busybox: Build with gcc for now

Building with clang causes less to segfault on 32-bit arm:
  https://github.com/termux/termux-packages/issues/1245

packages/busybox/Makefile.patch → packages/busybox/Makefile.patch.disabled

@@ -1,3 +1,7 @@
+Building with clang causes 'busybox less' to
+segfault in INIT_G() on arm, see
+https://github.com/termux/termux-packages/issues/1245
+
 diff -u -r ../busybox-1.26.2/Makefile ./Makefile
 --- ../busybox-1.26.2/Makefile	2017-01-10 17:01:16.000000000 +0100
 +++ ./Makefile	2017-06-27 23:34:15.465534834 +0200

packages/busybox/build.sh

@@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://busybox.net/
 TERMUX_PKG_DESCRIPTION="Tiny versions of many common UNIX utilities into a single small executable"
 TERMUX_PKG_ESSENTIAL=yes
 TERMUX_PKG_VERSION=1.27.1
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SHA256=c890ac53fb218eb4c6ad9ed3207a896783b142e6d306f292b8d9bec82af5f936
 TERMUX_PKG_SRCURL=https://busybox.net/downloads/busybox-${TERMUX_PKG_VERSION}.tar.bz2
 TERMUX_PKG_BUILD_IN_SRC=yes