package/libhttpparser: New package

http-parser provides a simple C API to parse HTTP responses and
requests.

This packaging uses the official Joyent repository.

[Thomas:
 - since we're always building the shared library, depend on
   !BR2_STATIC_LIBS in Config.in. We could build only the static
   library, but then we would have to do all the lib installation
   manually.
 - indent using tabs in Config.in
 - use 'make install' instead of handcoding the library installation.
 - use $(TARGET_CONFIGURE_OPTS) instead of just CC= and LD=.
 - use tabs for indentation in commands instead of spaces
 - add patch to fix reinstallation.]

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/Config.in

@@ -979,6 +979,7 @@ menu "Networking"
 	source "package/libeXosip2/Config.in"
 	source "package/libfcgi/Config.in"
 	source "package/libgsasl/Config.in"
+	source "package/libhttpparser/Config.in"
 	source "package/libidn/Config.in"
 	source "package/libiscsi/Config.in"
 	source "package/libmbus/Config.in"

package/libhttpparser/0001-Use-f-option-when-calling-ln-at-install-time.patch

@@ -0,0 +1,34 @@
+From d9dfeca8736318eaad5cd4554cbae059469decde Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Fri, 28 Aug 2015 19:02:11 +0200
+Subject: [PATCH] Use -f option when calling ln at install time
+
+This allows "make install; make install" to work properly.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ Makefile | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 373709c..6206b09 100644
+--- a/Makefile
++++ b/Makefile
+@@ -113,12 +113,12 @@ tags: http_parser.c http_parser.h test.c
+ install: library
+ 	$(INSTALL) -D  http_parser.h $(INCLUDEDIR)/http_parser.h
+ 	$(INSTALL) -D $(SONAME) $(LIBDIR)/$(SONAME)
+-	ln -s $(LIBDIR)/$(SONAME) $(LIBDIR)/libhttp_parser.so
++	ln -sf $(LIBDIR)/$(SONAME) $(LIBDIR)/libhttp_parser.so
+ 
+ install-strip: library
+ 	$(INSTALL) -D  http_parser.h $(INCLUDEDIR)/http_parser.h
+ 	$(INSTALL) -D -s $(SONAME) $(LIBDIR)/$(SONAME)
+-	ln -s $(LIBDIR)/$(SONAME) $(LIBDIR)/libhttp_parser.so
++	ln -sf $(LIBDIR)/$(SONAME) $(LIBDIR)/libhttp_parser.so
+ 
+ uninstall:
+ 	rm $(INCLUDEDIR)/http_parser.h
+-- 
+2.5.0
+

package/libhttpparser/Config.in

@@ -0,0 +1,17 @@
+config BR2_PACKAGE_LIBHTTPPARSER
+	bool "libhttpparser"
+	depends on !BR2_STATIC_LIBS
+	help
+	  This is a parser for HTTP messages written in C. It
+	  parses both requests and responses. The parser is
+	  designed to be used in performance HTTP applications.
+	  It does not make any syscalls nor allocations, it does
+	  not buffer data, it can be interrupted at anytime.
+	  Depending on your architecture, it only requires about
+	  40 bytes of data per message stream (in a web server
+	  that is per connection).
+
+	  https://github.com/joyent/http-parser
+
+comment "libhttpparser needs a toolchain w/ dynamic library"
+	depends on BR2_STATIC_LIBS

package/libhttpparser/libhttpparser.mk

@@ -0,0 +1,26 @@
+################################################################################
+#
+# libhttpparser
+#
+################################################################################
+
+LIBHTTPPARSER_VERSION = v2.5.0
+LIBHTTPPARSER_SITE = $(call github,joyent,http-parser,$(LIBHTTPPARSER_VERSION))
+LIBHTTPPARSER_INSTALL_STAGING = YES
+LIBHTTPPARSER_LICENSE = MIT
+LIBHTTPPARSER_LICENSE_FILES = LICENSE-MIT
+
+define LIBHTTPPARSER_BUILD_CMDS
+	$(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D) library package
+endef
+
+define LIBHTTPPARSER_INSTALL_STAGING_CMDS
+	$(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D) PREFIX=$(STAGING_DIR)/usr install
+	$(INSTALL) -D -m 0644 $(@D)/libhttp_parser.a $(STAGING_DIR)/usr/lib/libhttp_parser.a
+endef
+
+define LIBHTTPPARSER_INSTALL_TARGET_CMDS
+	$(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D) PREFIX=$(TARGET_DIR)/usr install
+endef
+
+$(eval $(generic-package))