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This is an old version of the file "porting.notes". It contains
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porting information that people submitted for Tk releases numbered
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3.6 and earlier. You may find information in this file useful if
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there is no information available for your machine in the current
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version of "porting.notes".
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I don't have personal access to any of these machines, so I make
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no guarantees that the notes are correct, complete, or up-to-date.
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If you see the word "I" in any explanations, it refers to the person
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who contributed the information, not to me; this means that I
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probably can't answer any questions about any of this stuff. In
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some cases, a person has volunteered to act as a contact point for
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questions about porting Tcl to a particular machine; in these
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cases the person's name and e-mail address are listed. I'd be
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happy to receive corrections or updates.
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RCS: @(#) $Id: porting.old,v 1.2 1998/09/14 18:23:54 stanton Exp $
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1. There appears to be a compiler/library bug that prevents tkTrig.c
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from compiling unless you turn off optimization (remove the -O compiler
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switch). The problem appears to have been fixed in the 1.3-4 version
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HP-UX Release 7.05 on a series 300 (68k) machine.
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The native cc has been used for production.
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X11r4 libraries and include files were taken from
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internet archives, where as the server came with HPUX release 7.05.
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Symbol table space for cc had to be increased with: -Wc,-Ns3000
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tkBind.c did not compile under -O:
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C1 internal error in "GetField": Set Error Detected
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tkBind.c did compile without optimization (no -O).
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2. Note: if you have trouble getting xauth-style access control to work
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(and you'll need xauth if you want to use "send"), be sure to uncomment
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# Vuelogin*authorize: True
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in the file /usr/vue/config/Xconfig, so that the server starts up with
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authorization enabled. Also, you may have to reboot the machine in
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order to force the server to restart.
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Getting Tk to run under SCO Unix:
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Add a "#undef select" to tkEvent.c, and remove the reference to TK_EXCEPTION
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around line 460 of main.c.
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Tk uses its own scheme for allocating the border colors for its 3D widgets,
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which causes problems when running TK on a system with "PseudoColor"
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display class, and a 16-cell colormap.
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If you can't go to eight bitplanes, you can instead start the server with a
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"-static" (Xsco) or "-analog" (Xsight) option, making the display class
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become "StaticColor". This makes the entire colormap read-only, and it will
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return the color that most closely maps to the desired color as possible.
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Silicon Graphics systems:
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1. Change the CC variable in the Makefile to:
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CC = cc -xansi -D__STDC__ -signed
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2. Change the LIBS variable in the Makefile to use the X11 shared library
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("-lX11_s" instead of "-lX11").
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3. Under some versions of IRIX (e.g. 4.0.1) you have to turn off
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optimization (e.g. change "-O" in CFLAGS to "-O0" or remove it
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entirely) because of faulty code generation. If the Tcl or Tk test
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suites fail, turn off optimization.
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4. Add a "-lsun" switch just before "-lm" in the LIBS definition.
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Under some versions of IRIX (5.1.1.3?) you'll need to omit the
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"-lsun" switch, plus remove the "-lsocket" and "-lnsl" switches
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added by the configure script; otherwise you won't be able to
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use symbolic host names for the display, only numerical Internet
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5. Rumor has it that you'll also need a "-lmalloc" switch in the
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6. In IRIX 5.2 you'll have to modify Makefile to fix the following problems:
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- The "-c" option is illegal with this version of install, but
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the "-F" switch is needed instead. Change this in the "INSTALL ="
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- The order of file and directory have to be changed in all the
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invocations of INSTALL_DATA or INSTALL_PROGRAM.
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1. To allow ALT- sequences to work on the RS-6000, the following
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line should be changed in tkBind.c:
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{"Alt", Mod2Mask, 0},
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{"Alt", Mod1Mask, 0},
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1. The first major hurdle is that SVR4's select() subtly differs
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from BSD select. This impacts Tk in two ways, some of the Xlib calls
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make use of select() and are inherently broken and Tk itself makes
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extensive use of select(). The first problem can't be fixed without
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rebuilding one's Xlib, but can be avoided. I intend to submit part
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of my work the XFree86 guys so that the next version of XFree86 for
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SVR4 will not be broken. Until then, it is necessary to comment out
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this section of code from Tk_DoOneEvent() (which is near line 1227):
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void (*oldHandler)();
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oldHandler = (void (*)()) signal(SIGPIPE, SIG_IGN);
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(void) signal(SIGPIPE, oldHandler);
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if you don't comment it out, some scripts cause wish to go into
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an infinite loop of sending no-ops to the X server.
