2.3 Problems

This section lists some things which have caused trouble during installation. If you encounter other problems, please send a bug report. See section 4. Bugs, for how to submit a useful bug report.

• You may get a warning from the compiler about `-static' being an unrecognized option. Ignore it. (This has already been reported to `bug-gcc'.)

• Under SunOS 4.x, the programs which use X (XBfe and Limn) cannot be dynamically linked, because (apparently) `/bin/ld' pulls in the entire `.sa' file, and the Form, Label, and Viewport widgets are multiply defined. (To us, this seems to defeat the whole purpose of having libraries. It also seems bizarre to us that X was written so that these multibyte functions are always needed (via __Xsi...), and furthermore that the multibyte functions need to specifically call the dynamic linking functions.)

  The file `lib/dlsym.c' (from the MIT X distribution) defines the dlsym, dlclose, and dlopen symbols, so static linking should work now.

  If the current setup fails, it might work to change `-lXaw' in the definition of X_libraries in `lib/defs.make' to the full pathname of the Xaw library.

• On many machines (Sun 3 or Sun 4 running SunOS 4.1, Sun386i running 4.0.2, 386 running ISC 2.2), GCC 1.40 gets a fatal error compiling `imageto/main.c' with `-O'. Just use `-g' for that file, or use a newer version of GCC.

• On a 386 running Interactive UNIX 2.2, `<math.h>' declares the wrong prototype for fmod: the routine takes two doubles, not one. We simply corrected our system include file.

  You may get compiler warnings for the file `widgets/Bitmap.c' at the lines which use the Xt function XtIsRealized on systems which define NULL as (void *) 0. The reason is that macro definition of XtIsRealized in `<X11/IntrinsicP.h>' incorrectly compares the result of XtWindowOfObject to NULL, instead of 0. If the warnings bother you, fix `IntrinsicP.h'.

• The application resource files `limn/Limn' and `xbfe/XBfe' must be installed in a directory where your X server can find them. This directory varies according to how X was installed; in the default X distribution, it is `/usr/lib/X11/app-defaults'. If you cannot (or do not want to) write in the default directory, you can install them elsewhere and set the XAPPLRESDIR environment variable to that directory. See the tutorial on resources that comes with the MIT X distribution (`mit/doc/tutorial/resources.txt') for more information.

Good luck.