From b63dfb7ad4f0ba701d838ec8cde96c6f0c586f2d Mon Sep 17 00:00:00 2001
From: Nathan van Doorn <nvd1234@gmail.com>
Date: Mon, 5 Jul 2021 19:47:58 +0100
Subject: [PATCH] Rename version to version.txt

<version> is a standard header with C++20 which could cause issues if a library checks it exists then imports it

Because we have the root of this repo in the include path, it'd see that <version> exists (with, e.g., __has_include), and then try to include it as a header

But because it's just a file that says 0.1, this would fail

This happens with libpqxx 7
---
 configure.ac           | 2 +-
 flake.nix              | 2 +-
 version => version.txt | 0
 3 files changed, 2 insertions(+), 2 deletions(-)
 rename version => version.txt (100%)

diff --git a/configure.ac b/configure.ac
index 2fb175c8..9a32651e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([Hydra], [m4_esyscmd([echo -n $(cat ./version)$VERSION_SUFFIX])])
+AC_INIT([Hydra], [m4_esyscmd([echo -n $(cat ./version.txt)$VERSION_SUFFIX])])
 AC_CONFIG_AUX_DIR(config)
 AM_INIT_AUTOMAKE([foreign serial-tests])
 
diff --git a/flake.nix b/flake.nix
index 334119ce..25aaa1aa 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,7 +6,7 @@
   outputs = { self, nixpkgs, nix }:
     let
 
-      version = "${builtins.readFile ./version}.${builtins.substring 0 8 self.lastModifiedDate}.${self.shortRev or "DIRTY"}";
+      version = "${builtins.readFile ./version.txt}.${builtins.substring 0 8 self.lastModifiedDate}.${self.shortRev or "DIRTY"}";
 
       pkgs = import nixpkgs {
         system = "x86_64-linux";
diff --git a/version b/version.txt
similarity index 100%
rename from version
rename to version.txt