htpdate: Add recipe

Fix build with musl

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Andreas Müller <schnitzeltony@gmail.com>
Acked-by: Andreas Müller <schnitzeltony@gmail.com>

meta-networking/recipes-support/htpdate/htpdate/0001-Make-environment-variables-assignments-to-be-weak.patch

@@ -0,0 +1,31 @@
+From 04603f52d793f964653e6a985944400fe4fa87ee Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 13 Jun 2018 17:50:20 -0700
+Subject: [PATCH] Make environment variables assignments to be weak
+
+So that OE can override them for cross builds
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ Makefile | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 1c80c09..884126c 100644
+--- a/Makefile
++++ b/Makefile
+@@ -2,11 +2,11 @@ prefix = $(DESTDIR)/usr
+ bindir = ${prefix}/bin
+ mandir = ${prefix}/share/man
+ 
+-CC = gcc
++CC ?= gcc
+ CFLAGS += -Wall -std=c99 -pedantic -O2
+ 
+-INSTALL = /usr/bin/install -c
+-STRIP = /usr/bin/strip -s
++INSTALL ?= /usr/bin/install -c
++STRIP ?= /usr/bin/strip -s
+ 
+ all: htpdate
+ 

meta-networking/recipes-support/htpdate/htpdate/0001-Replace-ntp_adjtime-with-adjtimex.patch

@@ -0,0 +1,40 @@
+From 75646a2d2df14fdbc4a01e222a779afac94861d1 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 14 Jun 2018 20:11:08 -0700
+Subject: [PATCH] Replace ntp_adjtime with adjtimex.
+
+ntp_adjtime in glibc is an alias to adjtimex and
+musl does not provide ntp_adjtime at all
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Pending
+
+ htpdate.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/htpdate.c b/htpdate.c
+index 4171efe..ff0bf8d 100644
+--- a/htpdate.c
++++ b/htpdate.c
+@@ -391,7 +391,7 @@ static int htpdate_adjtimex( double drift ) {
+ 
+ 	/* Read current kernel frequency */
+ 	tmx.modes = 0;
+-	ntp_adjtime(&tmx);
++	adjtimex(&tmx);
+ 
+ 	/* Calculate new frequency */
+ 	freq = (long)(65536e6 * drift);
+@@ -406,7 +406,7 @@ static int htpdate_adjtimex( double drift ) {
+ 
+ 	/* Become root */
+ 	swuid(0);
+-	return( ntp_adjtime(&tmx) );
++	return( adjtimex(&tmx) );
+ 
+ }
+ 
+-- 
+2.17.1
+

meta-networking/recipes-support/htpdate/htpdate_1.2.0.bb

@@ -0,0 +1,39 @@
+# Copyright (C) 2018 Khem Raj <raj.khem@gmail.com>
+# Released under the MIT license (see COPYING.MIT for the terms)
+
+SUMMARY = "HTTP based time synchronization tool"
+
+DESCRIPTION = "The  HTTP Time Protocol (HTP) is used to synchronize a computer's time with\
+ web servers as reference time source. This program can be used instead\
+ ntpdate or similar, in networks that has a firewall blocking the NTP port.\
+ Htpdate will synchronize the computer time to Greenwich Mean Time (GMT),\
+ using the timestamps from HTTP headers found in web servers response (the\
+ HEAD method will be used to get the information).\
+ Htpdate works through proxy servers. Accuracy of htpdate will be usually\
+ within 0.5 seconds (better with multiple servers).\
+"
+
+HOMEPAGE = "http://www.vervest.org/htp/"
+
+LICENSE = "GPL-2.0+"
+LIC_FILES_CHKSUM = "file://htpdate.c;beginline=26;endline=30;md5=d7018a4d2c5a6eab392709a05e5e168a"
+
+SRC_URI = "http://www.vervest.org/htp/archive/c/htpdate-${PV}.tar.xz \
+           file://0001-Make-environment-variables-assignments-to-be-weak.patch \
+           file://0001-Replace-ntp_adjtime-with-adjtimex.patch \
+           "
+SRC_URI[md5sum] = "9d5ca69be06edf5d535b52b5f790da4e"
+SRC_URI[sha256sum] = "22b2cf3ec45b0eedecddd3ad2a3d754ac57942ae7dcbac410d254935f0bdbc03"
+
+do_configure () {
+	:
+}
+
+do_compile () {
+	oe_runmake
+}
+
+do_install () {
+	oe_runmake install 'INSTALL=install' 'STRIP=echo' 'DESTDIR=${D}'
+}
+