build: Enable thread_local for MinGW-w64 builds

hebasto · hebasto · commit df879e5a9113 · 2024-05-14T17:04:37.000+01:00
The previously mentioned erroneous behavior is not an issue anymore.
diff --git a/configure.ac b/configure.ac
@@ -1042,13 +1042,7 @@ if test "$use_thread_local" = "yes" || test "$use_thread_local" = "auto"; then
     }
     ])],
     [
-     case $host in
-       *mingw*)
-          dnl mingw32's implementation of thread_local has also been shown to behave
-          dnl erroneously under concurrent usage; see:
-          dnl https://gist.github.com/jamesob/fe9a872051a88b2025b1aa37bfa98605
-          AC_MSG_RESULT([no])
-          ;;
+      case $host in
         *freebsd*)
           dnl FreeBSD's implementation of thread_local is also buggy (per
           dnl https://groups.google.com/d/msg/bsdmailinglist/22ncTZAbDp4/Dii_pII5AwAJ)
