ninja: add haiku minimum hrev for spawn.h

* restore 1.6.0 recipe for older hrevs.
* note Haikuporter is unable to pick the old one automatically.

dev-util/ninja/ninja-1.6.0.recipe

@@ -0,0 +1,45 @@
+SUMMARY="A small build system similar to make"
+DESCRIPTION="Ninja is a small build system with a focus on speed. It differs \
+from other build systems in two major respects: it is designed to have its \
+input files generated by a higher-level build system, and it is designed to \
+run builds as fast as possible.
+Ninja's low-level approach makes it perfect for embedding into more featureful \
+build systems. Via gyp it can build Chrome and v8 and node.js etc.; via CMake \
+it can build LLVM, KDE, Blender, etc."
+HOMEPAGE="http://martine.github.io/ninja/"
+COPYRIGHT="2014 Google Inc."
+LICENSE="Apache v2"
+REVISION="1"
+SOURCE_URI="https://github.com/martine/ninja/archive/v$portVersion.tar.gz"
+CHECKSUM_SHA256="b43e88fb068fe4d92a3dfd9eb4d19755dae5c33415db2e9b7b61b4659009cde7"
+PATCHES="ninja-$portVersion.patchset"
+
+ARCHITECTURES="!x86_gcc2 x86 x86_64"
+SECONDARY_ARCHITECTURES="?x86"
+
+PROVIDES="
+	ninja$secondaryArchSuffix = $portVersion
+	cmd:ninja = $portVersion
+	"
+REQUIRES="
+	haiku$secondaryArchSuffix
+	"
+BUILD_PREREQUIRES="
+	haiku${secondaryArchSuffix}_devel
+	haiku_devel
+	cmd:python2
+	cmd:g++$secondaryArchSuffix
+	cmd:gcc$secondaryArchSuffix
+	cmd:as$secondaryArchSuffix
+	"
+
+BUILD()
+{
+	python2 ./configure.py --bootstrap
+}
+
+INSTALL()
+{
+	mkdir -p $prefix/bin
+	cp ninja $prefix/bin
+}