package/farmhash: new package

This package is required by tensorflow-lite.

Tested-by: Stefan Hager <stefan.hager@ginzinger.com>
Signed-off-by: Stefan Hager <stefan.hager@ginzinger.com>
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>

DEVELOPERS

@@ -3034,6 +3034,7 @@ F:	package/ti-gfx/
 
 N:	Stefan Hager <stefan.hager@ginzinger.com>
 F:	package/cpuinfo/
+F:	package/farmhash/
 F:	package/fp16/
 F:	package/fft2d/
 F:	package/gemmlowp/

package/Config.in

@@ -2183,6 +2183,7 @@ menu "Other"
 	source "package/elfutils/Config.in"
 	source "package/ell/Config.in"
 	source "package/falcosecurity-libs/Config.in"
+	source "package/farmhash/Config.in"
 	source "package/fft2d/Config.in"
 	source "package/fftw/Config.in"
 	source "package/flann/Config.in"

package/farmhash/Config.in

@@ -0,0 +1,12 @@
+config BR2_PACKAGE_FARMHASH
+	bool "farmhash"
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 # C++11
+	help
+	  FarmHash, a family of hash functions.
+
+	  https://github.com/google/farmhash
+
+comment "farmhash needs a toolchain w/ C++11"
+	depends on !BR2_INSTALL_LIBSTDCPP || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_8

package/farmhash/farmhash.hash

@@ -0,0 +1,4 @@
+# Locally calculated
+sha256  18392cf0736e1d62ecbb8d695c31496b6507859e8c75541d7ad0ba092dc52115  farmhash-0d859a811870d10f53a594927d0d0b97573ad06d.tar.gz
+# License files, locally calculated
+sha256  4162dd091caae234f72d3b57e138174f733e736b2430a4c51b098b17d866fcb6  COPYING

package/farmhash/farmhash.mk

@@ -0,0 +1,14 @@
+################################################################################
+#
+# farmhash
+#
+################################################################################
+
+FARMHASH_VERSION = 0d859a811870d10f53a594927d0d0b97573ad06d
+FARMHASH_SITE = $(call github,google,farmhash,$(FARMHASH_VERSION))
+FARMHASH_LICENSE = MIT
+FARMHASH_LICENSE_FILES = COPYING
+FARMHASH_INSTALL_STAGING = YES
+FARMHASH_CONF_ENV += CXXFLAGS="$(TARGET_CXXFLAGS) -std=c++11"
+
+$(eval $(autotools-package))