Date: Wed, 24 Sep 1997 16:56:48 -0700 (PDT)
Message-Id: <199709242356.QAA22556@adit.ap.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
To: "Geoff Weber" <gweber AT tr DOT labrats DOT com>
From: Nate Eldredge <eldredge AT ap DOT net>
Subject: RE:  "Why 'undefined reference' in link?"
Cc: djgpp AT delorie DOT com
Precedence: bulk

At 10:28  9/24/1997 -0500, Geoff Weber wrote:
>I was asked to supply more details on the problem below, so
>here they are:
>
>I am not using RHIDE at this time, I am using an editor called
>"Multi-Edit".  To be honest, I didn't even know what RHIDE was
>until I was asked if I used it or not!  I did check it out though, and
>I may start using it more...but I digress!
>
>I have used the following command lines in an attempt to compile
>just one of the modules with a simple "cout" main (it also declares
>and uses an instance of the class I am compiling, because I read
>in one of the archived mail messages that the compiler might want
>an instance declared):
>
>	gcc -Wall -o mime64.exe mime64.cpp	(didn't expect this to work)
>	gcc -Wall -o mime64.exe mime64.cpp -lgpp	(ditto)
>	gcc -Wall -o mime64.exe mime64.cpp -lgpp -lstdcxx	(SHOULD work)
>	gxx -Wall -o mime64.exe mime64.cpp	(all these should work)
>	gxx -Wall -o mime64.exe mime64.cpp -lgpp
>	gxx -Wall -o mime64.exe mime64.cpp -lgpp -lstdcxx
>
>         /  gcc -Wall -c mime64.cpp
>       <   gcc -Wall -o mime64.exe mime64.o	(tried the libraries above also)
>         \  gxx -Wall -o mime64.exe mime64.o (tried the libraries above also)
>
>Here is the output of the verbose build attempt from RHIDE (couldn't
capture the
>output otherwise - scrolled offscreen)....
>
> Compiling: mime64.cc
> Reading specs from c:/djgpp/lib\specs
> gcc version 2.7.2.1
>  c:/djgpp/bin\cpp.exe -lang-c++ -v -undef -D__GNUC__=2 -D__GNUG__=2
-D__cplusplus -D__GNUC_MINOR__=7 -Dunix -Di386 -DGO32 -DMSDOS -DDJGPP=2
-DDJGPP_MINOR=1 -D__unix__ -D__i386__ -D__GO32__ -D__MSDOS__ -D__DJGPP__=2
-D__DJGPP_MINOR__=1 -D__unix -D__i386
> GNU CPP version 2.7.2.1 (80386, BSD syntax)
> #include "..." search starts here:
> #include <...> search starts here:
>  c:/djgpp/lang/cxx
>  c:/djgpp/include
>  c:/djgpp/contrib/grx20/include
>  /usr/local/lib/g++-include
>  /usr/local/include
>  /usr/local/go32/include
>  /usr/local/lib/gcc-lib/go32/2.7.2.1/include
>  /usr/include
> End of search list.
>  c:/djgpp/bin\cc1plus.exe c:/djgpp/tmp/RHaaaaaa\ccbaaaaa -quiet -dumpbase
mime64.cc -g -Wall -version -o c:/djgpp/tmp/RHaaaaaa\cccaaaaa
> GNU C++ version 2.7.2.1 (80386, BSD syntax) compiled by GNU C version 2.7.2.1
>  c:/djgpp/bin\as.exe -o mime64.o c:/djgpp/tmp/RHaaaaaa\cccaaaaa
> no errors
> Creating: mime64.exe
> Error: mime64.o: In function `mime64::mime64(void)':
> mime64.cc(12) Error: undefined reference to `mime64::encode_string'
> mime64.cc(14) Error: undefined reference to `mime64::encode_string'
> mime64.cc(16) Error: undefined reference to `mime64::encode_string'
> Error: mime64.cc(.text+0xda): undefined reference to `mime64::encode'
> mime64.cc(17) Error: undefined reference to `mime64::decode'
> Error: mime64.cc(.text+0x10d): undefined reference to `mime64::encode_string'
> Error: mime64.o: In function `mime64::Encode64(basic_string<char,
string_char_traits<char> > &)':
> mime64.cc(45) Error: undefined reference to `mime64::encode'
> mime64.cc(51) Error: undefined reference to `mime64::encode'
> mime64.cc(54) Error: undefined reference to `mime64::encode'
> mime64.cc(58) Error: undefined reference to `mime64::encode'
> mime64.cc(59) Error: undefined reference to `mime64::encode'
> Error: mime64.o: In function `mime64::Decode64(basic_string<char,
string_char_traits<char> > &)':
> mime64.cc(94) Error: undefined reference to `mime64::decode'
> Error: mime64.cc(.text+0x505): undefined reference to `mime64::decode'
> Error: mime64.cc(.text+0x534): undefined reference to `mime64::decode'
> Error: mime64.cc(.text+0x563): undefined reference to `mime64::decode'
> mime64.cc(109) Error: undefined reference to `mime64::decode'
> Error: mime64.o(.text+0x61f):mime64.cc: more undefined references to
`mime64::decode' follow
> There were some errors
*Do* you actually define the member functions `mime64::encode',`decode' and
`encode_string'? Apparently you need to.
If this doesn't help, post as little of the source as still causes the errors.

Nate Eldredge
eldredge AT ap DOT net