pcre: move package to core

libpcre is required for libselinux which was added to core recently.
Move it to the core so core builds without the packages feed.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

libs/pcre/Config.in

@@ -1,11 +0,0 @@
-config PCRE_JIT_ENABLED
-	bool
-	depends on PACKAGE_libpcre && (arm || i386 || i686 || x86_64 || mips || mipsel || powerpc || sparc)
-	default y if (arm || i686 || x86_64)
-	prompt "Enable JIT compiler support"
-	help
-		Enable JIT (Just-In-Time) compiler support.
-
-		Enabling this option can give an about 10x performance increase on JIT operations. It can be desireable for e.g. high performance Apache mod_rewrite or HA-Proxy reqrep operations.
-
-		However, JIT should _only_ be enabled on architectures that are supported. Enabling JIT on unsupported platforms will result in a compilation failure. A list of supported architectures can be found here: https://pcre.org/original/doc/html/pcrejit.html#SEC3 .

libs/pcre/Makefile

@@ -1,119 +0,0 @@
-#
-# Copyright (C) 2006-2015 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-
-PKG_NAME:=pcre
-PKG_VERSION:=8.44
-PKG_RELEASE:=2
-
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
-PKG_SOURCE_URL:=@SF/$(PKG_NAME)
-PKG_HASH:=19108658b23b3ec5058edc9f66ac545ea19f9537234be1ec62b714c84399366d
-
-PKG_MAINTAINER:=Thomas Heil <heil@terminal-consulting.de>
-PKG_LICENSE:=BSD-3-Clause
-PKG_LICENSE_FILES:=LICENCE
-PKG_CPE_ID:=cpe:/a:pcre:pcre
-
-PKG_INSTALL:=1
-PKG_BUILD_PARALLEL:=1
-
-PKG_CONFIG_DEPENDS:=\
-	CONFIG_PACKAGE_libpcrecpp \
-	CONFIG_PCRE_JIT_ENABLED
-
-include $(INCLUDE_DIR)/uclibc++.mk
-include $(INCLUDE_DIR)/package.mk
-
-define Package/libpcre/default
-  SECTION:=libs
-  CATEGORY:=Libraries
-  URL:=https://www.pcre.org/
-endef
-
-define Package/libpcre/config
-  source "$(SOURCE)/Config.in"
-endef
-
-define Package/libpcre
-  $(call Package/libpcre/default)
-  TITLE:=A Perl Compatible Regular Expression library
-endef
-
-define Package/libpcre16
-  $(call Package/libpcre/default)
-  TITLE:=A Perl Compatible Regular Expression library (16bit support)
-endef
-
-define Package/libpcre32
-  $(call Package/libpcre/default)
-  TITLE:=A Perl Compatible Regular Expression library (32bit support)
-endef
-
-define Package/libpcrecpp
-  $(call Package/libpcre/default)
-  TITLE:=C++ wrapper for Perl Compatible Regular Expression library
-  DEPENDS:=+libpcre $(CXX_DEPENDS)
-endef
-
-TARGET_CFLAGS += $(FPIC)
-
-CONFIGURE_ARGS += \
-	--enable-utf8 \
-	--enable-unicode-properties \
-	--enable-pcre16 \
-	--enable-pcre32 \
-	$(if $(CONFIG_PCRE_JIT_ENABLED),--enable-jit,--disable-jit) \
-	--with-match-limit-recursion=16000 \
-	$(if $(CONFIG_PACKAGE_libpcrecpp),--enable,--disable)-cpp
-
-MAKE_FLAGS += \
-	CFLAGS="$(TARGET_CFLAGS)"
-
-define Build/InstallDev
-	$(INSTALL_DIR) $(1)/usr/bin
-	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/pcre-config $(1)/usr/bin/
-
-	$(INSTALL_DIR) $(2)/bin
-	$(LN) $(STAGING_DIR)/usr/bin/pcre-config $(2)/bin
-
-	$(INSTALL_DIR) $(1)/usr/include
-	$(CP) $(PKG_INSTALL_DIR)/usr/include/pcre*.h $(1)/usr/include/
-
-	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libpcre*.{a,so*} $(1)/usr/lib/
-
-	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libpcre*.pc $(1)/usr/lib/pkgconfig/
-endef
-
-define Package/libpcre/install
-	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libpcre{,posix}.so.* $(1)/usr/lib/
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libpcre.so $(1)/usr/lib/
-endef
-
-define Package/libpcre16/install
-	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libpcre16.so* $(1)/usr/lib/
-endef
-
-define Package/libpcre32/install
-	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libpcre32.so* $(1)/usr/lib/
-endef
-
-define Package/libpcrecpp/install
-	$(INSTALL_DIR) $(1)/usr/lib
-	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libpcrecpp.so.* $(1)/usr/lib/
-endef
-
-$(eval $(call BuildPackage,libpcre))
-$(eval $(call BuildPackage,libpcre16))
-$(eval $(call BuildPackage,libpcre32))
-$(eval $(call BuildPackage,libpcrecpp))