abseil-cpp: add recipe for git version

The repository contains the Abseil C++ library code. Abseil is an
open-source collection of C++ code (compliant to C++11) designed to
augment the C++ standard library.

https://github.com/abseil/abseil-cpp

Signed-off-by: Changyu Li <Changyu.Li@microsoft.com>
Signed-off-by: Sinan Kaya <sinan.kaya@microsoft.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/abseil-cpp/abseil-cpp_git.bb

@@ -0,0 +1,52 @@
+SUMMARY = "Abseil is a cpp library like STL"
+DESCRIPTION = "Abseil provides pieces missing from the C++ standard. Contains \
+additional useful libraries like algorithm, container, debugging, hash, memory, \
+meta, numeric, strings, synchronization, time, types and utility"
+HOMEPAGE = "https://abseil.io/"
+SECTION = "libs"
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=df52c6edb7adc22e533b2bacc3bd3915"
+
+SRCREV = "aa844899c937bde5d2b24f276b59997e5b668bde"
+BRANCH = "lts_2019_08_08"
+SRC_URI = "git://github.com/abseil/abseil-cpp;branch=${BRANCH}                \
+           file://0001-Remove-maes-option-from-cross-compilation.patch        \
+           file://0002-Add-forgotten-ABSL_HAVE_VDSO_SUPPORT-conditional.patch \
+           file://0003-Add-fPIC-option.patch                                  \
+          "
+
+S = "${WORKDIR}/git"
+
+ASNEEDED_class-native = ""
+ASNEEDED_class-nativesdk = ""
+
+inherit cmake
+
+BBCLASSEXTEND = "native nativesdk"
+ALLOW_EMPTY_${PN} = "1"
+
+python () {
+    arch = d.getVar("TARGET_ARCH")
+
+    if arch == "aarch64":
+        tunes = d.getVar("TUNE_FEATURES")
+        if not tunes:
+            raise bb.parse.SkipPackage("%s-%s Needs support for crypto on armv8" % (pkgn, pkgv))
+            return
+        pkgn = d.getVar("PN")
+        pkgv = d.getVar("PV")
+        if "crypto" not in tunes:
+            raise bb.parse.SkipPackage("%s-%s Needs support for crypto on armv8" % (pkgn, pkgv))
+
+    if arch == "x86_64":
+        tunes = d.getVar("TUNE_FEATURES")
+        if not tunes:
+           raise bb.parse.SkipPackage("%s-%s Needs support for corei7 on x86_64" % (pkgn, pkgv))
+           return
+        pkgn = d.getVar("PN")
+        pkgv = d.getVar("PV")
+        if "corei7" not in tunes:
+            raise bb.parse.SkipPackage("%s-%s Needs support for corei7 on x86_64" % (pkgn, pkgv))
+
+}
+