INSTALL: fix build on Snow Leopard

http://codereview.appspot.com/116073

bin/9a

@@ -5,5 +5,11 @@ if [ $# != 1 ]; then
 	exit 1
 fi
 
+aflags=""
+case "`uname`" in
+Darwin)
+	aflags="-arch i386"
+esac
+
 out=`echo $1 | sed 's/\.s$//;s/$/.o/'`
-exec as -o $out $1
+exec as $aflags -o $out $1

bin/9c

@@ -25,7 +25,7 @@ tag="${SYSNAME:-`uname`}-${OBJTYPE:-`uname -m`}-${CC9:-cc}"
 case "$tag" in
 *BSD*)	usegcc ;;
 *Darwin*)	usegcc 
-		cflags="$ngflags -g3 -no-cpp-precomp" ;;
+		cflags="$ngflags -g3 -no-cpp-precomp -m32" ;;
 *HP-UX*)	cc=cc; cflags="-g -O -c -Ae" ;;
 *Linux*)	usegcc 
 		case "${CC9:-gcc}" in
@@ -76,7 +76,7 @@ xtmp=/tmp/9c.$$.$USER.out
 $cc -DPLAN9PORT -I$PLAN9/include $cflags "$@" 2>$xtmp
 status=$?
 grep -v '__p9l_autolib_' $xtmp |
-egrep -v ': error: .Each undeclared identifier|: error: for each function it appears|is dangerous, better use|is almost always misused|: In function |: At top level:|support .long long.|In file included from|        from|use of C99 long long|ISO C forbids conversion|Cursor. is deprecated|warn_unused_result' |
+egrep -v ': error: .Each undeclared identifier|: error: for each function it appears|is dangerous, better use|is almost always misused|: In function |: At top level:|support .long long.|In file included from|        from|use of C99 long long|ISO C forbids conversion|is deprecated|warn_unused_result' |
 sed 's/ .first use in this function.$//; s/\"\([^\"][^\"]*\)\", line \([0-9][0-9]*\)/\1:\2/g' |
 uniq 1>&2
 rm -f $xtmp $xtmp.status

bin/9l

@@ -46,7 +46,7 @@ case "$tag" in
 	esac
 	;;
 *Darwin*)
-	ld=gcc
+	ld="gcc -m32"
 	;;
 *SunOS*)
 	ld="${CC9:-cc} -g"

src/cmd/eqn/e.h

@@ -18,6 +18,8 @@ extern int class[LAST][LAST];
 #define	max(x,y)	(((x) >= (y)) ? (x) : (y))	/* beware of side effects */
 #define	min(x,y)	(((x) <= (y)) ? (x) : (y))
 
+#undef	sprintf	/* Snow Leopard */
+
 extern	char	errbuf[200];
 extern	char	*cmdname;
 #define	ERROR	sprintf(errbuf,

src/cmd/grap/grap.h

@@ -1,4 +1,7 @@
 extern	char	errbuf[200];
+
+#undef	sprintf	/* Snow Leopard */
+
 #define	ERROR	sprintf(errbuf,
 #define	FATAL	), yyerror(errbuf), exit(1)
 #define	WARNING	), yyerror(errbuf)

src/cmd/pic/pic.h

@@ -10,6 +10,9 @@
 extern	void	yyerror(char *);
 
 extern	char	errbuf[200];
+
+#undef	sprintf	/* Snow Leopard */
+
 #define	ERROR	sprintf(errbuf,
 #define	FATAL	), yyerror(errbuf), exit(1)
 #define	WARNING	), yyerror(errbuf)

src/cmd/tpic/pic.h

@@ -12,6 +12,9 @@
 #define	dprintf	if(dbg)printf
 
 extern	char	errbuf[200];
+
+#undef	sprintf	/* Snow Leopard */
+
 #define	ERROR	sprintf(errbuf,
 #define	FATAL	), yyerror(errbuf), exit(1)
 #define	WARNING	), yyerror(errbuf)

src/cmd/troff/tdef.h

@@ -68,6 +68,8 @@ typedef	struct	Tbuf	Tbuf;
 #define	oputs(a)	OUT "%s", a PUT
 #define	oput(c)		( *obufp++ = (c), obufp > obuf+BUFSIZ ? flusho() : 1 )
 
+#undef	sprintf	/* Snow Leopard */
+
 extern	char	errbuf[];
 #define	ERROR	sprintf(errbuf,
 #define	WARN	), errprint()

src/lib9/dirread.c

@@ -1,3 +1,7 @@
+#if defined(__APPLE__)
+#define _DARWIN_NO_64_BIT_INODE	/* Snow Leopard */
+#endif
+
 #include <u.h>
 #define NOPLAN9DEFINES
 #include <libc.h>

src/libthread/threadimpl.h

@@ -6,6 +6,9 @@
 #include <sched.h>
 #include <signal.h>
 #if !defined(__OpenBSD__)
+#	if defined(__APPLE__)
+#		define _XOPEN_SOURCE 	/* for Snow Leopard */
+#	endif
 #	include <ucontext.h>
 #endif
 #include <sys/utsname.h>