From 04977998c256466479dcfa66f84396bd007e15a3 Mon Sep 17 00:00:00 2001
From: dragonmux <git@dragonmux.network>
Date: Wed, 29 Nov 2023 01:53:34 +0000
Subject: [PATCH] misc: Implemented an 'all' mode for the Meson build system

---
 include/meson.build   | 14 ++++++++------
 lib/meson.build       |  2 +-
 lib/stm32/meson.build |  8 +++++++-
 meson_options.txt     |  2 ++
 4 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/include/meson.build b/include/meson.build
index ceaaf976..3ee983c4 100644
--- a/include/meson.build
+++ b/include/meson.build
@@ -34,9 +34,11 @@ target_paths = {
 	'stm32f1': 'stm32/f1'
 }
 
-target_path = target_paths[target_platform]
-subdir(f'libopencm3/@target_path@')
-
-target_vector_nvic = declare_dependency(
-	sources: target_nvic_header,
-)
+if target_platform != 'all'
+	target_path = target_paths[target_platform]
+	subdir(f'libopencm3/@target_path@')
+else
+	foreach target_name, target_path : target_paths
+		subdir(f'libopencm3/@target_path@')
+	endforeach
+endif
diff --git a/lib/meson.build b/lib/meson.build
index 3d28f47d..098ae129 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -36,6 +36,6 @@ subdir('cm3')
 locm3_ld_script_path = meson.current_source_dir()
 
 # Now take the platform target and map it to a suitable target family
-if target_platform.startswith('stm32')
+if target_platform.startswith('stm32') or target_platform == 'all'
 	subdir('stm32')
 endif
diff --git a/lib/stm32/meson.build b/lib/stm32/meson.build
index 44eaacbd..13ea5b3a 100644
--- a/lib/stm32/meson.build
+++ b/lib/stm32/meson.build
@@ -52,4 +52,10 @@ subdirs = {
 }
 
 # Bring in the proper target subdir for the requested target platform
-subdir(subdirs[target_platform])
+if target_platform != 'all'
+	subdir(subdirs[target_platform])
+else
+	foreach subdir_name, subdir_path : subdirs
+		subdir(subdir_path)
+	endforeach
+endif
diff --git a/meson_options.txt b/meson_options.txt
index 5d6c0ee7..ec62a908 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -2,7 +2,9 @@ option(
 	'target',
 	type: 'combo',
 	choices: [
+		'all',
 		'stm32f1'
 	],
+	value: 'all',
 	description: 'The hardware platform you wish to target'
 )