Compiling FAQ
Eggdrop and Tcl compiling errors and resolution
faq
(in other words, maybe this FAQ will help you get Eggdrop compiled).
Suggestions by various contributors. If you think something should be
added, please send an e-mail to
eggheads@eggheads.org
Last revised: March 21 2000
- Undefined references in net.o (Sun OS)
- Compile stops at the last minute with "ld fatal signal 11"! (Linux)
- ld: -ltcl7.4: Expected libx.so(.major.minor.xxx) (various)
- Strip terminated with signal (various)
- 'dir' undeclared (and a whole bunch of others) (AIX 4)
- 'fd_set' undeclared (and a whole bunch of others) (AIX 4)
- Unresolved or undefined symbols: ldclose, ldopen, ldnshread (AIX 3)
- Unsatisfied symbols 'shl_findsym' and 'shl_load' (HP-UX 9)
1. Undefined references in net.o (Sun OS)
Undefined first
symbol referenced
in file
socket net.o
gethostbyname net.o
accept net.o
bind net.o
setsockopt net.o
gethostbyaddr net.o
getsockname net.o
gethostname net.o
listen net.o
connect net.o
ld: fatal: Symbol referencing errors. No output written to eggdrop
This seems to be caused by a few libraries not being detected by the auto-configure program, it is relatively easy to fix. Edit your Makefile, note that yours may be slightly different than this one when it comes to the Tcl library, but here is the way it probably is:
GMAKE = ${MAKE} 'CC=gcc' 'AWK=awk' 'OBJS=${OBJS}' 'TCLLIBFN=tcl.a'\
'CFLAGS=${CFLAGS}' 'XREQ=${XREQ}' 'XLIBS= -L/usr/local/lib -ltcl -lm'\
'TCLLIB=${TCLLIB}' 'RANLIB=:' 'STRIP='
And here is what you need to change:
GMAKE = ${MAKE} 'CC=gcc' 'AWK=awk' 'OBJS=${OBJS}' 'TCLLIBFN=tcl.a'\
'CFLAGS=${CFLAGS}' 'XREQ=${XREQ}' 'XLIBS=-lsocket -ldl -lnsl -L/usr/local/lib -ltcl -lm'\
'TCLLIB=${TCLLIB}' 'RANLIB=:' 'STRIP='
You are adding in three libraries to be linked in, socket, dl, and nsl. This will resolve the net.o errors.
2. Compile stops at the last minute with "ld fatal signal 11"! (Linux)
This seems to be caused by a non-ELF Tcl library binary, and the compiler doesn't seem to like it. The first thing you want to do is download and compile Tcl yourself. And then follow this set of commands to help you reconfigure Eggdrop using the newly compiled Tcl library (all of this should be done from your home directory):
cd
mkdir lib
mkdir include
find . -name libtcl*
The output from the find command should give you the location of the library, take the output of that and do the next command with the output of find replacing $$find$$:
mv $$find$$ lib/libtcl.a
Now we continue with another find to help us locate tcl.h:
find . -name tcl.h
The output from the find command should give you the location of the header file, take the output of that and do the next command with the output of find replacing $$find$$:
mv $$find$$ include
Hopefully you know what shell you are using and can pick out which commands to use, if the first two setenv commands give command not found then use the next two, if not then don't use the next two. First set are for csh/tcsh users, following set is for bash/ksh users.
- csh/tcsh:
setenv TCLLIB '$HOME/lib'
setenv TCLINC '$HOME/include'- bash/ksh:
export TCLLIB='$HOME/lib'
export TCLINC='$HOME/include'
And then finally run configure again for Eggdrop and then make, and hopefully it will work.
3. ld: -ltcl7.4: Expected libx.so(.major.minor.xxx) (various)
ld: -ltcl7.4: expected libx.so(.major.minor.xxx)
collect2: ld returned 4 exit status
*** Error code 1
make: Fatal error: Command failed for target `eggdrop'
On some Unix boxes this seems to be caused by the linker, it is expecting a specific filename format and when it doesn't live up to it's expectations it usually barfs. I always see this caused by when the library for Tcl is called libtcl7.4.a or libtcl7.5.a, rename it to simply libtcl.a if you installed Tcl yourself, if you didn't and your using the Tcl that the system installed then do this:
View your Makefile, look for the line (should be close to the top) that says
XREQ = /usr/local/lib/libtcl7.4.a
And remember that FULL pathname. Go to your home directory, and do the following:
mkdir lib
cd lib
ln -s $$xreq$$ libtcl.a
Replace $$xreq$$ with the full pathname from the XREQ line from the Makefile.
And finally the next thing you want to do depending on what shell your using is: (try the first one, if it gives bad command then use the second)
- csh/tcsh:
setenv TCLLIB '$HOME/lib'
- bash/ksh:
export TCLLIB='$HOME/lib'
Did I say finally? Heh, finally run configure and then make again.
