.
+
+ --disable-shared Do not create shared libraries.
+
+ --enable-monolithic Build wxWindows as single library instead
+ of as several smaller libraries (which is
+ the default since wxWindows 2.5.0).
+
+ --disable-optimise Do not optimise the code. Can
+ sometimes be useful for debugging
+ and is required on some architectures
+ such as Sun with gcc 2.8.X which
+ would otherwise produce segvs.
+
+ --enable-profile Add profiling info to the object
+ files. Currently broken, I think.
+
+ --enable-no_rtti Enable compilation without creation of
+ C++ RTTI information in object files.
+ This will speed-up compilation and reduce
+ binary size.
+
+ --enable-no_exceptions Enable compilation without creation of
+ C++ exception information in object files.
+ This will speed-up compilation and reduce
+ binary size. Also fewer crashes during the
+ actual compilation...
+
+ --enable-no_deps Enable compilation without creation of
+ dependency information.
+
+ --enable-permissive Enable compilation without checking for strict
+ ANSI conformance. Useful to prevent the build
+ dying with errors as soon as you compile with
+ Solaris' ANSI-defying headers.
+
+ --enable-mem_tracing Add built-in memory tracing.
+
+ --enable-dmalloc Use the dmalloc memory debugger.
+ Read more at www.letters.com/dmalloc/
+
+ --enable-debug Equivalent to --enable-debug_info plus
+ --enable-debug-flag.
+
+ --enable-debug_info Add debug info to object files and
+ executables for use with debuggers
+ such as gdb (or its many frontends).
+
+ --enable-debug_flag Define __DEBUG__ and __WXDEBUG__ when
+ compiling. This enable wxWindows' very
+ useful internal debugging tricks (such
+ as automatically reporting illegal calls)
+ to work. Note that program and library
+ must be compiled with the same debug
+ options.
+
+* Feature Options
+-----------------
+
+Many of the configure options have been thoroughly tested
+in wxWindows snapshot 6, but not yet all (ODBC not).
+
+When producing an executable that is linked statically with wxGTK
+you'll be surprised at its immense size. This can sometimes be
+drastically reduced by removing features from wxWindows that
+are not used in your program. The most relevant such features
+are
+
+ --without-libpng Disables PNG image format code.
+
+ --without-libjpeg Disables JPEG image format code.
+
+ --without-odbc Disables ODBC code.
+
+ --without-libtiff Disables TIFF image format code.
+
+ --without-expat Disable XML classes based on Expat parser.
+
+ --disable-threads Disables threads. Will also
+ disable sockets.
+
+ --disable-sockets Disables sockets.
+
+ --disable-dnd Disables Drag'n'Drop.
+
+ --disable-clipboard Disables Clipboard.
+
+ --disable-streams Disables the wxStream classes.
+
+ --disable-file Disables the wxFile class.
+
+ --disable-textfile Disables the wxTextFile class.
+
+ --disable-intl Disables the internationalisation.
+
+ --disable-validators Disables validators.
+
+ --disable-accel Disables accel.
+
+Apart from disabling certain features you can very often "strip"
+the program of its debugging information resulting in a significant
+reduction in size.
+
+Please see the output of "./configure --help" for comprehensive list
+of all configurable options.
+
+
+* Compiling
+-----------
+
+The following must be done in the base directory (e.g. ~/wxMotif
+or ~/wxWin or whatever)
+
+Now the makefiles are created (by configure) and you can compile
+the library by typing:
+
+ make
+
+make yourself some coffee, as it will take some time. On an old
+Pentium 200 around 40 minutes. During compilation, you may get a few
+warning messages depending in your compiler.
+
+If you want to be more selective, you can change into a specific
+directory and type "make" there.
+
+Then you may install the library and its header files under
+/usr/local/include/wx and /usr/local/lib respectively. You
+have to log in as root (i.e. run "su" and enter the root
+password) and type
+
+ make install
+
+You can remove any traces of wxWindows by typing