I recently installed gcc from cvs, since I understand people have had success with it,
pretty much
out of the box. I'm getting link errors compiling trival C++ programs, with both my
local g++ and
the Cygwin standard g++. I can overcome these errors if I explicitly link the right
copy of
libstdc++.a into the application, as demonstrated in the examples below.
Can gcc 2.95 and gcc 3.x not coexist? I'm guessing it's either that or I installed gcc
incorrectly
somehow, but I'm not sure where I went wrong. Any help or direction would be
appreciated.
Christopher
Examples (cygcheck output is at the bottom, if it helps):
$ cat foo.cc
#include <iostream>
int
main()
std::cout << "Hello, world!\n";
return 0;
$ uname -a
CYGWIN_NT-5.0 CCURRIE 1.3.10(0.51/3/2) 2002-02-25 11:14 i686 unknown
$ g++-3.1 -v
Reading specs from /usr/local/lib/gcc-lib/i686-pc-cygwin/3.1/specs
Configured with: /usr/src/gcc-3_1/configure --disable-nls --disable-shared --ena
ble-static --enable-cstdio=stdio --with-system-zlib --enable-languages=c,c++ --e
nable-threads=win32 --program-suffix=-3.1
Thread model: win32
gcc version 3.1 20020316 (prerelease)
$ g++-3.1 -o foo foo.cc
/tmp/ccZLqlSf.o(.text+0x31):foo.cc: undefined reference to `std::cout'
/tmp/ccZLqlSf.o(.text+0x3e):foo.cc: undefined reference to `std::basic_ostream<c
har, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::ba
sic_ostream<char, std::char_traits<char> >&, char const*)'
/tmp/ccZLqlSf.o(.text+0x67):foo.cc: undefined reference to `std::ios_base::Init:
:Init[in-charge]()'
/tmp/ccZLqlSf.o(.text+0x82):foo.cc: undefined reference to `std::ios_base::Init:
:~Init [in-charge]()'
/tmp/ccZLqlSf.o(.eh_frame+0x11):foo.cc: undefined reference to `___gxx_personali
ty_v0'
collect2: ld returned 1 exit status
$ g++-3.1 -o foo foo.cc /usr/local/lib/libstdc++.a
$ ./foo
Hello, world!
$ g++ -o foo foo.cc
/tmp/ccf7Qhwz.o(.text+0x24):foo.cc: undefined reference to `cout'
/tmp/ccf7Qhwz.o(.text+0x29):foo.cc: undefined reference to `ostream::operator<<(
char const *)'
collect2: ld returned 1 exit status
$ g++ -o foo foo.cc /usr/lib/libstdc++.a
$ ./foo
Hello, world!
$ cygcheck.exe -s -v -r
Cygwin Win95/NT Configuration Diagnostics
Current System Time: Sun Mar 17 23:32:51 2002
Windows 2000 Professional Ver 5.0 Build 2195 Service Pack 2
Path: C:\cygwin\usr\local\bin
C:\cygwin\bin
C:\cygwin\bin
c:\WINNT\system32
c:\WINNT
c:\WINNT\System32\Wbem
SysDir: C:\WINNT\System32
WinDir: C:\WINNT
HOME = `C:\cygwin\home\ccurrie'
MAKE_MODE = `unix'
PWD = `/home/ccurrie/src/test'
USER = `ccurrie'
ALLUSERSPROFILE = `C:\Documents and Settings\All Users'
APPDATA = `C:\Documents and Settings\ccurrie\Application Data'
COMMONPROGRAMFILES = `C:\Program Files\Common Files'
COMPUTERNAME = `CCURRIE'
COMSPEC = `C:\WINNT\system32\cmd.exe'
HOMEDRIVE = `C:'
HOMEPATH = `\'
LOGONSERVER = `\\CCURRIE'
MANPATH = `:/usr/ssl/man'
NUMBER_OF_PROCESSORS = `1'
OLDPWD = `/home/ccurrie/src'
OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
OS = `Windows_NT'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
PROCESSOR_ARCHITECTURE = `x86'
PROCESSOR_IDENTIFIER = `x86 Family 6 Model 8 Stepping 3, GenuineIntel'
PROCESSOR_LEVEL = `6'
PROCESSOR_REVISION = `0803'
PROGRAMFILES = `C:\Program Files'
PROMPT = `$P$G'
PS1 = `\[\033]0;\w\007
\033[32m\]\u@\h \[\033[33m\w\033[0m\]
$ '
SHLVL = `1'
SYSTEMDRIVE = `C:'
SYSTEMROOT = `C:\WINNT'
TEMP = `c:\DOCUME~1\ccurrie\LOCALS~1\Temp'
TERM = `cygwin'
TMP = `C:\cygwin\tmp'
USERDOMAIN = `CCURRIE'
USERNAME = `ccurrie'
USERPROFILE = `C:\Documents and Settings\ccurrie'
WINDIR = `C:\WINNT'
_ = `/usr/bin/cygcheck.exe'
HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
(default) = `/cygdrive'
cygdrive flags = 0x00000022
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
(default) = `C:/cygwin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = `C:/cygwin/bin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = `C:/cygwin/lib'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options
c: hd NTFS 11507Mb 35% CP CS UN PA FC
. /cygdrive user binmode,noumount
C:/cygwin / system binmode
C:/cygwin/bin /usr/bin system binmode
C:/cygwin/lib /usr/lib system binmode
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cpp.exe
Found: C:\cygwin\bin\find.exe
Found: C:\cygwin\bin\gcc.exe
Found: C:\cygwin\bin\gdb.exe
Found: C:\cygwin\bin\ld.exe
Found: C:\cygwin\bin\ls.exe
Found: C:\cygwin\bin\make.exe
Found: C:\cygwin\bin\sh.exe
56k 2000/12/03 C:\cygwin\bin\cygbz21.0.dll - os=4.0 img=1.0 sys=4.0
"cygbz21.0.dll" v0.0 ts=2000/11/20 18:53
621k 2002/01/16 C:\cygwin\bin\cygcrypto.dll - os=4.0 img=1.0 sys=4.0
"cygcrypto.dll" v0.0 ts=2002/1/16 4:54
