If we set the DYLD_INSERT_LIBRARIES environment variable when launching debugserver, for use with /usr/lib/libgmalloc.dylib, then make sure we don't pass this environment variable on to any child processes.

llvm-svn: 260284

lldb/tools/debugserver/source/debugserver.cpp

@@ -885,6 +885,10 @@ static struct option g_long_options[] =
 int
 main (int argc, char *argv[])
 {
+    // If debugserver is launched with DYLD_INSERT_LIBRARIES, unset it so we
+    // don't spawn child processes with this enabled.
+    unsetenv("DYLD_INSERT_LIBRARIES");
+
     const char *argv_sub_zero = argv[0]; // save a copy of argv[0] for error reporting post-launch
 
 #if defined (__APPLE__)