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2. As for fixing Tk's calls to select(), I've taken the simple
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approach of writing a wrapper for select and then using #define to
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replace all calls to select with the wrapper. I chose tkConfig.h
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to load the wrapper. So at the very end of tkConfig.h, it now looks
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# include "BSDselect.h"
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#endif /* _TKCONFIG */
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The file BSDselect.h looks like this:
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/select.h>
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/* This is a fix for the difference between BSD's select() and
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* SVR4's select(). SVR4's select() can never return a value larger
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* than the total number of file descriptors being checked. So, if
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* you select for read and write on one file descriptor, and both
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* are true, SVR4 select() will only return 1. BSD select in the
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* same situation will return 2.
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* Additionally, BSD select() on timing out, will zero the masks,
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* while SVR4 does not. This is fixed here as well.
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* Set your tabstops to 4 characters to have this code nicely formatted.
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* Jerry Whelan, guru@bradley.edu, June 12th, 1993
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BSDselect(nfds, readfds, writefds, exceptfds, timeout)
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fd_set *readfds, *writefds, *exceptfds;
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struct timeval *timeout;
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rval = select(nfds, readfds, writefds, exceptfds, timeout);
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case -1: return(rval);
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case 0: if(readfds != NULL)
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if(exceptfds != NULL)
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default: for(i=0, rval=0; i < nfds; i++) {
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if((readfds != NULL) && FD_ISSET
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(i, readfds)) rval++;
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if((writefds != NULL) && FD_ISSE
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T(i, writefds)) rval++;
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if((writefds != NULL) && FD_ISSE
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T(i, exceptfds)) rval++;
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/* Should never get here */
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CDC 4680MP, EP/IX 1.4.3:
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The installation was done in the System V environment (-systype sysv)
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with the BSD extensions available (-I/usr/include/bsd and -lbsd). It was
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built with the 2.20 level C compiler. The 2.11 level can be used, but
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it is better to match what TCL is built with, which must be 2.20 or
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higher (see the porting notes with TCL for the details).
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To make the configure script find the BSD extensions, I set environment
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variable DEFS to "-I/usr/include/bsd" and LIBS to "-lbsd" before
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running it. I would have also set CC to "cc2.20", but that compiler
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driver has a bug that loader errors (e.g. not finding a library routine,
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which the script uses to tell what is available) do not cause an error
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status to be returned to the shell (but see the Tcl 2.1.1 porting notes
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for comments about using "-non_shared").
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After running configure, I changed the CC definition line in Makefile
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to match the TCL build. Skip this if the default compiler is already 2.20
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CDC 4680MP, EP/IX 2.1.1:
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The installation was done in the System V environment (-systype sysv)
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with the BSD extensions available (-I/usr/include/bsd and -lbsd). It was
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built with the 3.11 level C compiler. Earlier levels can be used, but it
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is better to match what TCL is built with, which must be 2.20 or higher
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(see the porting notes with TCL for the details).
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To make the configure script find the BSD extensions, I set environment
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variable DEFS to "-I/usr/include/bsd -non_shared" and LIBS to "-lbsd"
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See the Tcl porting notes for comments on why "-non_shared" is needed
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during the configuration step. It was removed from AC_FLAGS before
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Pyramid, OSx 5.1a (UCB universe, GCC installed):
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Instead of typing "./configure" to configure, type
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DEFS="-I/usr/include/X11/attinc" ./configure
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to sh to do the configuration.
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1. Run configure with predefined CPP:
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CPP='cc -E' ./configure
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(If your shell is [t]csh, do a "setenv CPP 'cc -E'")
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-add the following to AC_FLAGS:
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Note: Tk's raise test may fail when running the tvtwm window manager.
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Changing to either twm or even better fvwm ensures that this test will
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Encore 91, UMAX V 3.0.9.3:
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1. Modify the CFLAGS definition in Makefile to include -DENCORE:
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2. "mkdir" does not by default create the parent directories. The mkdir
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directives should be modified to "midir -p".
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3. An error of a redeclaration of read, can be resolved by conditionally
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not compiling if an ENCORE system.
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extern int read _ANSI_ARGS_((int fd, char *buf, size_t size));
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Sequent machines running Dynix:
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Contact: Andrew Swan (aswan@soda.berkeley.edu)
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1. Use gcc instead of the cc distributed by Sequent
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2. There are problems with the distributed version of
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<stddef.h>. The easiest solution is probably to create a
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copy of stddef.h, make sure it comes early in the include
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path and then edit it as need be to eliminate conflicts
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with the X11 header files.
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3. The same comments about the tanh function from the notes on
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porting Tcl apply to Tk.
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Systems running Interactive 4.0:
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1. Add "-posix" to CFLAGS in Makefile (or Makefile.in).
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2. Add "-lnsl_s" to LIBS in Makefile (or Makefile.in).
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removed
unix/porting.old
