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Updated autoconf files to support shared libraries and JPEG library.
Updated README files. Removed old files. git-svn-id: file:///fltk/svn/fltk/trunk@24 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Michael R Sweet
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README.win32 - How to compile for Windows
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-----------------------------------------
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Fltk has been reported to compile with GNU GCC compilers, with
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MicroSoft Visual C++ version 4 and 5, and with Borland's C++ compiler
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(sorry no info on that here).
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----------------------------------------------------------------
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Using GNU C compilers (MingW32 and/or Cygnus):
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----------------------------------------------------------------
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Edited from mail from Carl Thompson:
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MINGW32 and Cygnus are both ports of the GNU compiler to win32. The
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difference is that Cygnus will emulate a complete Unix development
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environment including nearly all of the standard Unix system calls. This
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allows Unix programs to be ported to win32 possibly without changing a
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single line of source code. However, the applications it generates are big,
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very slow, depend on the Cygnus DLL, and currently somewhat unstable. For
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straight Windows applications / Libraries like FLTK that do not require Unix
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system call emulation, MINGW32 is the superior choice. MINGW32 produces a
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plain Windows binary that is only dependent on the normal Windows DLLs.
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Some links for getting MINGW32:
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http://agnes.dida.physik.uni-essen.de/~janjaap/mingw32/download.html
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http://www.cygnus.com/misc/gnu-win32/index.html
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ftp://objectcentral.com/mingw32
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You will of course need GNU make for MINGW32 in addition to the regular
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MINGW32 utilities. You also need the OpenGL header files which
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apparently are not always included with mingw32, get them from the
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above ftp site.
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More instructions from Rick Sayre (at Pixar):
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BTW, for what it's worth, here's the list of changes I have to make to get
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fltk and the examples to build under MINGW32 (which I've switched to from
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CYGWIN, since programs compiled under it use standard DLL's rather than the
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extremely bugging cygwin.dll, and it just otherwise seems to work better):
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Run ./configure
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-
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In makeinclude - change the CFLAGS and CXXFLAGS to add "-O2 -DWIN32"
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change the libraries to "-lgdi32 -luser32" (add "-mwindows" to not get
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a console)
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-
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In config.h - set HAVE_SCANDIR to 0. ./configure seems to do this
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correctly now, but it was occasionally in the past setting it to 1
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-
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in src/Makefile:
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change the "ar" command to use the "ar -M < ar.script" form. This
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is needed only because I compile under Cygwin's B19 bash, which blows up in
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all sorts of bad ways (hard resets[!]) on long command lines. More details
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if you care, but most people might not. Just a warning.
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-
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in test/demo.menu
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Change the paths to DOS form [blech!], don't use "&"
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[A better idea would be to replace system() with a call that knows how
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to fake a fork on Winblows]
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-
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in fluid/Makefile
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Change the make install rules to reference "fluid.exe" for installing and
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strip'ing, rather than "fluid"
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I suspect that it is very likely not a good idea to try "make install" under
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Windows. Instead, copy "libfltk.a" to "C:\MINGW32\LIB" (replace
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"C:\MINGW32" with the directory in which you installed MINGW32). Then copy
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the entire "FL" directory to "C:\MINGW32\INCLUDE".
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From Gustavo Hime:
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First, thank you for the nice piece of software, and congratulations
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on the quality source code. Fltk compiles (and runs) beautifully on
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all the systems I use (Irix 6.4,Solaris 2.5, RedHat Linux 5.0): the
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exception was Windows, where compilation was rather hard.
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I have just now managed to compile (satisfactorily) fltk on Win95
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using Mingw32: I do not have MSVC (I don't believe in Microsoft
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compilers :)), and we (the project I am engaged in) are going to use
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mingw32 to port unix code to windows anyway, so mingw32 was the way to
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go. Here is a list of what I had to do:
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Modify ar -mwindows to ar -ruv in your makeinclude.mingw32.
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Added -DCYGNUS to your *FLAGS variables (I am new to mingw32, I don't
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know what it defines to id itself, but they are so close I don't think
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it matters much).
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Disable GL overlay in win32/config.h (shouldn't this be the default?).
