$OpenBSD: patch-corba_make_common_shared_Platform_gmk,v 1.4 2009/06/10 19:01:09 kurt Exp $
--- corba/make/common/shared/Platform.gmk.orig	Thu May 14 03:25:58 2009
+++ corba/make/common/shared/Platform.gmk	Wed Jun  3 16:07:27 2009
@@ -262,6 +262,89 @@ ifeq ($(SYSTEM_UNAME), Linux)
   MB_OF_MEMORY := $(shell free -m | fgrep Mem: | sed -e 's@\ \ *@ @g' | cut -d' ' -f2)
 endif
 
+ifeq ($(SYSTEM_UNAME), FreeBSD)
+  PLATFORM = bsd
+  OS_NAME = freebsd
+  OS_VENDOR = FreeBSD
+ REQUIRED_OS_VERSION = 6.0
+endif
+
+ifeq ($(SYSTEM_UNAME), Darwin)
+  PLATFORM = bsd
+  OS_NAME = darwin
+  OS_VENDOR = Apple
+ REQUIRED_OS_VERSION = 8.0
+endif
+
+ifeq ($(SYSTEM_UNAME), NetBSD)
+  PLATFORM = bsd
+  OS_NAME = netbsd
+  OS_VENDOR = NetBSD
+  REQUIRED_OS_VERSION = 3.0
+endif
+
+ifeq ($(SYSTEM_UNAME), OpenBSD)
+  PLATFORM = bsd
+  OS_NAME = openbsd
+  OS_VENDOR = OpenBSD
+  REQUIRED_OS_VERSION = 4.2
+endif
+
+# Platform settings specific to BSD
+ifeq ($(PLATFORM), bsd)
+  OS_VERSION := $(shell uname -r)
+  # Arch and OS name/version
+  mach := $(shell uname -m)
+  archExpr = case "$(mach)" in \
+                i[3-9]86) \
+                    echo i586 \
+                    ;; \
+                *) \
+                    echo $(mach) \
+                    ;; \
+      esac
+  ARCH        := $(shell $(archExpr) )
+  ARCH_FAMILY := $(ARCH)
+
+  # Darwin builds may be 32-bit or 64-bit data model.
+  ifeq ($(SYSTEM_UNAME), Darwin)
+    ifeq ($(ARCH), i586)
+      ifeq ($(ARCH_DATA_MODEL), 64)
+        ARCH=amd64
+      endif
+    endif
+  endif
+
+  # i586 and sparc are 32 bit, amd64 and sparc64 are 64
+  ifneq (,$(findstring $(ARCH), i586 sparc))
+    ARCH_DATA_MODEL=32
+  else
+    ARCH_DATA_MODEL=64
+  endif
+
+  # Need to maintain the jre/lib/i386 location for 32-bit Intel
+  ifeq ($(ARCH), i586)
+    LIBARCH = i386
+  else
+    LIBARCH = $(ARCH)
+  endif
+
+  # Value of Java os.arch property
+  ARCHPROP  = $(LIBARCH)
+
+  # Suffix for file bundles used in previous release
+  BUNDLE_FILE_SUFFIX=.tar.gz
+  # Minimum disk space needed as determined by running 'du -sk' on 
+  #    a fully built workspace.
+  REQUIRED_FREE_SPACE=1500000
+  # How much RAM does this machine have:
+  ifeq ($(OS_VENDOR), OpenBSD)
+    MB_OF_MEMORY=$(shell sysctl -n hw.physmem | awk '{print int($$NF / 1048576); }' )
+  else
+    MB_OF_MEMORY=$(shell (sysctl -n hw.physmem64 2> /dev/null || sysctl -n hw.physmem) | awk '{print int($$NF / 1048576); }' )
+  endif
+endif
+
 # Windows with and without CYGWIN will be slightly different
 ifeq ($(SYSTEM_UNAME), Windows_NT)
   PLATFORM = windows
@@ -373,7 +456,14 @@ endif
 #    build machines and adjustments will be made to prevent excessing
 #    system swapping during the build.
 #    If we don't know, assume 512. Subtract 128 from MB for VM MAX.
-#    Don't set VM max over 1024-128=896.
+#    Don't set VM max over 1024-128=896, except on OpenBSD where
+#    736 is the max.
+ifeq ($(OS_VENDOR), OpenBSD)
+  ABS_MAX_MEMORY := "736"
+else
+  ABS_MAX_MEMORY := "896"
+endif
+
 ifneq ($(MB_OF_MEMORY),)
   LOW_MEMORY_MACHINE := $(shell \
     if [ $(MB_OF_MEMORY) -le 512 ] ; then \
@@ -385,7 +475,7 @@ ifneq ($(MB_OF_MEMORY),)
     if [ $(MB_OF_MEMORY) -le 1024 ] ; then \
       expr $(MB_OF_MEMORY) '-' 128 ; \
     else \
-      echo "896"; \
+      echo $(ABS_MAX_MEMORY); \
     fi)
   MIN_VM_MEMORY := $(shell \
     if [ $(MAX_VM_MEMORY) -le 128 ] ; then \
