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ucl: fix on Darwin/with pkgsLLVM

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Modern clang versions error with `-Wimplicit-function-declaration`
[by default]; this causes `ucl`'s `configure` scripts check for ANSI C
headers (`stddef.h`) to fail because its test assumes `exit` is
implicitly declared leading to build failures:
```console
checking for ANSI C header files... no
```

[by default]: https://reviews.llvm.org/D122983
This commit is contained in:
Rahul Butani 2024-05-10 02:26:08 -07:00
parent 446a3fbada
commit aef1a40ddb
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1 changed files with 3 additions and 2 deletions
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pkgs/development/libraries/ucl/default.nix
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@ -9,8 +9,9 @@ stdenv.mkDerivation rec {
sha256 = "b865299ffd45d73412293369c9754b07637680e5c826915f097577cd27350348"; sha256 = "b865299ffd45d73412293369c9754b07637680e5c826915f097577cd27350348";
}; };
# needed to successfully compile with gcc 6 # needed to successfully compile with gcc 6+ and modern clang versions where
env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isGNU "-std=c90"; # `-Wimplicit-function-declaration` is otherwise on and errors by default
env.CFLAGS = "-std=c89";
meta = { meta = {
homepage = "http://www.oberhumer.com/opensource/ucl/"; homepage = "http://www.oberhumer.com/opensource/ucl/";