ULTRIX 3.1D

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ULTRIX 3.1D

ULTRIX release 3.1D was a special hardware release to support the then new DECstation 5000/200. It will run on some early DECstations like the original 3100 and 2100, 5000/200, and possibly on the 5400 and 5800. It is mostly 4.2BSD with several extensions by DEC and adaptations from SysV and 4.3BSD. The 5000/200 does not have room for internal SCSI disks, so external disks and storage expansion boxes were common.


DECstation 5000/200

Ultrix 3.1D comes with X11R3(exact version?) and only a simple X that only supports the plain color graphics (DS3100 or PMAG-B). Replace with X11R4:

"The XtPointer typedef was added to X11 with Release 4.  This error
indicates that your system has X11R3 or earlier.  You need to update to
a more recent edition of X in order to compile NetHack's X11 interface."

copy stddef.h from ULTRIX 4.5...


show all soft/hard errors:

uerf -c err

On ultrix 4.2 we don't have usleep()

in the file clients/olwm/usleep.c

replace the line

return usleep(usec);

with

#ifndef ultrix
return usleep(usec);
#else
return sleep(usec * 1000000);
#endif

to enable root logins via telnet or non-secure ports, edit /etc/ttys:

root@minou:/etc# cat ttys 
# @(#)ttys	1.1 (ULTRIX) 3/2/89
#
#
#
# name	getty		type		status		comments
#
console	"/etc/getty std.9600" vt100 on	secure	# console terminal
tty00	"/etc/getty std.9600" vt100 on secure nomodem	# direct connect tty
tty01	"/etc/getty std.9600" vt100 off secure nomodem	# direct connect tty
tty02	"/etc/getty std.9600" vt100 off secure nomodem	# direct connect tty
tty03	"/etc/getty std.9600" vt100 off secure nomodem	# direct connect tty
tty04	"/etc/getty std.9600" vt100 off secure nomodem	# direct connect tty
tty05	"/etc/getty std.9600" vt100 off secure nomodem	# direct connect tty
tty06	"/etc/getty std.9600" vt100 off secure nomodem	# direct connect tty
tty07	"/etc/getty std.9600" vt100 off secure nomodem	# direct connect tty
ttyd0   "/etc/getty std.9600" vt100 off shared secure # modem line
ttyp0	none		network secure
ttyp1	none		network secure
ttyp2	none		network secure
ttyp3	none		network secure
ttyp4	none		network secure
ttyp5	none		network secure
ttyp6	none		network secure
ttyp7	none		network secure
ttyp8	none		network secure
ttyp9	none		network secure
ttypa	none		network secure
ttypb	none		network secure
ttypc	none		network secure
ttypd	none		network secure
ttype	none		network secure
ttypf	none		network secure
ttyq0	none		network secure
ttyq1	none		network secure
ttyq2	none		network secure
ttyq3	none		network secure
ttyq4	none		network secure
ttyq5	none		network secure
ttyq6	none		network secure
ttyq7	none		network secure
ttyq8	none		network secure
ttyq9	none		network secure
ttyqa	none		network secure
ttyqb	none		network secure
ttyqc	none		network secure
ttyqd	none		network secure
ttyqe	none		network secure
ttyqf	none		network secure
# :0 "/usr/bin/login -P /usr/bin/Xprompter -C /usr/bin/dxsession" none on secure window="/usr/bin/Xcfb"

add to /etc/rc.local:

# default route
echo 'setting default route' > /dev/console
/etc/route add default 192.168.2.253 1
# SSHd
echo 'starting SSH daemon' > /dev/console
/usr/local/sbin/sshd

error in repaired Ultrix gcc header files:

/usr/local/lib/gcc-lib/mips-dec-ultrix3.1/2.7.2.3/include/sys/dir.h

gcc fixes this to u_long, but does not define it. Add:

#include <sys/types.h>

in many cases, config.guess can't detect the platform. Specify as mips-dec-ultrix3.1


size_t is declared in <sys/types.h>

Ultrix also often needs:

#define NULL 0

.cshrc:

if ($term == xterm-256color) then
setenv TERM vt100
endif

.bashrc:

