More tweaks on Linux and Solaris.

bin/9c

@@ -5,7 +5,6 @@ usegcc()
 	cc=gcc
 	cflags=" \
 		-O2 \
-		-I$PLAN9/include \
 		-c \
 		-ggdb \
 		-Wall \
@@ -29,4 +28,4 @@ case "$tag" in
 	exit 1
 esac
 
-exec $cc $cflags "$@"
+exec $cc -I$PLAN9/include $cflags "$@"

bin/9l

@@ -7,7 +7,7 @@ case "$tag" in
 *BSD*)		ld=gcc ;;
 *Linux*)	ld=gcc ;;
 *Darwin*)	ld=gcc ;;
-*SunOS*)	ld=${CC9:-cc}
+*SunOS*)	ld="${CC9:-cc} -g"
 		extralibs="$extralibs -lrt -lpthread -lsocket -lnsl"
 		;;
 *)