Ok, downloaded vim73 and got this:

creating auto/pathdef.c
cc -c -I. -Iproto -DHAVE_CONFIG_H -g -D_ALL_SOURCE -Wc,float\(IEEE\) -o
objects/pathdef.o auto/pathdef.c
WARNING CCN3296 ./os_unix.h:60    #include file <libc.h> not found.
WARNING CCN3296 ./os_unix.h:64    #include file <sys/param.h> not found.
ERROR CCN3275 ./auto/pathdef.c:5     Unexpected text '/' encountered.
ERROR CCN3045 ./auto/pathdef.c:5     Undeclared identifier usr.
ERROR CCN3045 ./auto/pathdef.c:5     Undeclared identifier local.
ERROR CCN3045 ./auto/pathdef.c:5     Undeclared identifier share.
ERROR CCN3045 ./auto/pathdef.c:5     Undeclared identifier vim.
ERROR CCN3046 ./auto/pathdef.c:5     Syntax error.
ERROR CCN3221 ./auto/pathdef.c:5     Initializer must be a valid constant
expression.
ERROR CCN3045 ./auto/pathdef.c:7     Undeclared identifier cc.
ERROR CCN3045 ./auto/pathdef.c:7     Undeclared identifier c.
ERROR CCN3275 ./auto/pathdef.c:7     Unexpected text '-' encountered.
ERROR CCN3045 ./auto/pathdef.c:7     Undeclared identifier I.
ERROR CCN3045 ./auto/pathdef.c:7     Undeclared identifier DHAVE_CONFIG_H.
ERROR CCN3045 ./auto/pathdef.c:7     Undeclared identifier g.
ERROR CCN3045 ./auto/pathdef.c:7     Undeclared identifier D_ALL_SOURCE.
ERROR CCN3045 ./auto/pathdef.c:7     Undeclared identifier Wc.
ERROR CCN3221 ./auto/pathdef.c:7     Initializer must be a valid constant
expression.
ERROR CCN3046 ./auto/pathdef.c:7     Syntax error.
ERROR CCN3045 ./auto/pathdef.c:8     Undeclared identifier Wl.
ERROR CCN3221 ./auto/pathdef.c:8     Initializer must be a valid constant
expression.
ERROR CCN3045 ./auto/pathdef.c:8     Undeclared identifier NO.
ERROR CCN3045 ./auto/pathdef.c:8     Undeclared identifier o.
ERROR CCN3221 ./auto/pathdef.c:8     Initializer must be a valid constant
expression.
ERROR CCN3277 ./auto/pathdef.c:8     Syntax error: possible missing ';' or
','?
CCN0793(I) Compilation failed for file ./auto/pathdef.c.  Object file not
created.
FSUM3065 The COMPILE step ended with return code 12.
FSUM3017 Could not compile auto/pathdef.c. Correct the errors and try again.
FSUM8226 make: Error code 3

That's because pathdef.c contains:

/* pathdef.c */
/* This file is automatically created by Makefile
 * DO NOT EDIT!  Change Makefile only. */
#include "vim.h"
char_u *default_vim_dir = (char_u *)&/usr/local/share/vim&;
char_u *default_vimruntime_dir = (char_u *)&&;
char_u *all_cflags = (char_u *)&cc -c -I. -Iproto -DHAVE_CONFIG_H -g
-D_ALL_SOURCE -Wc,float&(IEEE&)&;
char_u *all_lflags = (char_u *)&cc  -Wl,EDIT=NO -o vim             -lm
-lcurses &;
char_u *compiled_user = (char_u *)"DGRIFF";
char_u *compiled_sys = (char_u *)"WINMVS3C.HURSLEY.IBM.COM";

Makefile has (eg):

echo 'char_u *default_vim_dir = (char_u *)"$(VIMRCLOC)";' | $(QUOTESED) >>
$@

where

QUOTESED = sed -e 's/[\\"]/\\&/g' -e 's/\\"/"/' -e 's/\\";$$/";/'

no idea yet why it is replacing " with &.

Cheers,

Dave

2010/9/8 Dominique PellĂ© <[email protected]>

> Dave Griffiths <[email protected]> wrote:
>
> > Hi, just tried building vim on z/OS as described here:
> > http://vimdoc.sourceforge.net/htmldoc/os_390.html. It fails on
> > compiling regexp:
> >
> > cc -c -I. -Iproto -DHAVE_CONFIG_H -g -D_ALL_SOURCE -o objects/regexp.o
> > regexp.c
> > ERROR CCN3052 ./regexp.c:748   Duplicate case label for value 193.
> > Labels must be unique.
> > ERROR CCN3052 ./regexp.c:754   Duplicate case label for value 195.
> > Labels must be unique.
> > [etc]
> >
> > According to configure it has recognized that this is a z/OS (OS/390)
> > machine.
> >
> > It appears as though it is trying to compile in native ebcdic mode. So
> > when it sees this:
> >
> > case 'A': case '\300': case '\301': case '\302':
> >
> > 'A' in ebcdic is decimal 193, the same as octal 301. Is it intended
> > that vim is compiled using the ebcdic code page?
> >
> > Thanks,
> >
> > Dave
>
> This code (case 'A': case '\300': case '\301': case '\302':)
> in regex.c is in the #else section of #ifdef EBCDIC.
>
> On z/OS, I'm pretty sure EBCDIC should be #define/d so
> this line should not even be compiled.  Now the question
> is: why EBCDIC is not defined for you?
>
> What does configure say after...
> checking if character set is EBCDIC...
> ?
>
> Also, which version of Vim are you using?  I'm asking because
> your error message gives line regexp.c:748, but for me, using
> the latest version of Vim from Mercurial, the case 'A' (...) is
> at line regexp.c:789.
>
> You should download the the latest version of Vim (7.3.003)
> since patches for z/OS have been included in version-7.3.
> See ":help version-7.3" which says...
>
> Add patch to improve support of z/OS (OS/390). (Ralf Schandl)
>
> Regards
> -- Dominique
>
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