--- allegro-4.2.0/tools/grabber.c.mprotect 2005-09-04 18:00:18.000000000 +0200
+++ allegro-4.2.0/tools/grabber.c 2006-03-11 23:27:31.000000000 +0100
@@ -3121,6 +3121,7 @@
case OSTYPE_SUNOS: s = "SunOS/Solaris"; break;
case OSTYPE_FREEBSD: s = "FreeBSD"; break;
case OSTYPE_NETBSD: s = "NetBSD"; break;
+ case OSTYPE_OPENBSD: s = "OpenBSD"; break;
case OSTYPE_IRIX: s = "IRIX"; break;
case OSTYPE_DARWIN: s = "Darwin"; break;
case OSTYPE_QNX: s = "QNX"; break;
--- allegro-4.2.0/include/allegro/platform/alunixac.hin.mprotect 2005-10-30 21:23:33.000000000 +0100
+++ allegro-4.2.0/include/allegro/platform/alunixac.hin 2006-03-11 23:27:31.000000000 +0100
@@ -169,6 +169,9 @@
/* Define to 1 if you have the `mmap' function. */
#undef HAVE_MMAP
+/* Define to 1 if you have the `mprotect' function. */
+#undef HAVE_MPROTECT
+
/* Define to 1 if you have the <ndir.h> header file, and it defines `DIR'. */
#undef HAVE_NDIR_H
--- allegro-4.2.0/include/allegro/system.h.mprotect 2005-03-15 21:32:43.000000000 +0100
+++ allegro-4.2.0/include/allegro/system.h 2006-03-11 23:27:31.000000000 +0100
@@ -53,6 +53,7 @@
#define OSTYPE_SUNOS AL_ID('S','U','N',' ')
#define OSTYPE_FREEBSD AL_ID('F','B','S','D')
#define OSTYPE_NETBSD AL_ID('N','B','S','D')
+#define OSTYPE_OPENBSD AL_ID('O','B','S','D')
#define OSTYPE_IRIX AL_ID('I','R','I','X')
#define OSTYPE_DARWIN AL_ID('D','A','R','W')
#define OSTYPE_QNX AL_ID('Q','N','X',' ')
--- allegro-4.2.0/configure.mprotect 2005-11-06 10:54:00.000000000 +0100
+++ allegro-4.2.0/configure 2006-03-11 23:27:31.000000000 +0100
@@ -11225,7 +11225,7 @@
-for ac_func in mmap memcmp mkstemp stricmp strlwr strupr vprintf
+for ac_func in mmap mprotect memcmp mkstemp stricmp strlwr strupr vprintf
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
--- allegro-4.2.0/configure.in.mprotect 2005-08-07 23:50:49.000000000 +0200
+++ allegro-4.2.0/configure.in 2006-03-11 23:27:31.000000000 +0100
@@ -713,7 +713,7 @@
AC_STRUCT_TM
AC_TYPE_SIGNAL
-AC_CHECK_FUNCS(mmap memcmp mkstemp stricmp strlwr strupr vprintf)
+AC_CHECK_FUNCS(mmap mprotect memcmp mkstemp stricmp strlwr strupr vprintf)
dnl Tweak header files for library build
CFLAGS="$CFLAGS -DALLEGRO_LIB_BUILD"
--- allegro-4.2.0/src/unix/usystem.c.mprotect 2005-09-04 18:00:17.000000000 +0200
+++ allegro-4.2.0/src/unix/usystem.c 2006-03-11 23:27:31.000000000 +0100
@@ -196,6 +196,9 @@
else if (!strcmp(utsn.sysname, "NetBSD")) {
os_type = OSTYPE_NETBSD;
}
+ else if (!strcmp(utsn.sysname, "OpenBSD")) {
+ os_type = OSTYPE_OPENBSD;
+ }
else if ((!strcmp(utsn.sysname, "IRIX"))
|| (!strcmp(utsn.sysname, "IRIX64"))) {
os_type = OSTYPE_IRIX;
--- allegro-4.2.0/src/unix/uesd.c.mprotect 2005-03-12 08:54:27.000000000 +0100
+++ allegro-4.2.0/src/unix/uesd.c 2006-03-11 23:27:31.000000000 +0100
@@ -27,6 +27,7 @@
#include <sys/time.h>
#include <sys/types.h>
+#include <string.h> /* FD_ZERO() needs this */
#include <unistd.h>
#include <esd.h>
--- allegro-4.2.0/src/i386/istretch.c.mprotect 2005-03-15 19:02:22.000000000 +0100
+++ allegro-4.2.0/src/i386/istretch.c 2006-03-11 23:31:44.000000000 +0100
@@ -30,6 +30,11 @@
#include "winalleg.h" /* For VirtualProtect */
#endif /* ifdef ALLEGRO_WINDOWS */
+#ifdef HAVE_MPROTECT
+ #include <sys/types.h>
+ #include <sys/mman.h>
+ #include <sys/user.h>
+#endif
/* helper macro for generating stretchers in each color depth */
@@ -435,7 +440,14 @@
#ifdef ALLEGRO_WINDOWS
/* Play nice with Windows executable memory protection */
VirtualProtect(_scratch_mem, _scratch_mem_size, PAGE_EXECUTE_READWRITE, &old_protect);
- #endif /* ifdef ALLEGRO_WINDOWS */
+ #elif defined(HAVE_MPROTECT)
+ {
+ char *p = (char *)((unsigned long)_scratch_mem & ~(PAGE_SIZE-1ul));
+ if (mprotect(p, _scratch_mem_size + ((char *)_scratch_mem - p),
+ PROT_EXEC|PROT_READ|PROT_WRITE))
+ perror("allegro-error: mprotect failed during stretched blit!");
+ }
+ #endif
/* call the stretcher */
_do_stretch(source, dest, _scratch_mem, sx>>16, sy, syd,