Patch that allows for building OpenBIOS on Mac OS X!

[Programmingkid]

This patch allows users to build OpenBIOS on Mac OS X! The user just needs to install the elf cross compiler before applying this patch.

signed-off-by: John Arbuckle

Index: config/scripts/switch-arch
===================================================================
--- config/scripts/switch-arch	(revision 1117)
+++ config/scripts/switch-arch	(working copy)
@@ -89,16 +89,27 @@

archname()
 {
-    HOSTARCH=`uname -m | sed -e s/i.86/x86/ -e s/i86pc/x86/ \
-	-e s/sun4u/sparc64/ -e s/sparc$/sparc32/ \
-	-e s/arm.*/arm/ -e s/sa110/arm/ -e s/x86_64/amd64/ \
-	-e "s/Power Macintosh/ppc/"`
+ 	OS_NAME=`uname`
+	if test "$OS_NAME" = "Darwin"; then     # Can't depend on uname -m on Mac OS X
+		IS_64BIT=`sysctl hw.cpu64bit_capable`
+		if test "$IS_64BIT" = "hw.cpu64bit_capable: 1"; then
+			HOSTARCH="amd64"
+		else
+			HOSTARCH="x86"
+		fi
+	else
+		 HOSTARCH=`uname -m | sed -e s/i.86/x86/ -e s/i86pc/x86/ \
+		-e s/sun4u/sparc64/ -e s/sparc$/sparc32/ \
+		-e s/arm.*/arm/ -e s/sa110/arm/ -e s/x86_64/amd64/ \
+		-e "s/Power Macintosh/ppc/"`
+	fi   
 }

select_prefix()
 {
-    for TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}-linux- ${1}-elf- ${1}-eabi-
+    for TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}-linux- ${1}-elf- ${1}-eabi- ppc-elf-
     do
+        echo "Trying ${TARGET}gcc"
         if type ${TARGET}gcc > /dev/null 2>&1
         then
             return

[Segher Boessenkool]

> archname()
>  {
> HOSTARCH=`uname -m | sed -e s/i.86/x86/ -e s/i86pc/x86/ \
> -e s/sun4u/sparc64/ -e s/sparc$/sparc32/ \
> -e s/arm.*/arm/ -e s/sa110/arm/ -e s/x86_64/amd64/ \
> -e "s/Power Macintosh/ppc/"`
> OS_NAME=`uname`
> if test "$OS_NAME" = "Darwin"; then     # Can't depend on uname -
>
> m on Mac OS X
> IS_64BIT=`sysctl hw.cpu64bit_capable`
> if test "$IS_64BIT" = "hw.cpu64bit_capable: 1"; then
> 	HOSTARCH="amd64"
> else
> 	HOSTARCH="x86"
> fi
> else
>  HOSTARCH=`uname -m | sed -e s/i.86/x86/ -e s/i86pc/x86/ \
> -e s/sun4u/sparc64/ -e s/sparc$/sparc32/ \
> -e s/arm.*/arm/ -e s/sa110/arm/ -e s/x86_64/amd64/ \
> -e "s/Power Macintosh/ppc/"`
> fi
>
> }

This is wrong.  "uname" does not tell you the machine architecture;
"uname -m" does, at least on my PowerPC Macs.  Also:

$ sysctl hw.cpu64bit_capable
second level name cpu64bit_capable in hw.cpu64bit_capable is invalid
> select_prefix()
>  {
> for TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}-
>
> linux- ${1}-elf- ${1}-eabi-
> for TARGET in ${1}-unknown-linux-gnu- ${1}-linux-gnu- ${1}-
>
> linux- ${1}-elf- ${1}-eabi- ppc-elf-

This is also wrong.  ppc-elf is neither a canonical nor a common prefix.
Whoever built your toolchain was hellbent on making life difficult for
the users of said toolchain.
>  do
>    echo "Trying ${TARGET}gcc"

Not everyone wants to see your debug output, did you forget to remove  
it?

Segher