httplib: added pkgconfig (#452456)

pkgs/by-name/ht/httplib/package.nix

@@ -4,8 +4,9 @@
   fetchFromGitHub,
   openssl,
   stdenv,
+  copyPkgconfigItems,
+  makePkgconfigItem,
 }:
-
 stdenv.mkDerivation (finalAttrs: {
   pname = "httplib";
   version = "0.19.0";
@@ -17,18 +18,36 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-OLwD7mpwqG7BUugUca+CJpPMaabJzUMC0zYzJK9PBCg=";
   };
 
-  nativeBuildInputs = [ cmake ];
+  nativeBuildInputs = [
+    cmake
+    copyPkgconfigItems
+  ];
 
   buildInputs = [ openssl ];
 
   strictDeps = true;
 
+  pkgconfigItems = [
+    (makePkgconfigItem rec {
+      name = "httplib";
+      inherit (finalAttrs) version;
+      cflags = [ "-I${variables.includedir}" ];
+      variables = rec {
+        prefix = placeholder "out";
+        includedir = "${prefix}/include";
+      };
+      inherit (finalAttrs.meta) description;
+    })
+  ];
+
   meta = {
     homepage = "https://github.com/yhirose/cpp-httplib";
     description = "C++ header-only HTTP/HTTPS server and client library";
     changelog = "https://github.com/yhirose/cpp-httplib/releases/tag/${finalAttrs.src.rev}";
     license = lib.licenses.mit;
-    maintainers = [ ];
+    maintainers = with lib.maintainers; [
+      fzakaria
+    ];
     platforms = lib.platforms.all;
   };
 })