preload cef library

HtmlFile/HtmlFile.cpp

@@ -391,10 +391,11 @@ int CHtmlFile::Convert(const std::vector<std::wstring>& arFiles, const std::wstr
             nargs[0] = sXmlA.c_str();
             nargs[1] = NULL;
 
-            const char* nenv[3];
+            const char* nenv[4];
             nenv[0] = sLibraryDir.c_str();
-            nenv[1] = "DISPLAY=:0";
-            nenv[2] = NULL;
+            nenv[1] = "LD_PRELOAD=./libcef.so";
+            nenv[2] = "DISPLAY=:0";
+            nenv[3] = NULL;
 
             execve(sProgramm.c_str(),
                    (char * const *)nargs,
@@ -411,10 +412,11 @@ int CHtmlFile::Convert(const std::vector<std::wstring>& arFiles, const std::wstr
             nargs[4] = sXmlA.c_str();
             nargs[5] = NULL;
 
-            const char* nenv[3];
+            const char* nenv[4];
             nenv[0] = sLibraryDir.c_str();
-            nenv[1] = NULL;//"DISPLAY=:99";
-            nenv[2] = NULL;
+            nenv[1] = "LD_PRELOAD=./libcef.so";
+            nenv[2] = NULL;//"DISPLAY=:99";
+            nenv[3] = NULL;
 
             execve("/usr/bin/xvfb-run", (char * const *)nargs, (char * const *)nenv);
             exit(EXIT_SUCCESS);