Changeset 824

Timestamp:

Nov 18, 2010, 2:14:44 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

README.OS2: Add a note about OpenSSL DLLs neccessary for MySQL and PostgresSQL Qt plugins to work.

File:

• trunk/README.OS2 (modified) (4 diffs)

trunk/README.OS2

@@ -81 +81 @@
 
     Note that you will also need the above OpenSSL libraries and pthread.lib to
-    be able to use this MySQL build.
+    be able to use this MySQL build. The MySQL Qt plugin itself will require
+    OpenSSL DLLs in your LIBPATH at runtime.
 
   - PostgersSQL 9.0.1 or later to support the PostgresSQL Qt plugin. The
@@ -91 +92 @@
 
       http://download.smedley.info/libc064x.zip
+
+    Note that you will also need the above OpenSSL libraries and pthread.lib to
+    be able to use this PostgresSQL build. The PostgresSQL Qt plugin itself will
+    require OpenSSL DLLs in your LIBPATH at runtime.
 
 
@@ -191 +196 @@
       set MYSQL_LIBS=-L<path_to_MySQL>\lib -lmysqlclient_r -L<path_to_OpenSSL>\lib -llibssl -llibcrypto -L<path_to_pthread> -lpthread
 
+    Note that you will also need to place OpenSSL DLLs to BEGINLIBPATH (as
+    described above) because the MySQL plugin links statically to them and Qt
+    will not be able to load it otherwise.
+
   - Unzip the PostgresSQL archive to some directory and set the following
     environment variables to tell the Qt configure script the library location:
@@ -196 +205 @@
       set PSQL_INCLUDEPATH=<path_to_PostgresSQL>\include'
       set PSQL_LIBS=-L<path_to_PostgresSQL>\lib -llibpq -L<path_to_OpenSSL>\lib -llibssl -llibcrypto -L<path_to_pthread> -lpthread
+
+    Note that you will also need to place OpenSSL DLLs to BEGINLIBPATH (as
+    described above) because the PostgresSQL plugin links statically to them and
+    Qt will not be able to load it otherwise.
+
+Note that you need to make sure that OpenSSL DLLs are in BEGINLIBPATH or in
+LIBPATH before Qt attempts to load the SQL plugins for the first time. If it
+fails to load them, it will cache a failure and will not retry even if the
+plugins can be loaded later. To fix that, you need to delete the file
+%HOME%\.config\Trolltech.ini where this cache is stored.