VOCAL 1.5.0 won't compile with gcc 3.4.1

Description:

Opened: 2004-11-17 21:45

---

VOCAL 1.5.0 won't compile with gcc 3.4.1 due to changes in how gcc handles
namespace type limitations.... apparently is stricter now, more in conformance
with standards...  also other problems.
First problem:
util/Timer.h -- added #include <iostream> to make compilation work

Second problem:
util/mstring.hxx -- added string:: prefix to npos for friend declarations using npos

Third problem:  gcc reports:
../build/../util/Fifo.cc:90: error: `myMutex' undeclared (first use this function)
This appears to be some sort of namespacing problems (undoubtedly prefixing
with something:: will fix it) but at this point i'm giving up...

i'm going to try installing an older version of gcc.

Oh yes, what i did to begin with:
wget http://www.vovida.org/downloads/vocal/1.5.0/vocal-1.5.0.tar.gz
cd vocal
make  OPTIMIZE=1 all


-Ted

------- Additional Comment #1 From Sam Jiang 2005-01-12 18:45 -------

The Third Problem is fixed in CVS HEAD version -- prefixing myMutex with this->
to let g++ find members of a dependent base

the following note is from url: http://gcc.gnu.org/gcc-3.4/changes.html#3.4.3

In a template definition, unqualified names will no longer find members of a
dependent base (as specified by [temp.dep]/3 in the C++ standard).
For example,

template <typename T> struct B {
int m;
int n;
int f ();
int g ();
};
int n;
int g ();
template <typename T> struct C : B<T> {
void h ()
{
m = 0; // error
f ();  // error
n = 0; // ::n is modified
g ();  // ::g is called
}
};

You must make the names dependent, e.g. by prefixing them with this->. Here is
the corrected definition of C<T>::h,

template <typename T> void C<T>::h ()
{
this->m = 0;
this->f ();
this->n = 0
this->g ();
}

As an alternative solution, you may use using declarations instead of this->:

template <typename T> struct C : B<T> {
using B<T>::m;
using B<T>::f;
using B<T>::n;
using B<T>::g;
void h ()
{
m = 0;
f ();
n = 0;
g ();
}
};