This patch should be tested on HPUX -- they have a ``test drive'' program.

2003-12-17  Stepan Kasal  <address@hidden>

	* configure.ac: replace AC_CHECK_FUNCS(mbrtowc) with AC_FUNC_MBRTOWC.
	* README_d/README.hpux: Documentation from Michael Elizabeth Chastain.

--- gawk-3.1.3.orig/configure.ac	2003-07-04 19:26:33.000000000 +0200
+++ gawk-3.1.3/configure.ac	2003-12-17 15:47:43.000000000 +0100
@@ -186,9 +186,10 @@
 esac
 
 AC_CHECK_LIB(m, fmod)
-AC_CHECK_FUNCS(fmod getgrent getgroups grantpt mbrlen mbrtowc memcmp \
+AC_CHECK_FUNCS(fmod getgrent getgroups grantpt mbrlen memcmp \
 		memcpy memset setlocale snprintf strchr strerror \
 		strftime strncasecmp strtod system tzset wcrtomb wcscoll)
+AC_FUNC_MBRTOWC()
 
 dnl check for dynamic linking
 dnl This is known to be very primitive
--- gawk-3.1.3.orig/README_d/README.hpux	2002-06-20 16:42:46.000000000 +0200
+++ gawk-3.1.3/README_d/README.hpux	2003-12-17 16:00:55.000000000 +0100
@@ -1,5 +1,35 @@
-Mon, 27 May 2002 17:55:46 +0800
+2003-12-10 15:19:38 EST
+Michael Elizabeth Chastain <address@hidden>
+
+I built and tested gawk on hppa-hp-hpux11.11 and ia64-hp-hpux11.23.
+All the tests in the test suite passed.
+
+I built with these compilers:
+
+  gcc 3.3.2
+  hp ansi C from /opt/ansic/bin
+  hp aCC    from /opt/aCC/bin
+
+I ran into these problems:
+
+  NLS does not work; configure with --disable-nls.
+  -D_XOPEN_SOURCE=500 does not work.
+  Multibyte support is not available.
+
+To get multibyte support, the following ugly hack might work:
+--- gawk-3.1.3.orig/custom.h	2003-06-09 17:45:53.000000000 +0200
++++ gawk-3.1.3/custom.h	2003-12-17 15:55:04.000000000 +0100
+@@ -101,4 +101,7 @@
+ #undef HAVE_TZSET
+ #define HAVE_TZSET 1
+ #define _TZSET 1
++/* an ugly hack: */
++#include <sys/_mbstate_t.h>
++#define HAVE_MBRTOWC 1
+ #endif
+
 -------------------------------
+Mon, 27 May 2002 17:55:46 +0800
 
 The network support "|&" may not work under HP-UX 11.
 An error message appears similar to this: