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 " 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 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.