--- meson.build.orig	2024-10-25 19:42:43 UTC

+++ meson.build

@@ -509,6 +509,8 @@ if not have_mtls_dialect

   # cross-compiling, but because this is just an optimization we can skip it

   if meson.is_cross_build() and not meson.can_run_host_binaries()

     warning('cannot auto-detect -mtls-dialect when cross-compiling, using compiler default')

+  elif host_machine.system() == 'freebsd'

+    c_cpp_args += '-ftls-model=initial-exec'

   else

     # The way to specify the TLSDESC dialect is architecture-specific.

     # We probe both because there is not a fallback guaranteed to work for all

--- src/util/u_thread.h.orig	2024-10-23 20:19:48 UTC

+++ src/util/u_thread.h

@@ -50,7 +50,7 @@

  * but not with __thread

  */

 #define __THREAD_INITIAL_EXEC __thread

-#elif defined(__GLIBC__)

+#elif defined(__FreeBSD__) || defined(__GLIBC__)

 #define __THREAD_INITIAL_EXEC thread_local __attribute__((tls_model("initial-exec")))

 #define REALLY_INITIAL_EXEC

 #else