Other changes:
- Remove upstream patch 0004-Fix-gettid-naming-conflict.patch
- Remove upstream patch 0005-Rename-gettid-functions.patch
- Add a check for BR2_TOOLCHAIN_GCC_AT_LEAST_5 in grpc.mk. If the
selected toolchain is not at least version 5 or higher and the
optimization level is -Os, set the GRPC_CFLAGS and GRPC_CXXFLAGS
optimizations to -O2. This check prevents the following error:
error: failure memory model cannot be stronger than success memory model for '__atomic_compare_exchange'
Tested with test-pkg, all tests passed:
br-arm-full [1/6]: OK
br-arm-cortex-a9-glibc [2/6]: OK
br-arm-cortex-m4-full [3/6]: SKIPPED
br-x86-64-musl [4/6]: OK
br-arm-full-static [5/6]: SKIPPED
Signed-off-by: Adam Duskett <Aduskett@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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