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Added dummy makedepend files to directories fluid and src.
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Created empty lib directory.
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Fixed scroll.C line 83 (implicit typecast from int to const char * in
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function call, mingw32 has a problem with this)
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Did not fix list_visuals.C (weird code there, where is the main
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functionfor win32?)
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And finally, the hardest: downloaded the OpenGL headers for mingw32
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fromftp://objectcentral.com/mingw32. These are not included in the
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mingw32 distribution, and it took me a couple of hours to find them on
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the net. It would be nice to add a note about this in the fltk
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documentation, and I'll send an e-mail asking them to add these
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headers to the mingw32 distribution.
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Once again, great code. With mingw32, fltk and opengl, I can
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imediatellyport all my old windows code to unix, and I no longer need
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to waste 300+ mb of hard-drive on stupid borland compilers.
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----------------------------------------------------------------
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Using MSVC++:
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----------------------------------------------------------------
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If you have MSVC++ 5.0, double click the "fltk.dsw". Make the "fltk"
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project current, and build it. This will create the library in
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../lib/fltkd.lib. To build the demo programs, select the "demo"
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project and build it. To run the demos run the demo project.
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I only have Pentium and Alpha NT machines running MSVC++ 5.0. Other
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users have reported success compiling fltk on Windowe95, and using
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version 4 of MSVC++, Borland's C++ compiler, and various ports of GCC
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to windows (to use these, look at the "makeinclude" files in
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../makefiles).
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If you want to make non-console apps you have to do something special,
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and that differs on each compiler/linker package. For MSVC++ the
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secret switch is:
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/SUBSYSTEM:WINDOWS /ENTRY:mainCRTStartup
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For cygwin/mingw32 and perhaps some other compilers based on gcc put
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this in the makeinclude file:
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LDLIBS =-lgdi32 -luser32 -mwindows
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There are no makefiles, for MSVC++ or any other compiler, because I
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don't know how to write them (the ones dumped by MSVC++ are useless
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and unreadable).
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----------------------------------------------------------------
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Other compilers:
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----------------------------------------------------------------
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I have heard that Borland C++ is usable.
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You probably need to start with the Unix Makefiles. There is one in
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../src, one in ../fluid, and one in ../test. Edit these as necessary
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and compile. You must add "-DWIN32" to your compiler switches.
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The biggest problem seems to be differences in the windows.h header
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files (MicroSoft copyrighted theirs?). Some functions and macros have
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different names or are missing.
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The MSVC++ "makefiles" are totally useless. Ignore that crap.
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Start with the Unix makefiles, which list all the necessary source
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files. Don't try to compile the files ending in _win32.C, they are
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#included by other files if WIN32 is defined.
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When compiling the symbol WIN32 must be defined (most compilers do
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this?) and you have to set the include path so the file win32/config.h
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is seen when the code does #include <config.h>. You may need to use
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some sort of switch to force the compiler to compile the files with
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C++ rather than C. On MSVC++ this is the obvious acronym "/TP" :-)
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Not doing these steps will result in lots of cryptic errors.
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----------------------------------------------------------------
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Known problems and ToDo list:
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----------------------------------------------------------------
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It does not work if you turn on full optimizations in VC++. I have
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been told this is due to bugs in VC++, but if anybody can find a way
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around them it would be nice... (the "optimize" settings in the
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project files only do partial optimization and work ok).
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If program is deactivated, Fl::wait() does not return until it is
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activated again, even though things happen, like redraws. This could
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break some programs that rely on executing code after Fl::wait().
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Fl_Gl_Window::can_do_overlay() returns true until the first time it
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attempts to draw an overlay, and then correctly returns whether or not
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there is overlay hardware.
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Cut text contains ^J rather than ^M^J to break lines. This is a
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feature, not a bug.
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Fl_Window::fullscreen() not implemented (should take over the screen
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without a title bar). Currently does maximize instead.
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Reports of clipping problems on '95. Can't reproduce on NT.
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Need to import .bmp files into fluid. Wonko has the specs.
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Can't set icon of windows.
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Transparent parts of pixmaps do not really work.
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