4. Strip terminated with signal (various)
collect2: strip terminated with signal 6 [IOT/Abort trap]
*** Exit 1
Stop.
*** Exit 1
Stop.
I don't really know what the hell is causing this, but I find that if you don't strip the binary you cut out the problem (obviously), edit your Makefile and change this line from:
GMAKE = ${MAKE} 'CC=gcc' 'AWK=awk' 'OBJS=${OBJS}' 'TCLLIBFN=tcl.a'\
'CFLAGS=${CFLAGS}' 'XREQ=${XREQ}' 'XLIBS= -L/usr/local/lib -ltcl -lm' \
'TCLLIB=${TCLLIB}' 'RANLIB=ranlib' 'STRIP=-s'
To this line below: (your lines may differ, but what you are doing is changing 'STRIP=-s' to 'STRIP=')
GMAKE = ${MAKE} 'CC=gcc' 'AWK=awk' 'OBJS=${OBJS}' 'TCLLIBFN=tcl.a'\
'CFLAGS=${CFLAGS}' 'XREQ=${XREQ}' 'XLIBS= -L/usr/local/lib -ltcl -lm' \
'TCLLIB=${TCLLIB}' 'RANLIB=ranlib' 'STRIP='
5. 'dir' undeclared (and a whole bunch of others) (AIX 4)
gcc -c -O2 -fno-strength-reduce -I.. -DHAVE_CONFIG_H filedb.c
filedb.c: In function `filedb_update':
filedb.c:209: `DIR' undeclared (first use this function)
filedb.c:209: (Each undeclared identifier is reported only once
filedb.c:209: for each function it appears in.)
filedb.c:209: `dir' undeclared (first use this function)
filedb.c:209: parse error before `*'
filedb.c:217: warning: assignment makes pointer from integer without a cast
filedb.c:218: `name' undeclared (first use this function)
filedb.c:218: dereferencing pointer to incomplete type
filedb.c:220: dereferencing pointer to incomplete type
filedb.c:220: dereferencing pointer to incomplete type
filedb.c:224: dereferencing pointer to incomplete type
filedb.c:224: dereferencing pointer to incomplete type
filedb.c:225: dereferencing pointer to incomplete type
filedb.c:230: `s' undeclared (first use this function)
filedb.c:231: `st' undeclared (first use this function)
filedb.c:232: `fdb' undeclared (first use this function)
filedb.c:232: `where' undeclared (first use this function)
filedb.c:237: `fdb1' undeclared (first use this function)
filedb.c:253: warning: assignment makes pointer from integer without a cast
make: The error code from the last command is 1.
This seems like one of the components of configure was broken, because what apparently happened was it didn't detect that this particular system had dirent.h and sys/dir.h, solution was to add -DHAVE_DIRENT_H -DHAVE_SYS_DIR_H to the Makefile's CFLGS line...
CFLGS = -DHAVE_DIRENT_H -DHAVE_SYS_DIR_H
6. 'fd_set' undeclared (and a whole bunch of others) (AIX 4)
gcc -c -O2 -fno-strength-reduce -I.. -DHAVE_CONFIG_H -DHAVE_DIRENT_H -DHAVE_SYS_DIR_H net.c
net.c: In function `sockread':
net.c:390: `fd_set' undeclared (first use this function)
net.c:390: (Each undeclared identifier is reported only once
net.c:390: for each function it appears in.)
net.c:390: parse error before `fd'
net.c:396: `fd' undeclared (first use this function)
make: The error code from the last command is 1.
Again, this seems that one of configure's components (sed, awk, or something along those lines) was broken, and it failed to detect that this system needed sys/select.h, solution was to add -DHAVE_SYS_SELECT_H to the Makefile's CFLGS line...
CFLGS = -DHAVE_DIRENT_H -DHAVE_SYS_DIR_H -DHAVE_SYS_SELECT_H
(I suppose they thought a minor error would deter anyone from continuing onward, but I am not just anyone, I am a blockhead... <grin>)
7. Unresolved or undefined symbols: ldclose, ldopen, ldnshread (AIX 3)
cc -s -o eggdrop chan.o chanprog.o chanset.o cmds.o dcc.o dccutil.o
filedb.o fileq.o files.o gotdcc.o hash.o main.o match.o mem.o misc.o
mode.o msgcmds.o msgnotice.o net.o tandcmd.o tandem.o tcl.o tclhash.o
userrec.o users.o -L/home2/f/foster/lib -ltcl7.5 -lm
0706-317 ERROR: Unresolved or undefined symbols detected:
Symbols in error (followed by references) are dumped to the load map.
The -bloadmap:<filename> option will create a load map.
