Add buildroot 2018-02

buildroot/package/grep/Config.in

@@ -0,0 +1,12 @@
+config BR2_PACKAGE_GREP
+	bool "grep"
+	depends on BR2_USE_WCHAR
+	depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
+	help
+	  The GNU regular expression matcher.
+
+	  http://www.gnu.org/software/grep/grep.html
+
+comment "grep needs a toolchain w/ wchar"
+	depends on !BR2_USE_WCHAR
+	depends on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS

buildroot/package/grep/grep.hash

@@ -0,0 +1,4 @@
+# Locally calculated after checking signature
+# http://ftp.gnu.org/gnu/grep/grep-3.1.tar.xz.sig
+sha256 db625c7ab3bb3ee757b3926a5cfa8d9e1c3991ad24707a83dde8a5ef2bf7a07e  grep-3.1.tar.xz
+sha256 ca372a7d92560b1fa9f6d832b440e8bcd62d9adfa8870c98287deab66d98310e  COPYING

buildroot/package/grep/grep.mk

@@ -0,0 +1,33 @@
+################################################################################
+#
+# grep
+#
+################################################################################
+
+GREP_VERSION = 3.1
+GREP_SITE = $(BR2_GNU_MIRROR)/grep
+GREP_SOURCE = grep-$(GREP_VERSION).tar.xz
+GREP_LICENSE = GPL-3.0+
+GREP_LICENSE_FILES = COPYING
+GREP_DEPENDENCIES = $(TARGET_NLS_DEPENDENCIES)
+
+# link with iconv if enabled
+ifeq ($(BR2_PACKAGE_LIBICONV),y)
+GREP_CONF_ENV += LIBS=-liconv
+GREP_DEPENDENCIES += libiconv
+endif
+
+# link with pcre if enabled
+ifeq ($(BR2_PACKAGE_PCRE),y)
+GREP_CONF_OPTS += --enable-perl-regexp
+GREP_DEPENDENCIES += pcre
+else
+GREP_CONF_OPTS += --disable-perl-regexp
+endif
+
+# Full grep preferred over busybox grep
+ifeq ($(BR2_PACKAGE_BUSYBOX),y)
+GREP_DEPENDENCIES += busybox
+endif
+
+$(eval $(autotools-package))