45k 2001/04/25 C:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
"cygform5.dll" v0.0 ts=2001/4/25 1:28
35k 2002/01/09 C:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
"cygform6.dll" v0.0 ts=2002/1/9 1:03
19k 2002/02/20 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2002/2/19 22:05
17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2001/1/6 23:34
20k 2002/01/13 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
"cyghistory5.dll" v0.0 ts=2002/1/12 20:27
22k 2001/12/13 C:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
"cygintl-1.dll" v0.0 ts=2001/12/13 4:28
21k 2001/06/20 C:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
"cygintl.dll" v0.0 ts=2001/6/20 13:09
81k 2001/10/20 C:\cygwin\bin\cygitcl30.dll - os=4.0 img=1.0 sys=4.0
"cygitcl30.dll" v0.0 ts=2001/10/19 20:25
35k 2001/10/20 C:\cygwin\bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0
"cygitk30.dll" v0.0 ts=2001/10/19 20:25
26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
"cygmenu5.dll" v0.0 ts=2001/4/25 1:27
20k 2002/01/09 C:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
"cygmenu6.dll" v0.0 ts=2002/1/9 1:03
156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++5.dll" v0.0 ts=2001/4/25 1:29
175k 2002/01/09 C:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++6.dll" v0.0 ts=2002/1/9 1:03
226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses5.dll" v0.0 ts=2001/4/25 1:17
202k 2002/01/09 C:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses6.dll" v0.0 ts=2002/1/9 1:03
15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
"cygpanel5.dll" v0.0 ts=2001/4/25 1:27
12k 2002/01/09 C:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
"cygpanel6.dll" v0.0 ts=2002/1/9 1:03
40k 2001/11/21 C:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
"cygpcre.dll" v0.0 ts=2001/11/21 17:15
39k 2001/11/21 C:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix.dll" v0.0 ts=2001/11/21 17:15
108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2001/1/6 23:34
121k 2002/01/13 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
"cygreadline5.dll" v0.0 ts=2002/1/12 20:27
156k 2002/01/16 C:\cygwin\bin\cygssl.dll - os=4.0 img=1.0 sys=4.0
"cygssl.dll" v0.0 ts=2002/1/16 4:54
390k 2001/10/20 C:\cygwin\bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0
"cygtcl80.dll" v0.0 ts=2001/10/19 20:24
5k 2001/10/20 C:\cygwin\bin\cygtclpip80.dll - os=4.0 img=1.0 sys=4.0
10k 2001/10/20 C:\cygwin\bin\cygtclreg80.dll - os=4.0 img=1.0 sys=4.0
"cygtclreg80.dll" v0.0 ts=2001/10/19 20:24
623k 2001/10/20 C:\cygwin\bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0
"cygtk80.dll" v0.0 ts=2001/10/19 20:25
50k 2002/03/12 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2002/3/11 23:38
751k 2002/02/25 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2002/2/25 11:14
Cygwin DLL version info:
DLL version: 1.3.10
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 51
Shared data: 3
DLL identifier: cygwin1
Mount registry: 2
Cygnus registry name: Cygnus Solutions
Cygwin registry name: Cygwin
Program options name: Program Options
Cygwin mount registry name: mounts v2
Cygdrive flags: cygdrive flags
Cygdrive prefix: cygdrive prefix
Cygdrive default prefix:
Build date: Mon Feb 25 11:14:34 EST 2002
Shared id: cygwin1S3
Cygwin Package Information
Last downloaded files to: C:\Documents and Settings\ccurrie\My Documents\cygwin
Last downloaded files from: http://mirrors.rcn.net/pub/sourceware/cygwin
Package Version
ash 20020131-1
autoconf 2.52c-1
autoconf-devel 2.52-4
autoconf-stable 2.13-4
automake 1.6a-1
automake-devel 1.5-5
automake-stable 1.4p5-5
bash 2.05a-3
binutils 20011002-1
bison 1.33-1
bzip2 1.0.1-6
crypt 1.0-1
cvs 1.11.0-1
cygwin 1.3.10-1
diff 0.0
fileutils 4.1-1
findutils 4.1
flex 2.5.4-1
gawk 3.0.4-1
gcc 2.95.3-5
gdb 20010428-3
gdbm 1.8.0-4
grep 2.5g
groff 1.17.2-1
gzip 1.3.2-1
less 358-3
libintl 0.10.38-3
libintl1 0.10.40-1
libncurses5 5.2-1
libncurses6 5.2-8
libreadline4 4.1-2
libreadline5 4.2a-1
login 1.4-3
m4 0.0
make 3.79.1-5
man 1.5g-2
mktemp 1.4-1
ncftp 3.1.2-1
ncurses 5.2-8
newlib-man 20001118-1
openssh 3.1p1-1
openssl 0.9.6c-3
pcre 3.7-1
perl 5.6.1-2
readline 4.2a-1
sed 3.02-1
sh-utils 2.0-2
tar 1.13.19-1
termcap 20010825-1
terminfo 5.2-1
texinfo 4.0-5
textutils 2.0.21-1
vim 6.0.93-1
w32api 1.2-1
which 1.5-1
zlib 1.1.4-1
Use -h to see help about each section
-------------------------------------------------------
With reasonable men I will reason;
with humane men I will plead;
but to tyrants I will give no quarter.
-- William Lloyd Garrison
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