.ldclose
.ldopen
.ldnshread
make: 1254-004 The error code from the last command is 8.
Apparently what is happening is a library called ld is required, and either configure doesn't know it is needed or it simple can't find it, or maybe this is a unique case, solution was to have ld linked in with the final binary.
Edit your Makefile and find the line that looks something like this:
GMAKE = ${MAKE} 'CC=cc' 'AWK=awk' 'OBJS=${OBJS}' 'TCLLIBFN=tcl7.5.a'\
'CFLAGS=${CFLAGS}' 'XREQ=${XREQ}' 'XLIBS=
-L/home2/f/foster/lib -ltcl7.5 -lm'\
'TCLLIB=${TCLLIB}' 'RANLIB=ranlib' 'STRIP=-s'
And add in -lld into the XLIBS assignment, like this...
GMAKE = ${MAKE} 'CC=cc' 'AWK=awk' 'OBJS=${OBJS}' 'TCLLIBFN=tcl7.5.a'\
'CFLAGS=${CFLAGS}' 'XREQ=${XREQ}' 'XLIBS=-lld
-L/home2/f/foster/lib -ltcl7.5 -lm'\
'TCLLIB=${TCLLIB}' 'RANLIB=ranlib' 'STRIP=-s'
8. Unsatisfied symbols 'shl_findsym' and 'shl_load' (HP-UX 9)
gcc -s -o eggdrop chan.o chanprog.o chanset.o cmds.o dcc.o
dccutil.o filedb.o fileq.o files.o gotdcc.o hash.o main.o match.o
mem.o misc.o mode.o msgcmds.o msgnotice.o net.o tandcmd.o tandem.o
tcl.o tclhash.o userrec.o users.o -L/home/hltran/tcl/lib -lt
cl7.5 -lm
/bin/ld: Unsatisfied symbols:
shl_findsym (code)
shl_load (code)
collect2: ld returned 1 exit status
*** Error code 1
Stop.
I forwarded this one to Robey and he said that Tcl 7.5 the dl library, and that apparently configure couldn't detect that this was required in this case. So try this fix, and if it works, great, if not then use Tcl 7.4, I hear this works. :)
GMAKE = ${MAKE} 'CC=gcc' 'AWK=awk' 'OBJS=${OBJS}' 'TCLLIBFN=tcl7.5.a'\
'CFLAGS=${CFLAGS}' 'XREQ=${XREQ}' 'XLIBS= -L/usr/local/lib -ltcl7.5 -lm'\
'TCLLIB=${TCLLIB}' 'RANLIB=:' 'STRIP='
And here is what you need to change:
GMAKE = ${MAKE} 'CC=gcc' 'AWK=awk' 'OBJS=${OBJS}' 'TCLLIBFN=tcl7.5.a'\
'CFLAGS=${CFLAGS}' 'XREQ=${XREQ}' 'XLIBS=-ldl -L/usr/local/lib -ltcl7.5 -lm'\
'TCLLIB=${TCLLIB}' 'RANLIB=:' 'STRIP='
Basically what you are doing is adding in -ldl to the XLIBS declaration, essentially at link time you are tell it to also link in the dl library which apparently resolves this problem.
1. Redeclaration in compat/unistd.h (Tcl 7.4/AIX 4)
cc -c -O -I. -I. -DHAVE_________=1 -DSTDC_HEADERS=1
-DNO_UNION_WAIT=1 -DNEED_MATHERR=1 -Dvfork=fork
-DTCL_LIBRARY=\"/usr/local/lib/tcl7.4\" regexp.c
"compat/unistd.h", line 42.12: 1506-343 (S) Redeclaration of execl
differs from previous declaration on line 121 of
"/usr/include/unistd.h".
"compat/unistd.h", line 42.12: 1506-378 (I) Prototype for function
execl cannot contain "..." when mixed with a nonprototype declaration.
"compat/unistd.h", line 43.12: 1506-343 (S) Redeclaration of execle
differs from previous declaration on line 123 of
"/usr/include/unistd.h".
"compat/unistd.h", line 43.12: 1506-378 (I) Prototype for function
execle cannot contain "..." when mixed with a nonprototype
declaration.
"compat/unistd.h", line 44.12: 1506-343 (S) Redeclaration of execlp
differs from previous declaration on line 125 of
"/usr/include/unistd.h".
"compat/unistd.h", line 44.12: 1506-378 (I) Prototype for function
execlp cannot contain "..." when mixed with a nonprototype
declaration.
make: The error code from the last command is 1.
