PATCH: suppress warning on HP-UX (zsh-3.1.5-pws-18)

[Tatsuo Furukawa <frkwtto@xxxxxxxxxxxxxxx>]

Hi, zsh developers.  I made a patch for zsh-3.1.5-pws-18.


In HP-UX, compiler generates many warnings.  Such as:

cc -Aa -D_HPUX_SOURCE -c -I.  -DHAVE_CONFIG_H -O  -o signals.o signals.c
cpp: "stdsyms.h", line 10: warning 2001: Redefinition of macro _INCLUDE_POSIX_SOURCE.
cpp: "stdsyms.h", line 12: warning 2001: Redefinition of macro _INCLUDE_XOPEN_SOURCE.
cpp: "stdsyms.h", line 14: warning 2001: Redefinition of macro _INCLUDE_HPUX_SOURCE.
cc -Aa -D_HPUX_SOURCE -c -I.  -DHAVE_CONFIG_H -O  -o signames.o signames.c
cpp: "stdsyms.h", line 10: warning 2001: Redefinition of macro _INCLUDE_POSIX_SOURCE.
cpp: "stdsyms.h", line 12: warning 2001: Redefinition of macro _INCLUDE_XOPEN_SOURCE.
cpp: "stdsyms.h", line 14: warning 2001: Redefinition of macro _INCLUDE_HPUX_SOURCE.
cc -Aa -D_HPUX_SOURCE -c -I.  -DHAVE_CONFIG_H -O  -o subst.o subst.c
cpp: "stdsyms.h", line 10: warning 2001: Redefinition of macro _INCLUDE_POSIX_SOURCE.
cpp: "stdsyms.h", line 12: warning 2001: Redefinition of macro _INCLUDE_XOPEN_SOURCE.

These macros are defined in HP-UX automatically if _HPUX_SOURCE macro
is defined. (Please refer /usr/include/sys/stdsyms.h)

And zsh defines _HPUX_SOURCE macro.  So these macro doesn't have to
define at zsh side.

Here is the patch:

diff -ur zsh-3.1.5-pws-18.orig/Src/system.h zsh-3.1.5-pws-18/Src/system.h
--- zsh-3.1.5-pws-18.orig/Src/system.h  Mon Mar  1 18:46:51 1999
+++ zsh-3.1.5-pws-18/Src/system.h       Wed May 12 12:08:50 1999
@@ -27,12 +27,6 @@
  *
  */

-#ifdef __hpux
-# define _INCLUDE_POSIX_SOURCE 1
-# define _INCLUDE_XOPEN_SOURCE 1
-# define _INCLUDE_HPUX_SOURCE 1
-#endif
-
 #ifdef sinix
 # define _XPG_IV 1
 #endif

-- 
Tatsuo Furukawa  (frkwtto@xxxxxxxxxxxxxxx)