# set a fancy prompt
PS1='\u@\h:\w\$ '
export PS1

.profile

if [ $TERM = "xterm-256color" ]
then TERM=vt100; export TERM
fi

symlink /usr/lib/libi.a to /usr/lib/libiconv_ult.a if setlocale is undefined link with this library for some reason gcc doesn't want to link just to libi.a


strstr.c from GNU tar... copy to /usr/include/missing_strstr.h

/* strstr.c -- return the offset of one string within another
Copyright (C) 1989, 1990 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
/* Written by Mike Rendell <michael@cs.mun.ca>.  */
/* Return the starting address of string S2 in S1;
  return 0 if it is not found. */
char *
strstr (s1, s2)
    char *s1;
    char *s2;
{
 int i;
 char *p1;
 char *p2;
 char *s = s1;
 for (p2 = s2, i = 0; *s; p2 = s2, i++, s++)
   {
     for (p1 = s; *p1 && *p2 && *p1 == *p2; p1++, p2++)
       ;
     if (!*p2)
       break;
   }
 if (!*p2)
   return s1 + i;
 return 0;
}

Building some GNU software:

GCC:

start with gcc-1.42 use gcc to build some older version of tools: sed-1.18, gawk1, bison-1.25, make-3.75 use gcc1 to build gcc2

ultrix 3 doesn't know about atexit(). Remove HAVE_ATEXIT before building gcc.

build gcc in steps:

make "CC=/usr/local/bin/gcc" LANGUAGES=c
make stage1
make CC="stage1/xgcc -Bstage1/" CFLAGS="-g -O"
make stage2
make CC="stage2/xgcc -Bstage2/" CFLAGS="-g -O"
make compare
make install CC="stage2/xgcc -Bstage2/" CFLAGS="-g -O" LANGUAGES=c


gcc-2.3.3 typedefs size_t to long unsigned int in /usr/local/lib/gcc-lib/mips-dec-ultrix3.1/2.3.3/include/stddef.h

/usr/include/sys/types.h defines size_t as "int"

add something like this in both header files: note: changing original 25 year old header files is really ugly

#ifndef size_t_defined
typedef int size_t;
#define size_t_defined
#endif


binutils 2.7 incorrectly includes stdlib.h in binutils-2.7/binutils/arlex.c on line 556. and in binutils-2.7/ld/ldlex.c on line 1212.


gcc-2.7.2.3 incorrectly includes stdlib.h in ../gcc-2.7.2.3/cpplib.c on line 73.


sed-3.02 add to sed/utils.h: #include <sys/types.h>

make-3.76

texinfo-4.8: add to lib/strdup.c: #include <sys/types.h> #define NULL 0 needs #include <missing_strstr.h>

unzip-5.52: filio.c needs #include <missing_strerror.h> make ultrix

bison-1.28

vim-4.6: main.c #include <ctype.h> #include <locale.h> add EXTRA_LIBS = -liconv (see above for /usr/lib/libi.a)

m4-1.4.3: --disable-nls

bash-2.03: --disable-nls save /bin/sh to /bin/sh.ultrix copy /usr/local/bin/bash to /bin/bash and /bin/sh '''zlib-1.2.8:''' does not copy zlib.h and zconf.h Copy by hand! '''readline-5.2:''' xmalloc.h: #include <sys/types.h> time_t lives in <sys/types.> history.h: #include <sys/types.h> wants to build shared libraries for some reason. Edit Makefile and remove TARGETS = shared and INSTALL_TARGETS = install-shared

libiconv-1.9.2: --disable-nls srclib/setenv.c: srclib/unsetenv.c: add #include <sys/types.h>

tin-2.4.4: pcre/dftables.c: Ultrix fopen() doesn't understand argument "wb". Change to "w+" add to pcre/pcre_globals.c: #include <sys/types.h> extern void *malloc(size_t); extern void *realloc(void *, size_t); extern void free(void *);

bash-2.05b: --with-readline --with-installed-readline --disable-nls


pdksh-5.2.14: --disable-emacs


m4-1.4.5: regcomp.c Ultrix 3 doesn't know about MB_CUR_MAX #define MB_CUR_MAX 1 regcomp.c vasnprintf.c lib/error.c: add: #include <missing_strerror.h> lib/regex_internal.c: add: old m4-1.4.3/src/stackovf.c: vec.sv_flags = (SV_ONSTACK #ifdef SV_RESETHAND | SV_RESETHAND #endif ); new m4-1.4.5/src/stackovf.c: vec.sv_flags = (SV_ONSTACK | SV_RESETHAND); backport: vec.sv_flags = (SV_ONSTACK #ifdef SV_RESETHAND | SV_RESETHAND #endif ); some tests fail with doc/m4.texinfo. This is known. Ignore.

