Building inferno on OSX

inferno-osx.txt

[~/src/inferno/vitanuova/inferno]$ hg diff mkfiles/mkfile-MacOSX-386 
diff -r 7ab390b860ca mkfiles/mkfile-MacOSX-386
--- a/mkfiles/mkfile-MacOSX-386	Mon Jun 30 14:13:22 2014 +0100
+++ b/mkfiles/mkfile-MacOSX-386	Thu Feb 26 11:19:09 2015 +0530
@@ -9,12 +9,12 @@
 ARFLAGS=	ruvs
 A=		a
 
-AS=		gcc -c -arch i386 -m32
+AS=		llvm-gcc -c -arch i386 -m32
 ASFLAGS=
 
 ISYSROOT=	-isysroot /Developer/SDKs/MacOSX10.6.sdk
 
-CC=		gcc -c -m32
+CC=		llvm-gcc -c -m32
 COPTFLAGS=	-Os
 CDEBUGFLAGS=
 CTHREADFLAGS=
@@ -23,13 +23,11 @@
 		-Wno-deprecated-declarations -Wuninitialized -Wunused -Wreturn-type -Wimplicit -Wno-four-char-constants -Wno-unknown-pragmas\
 		-pipe\
 		-fno-strict-aliasing\
-		-no-cpp-precomp\
-		-mno-fused-madd\
 		-I$ROOT/MacOSX/386/include\
 		-I$ROOT/include\
 		$COPTFLAGS $CDEBUGFLAGS\
 
-LD=		gcc -arch i386 -m32
+LD=		llvm-gcc -arch i386 -m32
 LDFLAGS=\
 		-mmacosx-version-min=10.4\
 		-multiply_defined suppress
[~/src/inferno/vitanuova/inferno]$ hg diff mkconfig 
diff -r 7ab390b860ca mkconfig
--- a/mkconfig	Mon Jun 30 14:13:22 2014 +0100
+++ b/mkconfig	Thu Feb 26 11:19:48 2015 +0530
@@ -4,7 +4,7 @@
 #	They are almost always the same.
 
 #	On Nt systems, the ROOT path MUST be of the form `drive:/path'
-ROOT=/usr/inferno
+ROOT=/Users/ramakrishnanm/src/inferno/vitanuova/inferno
 
 #
 #	Specify the flavour of Tk (std for standard builds)
@@ -14,14 +14,14 @@
 #
 #	Except for building kernels, SYSTARG must always be the same as SYSHOST
 #
-SYSHOST=Plan9		# build system OS type (Hp, Inferno, Irix, Linux, MacOSX, Nt, Plan9, Solaris)
+SYSHOST=MacOSX		# build system OS type (Hp, Inferno, Irix, Linux, MacOSX, Nt, Plan9, Solaris)
 SYSTARG=$SYSHOST		# target system OS type (Hp, Inferno, Irix, Linux, Nt, Plan9, Solaris)
 
 #
 #	specify the architecture of the target system - Plan 9 imports it from the
 #	environment; for other systems it is usually just hard-coded
 #
-#OBJTYPE=386			# target system object type (eg, 386, arm, mips, power, s800, sparc)
+objtype=386			# target system object type (eg, 386, arm, mips, power, s800, sparc)
 OBJTYPE=$objtype
 
 #
[~/src/inferno/vitanuova/inferno]$ hg diff MacOSX/386/include/fpuctl.h 
diff -r 7ab390b860ca MacOSX/386/include/fpuctl.h
--- a/MacOSX/386/include/fpuctl.h	Mon Jun 30 14:13:22 2014 +0100
+++ b/MacOSX/386/include/fpuctl.h	Thu Feb 26 11:19:51 2015 +0530
@@ -11,7 +11,7 @@
 			"fwait\n\t"
 			"fldcw	(%%esp)\n\t"
 			"popw	%%ax\n\t"
-			: /* no output */
+			: "=a" (fcr)
 			: "al" (fcr)
 	);
 }