--- a/Configurations/10-main.conf	2023-02-04 10:17:52.547616464 -0500
+++ b/Configurations/10-main.conf	2023-02-04 10:21:12.230965087 -0500
@@ -878,10 +878,11 @@ my %targets = (
     },
     "linux-x86_64-clang" => {
         inherit_from     => [ "linux-x86_64" ],
         CC               => "clang",
         CXX              => "clang++",
+        ex_libs          => add(threads("-latomic")),
     },
     "linux-x32" => {
         inherit_from     => [ "linux-generic32" ],
         cflags           => add("-mx32"),
         cxxflags         => add("-mx32"),
@@ -889,10 +890,14 @@ my %targets = (
         bn_ops           => "SIXTY_FOUR_BIT",
         asm_arch         => 'x86_64',
         perlasm_scheme   => "elf32",
         multilib         => "x32",
     },
+    "linux-x32-clang" => {
+        inherit_from     => [ "linux-x32" ],
+        ex_libs          => add(threads("-latomic")),
+    },
 
     "linux-ia64" => {
         inherit_from     => [ "linux-generic64" ],
         bn_ops           => "SIXTY_FOUR_BIT_LONG",
         asm_arch         => 'ia64',