From 914f4e549a2ab540d8449e45f2dd8958e4ef46f2 Mon Sep 17 00:00:00 2001
From: emaryn <emaryn@users.noreply.github.com>
Date: Sun, 9 Feb 2025 23:03:58 +0800
Subject: [PATCH] wcslib: fix noBrokenSymlinks

---
 pkgs/by-name/wc/wcslib/package.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pkgs/by-name/wc/wcslib/package.nix b/pkgs/by-name/wc/wcslib/package.nix
index 95bb428218ca..d4f7dafa7bcf 100644
--- a/pkgs/by-name/wc/wcslib/package.nix
+++ b/pkgs/by-name/wc/wcslib/package.nix
@@ -23,6 +23,15 @@ stdenv.mkDerivation rec {
     "man"
   ];
 
+  # DOCDIR is set to the path $out/share/doc/wcslib, and DOCLINK points
+  # to the same location.
+  # `$(LN_S) $(notdir $(DOCDIR)) $(DOCLINK)` effectively running:
+  # `ln -s wcslib $out/share/doc/wcslib`
+  # This produces a broken link because the target location already exists
+  postInstall = ''
+    rm $out/share/doc/wcslib/wcslib
+  '';
+
   meta = {
     homepage = "https://www.atnf.csiro.au/people/mcalabre/WCS/";
     description = "World Coordinate System library for astronomy";