From ccbf6438f1f0d8be4a92fc56ab5f432b13c822ea Mon Sep 17 00:00:00 2001
From: Ben Wolsieffer <benwolsieffer@gmail.com>
Date: Thu, 23 Jun 2022 19:49:53 -0400
Subject: [PATCH] geos: backport patch to fix config paths

Backport an upstream patch to fix the paths in geos-config and geos.pc when
built with absolute CMAKE_INSTALL_*DIR.
---
 pkgs/development/libraries/geos/default.nix | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/pkgs/development/libraries/geos/default.nix b/pkgs/development/libraries/geos/default.nix
index c067a705d0b..32b3155b8c5 100644
--- a/pkgs/development/libraries/geos/default.nix
+++ b/pkgs/development/libraries/geos/default.nix
@@ -1,6 +1,7 @@
 { lib
 , stdenv
 , fetchurl
+, fetchpatch
 , cmake }:
 
 stdenv.mkDerivation rec {
@@ -12,13 +13,15 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-ULvFmaw4a0wrOWLcxBHwBAph8gSq7066ciXs3Qz0VxU=";
   };
 
-  nativeBuildInputs = [ cmake ];
+  patches = [
+    # Fix paths with absolute CMAKE_INSTALL_*DIR
+    (fetchpatch {
+      url = "https://github.com/libgeos/geos/commit/11faa4db672ed61d64fd8a6f1a59114f5b5f2406.patch";
+      hash = "sha256-oAArwGq91Z93C6hBPQD0AlY8Q4Nnn6tA40HUPoZ5ftc=";
+    })
+  ];
 
-  postPatch = ''
-    substituteInPlace tools/geos-config.in \
-      --replace "@libdir@" "@prefix@/lib" \
-      --replace "@includedir@" "@prefix@/include"
-  '';
+  nativeBuildInputs = [ cmake ];
 
   meta = with lib; {
     description = "C++ port of the Java Topology Suite (JTS)";