[boost] regex linking problems- no copy constructor or op= for basic_regex<char> ?

From: Anthony Knittel (anthony_at_[hidden])
Date: 2005-09-01 23:22:51

i've been using the regex library fine to match patterns, but when i 
changed my objects so the regex object is stored instead of initialised 
each time, i get linking problems.  basically it was working fine as:

(simplified code):
bool myclass::myfunction(char* testString) {
    regex mypattern("abcd");
    cmatch result;
    return regex_match(testString, result, mypattern);
}

but when i changed it to store the mypattern object it came up with 
linker problems:

class myclass {
    ...
    regex _mypattern;
}

void myclass::myclass() { _mypattern = regex("abcd"); }
bool myfunction(char* testString) {
    cmatch result;
    return regex_match(testString, result, _mypattern);
}

the complaint seems to be about the copy constructor and op= methods, 
which are supposedly implemented in the boost_regex library.  i'm 
linking using -lboost_regex-mgw (with the library path defined in 
LIBRARY_PATH);

Anthony