From 1c1ef69326caefcebe1dbbdf0abee78ff97f0386 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Wed, 28 Apr 2021 21:06:41 +0200
Subject: [PATCH] Log when WLR_BACKENDS/WLR_RENDERER is set

Makes it easier to figure out why a backend/renderer is picked.
---
 backend/backend.c     | 3 +++
 render/wlr_renderer.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/backend/backend.c b/backend/backend.c
index c7fa043d..11845437 100644
--- a/backend/backend.c
+++ b/backend/backend.c
@@ -237,6 +237,9 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_display *display) {
 
 	char *names = getenv("WLR_BACKENDS");
 	if (names) {
+		wlr_log(WLR_INFO, "Loading user-specified backends due to WLR_BACKENDS: %s",
+			names);
+
 		names = strdup(names);
 		if (names == NULL) {
 			wlr_log(WLR_ERROR, "allocation failed");
diff --git a/render/wlr_renderer.c b/render/wlr_renderer.c
index a14cb4e4..853acec3 100644
--- a/render/wlr_renderer.c
+++ b/render/wlr_renderer.c
@@ -234,6 +234,9 @@ bool wlr_renderer_init_wl_display(struct wlr_renderer *r,
 struct wlr_renderer *wlr_renderer_autocreate_with_drm_fd(int drm_fd) {
 	const char *name = getenv("WLR_RENDERER");
 	if (name) {
+		wlr_log(WLR_INFO, "Loading user-specified renderer due to WLR_RENDERER: %s",
+			name);
+
 #if WLR_HAS_GLES2_RENDERER
 		if (strcmp(name, "gles2") == 0) {
 			if (drm_fd < 0) {