gawk-3.0.6: --disable-nls


make-3.77: glob/fnmatch.c: #include <sys/types.h> #define NULL 0 function.c and job.c: #ifndef remove #define remove unlink #endif remove() should remove both files and directories. unlink() only removes files.

bash-2.05: locale.c: #include <ctype.h> #include <locale.h> #define NULL 0

gcc-2.8.1: FAIL incorrectly includes stdlib.h change HAVE_STDLIB_H in auto-config.h to #undef HAVE_STDLIB_H change #define HAVE_STDDEF_H 1 to #undef HAVE_STDDEF_H Makefile insists on using OLDCC as the MIPS C compiler override host overrides... Not sure if this is a good idea... FAILs compiling enquire.c with ./xgcc


patch-2.5.9: dirname.h: #include <sys/types.h> config.h #define HAVE_STRUCT_UTIMBUF 1


perl-5.004: FAIL Configure -Dcc=gcc to use gcc

In file included from doio.c:21:
/usr/include/sys/ipc.h:14: redefinition of `struct ipc_perm'
In file included from doio.c:26:
/usr/include/sys/sem.h:91: redefinition of `struct semid_ds'
/usr/include/sys/sem.h:103: redefinition of `struct sem'
/usr/include/sys/sem.h:114: redefinition of `struct sem_undo'
/usr/include/sys/sem.h:117: redefinition of `struct undo'
/usr/include/sys/sem.h:127: redefinition of `struct seminfo'
/usr/include/sys/sem.h:144: redefinition of `struct sembuf'
make: *** [doio.o] Error 1

compilation FAILED


gcc-2.95.3: FAIL get libio patch copy patch to libio dir apply patch like: /usr/local/bin/patch < libio_patch.txt configure --disable-nls --with-libiconv-prefix=/usr/local --enable-languages=c,c++ mips-dec-ultrix3.1 incorrectly includes stdlib.h change HAVE_STDLIB_H in auto-config.h to #undef HAVE_STDLIB_H change #define HAVE_STDDEF_H 1 to #undef HAVE_STDDEF_H libiberty/config.h #undef HAVE_ATEXIT #define NEED_ATEXIT 1 change in libiberty/config.h gcc/auto-host.h

FAILS in stage1:

ln -s .././../gcc-2.95.3/gcc/../libiberty/obstack.c obstack.c
stage1/xgcc -Bstage1/ -B/usr/local/mips-dec-ultrix3.1/bin/ -c  -DIN_GCC     -O2 -g -O2  -DHAVE_CONFIG_H    -I. -I.././../gcc-2.95.3/gcc -I.././../gcc-2.95.3/gcc/config -I.././../gcc-2.95.3/gcc/../include obstack.c
stage1/xgcc -Bstage1/ -B/usr/local/mips-dec-ultrix3.1/bin/  -DIN_GCC     -O2 -g -O2  -DHAVE_CONFIG_H  -o gencheck \
gencheck.o ` case "obstack.o" in ?*) echo obstack.o ;; esac ` ` case "" in ?*) echo  ;; esac ` ` case "" in ?*) echo  ;; esac `  `  case "" in ?*) echo  ;; esac ` ` case "" in ?*) echo  ;; esac ` 
stage1/libgcc.a(__main.o): In function `__do_global_ctors':
/usr/local/compile/gcc-2.95.3bin/gcc/.././../gcc-2.95.3/gcc/libgcc2.c(.text+0xf0): undefined reference to `atexit'
collect2: ld returned 1 exit status
make[2]: *** [gencheck] Error 1
make[2]: Leaving directory `/usr/local/compile/gcc-2.95.3bin/gcc'
make[1]: *** [bootstrap] Error 2
make[1]: Leaving directory `/usr/local/compile/gcc-2.95.3bin/gcc'
make: *** [bootstrap] Error 2


