Index: head/devel/llvm10/files/patch-lib_Support_Unix_Path.inc
===================================================================
--- head/devel/llvm10/files/patch-lib_Support_Unix_Path.inc	(revision 552812)
+++ head/devel/llvm10/files/patch-lib_Support_Unix_Path.inc	(revision 552813)
@@ -1,19 +1,19 @@
 --- lib/Support/Unix/Path.inc.orig	2020-10-19 17:56:15 UTC
 +++ lib/Support/Unix/Path.inc
 @@ -208,14 +208,9 @@ std::string getMainExecutable(const char *argv0, void 
    while (*p++ != 0)
      ;
    // Iterate through auxiliary vectors for AT_EXECPATH.
 -  for (;;) {
 -    switch (*(uintptr_t *)p++) {
 -    case AT_EXECPATH:
 +  for (; (uintptr_t *)p != AT_NULL; p++) {
-+    if (*(uintptr_t *)p++ == AT_EXECPATH);
++    if (*(uintptr_t *)p++ == AT_EXECPATH)
        return *p;
 -    case AT_NULL:
 -      break;
 -    }
 -    p++;
    }
  #endif
    // Fall back to argv[0] if auxiliary vectors are not available.