From 2eeab3a8933f5fb53329511b4e1cbe3e9aba829c Mon Sep 17 00:00:00 2001
From: Weijia Wang <9713184+wegank@users.noreply.github.com>
Date: Mon, 22 Apr 2024 04:53:30 +0200
Subject: [PATCH] chickenPackages_5: fix build with clang

---
 .../compilers/chicken/5/overrides.nix         | 34 ++++++++++++++++---
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/pkgs/development/compilers/chicken/5/overrides.nix b/pkgs/development/compilers/chicken/5/overrides.nix
index adaad31b52bb..863850818c68 100644
--- a/pkgs/development/compilers/chicken/5/overrides.nix
+++ b/pkgs/development/compilers/chicken/5/overrides.nix
@@ -36,11 +36,30 @@ in
     // (addToPropagatedBuildInputs (with chickenEggs; [ srfi-1 srfi-13 ]) old);
   cmark = addToBuildInputs pkgs.cmark;
   dbus = addToBuildInputsWithPkgConfig pkgs.dbus;
-  epoxy = addToPropagatedBuildInputsWithPkgConfig pkgs.libepoxy;
+  epoxy = old:
+    (addToPropagatedBuildInputsWithPkgConfig pkgs.libepoxy old)
+    // lib.optionalAttrs stdenv.cc.isClang {
+      env.NIX_CFLAGS_COMPILE = toString [
+        "-Wno-error=incompatible-function-pointer-types"
+        "-Wno-error=int-conversion"
+      ];
+    };
   espeak = addToBuildInputsWithPkgConfig pkgs.espeak-ng;
   exif = addToBuildInputsWithPkgConfig pkgs.libexif;
-  expat = addToBuildInputsWithPkgConfig pkgs.expat;
-  ezxdisp = addToBuildInputsWithPkgConfig pkgs.xorg.libX11;
+  expat = old:
+    (addToBuildInputsWithPkgConfig pkgs.expat old)
+    // lib.optionalAttrs stdenv.cc.isClang {
+      env.NIX_CFLAGS_COMPILE = toString [
+        "-Wno-error=incompatible-function-pointer-types"
+      ];
+    };
+  ezxdisp = old:
+    (addToBuildInputsWithPkgConfig pkgs.xorg.libX11 old)
+    // lib.optionalAttrs stdenv.cc.isClang {
+      env.NIX_CFLAGS_COMPILE = toString [
+        "-Wno-error=implicit-function-declaration"
+      ];
+    };
   freetype = addToBuildInputsWithPkgConfig pkgs.freetype;
   fuse = addToBuildInputsWithPkgConfig pkgs.fuse;
   gl-utils = addPkgConfig;
@@ -54,7 +73,14 @@ in
     // lib.optionalAttrs stdenv.isDarwin (addToCscOptions "-L -linotify" old);
   leveldb = addToBuildInputs pkgs.leveldb;
   magic = addToBuildInputs pkgs.file;
-  mdh = addToBuildInputs pkgs.pcre;
+  mdh = old:
+    (addToBuildInputs pkgs.pcre old)
+    // lib.optionalAttrs stdenv.cc.isClang {
+      env.NIX_CFLAGS_COMPILE = toString [
+        "-Wno-error=implicit-function-declaration"
+        "-Wno-error=implicit-int"
+      ];
+    };
   # missing dependency in upstream egg
   mistie = addToPropagatedBuildInputs (with chickenEggs; [ srfi-1 ]);
   mosquitto = addToPropagatedBuildInputs ([ pkgs.mosquitto ]);