ITS#8270 win32: fix conversion error with MSVC

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 8f7f3b39b719647d290e90ddb2f86632cb6fef67..901f6c40d3459dfad11e988b0b4650767b092339 100644 (file)
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -210,6 +210,12 @@ union semun {
 #define ESECT
 #endif
 
+#ifdef _MSC_VER
+#define CALL_CONV WINAPI
+#else
+#define CALL_CONV
+#endif
+
 /** @defgroup internal LMDB Internals
  *     @{
  */
@@ -8715,7 +8721,7 @@ typedef struct mdb_copy {
 } mdb_copy;
 
        /** Dedicated writer thread for compacting copy. */
-static THREAD_RET ESECT
+static THREAD_RET ESECT CALL_CONV
 mdb_env_copythr(void *arg)
 {
        mdb_copy *my = arg;