OS/MODEL detection again...

posix.mak

@@ -1,39 +1,52 @@
-DMD ?= dmd
-CC ?= gcc
+DMD = ../dmd/src/dmd
+CC = gcc
 INSTALL_DIR = ../install
 
-WITH_DOC ?= no
-DOC ?= ../dlang.org/web
+WITH_DOC = no
+DOC = ../dlang.org/web
 
-OS:=
-uname_S:=$(shell uname -s)
-ifeq (Darwin,$(uname_S))
-	OS:=osx
-endif
-ifeq (Linux,$(uname_S))
-	OS:=linux
-endif
-ifeq (FreeBSD,$(uname_S))
-	OS:=freebsd
-endif
-ifeq (OpenBSD,$(uname_S))
-	OS:=openbsd
-endif
-ifeq (Solaris,$(uname_S))
-	OS:=solaris
-endif
-ifeq (SunOS,$(uname_S))
-	OS:=solaris
-endif
 ifeq (,$(OS))
-	$(error Unrecognized or unsupported OS for uname: $(uname_S))
+    uname_S:=$(shell uname -s)
+    ifeq (Darwin,$(uname_S))
+      OS:=osx
+    endif
+    ifeq (Linux,$(uname_S))
+        OS=linux
+    endif
+    ifeq (FreeBSD,$(uname_S))
+        OS=freebsd
+    endif
+    ifeq (OpenBSD,$(uname_S))
+        OS=openbsd
+    endif
+    ifeq (Solaris,$(uname_S))
+        OS=solaris
+    endif
+    ifeq (SunOS,$(uname_S))
+        OS=solaris
+    endif
+    ifeq (,$(OS))
+        $(error Unrecognized or unsupported OS for uname: $(uname_S))
+    endif
 endif
 
-MODEL:=default
-ifneq (default,$(MODEL))
-	MODEL_FLAG:=-m$(MODEL)
+ifeq (,$(MODEL))
+    uname_M:=$(shell uname -m)
+    ifeq (x86_64,$(uname_M))
+        MODEL=64
+    else
+        ifeq (i686,$(uname_M))
+            MODEL=32
+        else
+            $(error Cannot figure 32/64 model from uname -m: $(uname_M))
+        endif
+    endif
 endif
 
+MODEL_FLAG=-m$(MODEL)
+
+WITH_DOC = no
+DOC = ../dlang.org/web
 ROOT_OF_THEM_ALL = generated
 ROOT = $(ROOT_OF_THEM_ALL)/$(OS)/$(MODEL)