crosstool-0.28-rc16: compiling linux-2.6.6 on Mac OS X

[Martin Schaffner <schaffner at gmx dot li>]

Today I sucessfully tested crosstool-0.28-rc16 with the following 
command:

export TARBALLS_DIR=/Volumes/ext/src/ RESULT_TOP=/opt/crosstool 
GCC_LANGUAGES="c,c++"; eval `cat powerpc-750.dat 
gcc-3.4.0-glibc-2.3.2.dat` LINUX_DIR=linux-2.6.6 
BINUTILS_DIR=binutils-2.14.90.0.5  sh all.sh --notest

I set BINUTILS_DIR to an old version because of the following issue 
when compiling linux:

  http://mail.gnu.org/archive/html/bug-binutils/2004-05/msg00064.html

Maybe crosstool should contain a patch against this problem?




I had to apply the following patch to linux-2.6.6 for it to compile on 
Mac OS X.
Unfortunately, it is quite OS X-specific, so I won't even try to get it
included into the official tree...

diff -ur linux-2.6.6/Makefile l266mod/Makefile
--- linux-2.6.6/Makefile	Mon May 10 03:32:53 2004
+++ l266mod/Makefile	Fri May 21 17:07:37 2004
@@ -195,7 +195,7 @@

 HOSTCC  	= gcc
 HOSTCXX  	= g++
-HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
+HOSTCFLAGS	= -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 
-idirafter `$(CC) 
-print-file-name=include`/../../../../../?????*/include/ # for elf.h
 HOSTCXXFLAGS	= -O2

 # 	Decide whether to build built-in, modular, or both.
diff -ur linux-2.6.6/scripts/Makefile.build 
l266mod/scripts/Makefile.build
--- linux-2.6.6/scripts/Makefile.build	Mon May 10 03:33:13 2004
+++ l266mod/scripts/Makefile.build	Fri May 21 16:48:09 2004
@@ -343,15 +343,17 @@

 # Compile .c file, create position independent .o file
 # host-cshobjs -> .o
-quiet_cmd_host-cshobjs	= HOSTCC  -fPIC $@
-      cmd_host-cshobjs	= $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $<
+quiet_cmd_host-cshobjs	= HOSTCC -fPIC -fno-common $@
+      cmd_host-cshobjs	= $(HOSTCC) $(hostc_flags) -fPIC -fno-common -c 
-o $@ $<
 $(host-cshobjs): %.o: %.c FORCE
 	$(call if_changed_dep,host-cshobjs)

 # Link a shared library, based on position independent .o files
 # *.o -> .so shared library (host-cshlib)
+SHARED_SWITCH = `if $(HOSTCC) -dM -E - < /dev/null | grep -q APPLE; \
+		then echo "-dynamiclib"; else echo "-shared"; fi`
 quiet_cmd_host-cshlib	= HOSTLLD -shared $@
-      cmd_host-cshlib	= $(HOSTCC) $(HOSTLDFLAGS) -shared -o $@ \
+      cmd_host-cshlib	= $(HOSTCC) $(HOSTLDFLAGS) $(SHARED_SWITCH) -o 
$@ \
 			  $(addprefix $(obj)/,$($(@F:.so=-objs))) \
 			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
 $(host-cshlib): %: $(host-cshobjs) FORCE
diff -ur linux-2.6.6/scripts/sumversion.c l266mod/scripts/sumversion.c
--- linux-2.6.6/scripts/sumversion.c	Mon May 10 03:32:54 2004
+++ l266mod/scripts/sumversion.c	Fri May 21 16:11:28 2004
@@ -1,4 +1,6 @@
+#ifndef __APPLE__
 #include <netinet/in.h>
+#endif
 #include <stdint.h>
 #include <ctype.h>
 #include <errno.h>
@@ -374,7 +376,7 @@
 			break;
 		/* Terminate line at first space, to get rid of final ' \' */
 		while (*p) {
-			if isspace(*p) {
+			if (isspace(*p)) {
 				*p = '\0';
 				break;
 			}



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