fanquake 54ce4fac80 build: improve macro for testing -latomic requirement ... riscv builds are currently failing because -latomic isn't being linked against, when it is needed: ```bash /home/ubuntu/build/bitcoin/distsrc-riscv64-linux-gnu/src/bitcoin-util.cpp:98: undefined reference to `__atomic_exchange_1' ``` This exteneds our macro to ensure that -latomic is linked against when required.		2021-01-15 10:54:07 +08:00
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m4	build: improve macro for testing -latomic requirement	2021-01-15 10:54:07 +08:00