libpqxx: update to 6.0.0

Closes #10874.

Signed-off-by: Enno Boland <gottox@voidlinux.eu>

srcpkgs/libpqxx/patches/musl.patch

@@ -0,0 +1,14 @@
+--- src/connection_base.cxx.orig	2017-12-24 23:47:41.000000000 +0100
++++ src/connection_base.cxx		2018-01-16 09:03:31.639728954 +0100
+@@ -38,10 +38,8 @@
+ #if defined(HAVE_UNISTD_H)
+ #include <unistd.h>
+ #endif
+-#if defined(HAVE_SYS_TIME_H)
+-#include <sys/time.h>
+-#endif
+ #endif
++#include <sys/time.h>
+ 
+ #include "libpq-fe.h"
+ 

srcpkgs/libpqxx/template

@@ -1,17 +1,17 @@
 # Template file for 'libpqxx'
 pkgname=libpqxx
-version=4.0.1
+version=6.0.0
 revision=1
 build_style=gnu-configure
-configure_args="--enable-shared"
+configure_args="--enable-shared --disable-documentation"
 hostmakedepends="python postgresql-libs-devel"
 makedepends="postgresql-libs-devel"
 short_desc="C++ connector for PostgreSQL"
 maintainer="John Regan <john@jrjrtech.com>"
 license="BSD"
 homepage="http://pqxx.org/development/libpqxx"
-distfiles="http://pqxx.org/download/software/libpqxx/libpqxx-${version}.tar.gz"
-checksum=097ceda2797761ce517faa5bee186c883df1c407cb2aada613a16773afeedc38
+distfiles="https://github.com/jtv/${pkgname}/archive/${version}.tar.gz"
+checksum=81cac92458efd799fadb0374107464320d93eba71de05aedf21afb9c8dda7c3a
 
 post_install() {
 	vlicense COPYING