Add SUSv2 compatible fcvt() function ripped from glibc. fcvt() is required by

some internal Clanlib's function (fortunately rarely used, which allowed several
clanlib-based ports live w/o it).

Prompted by:	alex (quite some time ago)

3 files changed, 169 insertions, 3 deletions

diff --git a/devel/clanlib/Makefile b/devel/clanlib/Makefile
index 919b1dbe2362..fbcc11a78a8a 100644
--- a/devel/clanlib/Makefile
+++ b/devel/clanlib/Makefile
@@ -7,6 +7,7 @@
 
 PORTNAME=	clanlib
 PORTVERSION=	0.4.4
+PORTREVISION=	1
 CATEGORIES=	devel
 MASTER_SITES=	http://dark.x.dtu.dk/~mbn/clanlib/download/
 DISTNAME=	ClanLib-${PORTVERSION}
diff --git a/devel/clanlib/files/patch-Sources_Util_fcvt.c b/devel/clanlib/files/patch-Sources_Util_fcvt.c
new file mode 100644
index 000000000000..ed8898b293af
--- /dev/null
+++ b/devel/clanlib/files/patch-Sources_Util_fcvt.c
@@ -0,0 +1,145 @@
+
+$FreeBSD$
+
+--- /dev/null	Wed Jan 10 00:32:20 2001
++++ Sources/Util/fcvt.c	Wed Jan 10 00:31:59 2001
+@@ -0,0 +1,139 @@
++/* Compatibility functions for floating point formatting, reentrant versions.
++   Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
++   This file is part of the GNU C Library.
++
++   The GNU C Library is free software; you can redistribute it and/or
++   modify it under the terms of the GNU Library General Public License as
++   published by the Free Software Foundation; either version 2 of the
++   License, or (at your option) any later version.
++
++   The GNU C Library 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
++   Library General Public License for more details.
++
++   You should have received a copy of the GNU Library General Public
++   License along with the GNU C Library; see the file COPYING.LIB.  If not,
++   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
++   Boston, MA 02111-1307, USA.  */
++
++#include <ctype.h>
++#include <errno.h>
++#include <float.h>
++#include <math.h>
++#include <stdio.h>
++#include <string.h>
++#include <sys/param.h>
++
++extern int errno;
++
++#if DBL_MANT_DIG == 53
++#  define NDIGIT_MAX 17
++#else
++/* 
++ * See IEEE 854 5.6, table 2 for this formula.  Unfortunately we need a
++ * compile time constant here, so we cannot use it.
++ */
++#  error "NDIGIT_MAX must be precomputed"
++#  define NDIGIT_MAX (lrint (ceil (M_LN2 / M_LN10 * DBL_MANT_DIG + 1.0)))
++#endif
++#define MAXDIG (NDIGIT_MAX + 3)
++#define signbit(x) (((x)<(0))?(1):(0))
++
++static char *FCVT_BUFFER[MAXDIG];
++
++static int fcvt_r(double value, int ndigit, int *decpt, int *sign, char *buf, \
++                  size_t len)
++{
++  int n, i;
++  int left;
++
++  if (buf == NULL)
++  {
++    errno = EINVAL;
++    return -1;
++  }
++
++  left = 0;
++  if (finite(value))
++  {
++    *sign = signbit(value) != 0;
++    if (*sign)
++      value = -value;
++
++    if (ndigit < 0)
++    {
++
++      while (ndigit < 0)
++      {
++	double  new_value = value * 0.1;
++
++	if (new_value < 1.0)
++	{
++	  ndigit = 0;
++	  break;
++	}
++
++	value = new_value;
++	++left;
++	++ndigit;
++      }
++    }
++  }
++  else
++    *sign = 0;
++
++  n = snprintf(buf, len, "%.*f", MIN(ndigit, NDIGIT_MAX), value);
++   
++  if (n >= len)
++    return -1;
++
++  i = 0;
++  while (i < n && isdigit(buf[i]))
++    ++i;
++  *decpt = i;
++
++  if (i == 0)
++    return 0;
++
++  if (i < n)
++  {
++    do
++      ++i;
++    while (i < n && !isdigit(buf[i]));
++
++    if (*decpt == 1 && buf[0] == '0' && value != 0.0)
++    {
++      --*decpt;
++
++      while (i < n && buf[i] == '0')
++      {
++	--*decpt;
++	++i;
++      }
++    }
++
++    memmove(&buf[MAX(*decpt, 0)], &buf[i], n - i);
++    buf[n - (i - MAX(*decpt, 0))] = '\0';
++  }
++
++  if (left)
++  {
++    *decpt += left;
++    if (--len > n)
++    {
++      while (left-- > 0 && n < len)
++        buf[n++] = '0';
++      buf[n] = '\0';
++    }
++  }
++
++  return 0;
++}
++
++char *fcvt(double value, int ndigit, int *decpt, int *sign)
++{
++  fcvt_r(value, ndigit, decpt, sign, (char *)FCVT_BUFFER, MAXDIG);
++  return (char *)FCVT_BUFFER;
++}
++
diff --git a/devel/clanlib/files/patch-ah b/devel/clanlib/files/patch-ah
index 5b00b0fe629e..33e55013fcde 100644
--- a/devel/clanlib/files/patch-ah
+++ b/devel/clanlib/files/patch-ah
@@ -1,6 +1,26 @@
 --- Makefile.in.orig	Sun Apr  9 15:17:58 2000
-+++ Makefile.in	Sun Sep 24 15:01:31 2000
-@@ -261,43 +264,43 @@
++++ Makefile.in	Wed Jan 10 00:20:32 2001
+@@ -35,7 +35,8 @@
+ 		Sources/Lua:\
+ 		Sources/Lua/tolua:\
+ 		Sources/MPEG:\
+-		Sources/GUI
++		Sources/GUI:\
++		Sources/Util
+ 
+ OBJF_GENERIC =	Libs/Intermediate/cliprect.o \
+ 		Libs/Intermediate/res_surface_generic.o \
+@@ -131,7 +132,8 @@
+ 		Libs/Intermediate/appconf.o \
+ 		Libs/Intermediate/thread_pthread.o \
+ 		Libs/Intermediate/mutex_pthread.o \
+-		Libs/Intermediate/network_delivery_socket.o
++		Libs/Intermediate/network_delivery_socket.o \
++		Libs/Intermediate/fcvt.o
+ 
+ OBJF_NETWORK_UNIX =	Libs/Intermediate/network_delivery_unix.o \
+ 	 	Libs/Intermediate/network_delivery_pipe.o \
+@@ -261,43 +263,43 @@
  	@install -d $(BIN_PREFIX)
  	@install -d $(LIB_PREFIX)
  	@for i in `find Sources/API/* -type d | grep -v CVS | sed "s/Sources\/API\///;"`; do install -d $(INC_PREFIX)/ClanLib/$$i; done
@@ -52,7 +72,7 @@
  		ln -s -f libclanPNG.so.$(D_VERSION_MINOR) $(LIB_PREFIX)/libclanPNG.so.$(D_VERSION_MAJOR); \
  		ln -s -f libclanPNG.so.$(D_VERSION_MAJOR) $(LIB_PREFIX)/libclanPNG.so; \
  	fi
-@@ -306,10 +309,10 @@
+@@ -306,10 +308,10 @@
  		install -d $(TARGET_PREFIX); \
  		all_targets_var="$(ALL_TARGETS)"; \
  		for curtarget in $$all_targets_var; do \