Fixes for building pd on OpenBSD

[Dario Niedermann <dnied%tiscali.it@localhost>]

[ CC'ing Pure Data developer Miller Puckette <msp%ucsd.edu@localhost> ]


Package "audio/pd" will not build on OpenBSD as it is. In order to build
it, I had to make changes to source files, as outlined in the attached
patches.

This with pkgsrc-2013Q1 (featuring pd version 0.43-0) and OpenBSD
5.3/i386. Provisions are made for OpenBSD/amd64, but I could not test
those.

Also, the CFLAGS environment variable needs to be set to:

        '-DAPI_DEFAULT=API_OSS -DAPI_DEFSTRING=\"OSS\"'



=====BEGIN PATCHES=====

======================================== patch-extra_pd~_pd~.c-2
$NetBSD$

Adds variable definitions for OpenBSD

--- extra/pd~/pd~.c.pkgsrc      Thu May 23 17:20:22 2013
+++ extra/pd~/pd~.c     Thu May 23 17:21:48 2013
@@ -66,6 +66,15 @@
     pd_tilde_dllextent2[] = ".pd_netbsd";
 #endif
 #endif
+#if defined(__OpenBSD__)
+#ifdef __x86_64__
+static char pd_tilde_dllextent[] = ".b_ia64",
+    pd_tilde_dllextent2[] = ".pd_openbsd";
+#else
+static char pd_tilde_dllextent[] = ".b_i386",
+    pd_tilde_dllextent2[] = ".pd_openbsd";
+#endif
+#endif
 #if defined(__sun)
 #ifdef __x86_64__
 static char pd_tilde_dllextent[] = ".s_ia64",
======================================== patch-src_d__array.c-2
$NetBSD$

OpenBSD too defines BYTE_ORDER in <sys/endian.h>

--- src/d_array.c.pkgsrc        Thu May 23 15:08:33 2013
+++ src/d_array.c       Thu May 23 15:09:25 2013
@@ -498,7 +498,7 @@
 /* this is all copied from d_osc.c... what include file could this go in? */
 #define UNITBIT32 1572864.  /* 3*2^19; bit 32 has place value 1 */
 
-#ifdef IRIX
+#if defined(IRIX) || defined(__OpenBSD__)
 #include <sys/endian.h>
 #endif
 
======================================== patch-src_d__osc.c-2
$NetBSD$

OpenBSD too defines BYTE_ORDER in <sys/endian.h>

--- src/d_osc.c.pkgsrc  Thu May 23 14:53:36 2013
+++ src/d_osc.c Thu May 23 14:57:23 2013
@@ -11,7 +11,7 @@
 #define UNITBIT32 1572864.  /* 3*2^19; bit 32 has place value 1 */
 
 
-#ifdef IRIX
+#if defined(IRIX) || defined(__OpenBSD__)
 #include <sys/endian.h>
 #endif
 
======================================== patch-src_s__audio__oss.c-2
$NetBSD$

Include correct "soundcard.h" for OpenBSD

--- src/s_audio_oss.c.pkgsrc    Thu May 23 16:28:41 2013
+++ src/s_audio_oss.c   Thu May 23 16:30:24 2013
@@ -7,6 +7,8 @@
 
 #if defined(__FreeBSD_kernel__) || defined(__NetBSD__) || defined(__sun)
 # include <sys/soundcard.h>
+#elif defined(__OpenBSD__)
+# include <soundcard.h>
 #else
 # include <linux/soundcard.h>
 #endif
======================================== patch-src_s__file.c-2
$NetBSD$

Compile the following funcs for OpenBSD too

--- src/s_file.c.pkgsrc Thu May 23 16:52:48 2013
+++ src/s_file.c        Thu May 23 16:53:54 2013
@@ -36,7 +36,7 @@
 t_symbol *sys_flags = &s_;
 void sys_doflags( void);
 
-#if defined(__linux__) || defined(__CYGWIN__) || defined(__FreeBSD_kernel__) 
|| defined(__GNU__) || defined(ANDROID) || defined(__NetBSD__) || defined(__sun)
+#if defined(__linux__) || defined(__CYGWIN__) || defined(__FreeBSD_kernel__) 
|| defined(__GNU__) || defined(ANDROID) || defined(__NetBSD__) || 
defined(__OpenBSD__) || defined(__sun)
 
 static char *sys_prefbuf;
 static int sys_prefbufsize;
======================================== patch-src_s__loader.c-2
$NetBSD$

Define extensions for OpenBSD.

--- src/s_loader.c.pkgsrc       Thu May 23 13:31:50 2013
+++ src/s_loader.c      Thu May 23 13:38:22 2013
@@ -44,6 +44,12 @@
 # else
 static char sys_dllextent[] = ".n_i386", sys_dllextent2[] = ".pd_netbsd";
 # endif
+#elif defined(__OpenBSD__)
+# ifdef __x86_64__
+static char sys_dllextent[] = ".b_ia64", sys_dllextent2[] = ".pd_openbsd";
+# else
+static char sys_dllextent[] = ".b_i386", sys_dllextent2[] = ".pd_openbsd";
+# endif
 #elif defined(__sun)
 # ifdef __x86_64__
 static char sys_dllextent[] = ".s_ia64", sys_dllextent2[] = ".pd_sunos";
======================================== patch-src_x__misc.c-2
$NetBSD$

Define CLOCKHZ for OpenBSD too

--- src/x_misc.c.pkgsrc Thu May 23 16:10:14 2013
+++ src/x_misc.c        Thu May 23 16:11:12 2013
@@ -20,7 +20,7 @@
 #include <unistd.h>
 #endif /* _WIN32 */
 
-#if defined (__APPLE__) || defined (__FreeBSD__) || defined(__NetBSD__) || 
defined(__sun)
+#if defined (__APPLE__) || defined (__FreeBSD__) || defined(__NetBSD__) || 
defined(__OpenBSD__) || defined(__sun)
 #define CLOCKHZ CLK_TCK
 #endif
 #if defined (__linux__) || defined (__CYGWIN__) || defined (ANDROID)
=====END PATCHES=====