3 files changed, 105 insertions, 0 deletions
diff --git a/dev-lang/crystal/crystal-0.20.5-r2.ebuild b/dev-lang/crystal/crystal-0.20.5-r2.ebuild
new file mode 100644
index 000000000000..d550e2aca555
--- /dev/null
+++ b/dev-lang/crystal/crystal-0.20.5-r2.ebuild
@@ -0,0 +1,93 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+inherit multiprocessing toolchain-funcs
+
+BV=0.20.4-1
+BV_AMD64=${BV}-linux-x86_64
+BV_X86=${BV}-linux-i686
+
+DESCRIPTION="The Crystal Programming Language"
+HOMEPAGE="http://crystal-lang.org"
+SRC_URI="https://github.com/crystal-lang/crystal/archive/${PV}.tar.gz -> ${P}.tar.gz
+	amd64? ( https://github.com/crystal-lang/crystal/releases/download/${PV}/crystal-${BV_AMD64}.tar.gz )
+	x86? ( https://github.com/crystal-lang/crystal/releases/download/${PV}/crystal-${BV_X86}.tar.gz )"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="doc debug examples +xml +yaml"
+
+# dev-libs/boehm-gc[static-libs] dependency problem,  check the issue: https://github.com/manastech/crystal/issues/1382
+DEPEND="
+	>=sys-devel/llvm-3.9.0
+	dev-libs/boehm-gc[static-libs,threads]
+	dev-libs/libatomic_ops
+	dev-libs/libevent
+	dev-libs/libpcre
+	sys-libs/libunwind
+	dev-libs/pcl
+	dev-libs/gmp:0
+"
+RDEPEND="${DEPEND}
+	xml? ( dev-libs/libxml2 )
+	yaml? ( dev-libs/libyaml )
+"
+
+PATCHES=(
+	"${FILESDIR}"/${P}-AR.patch
+	"${FILESDIR}"/${P}-verbose.patch
+	"${FILESDIR}"/${P}-LDFLAGS.patch
+)
+
+src_compile() {
+	emake \
+		$(usex debug "" release=1) \
+		stats=1 \
+		threads=$(makeopts_jobs) \
+		verbose=1 \
+		\
+		CC=$(tc-getCC) \
+		CXX=$(tc-getCXX) \
+		AR=$(tc-getAR) \
+		\
+		PATH="${WORKDIR}"/${PN}-${BV}/bin:"${PATH}" \
+		CRYSTAL_PATH=src \
+		CRYSTAL_CONFIG_VERSION=${PV} \
+		CRYSTAL_CONFIG_PATH="lib:${EPREFIX}/usr/$(get_libdir)/crystal"
+	use doc && emake doc
+}
+
+src_test() {
+	emake spec \
+		$(usex debug "" release=1) \
+		stats=1 \
+		threads=$(makeopts_jobs) \
+		verbose=1 \
+		\
+		CC=$(tc-getCC) \
+		CXX=$(tc-getCXX) \
+		AR=$(tc-getAR) \
+		\
+		CRYSTAL_PATH=src \
+		CRYSTAL_CONFIG_VERSION=${PV}
+}
+
+src_install() {
+	insinto /usr/$(get_libdir)/crystal
+	doins -r src/.
+	dobin .build/crystal
+
+	insinto /usr/share/zsh/site-functions
+	newins etc/completion.zsh _crystal
+
+	use examples && dodoc -r samples
+
+	if use doc ; then
+		docinto api
+		dodoc -r doc/.
+	fi
+}
diff --git a/dev-lang/crystal/files/crystal-0.20.5-LDFLAGS.patch b/dev-lang/crystal/files/crystal-0.20.5-LDFLAGS.patch
new file mode 100644
index 000000000000..42970a84a7c0
--- /dev/null
+++ b/dev-lang/crystal/files/crystal-0.20.5-LDFLAGS.patch
@@ -0,0 +1,9 @@
+diff --git a/Makefile b/Makefile
+index fa71479..d316bbc 100644
+--- a/Makefile
++++ b/Makefile
+@@ -24,3 +24,3 @@ SOURCES := $(shell find src -name '*.cr')
+ SPEC_SOURCES := $(shell find spec -name '*.cr')
+-FLAGS := $(if $(release),--release )$(if $(stats),--stats )$(if $(threads),--threads $(threads) )$(if $(debug),-d )$(if $(verbose),--verbose )
++FLAGS := $(if $(release),--release )$(if $(stats),--stats )$(if $(threads),--threads $(threads) )$(if $(debug),-d )$(if $(verbose),--verbose )$(if $(LDFLAGS),--link-flags="$(LDFLAGS)" )
+ VERBOSE := $(if $(verbose),-v )
diff --git a/dev-lang/crystal/metadata.xml b/dev-lang/crystal/metadata.xml
index e8be383215d8..80b55be2293e 100644
--- a/dev-lang/crystal/metadata.xml
+++ b/dev-lang/crystal/metadata.xml
@@ -19,6 +19,9 @@
 		disallowing certain dynamic aspects of Ruby.
 	</longdescription>
 	<use>
+		<flag name="debug">
+			Build each module as a separate object file. Speeds build up.
+		</flag>
 		<flag name="yaml">
 			Use the <pkg>dev-libs/libyaml</pkg> library to enable Crystal yaml
 			module