Seems that configure had a brain fart... Would you believe this was the same system as in A.6 and A.7, heh, it was. Apparently it thought this system didn't have unistd.h, and was using it's compatible header, solution was to edit Makefile and change this line:
AC_FLAGS = -DHAVE_________=1 -DSTDC_HEADERS=1 -DNO_UNION_WAIT=1 -DNEED_MATHERR=1 -Dvfork=fork
To the following:
AC_FLAGS = -DHAVE_UNISTD_H=1 -DSTDC_HEADERS=1 -DNO_UNION_WAIT=1 -DNEED_MATHERR=1 -Dvfork=fork
2. Conflicting types for 'waitpid' (Tcl 7.5/SunOS 5.4)
cc -c -O -I./../generic -I. -DNO_STRERROR=1 -DNO_GETWD=1
-DNO_WAIT3=1 -DNO_UNAME=1 -DNO_DIRENT_H=1 -DHAVE_UNISTD_H=1
-DHAVE_SYS_TIME_H=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_TIMEZONE_VAR=1
-DUSE_DIRENT2_H=1 -DNO_UNION_WAIT=1 -DNEED_MATHERR=1 -Dvfork=fork -DN
O_GETTOD=1 -DGETTOD_NOT_DECLARED=1 -DTCL_SHLIB_EXT=\".so\"
./../compat/waitpid.c
./../compat/waitpid.c:69: conflicting types for `waitpid'
/usr/include/sys/wait.h:80: previous declaration of `waitpid'
make: *** [waitpid.o] Error 1
Configure apparently couldn't figure this one out, probably because the system it was configured on sucks badly. Change the following line in Makefile:
COMPAT_OBJS = getcwd.o opendir.o strstr.o strtol.o tmpnam.o
waitpid.o strstr.o strtoul.o strtod.o strncasecmp.o
To the following:
COMPAT_OBJS = getcwd.o opendir.o strstr.o strtol.o tmpnam.o
strstr.o strtoul.o strtod.o strncasecmp.o
We are deleting the waitpid.o object file. The problem was that configure didn't detect that waitpid() wasn't necessary, so it caused a compatible waitpid() function to be compiled.
3. Undefined symbols in tclUnixChan.o -- and many others (Tcl 7.5/SunOS 5.4)
gcc tclAppInit.o -L/export/home/rewt/tcl7.5/unix -ltcl7.5 -ldl -lm -lc \
-o tclsh
Undefined first referenced
symbol in file
socket
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
getpeername
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
recv
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
gethostbyname
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
accept
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
send
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
bind
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
setsockopt
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
getwd
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(getcwd.o)
getservbyname
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclIOSock.o)
gethostbyaddr
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
getsockopt
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclIOSock.o)
inet_addr
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
inet_ntoa
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
getsockname
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
listen
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
connect
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(tclUnixChan.o)
ld: fatal: Symbol referencing errors. No output written to tclsh
make: *** [tclsh] Error 1
Configure couldn't find or detect that nsl and socket libraries were required, so we have to force it to use them. The solution is to edit Makefile and change the following line:
LIBS = -ldl
To the following:
LIBS = -ldl -lnsl -lsocket
4. Undefined symbol 'getwd' in getcwd.o (Tcl 7.5/SunOS 5.4)
gcc tclAppInit.o -L/export/home/rewt/tcl7.5/unix -ltcl7.5 -ldl -lnsl -lsocket -lm -lc \
-o tclsh
Undefined first referenced
symbol in file
getwd
/export/home/rewt/tcl7.5/unix/libtcl7.5.a(getcwd.o)
ld: fatal: Symbol referencing errors. No output written to tclsh
make: *** [tclsh] Error 1
Configure apparently couldn't figure this one out, probably because the system it was configured on sucks badly. Change the following line in Makefile:
COMPAT_OBJS = getcwd.o opendir.o strstr.o strtol.o tmpnam.o
strstr.o strtoul.o strtod.o strncasecmp.o
To the following:
COMPAT_OBJS = opendir.o strstr.o strtol.o tmpnam.o strstr.o
strtoul.o strtod.o strncasecmp.o
We are deleting the getcwd.o object file. The problem was that configure didn't detect that getcwd() wasn't necessary, so it caused a compatible getcwd() function to be compiled.
5. There's no Tcl installed on your shell
If there's really no TCL installed on your shell, you can install it temporary in /tmp or your home. Get the latest version of TCL from ftp://ftp.scriptics.com/pub/tcl/ and follow the installation steps in it's README file. After you've installed Tcl, you have to make configure detect Tcl. To achieve this, you have to set either environmental variables:
- csh/tcsh:
setenv TCLLIB '/path/to/tcl/lib'
setenv TCLINC '/path/to/tcl/include'- bash/ksh:
export TCLLIB='/path/to/tcl/lib'
export TCLINC='/path/to/tcl/include'./configure --with-tcllib='/path/to/libtclx.x.so' --with-tclinc='/path/to/tcl.h'
© 1997 Robey Pointer
© 1999,2000 Eggheads