rdedup: fix cross

srcpkgs/rdedup/patches/bindgen-cross.patch

@@ -0,0 +1,12 @@
+patch bindgen to use BINDGEN_EXTRA_CLANG_ARGS variable to set sysroot for cross builds
+https://github.com/jnbr/rust-bindgen/tree/0.37.4-clang_args
+
+--- Cargo.toml.orig	2019-06-15 13:18:05.509893680 +0200
++++ Cargo.toml	2019-06-15 13:19:48.854887006 +0200
+@@ -53,3 +53,6 @@
+ slog-term = "2"
+ slog-async = "2"
+ url = "1"
++
++[patch.crates-io]
++bindgen = {git = 'https://github.com/jnbr/rust-bindgen', rev = '4afb05213b3e7e0ec928b84ea85d9f2b99477586'}

srcpkgs/rdedup/template

@@ -1,18 +1,23 @@
 # Template file for 'rdedup'
 pkgname=rdedup
 version=3.1.1
-revision=2
+revision=3
 wrksrc=rdedup-rdedup-v${version}
 build_style=cargo
-hostmakedepends="pkg-config"
-makedepends="libressl-devel liblzma-devel libsodium-devel clang"
+hostmakedepends="pkg-config clang"
+makedepends="libressl-devel liblzma-devel libsodium-devel"
 short_desc="Data deduplication engine"
 maintainer="Renato Aguiar <renato@renag.me>"
 license="MPL-2.0"
 homepage="https://github.com/dpc/rdedup"
 distfiles="https://github.com/dpc/rdedup/archive/rdedup-v${version}.tar.gz"
 checksum=5e7c09c40897cd2f2635e8c213c2ff0f5c4d7ceccbd22980cd4cb0a16f3dfc28
-nocross="error: failed to run custom build command for libloading v0.5.0"
+
+if [ "$CROSS_BUILD" ]; then
+	export HOST_CC="$BUILD_CC"
+	export HOST_CFLAGS="$BUILD_CFLAGS"
+	export BINDGEN_EXTRA_CLANG_ARGS="--sysroot=${XBPS_CROSS_BASE}"
+fi
 
 pre_build() {
 	cargo update --package openssl-sys --precise 0.9.46