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POodb/pgsql/version.hxx no such file or directory
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  1. POodb/pgsql/version.hxx no such file or directory
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    copied!<p>I'm trying to learn how to use C++ and ODB following this tutorial:</p> <pre><code>http://www.codesynthesis.com/products/odb/doc/manual.xhtml#2 </code></pre> <p>I've created a Person.hxx file where there is the declaration of class Person as persistent, then I've got thre files Person-odb: .cxx, .hxx, .ixx</p> <p>Now I should compile Person-odb.cxx with </p> <pre><code>g++ -I/usr/lib/odb/i686-linux-gnu/include Person-odb.cxx </code></pre> <p>but it end with:</p> <pre><code>fatal error: odb/pgsql/version.hxx: No such file or directory. compilation terminated. </code></pre> <p>I see that there is a file version.hxx but there's no odb/pgsql directory... what's wrong?</p> <p>this is Person.hxx where I have defined the persistent class Person:</p> <pre><code>#ifndef PERSON_HXX #define PERSON_HXX #include &lt;string&gt; #include &lt;odb/core.hxx&gt; using namespace std; #pragma db object class Person { private: Person() { } friend class odb::access; #pragma db id auto unsigned long id_; std::string email_; std::string first_; std::string last_; unsigned short age_; public: Person(const std::string&amp; first, const std::string&amp; last, unsigned short age); /* getters */ const std::string&amp; first() const; const std::string&amp; last() const; unsigned short age() const; const std::string&amp; email() const; /* setters */ void setAge(unsigned short); void setFirst(const std::string&amp;); void setLast(const std::string&amp;); void setEmail(const std::string&amp;); }; #endif </code></pre> <p>then I must compile Person.hxx with odb compiler:</p> <pre><code>odb -d mysql --generate-query --generate-schema Person.hxx </code></pre> <p>and I get 4 files Person.odb.hxx, .cxx, .sql, .ixx this is driver.cxx where I have the main program which persists objects:</p> <pre><code>#include &lt;memory&gt; #include &lt;iostream&gt; #include &lt;odb/database.hxx&gt; #include &lt;odb/transaction.hxx&gt; #include &lt;odb/mysql/database.hxx&gt; #include "Person.hxx" #include "Person-odb.hxx" using namespace std; using namespace odb; int main(int argc, char* argv[]) { try { auto_ptr&lt;database&gt; db (new odb::mysql::database (argc, argv)); unsigned long marcoID, loryID, lucaID; /*Create some persistent Person objects */ Person marco ("Marco", "Di Nicola", 26); Person luca ("Luca", "La Sala", 22); Person lory ("Lorenzo", "Vinci", 24); transaction t (db-&gt;begin()); marcoID = db-&gt;persist(marco); lucaID = db-&gt;persist(luca); loryID = db-&gt;persist(lory); t.commit(); } catch (const odb::exception&amp; e) { cerr &lt;&lt; e.what() &lt;&lt; endl; return 1; } } </code></pre> <p>and this is the file Person-odb.hxx</p> <pre><code>// This file was generated by ODB, object-relational mapping (ORM) // compiler for C++. // #ifndef PERSON_ODB_HXX #define PERSON_ODB_HXX #include &lt;odb/version.hxx&gt; #if (ODB_VERSION != 20200UL) #error ODB runtime version mismatch #endif #include &lt;odb/pre.hxx&gt; #include "Person.hxx" #include &lt;memory&gt; #include &lt;cstddef&gt; #include &lt;odb/core.hxx&gt; #include &lt;odb/traits.hxx&gt; #include &lt;odb/callback.hxx&gt; #include &lt;odb/wrapper-traits.hxx&gt; #include &lt;odb/pointer-traits.hxx&gt; #include &lt;odb/container-traits.hxx&gt; #include &lt;odb/no-op-cache-traits.hxx&gt; #include &lt;odb/result.hxx&gt; #include &lt;odb/simple-object-result.hxx&gt; #include &lt;odb/details/unused.hxx&gt; #include &lt;odb/details/shared-ptr.hxx&gt; namespace odb { // Person template &lt;&gt; struct class_traits&lt; ::Person &gt; { static const class_kind kind = class_object; }; template &lt;&gt; class access::object_traits&lt; ::Person &gt; { ... #include "Person-odb.ixx" #include &lt;odb/post.hxx&gt; #endif // PERSON_ODB_HXX </code></pre> <p>everything seems to work fine when I perform:</p> <pre><code>c++ -c Person-odb.cxx c++ -c driver.cxx </code></pre> <p>but in the end when I have to link all together with:</p> <pre><code>c++ -o driver driver.o Person-odb.o -lodb-mysql -lodb </code></pre> <p>I get:</p> <p>"undefined reference to `Person::Person(std::basic_string, std::allocator > const&amp;, std::basic_string, std::allocator > const&amp;, unsigned short)'"</p>
 

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