From 54df2afaa61c6a03cbb4a33c9b90fa572b6d07b8 Mon Sep 17 00:00:00 2001
From: Jesse Morgan <jesse@jesterpm.net>
Date: Sat, 17 Dec 2016 21:28:53 -0800
Subject: Berkeley DB 4.8 with rust build script for linux.

---
 db-4.8.30/dist/aclocal/tls.m4 | 65 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 db-4.8.30/dist/aclocal/tls.m4

(limited to 'db-4.8.30/dist/aclocal/tls.m4')

diff --git a/db-4.8.30/dist/aclocal/tls.m4 b/db-4.8.30/dist/aclocal/tls.m4
new file mode 100644
index 0000000..52d232b
--- /dev/null
+++ b/db-4.8.30/dist/aclocal/tls.m4
@@ -0,0 +1,65 @@
+# Check for thread local storage support.
+# Required when building with DB STL support.
+# Based in part on: http://autoconf-archive.cryp.to/ax_tls.html
+# by Alan Woodland <ajw05@aber.ac.uk>  
+
+AC_DEFUN([AX_TLS], [
+  AC_MSG_CHECKING(for thread local storage (TLS) class)
+  AC_SUBST(TLS_decl)
+  AC_SUBST(TLS_defn)
+  ac_cv_tls=none
+  AC_LANG_SAVE
+  AC_LANG_CPLUSPLUS
+  ax_tls_keywords="__thread __declspec(thread) __declspec(__thread)"
+  for ax_tls_decl_keyword in $ax_tls_keywords ""; do
+      for ax_tls_defn_keyword in $ax_tls_keywords ""; do
+          test -z "$ax_tls_decl_keyword" &&
+              test -z "$ax_tls_defn_keyword" && continue
+          AC_TRY_COMPILE([template <typename T>class TLSClass {
+              public: static ] $ax_tls_decl_keyword [ T *tlsvar;
+              };
+              class TLSClass2 {
+              public: static ] $ax_tls_decl_keyword [int tlsvar;
+              };
+              template<typename T> ] $ax_tls_defn_keyword [ T* TLSClass<T>::tlsvar = NULL;]
+              $ax_tls_defn_keyword [int TLSClass2::tlsvar = 1; 
+              static $ax_tls_decl_keyword int x = 0;],
+              [TLSClass<int>::tlsvar = NULL; TLSClass2::tlsvar = 1;],
+              [ac_cv_tls=modifier ; break])
+      done
+      test "$ac_cv_tls" = none || break
+  done
+  AC_LANG_RESTORE
+  if test "$ac_cv_tls" = "none" ; then
+      AC_TRY_COMPILE(
+        [#include <stdlib.h>
+         #include <pthread.h>
+
+         static pthread_once_t once_control_ = PTHREAD_ONCE_INIT;
+         static pthread_key_t key;
+
+         static void init_once(void) {
+             pthread_key_create(&key, NULL);
+         }
+         static void *get_tls() {
+             return (void *)pthread_getspecific(&key);
+         }
+         static void set_tls(void *p) {
+              pthread_setspecific(&key, p);
+         }], [],
+         [ac_cv_tls=pthread])
+  fi
+
+  case "$ac_cv_tls" in
+  none) break ;;
+  pthread)
+      TLS_decl="#define	HAVE_PTHREAD_TLS"
+      TLS_defn="" ;;
+  modifier)
+      TLS_decl="#define	TLS_DECL_MODIFIER	$ax_tls_decl_keyword"
+      TLS_defn="#define	TLS_DEFN_MODIFIER	$ax_tls_defn_keyword" ;;
+  esac
+
+  AC_MSG_RESULT([$ac_cv_tls])
+])
+
-- 
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