From 6bdb5e8e099057822a767cae1f8c2c93152dae3c Mon Sep 17 00:00:00 2001
From: John Ericson <John.Ericson@Obsidian.Systems>
Date: Tue, 2 Sep 2025 10:40:06 -0400
Subject: [PATCH] Fix downstream MinGW build by not looking for Boost Regex

---
 src/libexpr/meson.build  | 5 ++++-
 src/libstore/meson.build | 6 +++++-
 src/libutil/meson.build  | 7 ++++++-
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/libexpr/meson.build b/src/libexpr/meson.build
index 0331d3c61..00fb82e3c 100644
--- a/src/libexpr/meson.build
+++ b/src/libexpr/meson.build
@@ -40,7 +40,10 @@ endforeach
 
 boost = dependency(
   'boost',
-  modules : [ 'container', 'context' ],
+  modules : [
+    'container',
+    'context',
+  ],
   include_type : 'system',
 )
 # boost is a public dependency, but not a pkg-config dependency unfortunately, so we
diff --git a/src/libstore/meson.build b/src/libstore/meson.build
index 2b0106ff3..253152772 100644
--- a/src/libstore/meson.build
+++ b/src/libstore/meson.build
@@ -101,7 +101,11 @@ subdir('nix-meson-build-support/libatomic')
 
 boost = dependency(
   'boost',
-  modules : [ 'container', 'regex' ],
+  modules : [
+    'container',
+    # Shouldn't list, because can header-only, and Meson currently looks for libs
+    #'regex',
+  ],
   include_type : 'system',
 )
 # boost is a public dependency, but not a pkg-config dependency unfortunately, so we
diff --git a/src/libutil/meson.build b/src/libutil/meson.build
index c294f895a..cdffc892a 100644
--- a/src/libutil/meson.build
+++ b/src/libutil/meson.build
@@ -57,7 +57,12 @@ deps_private += blake3
 
 boost = dependency(
   'boost',
-  modules : [ 'context', 'coroutine', 'iostreams', 'url' ],
+  modules : [
+    'context',
+    'coroutine',
+    'iostreams',
+    'url',
+  ],
   include_type : 'system',
   version : '>=1.82.0',
 )