[Mod] First commit

package/libabseil-cpp/0001-force-position-independent-code.patch

@@ -0,0 +1,38 @@
+From d170b19e500d85381369e379771be8d7816bcc92 Mon Sep 17 00:00:00 2001
+From: Adam Duskett <Aduskett@gmail.com>
+Date: Tue, 21 Jul 2020 13:08:50 -0700
+Subject: [PATCH] force position independent code
+
+Without this option, programs building for arm64 or x86-64 will fail when
+attempting to link to the built libraries with the following (abbreviated)
+error:
+
+"relocation against `.rodata' can not be used when making a shared object;
+recompile with -fPIC."
+
+Because libabseil-cpp builds static libraries, it is better to set the
+POSITION_INDEPENDENT_CODE to ON instead of forcing fPIC, as forcing fPIC may
+cause relocation errors when shared libraries link against the built static
+libraries.
+
+Signed-off-by: Adam Duskett <Aduskett@gmail.com>
+---
+ CMake/AbseilHelpers.cmake | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
+index 86ff9eb..bdb7a89 100644
+--- a/CMake/AbseilHelpers.cmake
++++ b/CMake/AbseilHelpers.cmake
+@@ -209,6 +209,8 @@ function(absl_cc_library)
+     set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD ${ABSL_CXX_STANDARD})
+     set_property(TARGET ${_NAME} PROPERTY CXX_STANDARD_REQUIRED ON)
+ 
++    # Without this setting, other programs such as GRPC will fail when linking.
++    set_property(TARGET ${_NAME} PROPERTY POSITION_INDEPENDENT_CODE ON)
+     # When being installed, we lose the absl_ prefix.  We want to put it back
+     # to have properly named lib files.  This is a no-op when we are not being
+     # installed.
+-- 
+2.26.2
+

package/libabseil-cpp/Config.in

@@ -0,0 +1,37 @@
+# see absl/debugging/internal/examine_stack.cc for the list of
+# architectures that are supported, and for which ucontext is used.
+config BR2_PACKAGE_LIBABSEIL_CPP_ARCH_SUPPORTS
+	bool
+	default y if BR2_aarch64 || BR2_aarch64_be
+	default y if BR2_arm || BR2_armeb
+	default y if BR2_i386
+	default y if BR2_m68k
+	default y if BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
+	default y if BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le
+	default y if BR2_riscv
+	default y if BR2_s390x
+	default y if BR2_sh
+	default y if BR2_sparc || BR2_sparc64
+	default y if BR2_x86_64
+	depends on BR2_TOOLCHAIN_HAS_UCONTEXT
+
+config BR2_PACKAGE_LIBABSEIL_CPP
+	bool "libabseil-cpp"
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_STATIC_LIBS # uses dlfcn.h
+	depends on BR2_PACKAGE_LIBABSEIL_CPP_ARCH_SUPPORTS
+	help
+	  Abseil is an open-source collection of C++ library code
+	  designed to augment the C++ standard library. The Abseil
+	  library code is collected from Google's own C++ code base,
+	  has been extensively tested and used in production, and is
+	  the same code we depend on in our daily coding lives.
+
+	  https://github.com/abseil/abseil-cpp
+
+comment "libabseil-cpp needs a toolchain w/ gcc >= 4.9, C++, threads, dynamic library"
+	depends on BR2_PACKAGE_LIBABSEIL_CPP_ARCH_SUPPORTS
+	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS || \
+		BR2_STATIC_LIBS || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9

package/libabseil-cpp/libabseil-cpp.hash

@@ -0,0 +1,3 @@
+# Locally computed
+sha256  4208129b49006089ba1d6710845a45e31c59b0ab6bff9e5788a87f55c5abd602  libabseil-cpp-20220623.0.tar.gz
+sha256  c79a7fea0e3cac04cd43f20e7b648e5a0ff8fa5344e644b0ee09ca1162b62747  LICENSE

package/libabseil-cpp/libabseil-cpp.mk

@@ -0,0 +1,24 @@
+################################################################################
+#
+# libabseil-cpp
+#
+################################################################################
+
+LIBABSEIL_CPP_VERSION = 20220623.0
+LIBABSEIL_CPP_SITE = $(call github,abseil,abseil-cpp,$(LIBABSEIL_CPP_VERSION))
+LIBABSEIL_CPP_LICENSE = Apache-2.0
+LIBABSEIL_CPP_LICENSE_FILES = LICENSE
+LIBABSEIL_CPP_INSTALL_STAGING = YES
+
+LIBABSEIL_CPP_CONF_OPTS = \
+	-DCMAKE_CXX_STANDARD=11 \
+	-DABSL_ENABLE_INSTALL=ON \
+	-DABSL_USE_GOOGLETEST_HEAD=OFF
+
+HOST_LIBABSEIL_CPP_CONF_OPTS = \
+	-DCMAKE_CXX_STANDARD=11 \
+	-DABSL_ENABLE_INSTALL=ON \
+	-DABSL_USE_GOOGLETEST_HEAD=OFF
+
+$(eval $(cmake-package))
+$(eval $(host-cmake-package))