bzip2-1.0.6: change all remove() to unlink() in bzip2.c #include <missing_strstr.h> #include <missing_memmove.h> #include <missing_strerror.h> delete "-f" from Makefile fopen() doesn't know about the argument rb or wb. Change to r+ an w+ also check for other open() like bzopen()


make-3.79.1: glob/fnmatch.c: #include <sys/types.h> #define NULL 0 do not strip the make binary. this breaks make. function.c and job.c: #ifndef remove #define remove unlink #endif fix like make-3.77. Works.

bash-3.2: needs #include <sys/time.h> in readline/history.h needs a few #inlcude <sys/types.h> for undefined size_t etc. #undef HAVE_LOCAL_H strftime.c #include <sys/types.h> #include <time.h> #include <sys/time.h> Ultrix 3 does only have tzset() in a kernel sysV Envrionment. It is only used in strftime.c, so uncomment all tzset().

jpeg-6b: just plain compile. Do not use libtool. Libtool will fail. The rest works and builds fine.


jasper-1.900.1: FAIL src/libjasper/include/jasper: #include <sys/types.h> extern void *malloc(size_t); extern void *realloc(void *, size_t); extern void free(void *); #define EXIT_FAILURE 1 /* Failing exit status. */ #define EXIT_SUCCESS 0 /* Successful exit status. */ imgcmp.c imginfo.c jasper.c jiv.c


mips-dec-ultrix3.1-gcc -g -O2 -o jasper jasper.o  ../libjasper/.libs/libjasper.a -lm  
../libjasper/.libs/libjasper.a(jas_init.o): In function `jas_init':
jas_init.c:154: undefined reference to `atexit'
../libjasper/.libs/libjasper.a(jas_image.o): In function `jas_image_delcmpt':
jas_image.c:649: undefined reference to `memmove'
../libjasper/.libs/libjasper.a(jas_image.o): In function `jas_image_addcmpt':
jas_image.c:676: undefined reference to `memmove'
../libjasper/.libs/libjasper.a(jas_image.o): In function `jas_image_copycmpt':
jas_image.c:803: undefined reference to `memmove'
../libjasper/.libs/libjasper.a(jas_cm.o): In function `jas_cmpxformseq_insertpxform':
jas_cm.c:669: undefined reference to `memmove'
../libjasper/.libs/libjasper.a(jas_icc.o): In function `jas_iccattrtab_add':
jas_icc.c:775: undefined reference to `memmove'
../libjasper/.libs/libjasper.a(jas_icc.o):jas_icc.c:809: more undefined references to `memmove' follow
make[2]: *** [jasper] Error 1
make[2]: Leaving directory `/usr/local/compile/jasper-1.900.1/src/appl'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/compile/jasper-1.900.1/src'
make: *** [all-recursive] Error 1

FAILS


ncurses-5.9: FAIL ncurses needs to link with libiconv_ult because of setlocale. Thomas Dickey proposed setting before configure in the shel environment: LIBS="$LIBS -liconv_ult"; export LIBS fails in form/fty_num.c because of possibly ancient locale.h uncomment this IF: #if HAVE_LOCALE_H #define isDecimalPoint(c) ((c) == ((L && L->decimal_point) ? *(L->decimal_point) : '.')) use: #define isDecimalPoint(c) ((c) == '.') also uncomment: #if HAVE_LOCALE_H argn->L = localeconv(); #else use: argn->L = NULL; test/dots.c test/dots_mvcur.c #define STDOUT_FILENO 1 /* Standard output. */ test/ncurses.c #include <missing_strstr.h> test/railroad.c #define STDOUT_FILENO 1 /* Standard output. */ FAILS with tic -x. Probably some unfixed fopen() calls in the sources... do a "find . -print | xargs grep fopen" and fix fopen arguments still FAILS and can't open terminals.


