Date: 27 May 1996 11:38:00 +0200
From: kl AT kl DOT in-berlin DOT de (Kaspar Landsberg)
To: djgpp AT delorie DOT COM
Message-ID: <69gjJ0Y$hjB@kl.in-berlin.de>
Subject: gcc cannot link C++ programs w/o errors
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Hi all,

i'm not able to {compile,link} any C++ program. It seems that DJGPP is  
missing something... here's what i get..

1. gcc -lgpp -v -o prog prog.cc

Reading specs from d:/lang/djgpp/lib\specs
gcc version 2.7.2
 d:/lang/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=0 -D__unix__ -D__i386__ -D__GO32__ -D__MSDOS__ -D__DJGPP__=2 -D__DJGPP_MINOR__=0 -D__unix -D__
i386 -D__GO32 -D__MSDOS -D__DJGPP=2 -D__DJGPP_MINOR=0 cpoint.cc d:/lang/djgpp/tmp\ccbaaaaa
GNU CPP version 2.7.2 (80386, BSD syntax)
#include "..." search starts here:
#include <...> search starts here:
 d:/lang/djgpp/lang/cxx
 d:/lang/djgpp/include
 d:/lang/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/include
 /usr/include
End of search list.
 d:/lang/djgpp/bin\cc1plus.exe d:/lang/djgpp/tmp\ccbaaaaa -fno-strength-reduce -fno-strength-reduce -quiet -dumpbase cpoint.cc -version -o d:/lang/djgpp/tmp\cccaaaaa
GNU C++ version 2.7.2 (80386, BSD syntax) compiled by GNU C version 2.7.2.
 d:/lang/djgpp/bin\as.exe -o d:/lang/djgpp/tmp\ccdaaaaa d:/lang/djgpp/tmp\cccaaaaa
 d:/lang/djgpp/bin\ld.exe -o cpoint d:/lang/djgpp/lib\crt0.o -Ld:/lang/djgpp/lib d:/lang/djgpp/tmp\ccdaaaaa -Tdjgpp.lnk -lgcc -lc -lgcc
cpoint.cc(.text+0x37): undefined reference to `ifstream::ifstream(int, char const *, int, int)'
cpoint.cc(.text+0x54): undefined reference to `ofstream::ofstream(int, char const *, int, int)'
cpoint.cc(.text+0x6e): undefined reference to `istream::getline(char *, int, char)'
cpoint.cc(.text+0x7d): undefined reference to `ios::operator void *(void) const'
cpoint.cc(.text+0xd3): undefined reference to `ostream::write(char const *, int)'
cpoint.cc(.text+0xe9): undefined reference to `fstreambase::close(void)'
cpoint.cc(.text+0xf8): undefined reference to `fstreambase::close(void)'

2. set >> file

TMP=C:\WINDOWS\TEMP
winbootdir=C:\WINDOWS
COMSPEC=\COMMAND.COM
SOUND=C:\SB16
MIDI=SYNTH:1 MAP:E
DIRCMD=/P /O:GNE
TEMP=C:\TMP
MSINPUT=C:\MSINPUT
CLASSPATH=D:\LANG\JAVA\LIB\CLASSES.ZIP;.
DJGPP=D:\LANG\DJGPP\DJGPP.ENV
PGPPATH=D:\INTERNET\PGP\263I
GO32=driver D:\LANG\DJGPP\DRIVERS\VGA.GRD
PATH=C:\WINDOWS;C:\WINDOWS\COMMAND;C:\DOS;D:\INTERNET\PGP\263I;D:\LANG\DJGPP\BIN;D:\INTERNET\XP;D:\LANG\TP7\BIN
PROMPT=[$p]  $h
TZ=CET
WINPMT=$p$g
windir=C:\WINDOWS
BLASTER=A220 I5 D1 H5 P330 T6
CMDLINE=gcc -v -o cpoint cpoint.cc

3. go32-v2

go32/v2 version 2.0 built Jan 23 1996 22:03:02
Usage: go32 coff-image [args]
Rename this to go32.exe only if you need a go32 that can run v2 binaries as
 well as v1 binaries (old makefiles).  Put ahead of the old go32 in your PATH.
DPMI memory available: 10420 Kb
DPMI swap space available: 6960 Kb

4. the program itself (don't blame me if it's rubbish code :)

/**
 * cpoint.cc v0.3
 * Dieses Programm sucht in der Datei bolzen.pp nach der XP-Versions-
 * angabe. Wenn gefunden (es wird nach der Zeichenfolge "R/C" an 26.-28.
 * Position jeder Zeile gesucht), wird diese "geloescht". -Kasi
 **/

#include <string.h>
#include <fstream.h>

int main(void)
{
        ifstream fin("bolzen.pp", ios::in);  // reading
        ofstream fout("kasi.ver", ios::out);  // writing
        char zeile[81];
        char version[33];

        while (fin.getline(zeile,80)) {
                strncpy(version,zeile,32);
                if ((version[25] != 'R') && (version[26] != '/') \
                  && (version[27] != 'C')) {
                        fout.write(zeile, 80);
                }
        }
        fin.close();
        fout.close();
        return 0;
}


TIA for any help,

Kaspar

PS Please Cc me all replies that go to the list.