From 6a94af558bb30ca1494c19be46414f5549b6ace6 Mon Sep 17 00:00:00 2001
From: luhuaei <luhuaei@gmail.com>
Date: Tue, 10 Aug 2021 23:05:35 +0800
Subject: [PATCH] pymupdf: fix version incorrect cause build error

---
 .../python-modules/pymupdf/default.nix          |  6 +-----
 .../python-modules/pymupdf/nix-support.patch    | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 5 deletions(-)
 create mode 100644 pkgs/development/python-modules/pymupdf/nix-support.patch

diff --git a/pkgs/development/python-modules/pymupdf/default.nix b/pkgs/development/python-modules/pymupdf/default.nix
index ff7b9a464998..e749c467ab19 100644
--- a/pkgs/development/python-modules/pymupdf/default.nix
+++ b/pkgs/development/python-modules/pymupdf/default.nix
@@ -1,7 +1,6 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, fetchpatch
 , mupdf
 , swig
 , freetype
@@ -26,10 +25,7 @@ buildPythonPackage rec {
   patches = [
     # Add NIX environment support.
     # Should be removed next pyMuPDF release.
-    (fetchpatch {
-      url = "https://github.com/pymupdf/PyMuPDF/commit/d9b2d42019e5705a1c6621ea0cdfa26da1ce9ad5.patch";
-      sha256 = "fc3f6ad88c8f3933ed9ab9d4db9ebec8bc30ed5113f6ca9d72080b56dfa52ad6";
-    })
+    ./nix-support.patch
   ];
 
   postPatch = ''
diff --git a/pkgs/development/python-modules/pymupdf/nix-support.patch b/pkgs/development/python-modules/pymupdf/nix-support.patch
new file mode 100644
index 000000000000..e0a14337a8d9
--- /dev/null
+++ b/pkgs/development/python-modules/pymupdf/nix-support.patch
@@ -0,0 +1,17 @@
+--- a/setup.py
++++ b/setup.py
+@@ -36,10 +36,14 @@ LIBRARIES = {
+     "opensuse": OPENSUSE,
+     "fedora": FEDORA,
+     "alpine": ALPINE,
++    "nix": FEDORA,
+ }
+ 
+ 
+ def load_libraries():
++    if os.getenv("NIX_STORE"):
++        return LIBRARIES["nix"]
++
+     try:
+         import distro
+