From 4516ba618a3364bd4f769dd81e3a592c4a9c8a51 Mon Sep 17 00:00:00 2001
From: Geraldo Luis da Silva Ribeiro <geraldolsribeiro@gmail.com>
Date: Tue, 26 Apr 2016 20:20:46 -0300
Subject: [PATCH] Port to OSX.

---
 Makefile   |  2 ++
 example.cc |  3 ++-
 lmdb++.h   | 12 +++++++++++-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index a548411..a75452c 100644
--- a/Makefile
+++ b/Makefile
@@ -36,6 +36,7 @@ check: check.o
 	$(CXX) $(LDFLAGS) -o $@ $^ $(LDADD) && ./$@
 
 example: example.o
+	$(MKDIR) env
 	$(CXX) $(LDFLAGS) -o $@ $^ $(LDADD) && ./$@
 
 %.o: %.cc lmdb++.h
@@ -51,6 +52,7 @@ uninstall:
 	$(RM) $(DESTDIR)$(includedir)/lmdb++.h
 
 clean:
+	$(RM) env/*
 	$(RM) README.html README.md check example $(PACKAGE_TARSTRING).tar.* *.o *~
 
 README: README.html README.md
diff --git a/example.cc b/example.cc
index 171f6f8..a0fb3b9 100644
--- a/example.cc
+++ b/example.cc
@@ -8,7 +8,8 @@ int main() {
   /* Create and open the LMDB environment: */
   auto env = lmdb::env::create();
   env.set_mapsize(1UL * 1024UL * 1024UL * 1024UL); /* 1 GiB */
-  env.open("./example.mdb", 0, 0664);
+  //env.open("./example.mdb", 0, 0664);
+  env.open( "./env" );
 
   /* Insert some key/value pairs in a write transaction: */
   auto wtxn = lmdb::txn::begin(env);
diff --git a/lmdb++.h b/lmdb++.h
index ab75f8c..8d51c89 100644
--- a/lmdb++.h
+++ b/lmdb++.h
@@ -20,6 +20,16 @@
 #endif // _MSC_VER check
 #endif
 
+#if HAS_CXX11_THREAD_LOCAL
+    #define ATTRIBUTE_TLS thread_local
+#elif defined (__GNUC__)
+    #define ATTRIBUTE_TLS __thread
+#elif defined (_MSC_VER)
+    #define ATTRIBUTE_TLS __declspec(thread)
+#else // !C++11 && !__GNUC__ && !_MSC_VER
+    #error "Define a thread local storage qualifier for your compiler/platform!"
+#endif
+
 ////////////////////////////////////////////////////////////////////////////////
 
 #include <lmdb.h>      /* for MDB_*, mdb_*() */
@@ -96,7 +106,7 @@ class lmdb::error : public std::runtime_error {
    * Returns the underlying LMDB error code.
    */
   virtual const char* what() const noexcept {
-    static thread_local char buffer[1024];
+    static ATTRIBUTE_TLS char buffer[1024];
     std::snprintf(buffer, sizeof(buffer),
       "%s: %s", origin(), ::mdb_strerror(code()));
     return buffer;