pslib: fix build

pkgs/by-name/ps/pslib/cmake4.patch

@@ -0,0 +1,18 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 58a5b45..b41e6a3 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,3 +1,5 @@
++cmake_minimum_required(VERSION 3.10)
++
+ PROJECT(pslib C)
+ option(ENABLE_BMP   "Build with BMP support" ON)
+
+@@ -73,7 +75,6 @@ INCLUDE(CheckFunctionExists)
+ INCLUDE(TestBigEndian)
+ test_big_endian(WORDS_BIGENDIAN)
+
+-SUBDIRS( src )
+ SET(SOURCES
+        src/pslib.c
+        src/ps_memory.c

pkgs/by-name/ps/pslib/package.nix

@@ -21,6 +21,10 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-gaWNvBLuUUy0o+HWCOyG6KmzxDrYCY6PV3WbA/jjH64=";
   };
 
+  patches = [
+    ./cmake4.patch
+  ];
+
   nativeBuildInputs = [
     cmake
     pkg-config
@@ -33,10 +37,6 @@ stdenv.mkDerivation rec {
     libtiff
   ];
 
-  env = lib.optionalAttrs stdenv.hostPlatform.isDarwin {
-    NIX_CFLAGS_COMPILE = "-Wno-error=implicit-function-declaration";
-  };
-
   doCheck = true;
 
   outputs = [