error: "class Db" has no member named "exists" Options

[robzy]

Okay, so I get an error when compiling, and I'm trying to track down the source of the problem (since dependencies on this system are a bit strange). The problem is that I can't seem to find where "class Db" actually originates from. Any suggestions on how I could track it down?

CODE

[root@localhost src]# make -f makefile.unix bitcoind
    g++ -c -O2 -Wno-invalid-offsetof -Wformat -g -D__WXDEBUG__ -D__WXGTK__ -DNOPCH -DFOURWAYSSE2 -DUSE_SSL -I"/usr/local/include/wx-2.9" -I"/usr/local/lib/wx/include/gtk2-unicode-debug-static-2.9" -o obj/nogui/util.o util.cpp
    db.h: In member function âbool CDB::Exists(const K&)â:
    db.h:146: error: âclass Dbâ has no member named âexistsâ
    make: *** [obj/nogui/util.o] Error 1
[root@localhost src]# grep -R "Db" ./ | grep -v "Dbt" | grep -v "Dbc" | grep -v "DbT"
    ./db.cpp:static bool fDbEnvInit = false;
    ./db.cpp:DbEnv dbenv(0);
    ./db.cpp:static map<string, Db*> mapDb;
    ./db.cpp:        if (fDbEnvInit)
    ./db.cpp:            fDbEnvInit = false;
    ./db.cpp:        if (!fDbEnvInit)
    ./db.cpp:            fDbEnvInit = true;
    ./db.cpp:        pdb = mapDb[strFile];
    ./db.cpp:            pdb = new Db(&dbenv, 0);
    ./db.cpp:            mapDb[strFile] = pdb;
    ./db.cpp:void CloseDb(const string& strFile)
    ./db.cpp:        if (mapDb[strFile] != NULL)
    ./db.cpp:            Db* pdb = mapDb[strFile];
    ./db.cpp:            mapDb[strFile] = NULL;
    ./db.cpp:    printf("DBFlush(%s)%s\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " db not started");
    ./db.cpp:    if (!fDbEnvInit)
    ./db.cpp:                CloseDb(strFile);
    ./db.cpp:            fDbEnvInit = false;
    ./db.cpp:                        CloseDb(strFile);
    ./db.cpp:                CloseDb(strFile);
    ./db.h:extern DbEnv dbenv;
    ./db.h:    Db* pdb;
[root@localhost src]#

Thanks,
Rob.

[SledgY]

locate would be a good start. See if the file actually exists somewhere.

Could be you need to install an additional package for "WXWindows"? I assume that is the library you are using.

[robzy]

locate would be a good start. See if the file actually exists somewhere.

Which file?

Could be you need to install an additional package for "WXWindows"? I assume that is the library you are using.

I don't actually have WxWidgets installed, that's why I'm compiling "bitcoind" (as opposed to "bitcoin", which spits out many errors about missing WxWidgets header files) which doesn't require WxWidgets. I see no reason to suspect this compiler error is due to WxWidgets.

Rob

This post has been edited by robzy: Feb 13 2011, 10:25 AM

[robzy]

Okay, something funny was going on with the dependencies. CentOS has a number of older libraries, and it would appear BitCoin didn't like them.

Using these notes as a guide I was able to compile all the required dependancies to their own directory and just point the BitCoin build at them.

Rob.

[nicephotog-jvm.n...]

"class" ... presumably in cpp definitive keyword concievabley but not nescissarilly maybe in the actual DB name as in a school not the programming language.