[Git][ghc/ghc][master] Repair c++ probing on OpenBSD

[Marge Bot (@marge-bot)]

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC


Commits:
43e574f0 by Greg Steuck at 2022-09-14T17:17:43-04:00
Repair c++ probing on OpenBSD

Failure without this change:
```
checking C++ standard library flavour... libc++
checking for linkage against 'c++ c++abi'... failed
checking for linkage against 'c++ cxxrt'... failed
configure: error: Failed to find C++ standard library
```

- - - - -


1 changed file:

- m4/fp_find_cxx_std_lib.m4


Changes:

=====================================
m4/fp_find_cxx_std_lib.m4
=====================================
@@ -75,6 +75,7 @@ EOF
         case $CXX_STD_LIB_FLAVOUR in
         c++)
             try_libs "-lc++ -lc++abi" "libc++.so" "c++ c++abi" || \
+            try_libs "-lc++ -lc++abi -lpthread" "libc++.so" "c++ c++abi pthread" || \
             try_libs "-lc++ -lcxxrt" "libc++.so" "c++ cxxrt" ||
             AC_MSG_ERROR([Failed to find C++ standard library]) ;;
         stdc++)



View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/43e574f04fc2b612356a9805abe60b708b0b32c9

-- 
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/43e574f04fc2b612356a9805abe60b708b0b32c9
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