From 8505f963a1990566202b0fe60300f89c752ace86 Mon Sep 17 00:00:00 2001
From: eldritch horrors <pennae@lix.systems>
Date: Mon, 4 Mar 2024 06:26:17 +0100
Subject: [PATCH] Merge pull request #9972 from NixOS/allow-unoptimized-builds

Don't hardcode the `-O2` compiler flag

(cherry picked from commit 57ebcadb2f00e69c7548e72cbd63986c4c39bb78)
Change-Id: I49987181b2381627cb1c37b978b94c3163598af2
---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index 75ce7d01d..e070c0d0b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -47,6 +47,10 @@ AC_DEFINE_UNQUOTED(SYSTEM, ["$system"], [platform identifier ('cpu-os')])
 # State should be stored in /nix/var, unless the user overrides it explicitly.
 test "$localstatedir" = '${prefix}/var' && localstatedir=/nix/var
 
+# Assign a default value to C{,XX}FLAGS as the default configure script sets them
+# to -O2 otherwise, which we don't want to have hardcoded
+CFLAGS=${CFLAGS-""}
+CXXFLAGS=${CXXFLAGS-""}
 
 AC_PROG_CC
 AC_PROG_CXX