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- This file contains a collection of notes that various people have
- provided about porting Tcl to various machines and operating systems.
- I don't have personal access to any of these machines, so I make
- no guarantees that the notes are correct, complete, or up-to-date.
- In some cases, a person has volunteered to act as a contact point
- for questions about porting Tcl to a particular machine; in these
- cases the person's name and e-mail address are listed.
-
- ---------------------------------------------
- Cray machines running UNICOS:
- Contact: John Freeman (jlf@cray.com)
- ---------------------------------------------
-
- 1. There is an error in the strstr function in UNICOS such that if the
- string to be searched is empty (""), the search will continue past the
- end of the string. Because of this, the history substitution loop
- will sometimes run past the end of its target string and trash
- malloc's free list, resulting in a core dump some time later. (As you
- can probably guess, this took a while to diagnose.) I've submitted a
- problem report to the C library maintainers, but in the meantime here
- is a workaround.
-
- -----------------------------------------------------------------
- diff -c1 -r1.1 tclHistory.c
- *** 1.1 1991/11/12 16:01:58
- --- tclHistory.c 1991/11/12 16:14:22
- ***************
- *** 23,24 ****
- --- 23,29 ----
- #include "tclInt.h"
- +
- + #ifdef _CRAY
- + /* There is a bug in strstr in UNICOS; this works around it. */
- + #define strstr(s1,s2) ((s1)?(*(s1)?strstr((s1),(s2)):0):0)
- + #endif _CRAY
-
- ---------------------------------------------
- MIPS systems runing EP/IX:
- ---------------------------------------------
-
- 1. Need to add a line "#include <bsd/sys/time.h>" in tclUnix.h.
-
- 2. Need to add "-lbsd" into the line that makes tclTest:
-
- ${CC} ${CFLAGS} tclTest.o libtcl.a -lbsd -o tclTest
-
- ---------------------------------------------
- IBM RS/6000 systems running AIX:
- ---------------------------------------------
-
- 1. The system version of strtoul is buggy, at least under some
- versions of AIX. If the expression tests fail, try forcing Tcl
- to use its own version of strtoul instead of the system version.
- To do this, first copy strtoul.c from the compat subdirectory up
- to the main Tcl directory. Then modify the Makefile so that
- the definition for COMPAT_OBJS includes "strtoul.o". Note: the
- "config" script should now detect the buggy strtoul and substitute
- Tcl's version automatically.
-
- 2. You may have to comment out the declaration of open in tclUnix.h.
-
- 3. You may need to add "-D_BSD -lbsd" to the CFLAGS definition. This
- causes the system include files to look like BSD include files and
- causes C library routines to act like bsd library routines. Without
- this, the system may choke on "struct wait".
-
- ---------------------------------------------
- AT&T 4.03 OS:
- ---------------------------------------------
-
- Machine: i386/33Mhz i387 32k Cache 16MByte
- OS: AT&T SYSV Release 4 Version 3
- X: X11R5 fixlevel 9
- Xserver: X386 1.2
-
- 1. Change the Tk Makefile as follows:
- XLIB = -lX11
- should be changed to:
- XLIB = -lX11 -lsocket -lnsl
-
- -------------------------------------------------------
- Silicon Graphics systems:
- -------------------------------------------------------
-
- 1. Change the CC variable in the Makefile to:
-
- CC = cc -xansi -D__STDC__ -signed
-
- 2. In Irix releases 4.0.1 or earlier the C compiler has a buggy optimizer.
- If Tcl fails its test suite or generates inexplicable errors,
- compile tclVar.c with -O0 instead of -O.
-
- 3. For IRIX 5.1 or later, comments 1 and 2 are no longer relevant,
- but you must add -D_BSD_SIGNALS to CFLAGS to get the proper signal
- routines.
-
- 4. Add a "-lsun" switch in the targets for tclsh and tcltest,
- just before ${MATH_LIBS}.
-
- ---------------------------------------------
- NeXT machines running NeXTStep 3.1:
- ---------------------------------------------
-
- 1. Run configure with predefined CPP:
- CPP='cc -E' ./configure
-
- 2. Edit Makefile:
- -add tmpnam.o to COMPAT_OBJS:
- COMPAT_OBJS = getcwd.o waitpid.o strtod.o tmpnam.o
- -add '-m' to MATH_LIBS
- MATH_LIBS = -m -lm
-
- 3. Edit compat/tmpnam.o and replace "/usr/tmp" with "/tmp"
-
- After this, tcl7.0 will be build fine on NeXT (ignore linker warning)
- and run all the tests. There are some formatting problems in printf() or
- scanf() which come from NeXT's lacking POSIX conformance. Ignore those
- errors, they don't matter much.
