From 411f10502c02d3ad7349c9c9521a831c7a5ad959 Mon Sep 17 00:00:00 2001
From: Steven Walter <swalter@lexmark.com>
Date: Thu, 18 Jun 2015 15:19:14 -0400
Subject: [PATCH] rust-llvm-native: build LLVM in its own recipe

rust takes a painfully long time to build.  A non-trivial part of that
is building LLVM.  Fortuitiously, the LLVM component is common between
the -native compiler and all variants of the -cross compiler.  That
means we can build it once, and reuse the output for any flavor of rust.
That saves build time, and it utilizes bitbake's sstate more
efficiently.  It's win/win!
---
 recipes/rust/rust-llvm-native_1.1.0.bb | 27 ++++++++++++++++++++++++++
 recipes/rust/rust-release.inc          |  1 -
 recipes/rust/rust_1.1.0.bb             |  1 +
 3 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 recipes/rust/rust-llvm-native_1.1.0.bb

diff --git a/recipes/rust/rust-llvm-native_1.1.0.bb b/recipes/rust/rust-llvm-native_1.1.0.bb
new file mode 100644
index 0000000..207bd2c
--- /dev/null
+++ b/recipes/rust/rust-llvm-native_1.1.0.bb
@@ -0,0 +1,27 @@
+SUMMARY = "LLVM compiler framework (packaged with rust)"
+LICENSE = "NCSA"
+
+LIC_FILES_CHKSUM = "file://LICENSE.TXT;md5=47e311aa9caedd1b3abf098bd7814d1d"
+
+# 1.1.0
+require rust-release.inc
+SRC_URI[rust.md5sum] = "5f2f923f8d1c77a55721d1f0813a158a"
+SRC_URI[rust.sha256sum] = "cb09f443b37ec1b81fe73c04eb413f9f656859cf7d00bc5088008cbc2a63fa8a"
+
+S = "${WORKDIR}/rustc-${PV}/src/llvm"
+
+inherit autotools
+inherit native
+
+EXTRA_OECONF += "--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
+EXTRA_OECONF += "--enable-optimized"
+EXTRA_OECONF += "--disable-bindings"
+
+do_install_append () {
+	cd ${D}${bindir}
+	ln -s *-llc llc
+	for i in *-llvm-*; do
+		link=$(echo $i | sed -e 's/.*-llvm-\(.*\)/\1/')
+		ln -s $i llvm-$link
+	done
+}
diff --git a/recipes/rust/rust-release.inc b/recipes/rust/rust-release.inc
index fd8e3da..7ece6e1 100644
--- a/recipes/rust/rust-release.inc
+++ b/recipes/rust/rust-release.inc
@@ -3,5 +3,4 @@ SRC_URI = "\
 "
 
 S = "${WORKDIR}/rustc-${PV}"
-require rust.inc
 
diff --git a/recipes/rust/rust_1.1.0.bb b/recipes/rust/rust_1.1.0.bb
index 7ada207..5e75bd8 100644
--- a/recipes/rust/rust_1.1.0.bb
+++ b/recipes/rust/rust_1.1.0.bb
@@ -1,5 +1,6 @@
 # 1.1.0
 require rust-release.inc
+require rust.inc
 SRC_URI[rust.md5sum] = "5f2f923f8d1c77a55721d1f0813a158a"
 SRC_URI[rust.sha256sum] = "cb09f443b37ec1b81fe73c04eb413f9f656859cf7d00bc5088008cbc2a63fa8a"