1From 4046e0ac8ed93354c01de5f3b5cae790cce70404 Mon Sep 17 00:00:00 2001
2From: Will Dietz <w@wdtz.org>
3Date: Thu, 29 Mar 2018 07:21:02 -0500
4Subject: [PATCH] Explicitly search LIBGL_PATH as fallback, if defined.
5
6---
7 src/dispatch_common.c | 12 ++++++++++++
8 1 file changed, 12 insertions(+)
9
10diff --git a/src/dispatch_common.c b/src/dispatch_common.c
11index bc2fb94..776237b 100644
12--- a/src/dispatch_common.c
13+++ b/src/dispatch_common.c
14@@ -306,6 +306,18 @@ get_dlopen_handle(void **handle, const char *lib_name, bool exit_on_fail)
15 pthread_mutex_lock(&api.mutex);
16 if (!*handle) {
17 *handle = dlopen(lib_name, RTLD_LAZY | RTLD_LOCAL);
18+#ifdef LIBGL_PATH
19+ if (!*handle) {
20+ char pathbuf[sizeof(LIBGL_PATH) + 1 + 1024 + 1];
21+ int l = snprintf(pathbuf, sizeof(pathbuf), "%s/%s", LIBGL_PATH, lib_name);
22+ if (l < 0 || l >= sizeof(pathbuf)) {
23+ // This really shouldn't happen
24+ fprintf(stderr, "Error prefixing library pathname\n");
25+ exit(1);
26+ }
27+ *handle = dlopen(pathbuf, RTLD_LAZY | RTLD_LOCAL);
28+ }
29+#endif
30 if (!*handle) {
31 if (exit_on_fail) {
32 fprintf(stderr, "Couldn't open %s: %s\n", lib_name, dlerror());
33--
342.16.3
35