From 3e73a7a924937fc6cae409b36da3a60a555cd1a1 Mon Sep 17 00:00:00 2001
From: tensor-tang <tangjian03@baidu.com>
Date: Wed, 20 Jun 2018 16:00:00 +0800
Subject: [PATCH] add usr local lib to dynamic search path

---
 paddle/fluid/platform/dynload/dynamic_loader.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/paddle/fluid/platform/dynload/dynamic_loader.cc b/paddle/fluid/platform/dynload/dynamic_loader.cc
index 34fbccddc2b..7b0adf25ac0 100644
--- a/paddle/fluid/platform/dynload/dynamic_loader.cc
+++ b/paddle/fluid/platform/dynload/dynamic_loader.cc
@@ -78,7 +78,12 @@ static inline void* GetDsoHandleFromDefaultPath(const std::string& dso_path,
   VLOG(3) << "Try to find library: " << dso_path
           << " from default system path.";
   // default search from LD_LIBRARY_PATH/DYLD_LIBRARY_PATH
+  // and /usr/local/lib path
   void* dso_handle = dlopen(dso_path.c_str(), dynload_flags);
+  if (nullptr == dso_handle) {
+    dso_handle =
+        dlopen(join("/usr/local/lib/", dso_path).c_str(), dynload_flags);
+  }
 
 // DYLD_LIBRARY_PATH is disabled after Mac OS 10.11 to
 // bring System Integrity Projection (SIP), if dso_handle
@@ -99,6 +104,10 @@ static inline void* GetDsoHandleFromDefaultPath(const std::string& dso_path,
   }
 #endif
 
+  if (nullptr == dso_handle) {
+    LOG(WARNING) << "Can not find library: " << dso_path
+                 << ". Please try to set add the lib path to LD_LIBRARY_PATH.";
+  }
   return dso_handle;
 }
 
-- 
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