From 46b6276124e12d93a4d918621ed30545d70df132 Mon Sep 17 00:00:00 2001
From: Dylan Baker <dylan@pnwbakers.com>
Date: Mon, 9 Sep 2024 10:20:00 -0700
Subject: [PATCH] meson: add support for the GlobalUDLs option

---
 meson.build       | 7 +++++++
 meson_options.txt | 6 ++++++
 2 files changed, 13 insertions(+)

diff --git a/meson.build b/meson.build
index c283e34ab6..bf0be7f81f 100644
--- a/meson.build
+++ b/meson.build
@@ -12,7 +12,13 @@ else
     incdir = 'include'
 endif
 
+cpp_args = [
+    '-DJSON_USE_GLOBAL_UDLS=@0@'.format(
+        (not get_option('GlobalUDLs')).to_int()),
+]
+
 nlohmann_json_dep = declare_dependency(
+    compile_args: cpp_args,
     include_directories: include_directories(incdir)
 )
 meson.override_dependency('nlohmann_json', nlohmann_json_dep)
@@ -26,6 +32,7 @@ if not meson.is_subproject()
 
     pkgc = import('pkgconfig')
     pkgc.generate(name: 'nlohmann_json',
+        extra_cflags: cpp_args,
         version: meson.project_version(),
         description: 'JSON for Modern C++'
     )
diff --git a/meson_options.txt b/meson_options.txt
index 8291c1ac41..347facca3f 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -4,3 +4,9 @@ option(
     value: true,
     description: 'Use non-amalgomated version of the library',
 )
+option(
+    'GlobalUDLs',
+    type: 'boolean',
+    value: true,
+    description: 'Place user-defined string literals in the global namespace',
+)