From 3170d8608db5ce30a7ea6a439bb99227b0779a5f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Tue, 19 Sep 2017 11:54:40 +0100
Subject: [PATCH] gdbm: add symlinks for compatibility

some tools check this location to distinguish between gdbm and ndbm
---
 pkgs/development/libraries/gdbm/default.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/pkgs/development/libraries/gdbm/default.nix b/pkgs/development/libraries/gdbm/default.nix
index 86d9bd649881..c6313dec90ce 100644
--- a/pkgs/development/libraries/gdbm/default.nix
+++ b/pkgs/development/libraries/gdbm/default.nix
@@ -25,6 +25,17 @@ stdenv.mkDerivation rec {
   '';
   configureFlags = [ "--enable-libgdbm-compat" ];
 
+  postInstall = ''
+    # create symlinks for compatibility
+    install -dm755 $out/include/gdbm
+    (
+      cd $out/include/gdbm
+      ln -s ../gdbm.h gdbm.h
+      ln -s ../ndbm.h ndbm.h
+      ln -s ../dbm.h  dbm.h
+    )
+  '';
+
   meta = with lib; {
     description = "GNU dbm key/value database library";