added patch for grep-2.7 to build on gcc2

sys-apps/grep/grep-2.7.bep

@@ -3,11 +3,13 @@ HOMEPAGE="http://www.gnu.org/software/grep/"
 SRC_URI="ftp://mirrors.kernel.org/gnu/grep/grep-2.7.tar.gz"
 CHECKSUM_MD5="e848f07e3e79aa7899345d17c7e4115e"
 REVISION="1"
-STATUS_HAIKU="broken"
+STATUS_HAIKU="stable"
 DEPEND=""
 BUILD {
 	cd grep-2.7
 	libtoolize --force --copy --install
+	aclocal -I m4
+	autoconf
 	./configure --prefix=/boot/common
 	make
 }

sys-apps/grep/patches/grep-2.7.patch

@@ -0,0 +1,14 @@
+diff -urN grep-2.7/src/kwsearch.c grep-2.7-haiku/src/kwsearch.c
+--- grep-2.7/src/kwsearch.c	2010-08-13 23:36:17.039059456 +0000
++++ grep-2.7-haiku/src/kwsearch.c	2010-09-22 12:39:11.677642240 +0000
+@@ -111,8 +111,9 @@
+           /* The match was a part of multibyte character, advance at least
+              one byte to ensure no infinite loop happens.  */
+           mbstate_t s;
++          size_t mb_len;
+           memset (&s, 0, sizeof s);
+-          size_t mb_len = mbrlen (mb_start, (buf + size) - (beg + offset), &s);
++          mb_len = mbrlen (mb_start, (buf + size) - (beg + offset), &s);
+           if (mb_len == (size_t) -2)
+             goto failure;
+           beg = mb_start;