From 20392d90caadfa8fd4ff7bcabd488934604b11f2 Mon Sep 17 00:00:00 2001
From: Jacek Galowicz <jacek@galowicz.de>
Date: Wed, 30 Mar 2022 14:41:01 +0200
Subject: [PATCH] rdma-core: Fix pkg-config files

---
 pkgs/os-specific/linux/rdma-core/default.nix       |  6 ++++++
 .../linux/rdma-core/pkg-config-template.patch      | 14 ++++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 pkgs/os-specific/linux/rdma-core/pkg-config-template.patch

diff --git a/pkgs/os-specific/linux/rdma-core/default.nix b/pkgs/os-specific/linux/rdma-core/default.nix
index f7543291deda..60d917e8e622 100644
--- a/pkgs/os-specific/linux/rdma-core/default.nix
+++ b/pkgs/os-specific/linux/rdma-core/default.nix
@@ -23,6 +23,12 @@ stdenv.mkDerivation rec {
     "-DCMAKE_INSTALL_SHAREDSTATEDIR=/var/lib"
   ];
 
+  patches = [
+    # this has been fixed in master. As soon as it gets into a release, this
+    # patch won't apply anymore and can be removed.
+    ./pkg-config-template.patch
+  ];
+
   postPatch = ''
     substituteInPlace srp_daemon/srp_daemon.sh.in \
       --replace /bin/rm rm
diff --git a/pkgs/os-specific/linux/rdma-core/pkg-config-template.patch b/pkgs/os-specific/linux/rdma-core/pkg-config-template.patch
new file mode 100644
index 000000000000..22898bc75282
--- /dev/null
+++ b/pkgs/os-specific/linux/rdma-core/pkg-config-template.patch
@@ -0,0 +1,14 @@
+diff -ru source/buildlib/template.pc.in source-fixed/buildlib/template.pc.in
+--- source/buildlib/template.pc.in	1970-01-01 01:00:01.000000000 +0100
++++ source-fixed/buildlib/template.pc.in	2022-03-30 22:29:12.988625941 +0200
+@@ -1,7 +1,6 @@
+-prefix=@CMAKE_INSTALL_PREFIX@
+-exec_prefix=${prefix}
+-libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
+-includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
++exec_prefix=@CMAKE_INSTALL_PREFIX@
++libdir=@CMAKE_INSTALL_LIBDIR@
++includedir=@CMAKE_INSTALL_INCLUDEDIR@
+ 
+ Name: lib@PC_LIB_NAME@
+ Description: RDMA Core Userspace Library