libtool-1.5.24: FAIL ltdl.c: add: #include <sys/types.h> extern void *malloc(size_t); extern void *realloc(void *, size_t); extern void free(void *); FAILS several test. Don't install

fileutils-4.1: lib/quotearg.h: #include <sys/types.h> lib/dirname.c: #include <sys/types.h> lib/mbswidth.h #include <sys/types.h> lib/xalloc.h #include <sys/types.h> lib/strnlen.c #include <sys/types.h> src/ls.c: extern int strcoll( const char *__s1, const char *__s2 ); strcoll lives in /usr/lib/libiconv_ult! man/Makefile missing perl wrong. remove man from Makefile rest seems to work fine. do not strip the fileutils binaries. This breaks some of the tools.

top-3.1: unpack to new dir! build for 43bsd. install group as bin.

libpng-1.0.39: png.c: #include <missing_snprintf.h> fix fopen() argument rb and wb to r+ and w+ pngtest.c example.c


gs6.01: FAIL fix fopen() argument rb and wb to r+ and w+ in many files

/usr/include/strings.h:56: conflicting types for `strspn'
/usr/local/lib/gcc-lib/mips-dec-ultrix3.1/2.7.2.3/include/string.h:64: previous declaration of `strspn'
/usr/include/strings.h:57: conflicting types for `strcspn'
/usr/local/lib/gcc-lib/mips-dec-ultrix3.1/2.7.2.3/include/string.h:65: previous declaration of `strcspn'
./src/gp_unifs.c: In function `gp_enumerate_files_init':
./src/gp_unifs.c:206: warning: implicit declaration of function `memcpy'
./src/gp_unifs.c: In function `gp_enumerate_files_next':
./src/gp_unifs.c:311: warning: function `memcpy' was previously declared within a block
./src/gp_unifs.c:313: warning: function `memcpy' was previously declared within a block
./src/gp_unifs.c:317: warning: function `memcpy' was previously declared within a block
./src/gp_unifs.c:329: warning: implicit declaration of function `stat'
./src/gp_unifs.c:402: warning: function `memcpy' was previously declared within a block
make: *** [obj/gp_unifs.o] Error 1

extern unsigned int vs extern int. fix /usr/local/lib/gcc-lib/mips-dec-ultrix3.1/2.7.2.3/include/string.h to extern int. FAILS.

libidn-1.26: FAIL gl/version-etc.h #include <sys/types.h> lib/tld.c lib/tlds.c #define NULL 0 src/idn.c src/idn_cmd.c #define EXIT_FAILURE 1 /* Failing exit status. */ #define EXIT_SUCCESS 0 /* Successful exit status. */ lib/punycode.c #include <missing_memmove.h> change Makefile and src/Makefile LIBS = -liberty -liconv_ult lib/stringprep.h: typedef int ssize_t; make without doc SUBDIR, because we don't have perl (yet)... FAILs still...

vim-5.8: FAIL --enable-gui=no --disable-gpm --without-x mips-dec-ultrix3.1 ex_docmd.c: #include <missing_strstr.h> link with -liconv_ult, because setlocale is undefined does not work with --with-tlib=ncurses! let it autodetect termlib check config.mk: LIBS = -ltermlib -liconv_ult doesn't do anything: src/main.c src/os_unix.c #define STDOUT_FILENO 1 /* Standard output. */ FAILS: does not work correctly. Crashes often...

ssh-1.2.32: compile with X11R4 for --with-x to work! without X11R4 use configure --without-x

change in config.h:

#undef HAVE_ULTRIX_SHADOW_PASSWORDS


tcl-7.3 and tk-3.6: build both in parallel. tk needs to have tcl in the same dir to build! use gcc tkWm.c: In function `TkWmMapWindow': tkWm.c:447: `WithdrawnState' undeclared (first use this function) from linux standard base 4.0: This should be in Xutils.h in well behaved systems: #define WithdrawnState 0 lives in X11/Xutil.h in X11R4!

