Date:	Mon, 02 Oct 1995 07:40:47 -0500
To:	djgpp AT sun DOT soe DOT clarkson DOT edu
From:	car AT wwa DOT com (Chris A. Rodgers)
Subject:	can't compile c++

Hi all!  In short, I installed djgpp and it compiled hello.c from the
samples directory just fine, but when I try a simple c++ program, I get
the following error:

myfirst.cc(.text+0x2e): undefined reference to `cout'
myfirst.cc(.text+0x33): undefined reference to `ostream::operator<<(char const *
)'
myfirst.cc(.text+0x40): undefined reference to `cout'
myfirst.cc(.text+0x45): undefined reference to `ostream::operator<<(char const *
)'

I am running djgpp 1.12maint3.  I am using a 486dx33, 8MB RAM, Win95,
MS-DOS window (command line).

In long,
I unzipped the following files in the E:\DJGPP directory:

BCCGRX12.ZIP	BNU252BN.ZIP	BNU252DC.ZIP	BNU252S1.ZIP	BNU252S2.ZIP
BNU252S3.ZIP	BNU252S4.ZIP	BSN122BN.ZIP	BSN122DC.ZIP	BSN122SR.ZIP
CBGRD103.ZIP	CBGRF103.ZIP	CBGRX103.ZIP	DIF26BN.ZIP 	DIF26DC.ZIP 
DIF26SR.ZIP 	DJDEV112.ZIP	DJDOC112.ZIP	DJEMU112.ZIP	DJEOE112.ZIP
DJLGR112.ZIP	DJLSR112.ZIP	DJSRC112.ZIP	DJTST112.ZIP	FAQ102.ZIP  
FLX247BN.ZIP	FLX247DC.ZIP	FLX247SR.ZIP	GCC263BN.ZIP	GCC263DC.ZIP
GCC263RM.ZIP	GCC263S1.ZIP	GCC263S2.ZIP	GCC263S3.ZIP	GCC263S4.ZIP
GCC263S5.ZIP	GCC263S6.ZIP	GDB412BN.ZIP	GDB412DC.ZIP	GDB412S1.ZIP
GDB412S2.ZIP	GDB412S3.ZIP	GDB412S4.ZIP	GPP263.ZIP  	GRX103M1.ZIP
GZP124BN.ZIP	GZP124DC.ZIP	GZP124SR.ZIP	LDBG102.ZIP 	LDBG102D.ZIP
LGP262BN.ZIP	LGP262DC.ZIP	LGP262SR.ZIP	MAK371BN.ZIP	MAK371DC.ZIP
MAK371SR.ZIP	PAT21BN.ZIP 	PAT21DC.ZIP 	PAT21SR.ZIP 	PDC22BN.ZIP 
SED118BN.ZIP	SED118SR.ZIP	TXI310BN.ZIP	TXI310DC.ZIP	TXI310SR.ZIP
WMEMU112.ZIP

I added E:\DJGPP\BIN to my path, added the SET DJGPP=E:\DJGPP\DJGPP.ENV
variable setting to autoexec.bat, and ensured that the FILES and SHELL
settings in config.sys were sufficient.  I then rebooted.

I ran go32 and it was version 1.12, so I applied all 4 maintenance 
release patches:

DJ112M1.ZIP 	DJ112M2.ZIP 	DJ112M3.ZIP 	DJ112M4.ZIP 

Running each patch batch file was successful, and go32 went from 
version 1.12 to 1.12 patch level 3.

Since patch level 1 was supposed to change bnu24bn.zip, lgp260bn.zip,
and lgp260dc.zip, and I started with versions higher, I reunzipped
(overwriting) the following:

BNU252BN.ZIP	BNU252DC.ZIP	BNU252S1.ZIP	BNU252S2.ZIP	BNU252S3.ZIP
BNU252S4.ZIP	LGP262BN.ZIP	LGP262DC.ZIP	LGP262SR.ZIP

I ran the batch program E:\DJGPP\SAMPLES\HELLO\TRYIT.BAT and the hello.c
code compiled without any problems and produced the following output:

  go32 version 1.12.maint3 Copyright (C) 1994 DJ Delorie
  Hello!  This is the test program.

(this only contains c syntax, not c++ syntax)

I tried to compile the following source code (myfirst.cpp):

// myfirst.cpp--displays a message
#include <iostream.h>	// a PREPROCESSOR directive
int main(void)
{
	cout << "Come up and C++ me some time.";
	cout << "\n";
	return 0;
}

This is the result of compilation:

E:\DJGPP\SRC\cis_230\testbed1>gcc -v myfirst.cpp
Reading specs from e:/djgpp/lib\specs
gcc version 2.6.3
 e:/djgpp/bin\cpp.exe -lang-c++ -v -undef -D__GNUC__=2 -D__GNUG__=2 -D__cplusplu
s -D__GNUC_MINOR__=6 -Dunix -Di386 -DGO32 -DMSDOS -D__unix__ -D__i386__ -D__GO32
__ -D__MSDOS__ -D__unix -D__i386 -D__GO32 -D__MSDOS myfirst.cpp e:/djgpp/tmp\cc0
08394
GNU CPP version 2.6.3 (80386, BSD syntax)
#include "..." search starts here:
#include <...> search starts here:
 e:/djgpp/cplusinc
 e:/djgpp/include
 /usr/local/lib/g++-include
 /usr/local/include
 /usr/local/go32/include
 /usr/local/lib/gcc-lib/go32/2.6.1/include
 /usr/include
End of search list.
 e:/djgpp/bin\cc1plus.exe e:/djgpp/tmp\cc008394 -quiet -dumpbase myfirst.cc -ver
sion -o e:/djgpp/tmp\cca08394
GNU C++ version 2.6.3 (80386, BSD syntax) compiled by GNU C version 2.6.3.
 e:/djgpp/bin\as.exe -o e:/djgpp/tmp\ccb08394 e:/djgpp/tmp\cca08394
 e:/djgpp/bin\ld.exe e:/djgpp/lib\crt0.o -Le:/djgpp/lib e:/djgpp/tmp\ccb08394 -l
gcc -lc -lgcc
myfirst.cc(.text+0x2e): undefined reference to `cout'
myfirst.cc(.text+0x33): undefined reference to `ostream::operator<<(char const *
)'
myfirst.cc(.text+0x40): undefined reference to `cout'
myfirst.cc(.text+0x45): undefined reference to `ostream::operator<<(char const *
)'

Please let me know what I should check or change to get c++ working.

Thanks!
----------------------------------------------------------------------
 _                   _
/ |_ ._ o _   /\    |_) _  _| _  _ ._ _              Software Engineer
\_| ||  |_>  /--\o  | \(_)(_|(_|(/_| _>                    car AT wwa DOT com
                              _|                                      

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