diff options
| author | fanquake <fanquake@gmail.com> | 2021-01-15 10:54:07 +0800 |
|---|---|---|
| committer | fanquake <fanquake@gmail.com> | 2021-01-15 10:54:07 +0800 |
| commit | 54ce4fac80689621dcbcc76169b2b00b179ee743 (patch) | |
| tree | be6b3f7af5d5eb22d4141cd54a8157c449ed5b5b /build-aux/m4/l_atomic.m4 | |
| parent | 2c010b9c56f069efad2b2c10bffaef4ed059736e (diff) | |
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.
Diffstat (limited to 'build-aux/m4/l_atomic.m4')
| -rw-r--r-- | build-aux/m4/l_atomic.m4 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/build-aux/m4/l_atomic.m4 b/build-aux/m4/l_atomic.m4 index 75c43f9a92..5201a8cc7c 100644 --- a/build-aux/m4/l_atomic.m4 +++ b/build-aux/m4/l_atomic.m4 @@ -14,6 +14,9 @@ m4_define([_CHECK_ATOMIC_testbody], [[ #include <cstdint> int main() { + std::atomic<bool> lock{true}; + std::atomic_exchange(&lock, false); + std::atomic<int64_t> a{}; int64_t v = 5; |