X11R4: unpack the distribution files: cat *.?? | uncompress | (cd /home/X11R4/; tar xvf -) some include files seem to live in /usr/include/X11/Xaw, but appear to be expected in /usr/include/X11... fix like: cd /usr/include; ln -s Xaw/Form.h ./ building the core X11 distribution works best with ULTRIX /bin/make building contribs may need GNU make xconsole: errors with line wraps... xlock: life.c: sleep(delay * 1000000000); X11R4 seems to work fine. Rebuild packages using X with X11R4... remove /usr/local/lib/gcc-lib/mips-dec-ultrix3.1/2.7.2.3/include/X11/Intrinsic.h

xpm-3.4k: use Makefile.noX change CC=cc to gcc change XpmI.h remove #include <stdlib.h> add #include <sys/types.h> FAILS because no X11/extensions/shape.h CrDatFrI.c: missing s += strlen(s); at various points scan.c(.text+0x668): undefined reference to `strdup': link with -liberty change installation directory to /usr... not /usr/local libXpm.a is not correctly installed. Copy by hand to /usr/lib!

libungif-4.1.4: fix fopen arguments util/gif2epsn.c util/gif2ps.c util/gif2rgb.c util/gifasm.c util/gifbg.c util/gifclip.c util/gifcomb.c util/giffix.c util/gifflip.c util/gifhisto.c util/gifinter.c util/gifinto.c util/gifovly.c util/gifpos.c util/gifrsize.c util/giftext.c util/gifwedge.c util/raw2gif.c util/rgb2gif.c util/text2gif.c util/gifspnge.c util/giffiltr.c util/icon2gif.c util/gifcolor.c util/gifinfo.c util/gifclrmp.c util/gifrotat.c util/gif2x11.c #define EXIT_FAILURE 1 /* Failing exit status. */ #define EXIT_SUCCESS 0 /* Successful exit status. */ link text2gif with -liberty, because it needs strdup(): text2gif.o: In function `main': text2gif.c(.text+0x2e0): undefined reference to `strdup' root@minou:/usr/local/compile/libungif-4.1.4/util# mips-dec-ultrix3.1-gcc -I/usr/local/include -Wall -I/usr/local/include -o text2gif text2gif.o -L/usr/local/lib ../lib/.libs/libungif.a -L/usr/lib -lX11 -liberty ../lib/libgetarg.a


ghostscript-5.01: FAIL fix fopen() gs16spl.c gp_os2.c gp_mswin.c gp_iwatc.c gp_dvx.c gdevcgm.c add to compile flags: -DBSD4_2 adapt makefile does not work with X11R3? Works with X11R4. gdevxini.c:55: `XtPointer' undeclared here (not in a function) gdevxini.c:55: initializer element for `resources[0].default_addr' is not constant gdevxini.c:119: `XtRFloat' undeclared here (not in a function) gdevxini.c:119: initializer element for `resources[18].resource_type' is not constant gdevxini.c: #include <X11/Xlib.h> #include <X11/StringDefs.h> still FAILS


t1lib-5.1.2: /lib/type1/t1io.c: #include <missing_strstr.h> fix fopen() bugs in various files strftime-strftime-release-7.0: provides a replacement for strftime(). ULTRIX only provides tzset in a SystemV environment. Delete all lines with tzset. copy strftime.c to /usr/include/missing_strftime.h Surprise! strftime() also exists in libiconv_ult!


freetype-2.1.10: src/base/ftsystem.c: #include <unistd.h> fix fopen() bugs in various files include/freetype/config/ftstdlib.h: #include <setjmp.h> include/freetype/internal/ftvalid.h: #include <setjmp.h> parse error in /usr/local/compile/freetype-2.1.10/include/freetype/internal/ftvalid.h FAILS. No solution yet.


xearth-1.1: do xmkmf and then edit the Makefile needs strftime(). Link with -liconv_ult


xbill-1.1: FAIL do xmkmf and then edit the Makefile use Xaw instead of Motif. library hell. Lots of undefined X references... FAILS. Maybe does not work with X11R4?


fvwm-1.24r: use gcc do xmkmf and edit all the Makefiles... modules/FvwmSave/FvwmSave.c: modules/FvwmSaveDesk/FvwmSaveDesk.c: fvwm/fvwm.c: #include <missing_strstr.h> copy sample.fvwmrc to /usr/local/share


mutt-1.4.2.3: FAIL ./configure --disable-nls --with-libiconv-prefix=/usr/local --without-wc-funcs mips-de-ultrix3.1 makedoc.c: sy/stat.h cannot be included twice. remove from lib.h. FAILs


zsh-4.3.10: Src/utils.c: #define MB_CUR_MAX 1