1 files changed, 91 insertions, 0 deletions
diff --git a/SDL_Core/src/thirdPartyLibs/logger/log4cplus-1.1.0/m4/ax_tls_support.m4 b/SDL_Core/src/thirdPartyLibs/logger/log4cplus-1.1.0/m4/ax_tls_support.m4
new file mode 100644
index 000000000..b410488d7
--- /dev/null
+++ b/SDL_Core/src/thirdPartyLibs/logger/log4cplus-1.1.0/m4/ax_tls_support.m4
@@ -0,0 +1,91 @@
+dnl Check for the __thread/__declspec(thread) construct support.
+
+AC_DEFUN([AX_TLS_SUPPORT],
+[
+AH_TEMPLATE(HAVE_TLS_SUPPORT,
+  [Defined if the compiler understands __thread or __declspec(thread)
+   construct.])
+AH_TEMPLATE(TLS_SUPPORT_CONSTRUCT,
+  [Defined to the actual TLS support construct.])
+
+ax_tls_support=no
+
+AC_CACHE_CHECK([for thread_local], [ac_cv_thread_local],
+[
+  AC_LINK_IFELSE(
+    [AC_LANG_PROGRAM(
+      [[
+      extern thread_local int x;
+      thread_local int * ptr = 0;
+      int foo () { ptr = &x; return x; }
+      thread_local int x = 1;
+      ]],
+      [[x = 2;
+        foo ();]])],
+    [ac_cv__thread_local=yes
+     ax_tls_support=yes],
+    [ac_cv_thread_local=no],
+    [ac_cv_thread_local=no])
+])
+AS_IF([test "x$ac_cv_thread_local" = "xyes"],
+  [AC_DEFINE(HAVE_TLS_SUPPORT, [1])
+   AC_DEFINE(TLS_SUPPORT_CONSTRUCT, [thread_local])])
+
+
+AS_IF([test "x$ax_tls_support" = "xno"], [
+AC_CACHE_CHECK([for __thread], [ac_cv__thread_keyword], [
+  AC_LINK_IFELSE(
+    [AC_LANG_PROGRAM(
+      [[#if defined (__NetBSD__)
+        #include <sys/param.h>
+        #if ! __NetBSD_Prereq__(5,1,0)
+        #error NetBSD __thread support does not work before 5.1.0. It is missing __tls_get_addr.
+        #endif
+        #endif
+
+        extern __thread int x;
+        __thread int * ptr = 0;
+        int foo () { ptr = &x; return x; }
+        __thread int x = 1;
+      ]],
+      [[x = 2;
+        foo ();
+      ]])],
+    [ac_cv__thread_keyword=yes
+     ax_tls_support=yes],
+    [ac_cv__thread_keyword=no],
+    [ac_cv__thread_keyword=no])
+])
+
+AS_IF([test "x$ac_cv__thread_keyword" = "xyes"],
+  [AC_DEFINE(HAVE_TLS_SUPPORT, [1])
+   AC_DEFINE(TLS_SUPPORT_CONSTRUCT, [__thread])])])
+
+
+AS_IF([test "x$ax_tls_support" = "xno"], [
+AC_CACHE_CHECK([for __declspec(thread)], [ac_cv_declspec_thread], [
+  AC_LINK_IFELSE(
+    [AC_LANG_PROGRAM(
+       [[
+#if defined (__GNUC__)
+#  error Please fail.
+And extra please fail.
+#else
+       extern __declspec(thread) int x;
+       __declspec(thread) int * ptr = 0;
+       int foo () { ptr = &x; return x; }
+       __declspec(thread) int x = 1;
+#endif
+       ]],
+       [[x = 2;
+         foo ();]])],
+    [ac_cv_declspec_thread=yes
+     ax_tls_support=yes],
+    [ac_cv_declspec_thread=no],
+    [ac_cv_declspec_thread=no])])
+
+  AS_IF([test "x$ac_cv_declspec_thread" = "xyes"],
+    [AC_DEFINE(HAVE_TLS_SUPPORT, [1])
+     AC_DEFINE(TLS_SUPPORT_CONSTRUCT, [__declspec(thread)])])])
+
+])dnl AX_TLS_SUPPORT