-
- -------------------------------------------------
- ISC 2.2 UNIX (using standard ATT SYSV compiler):
- -------------------------------------------------
-
- In Makefile, change
-
- CFLAGS = -g -I. -DTCL_LIBRARY=\"${TCL_LIBRARY}\"
-
- to
-
- CFLAGS = -g -I. -DPOSIX_JC -DTCL_LIBRARY=\"${TCL_LIBRARY}\"
-
- This brings in the typedef for pid_t, which is needed for
- /usr/include/sys/wait.h in tclUnix.h.
-
- ---------------------------------------------
- DEC Alphas:
- ---------------------------------------------
-
- 1. There appears to be a compiler/library bug that causes core-dumps
- unless you compile tclVar.c without optimization (remove the -O compiler
- switch). The problem appears to have been fixed in the 1.3-4 version
- of the compiler.
-
- ---------------------------------------------
- CDC 4680MNP, EP/IX 1.4.3:
- ---------------------------------------------
-
- The installation was done in the System V environment (-systype sysv)
- with the BSD extensions available (-I/usr/include/bsd and -lbsd). It was
- built with the 2.20 level C compiler. The 2.11 level should not be used
- because it has a problem with detecting NaN values in lines like:
- if (x != x) ...
- which appear in the TCL code.
-
- To make the configure script find the BSD extensions, I set environment
- variable DEFS to "-I/usr/include/bsd" and LIBS to "-lbsd" before
- running it. I would have also set CC to "cc2.20", but that compiler
- driver has a bug that loader errors (e.g. not finding a library routine,
- which the script uses to tell what is available) do not cause an error
- status to be returned to the shell.
-
- There is a bug in the <sys/wait.h> include file that mis-defines the
- structure fields and causes WIFEXITED and WIFSIGNALED to return incorrect
- values. My solution was to create a subdirectory "sys" of the main TCL
- source directory and put a corrected wait.h in it. The "-I." already on
- all the compile lines causes it to be used instead of the system version.
- To fix this, compare the structure definition in /usr/include/bsd/sys/wait.h
- with /bsd43/include/sys/wait.h (or mail to John Jackson, jrj@cc.purdue.edu,
- and he'll send you a context diff).
-
- After running configure, I made the following changes to Makefile:
-
- 1) In AC_FLAGS, change:
- -DNO_WAIT3=1
- to
- -DNO_WAIT3=0 -Dwait3=wait2
- EP/IX (in the System V environment) provides a wait2() system
- call with what TCL needs (the WNOHANG flag). The extra parameter
- TCL passes to what it thinks is wait3() (the resources used by
- the child process) is always zero and will be safely ignored.
-
- 3) Change:
- CC=cc
- to
- CC=cc2.20
- because of the NaN problem mentioned earlier. Skip this if the
- default compiler is already 2.20 (or later).
-
- 4) Add "-lbsd" to the commands that create tclsh and tcltest
- (look for "-o").
-
- ---------------------------------------------
- Convex systems, OS 10.1 and 10.2:
- Contact: Lennart Sorth (ls@dmi.min.dk)
- ---------------------------------------------
-
- 1. tcl7.0b2 compiles on Convex systems (OS 10.1 and 10.2) by just running
- configure, typing make, except tclUnixUtil.c needs to be compiled
- with option "-pcc" (portable cc, =!ANSI) due to:
- cc: Error on line 1111 of tclUnixUtil.c: 'waitpid' redeclared:
- incompatible types.
-
- -------------------------------------------------
- Pyramid, OSx 5.1a (UCB universe, GCC installed):
- -------------------------------------------------
-
- 1. The procedures memcpy, strchr, fmod, and strrchr are all missing,
- so you'll need to provide substitutes for them. After you do that
- everything should compile fine. There will be one error in a scan
- test, but it's an obscure one because of a non-ANSI implementation
- of sscanf on the machine; you can ignore it.
-
- 2. You may also have to add "tmpnam.o" to COMPAT_OBJS in Makefile:
- the system version appears to be bad.
-