package/grpc: bump to version 1.45.2

grpc now requires gcc >= 5.1
see https://groups.google.com/g/grpc-io/c/Plvp29818BE

Signed-off-by: Michael Nosthoff <buildroot@heine.tech>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/grpc/Config.in

@@ -3,7 +3,7 @@ config BR2_PACKAGE_GRPC
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_TOOLCHAIN_HAS_THREADS # protobuf, re2
 	depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS # protobuf
-	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # protobuf, re2, libabseil-cpp
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5
 	depends on !BR2_STATIC_LIBS # protobuf, libabseil-cpp
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 || BR2_TOOLCHAIN_HAS_ATOMIC
 	depends on BR2_PACKAGE_LIBABSEIL_CPP_ARCH_SUPPORTS
@@ -19,9 +19,9 @@ config BR2_PACKAGE_GRPC
 
 	  http://github.com/grpc/grpc
 
-comment "grpc needs a toolchain w/ C++, threads, dynamic library, gcc >= 4.9"
+comment "grpc needs a toolchain w/ C++, threads, dynamic library, gcc >= 5"
 	depends on BR2_PACKAGE_LIBABSEIL_CPP_ARCH_SUPPORTS
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 || BR2_TOOLCHAIN_HAS_ATOMIC
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS \
-		|| BR2_STATIC_LIBS || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+		|| BR2_STATIC_LIBS || !BR2_TOOLCHAIN_GCC_AT_LEAST_5
 	depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS

package/grpc/grpc.hash

@@ -1,3 +1,3 @@
 # Locally computed
-sha256  8c05641b9f91cbc92f51cc4a5b3a226788d7a63f20af4ca7aaca50d92cc94a0d  grpc-1.44.0.tar.gz
+sha256  e18b16f7976aab9a36c14c38180f042bb0fd196b75c9fd6a20a2b5f934876ad6  grpc-1.45.2.tar.gz
 sha256  277adcc1dcef8359b1efb48e628635f88b40be8fbd64e82fd0169930d135d7a5  LICENSE

package/grpc/grpc.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-GRPC_VERSION = 1.44.0
+GRPC_VERSION = 1.45.2
 GRPC_SITE = $(call github,grpc,grpc,v$(GRPC_VERSION))
 GRPC_LICENSE = Apache-2.0, BSD-3-Clause (third_party code), MPL-2.0 (etc/roots.pem)
 GRPC_LICENSE_FILES = LICENSE
@@ -63,14 +63,6 @@ GRPC_CFLAGS += -O0
 GRPC_CXXFLAGS += -O0
 endif
 
-# Toolchains older than gcc5 will fail to compile with -0s due to:
-# error: failure memory model cannot be stronger than success memory model for
-# '__atomic_compare_exchange', so we use -O2 in these cases
-ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_5):$(BR2_OPTIMIZE_S),:y)
-GRPC_CFLAGS += -O2
-GRPC_CXXFLAGS += -O2
-endif
-
 GRPC_CONF_OPTS += \
 	-DCMAKE_C_FLAGS="$(GRPC_CFLAGS)" \
 	-DCMAKE_CXX_FLAGS="$(GRPC_CXXFLAGS)"