Makefiles, Object files, Source files, OH MY!

Inquirer · 04-29-2003, 09:19 PM

Hmm... My third qhestion of the night.

I am trying to make my program lake less time to compile, so i made my program modular (.o files), and made a makefile to only compile what is needed.

Here is the deal (greatly simplified):
main.cpp

Code:

#include "file2.h"
#include "file3.h"
#include "file4.h"

file2.cpp

Code:

#include "file2.h"
class stuff;

file3.cpp

Code:

#include "file3.h"
class morejunk;

file4.cpp

Code:

#include "file4.h"
class evenmorejunk;

And all the .h files hold the prototypes for their namesake.cpp files.
Now, the makefile has this: (simplified, again)

makefile

Code:

junk : main.o file2.o file3.o file4.o
        g++ -o junk main.o file2.o file2.o file4.o

file2.o : file2.cpp file2.h
        g++ -c file2.cpp

file3.o : file3.cpp file3.h
        g++ -c file3.cpp

file4.o : file4.cpp file4.h
        g++ -c file4.cpp

Now, the linker is giving me errors telling me:

Code:

nemoserv.cpp:27: storage size of `log' isn't known
nemoserv.cpp:30: storage size of `opts' isn't known
nemoserv.cpp:49: storage size of `chman' isn't known
nemoserv.cpp:50: storage size of `cmd' isn't known

These are the elements of a struct that is defined in a separate source file, and

Code:

nemoserv.cpp:277: aggregate `rawMsg message' has incomplete type and 
cannot be initialized

This class is defined also in another source file.

Please tell me what I am doing wrong, or if you need more information (and what)

Thanks!
~EtherealFlaim
[/code]

Codeplug · 04-29-2003, 09:58 PM

Those are compiler errors, not linker errors. You will need to post nemoserv.cpp (and any files it includes) if you want it fixed for you.
Also, if you've made any changes, re-post the compiler errors so the line numbers will correct.

gg

Inquirer · 04-29-2003, 10:36 PM

Code:

g++ -ggdb -pthread -c nemoserv.cpp
nemoserv.cpp:27: aggregate `logger log' has incomplete type and cannot 
be initialized
nemoserv.cpp:30: aggregate `parsedArgs opts' has incomplete type and 
cannot be initialized
nemoserv.cpp:49: aggregate `chanManager chman' has incomplete type and 
cannot be initialized
nemoserv.cpp:50: aggregate `commander cmd' has incomplete type and 
cannot be initialized
nemoserv.cpp: In function `int main (int, char **)':
nemoserv.cpp:88: invalid use of undefined type `struct parsedArgs'
nemoirc.h:20: forward declaration of `struct parsedArgs'
nemoserv.cpp: In function `int recvParser (char *, int)':
nemoserv.cpp:277: aggregate `rawMsg message' has incomplete type and 
cannot be initialized
nemoserv.cpp: At top level:
nemoserv.cpp:27: storage size of `log' isn't known
nemoserv.cpp:30: storage size of `opts' isn't known
nemoserv.cpp:49: storage size of `chman' isn't known
nemoserv.cpp:50: storage size of `cmd' isn't known
make: *** [nemoserv.o] Error 1

Thats the full make output. It works (compiles, not like perfectly) if you uncomment the line in the two .h files (that have .cpp namesakes) and just compile the main module.

(NOTE: THIS FILE IS MADE WITH `tar -czvf all.zip *`, so you will need tar to unzip it. I'm not sure what graphical unzippers can untar/gunzip files. You may have to rename the file to .tgz or .tar.gz)

04-29-2003, 09:19 PM	#1
Inquirer Rebooted Join Date: Apr 2002 Posts: 281	Makefiles, Object files, Source files, OH MY! Hmm... My third qhestion of the night. I am trying to make my program lake less time to compile, so i made my program modular (.o files), and made a makefile to only compile what is needed. Here is the deal (greatly simplified): main.cpp Code: #include "file2.h" #include "file3.h" #include "file4.h" file2.cpp Code: #include "file2.h" class stuff; file3.cpp Code: #include "file3.h" class morejunk; file4.cpp Code: #include "file4.h" class evenmorejunk; And all the .h files hold the prototypes for their namesake.cpp files. Now, the makefile has this: (simplified, again) makefile Code: junk : main.o file2.o file3.o file4.o g++ -o junk main.o file2.o file2.o file4.o file2.o : file2.cpp file2.h g++ -c file2.cpp file3.o : file3.cpp file3.h g++ -c file3.cpp file4.o : file4.cpp file4.h g++ -c file4.cpp Now, the linker is giving me errors telling me: Code: nemoserv.cpp:27: storage size of `log' isn't known nemoserv.cpp:30: storage size of `opts' isn't known nemoserv.cpp:49: storage size of `chman' isn't known nemoserv.cpp:50: storage size of `cmd' isn't known These are the elements of a struct that is defined in a separate source file, and Code: nemoserv.cpp:277: aggregate `rawMsg message' has incomplete type and cannot be initialized This class is defined also in another source file. Please tell me what I am doing wrong, or if you need more information (and what) Thanks! ~EtherealFlaim [/code] __________________ Compilers: GCC on Red Hat 8.1 (Primary) GCC on Mac OS X 10.2.4 (Secondary) Others: MinGW on XP Last edited by Inquirer; 04-29-2003 at 09:40 PM.
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04-29-2003, 09:58 PM	#2
Codeplug Registered User Join Date: Mar 2003 Posts: 3,844	Those are compiler errors, not linker errors. You will need to post nemoserv.cpp (and any files it includes) if you want it fixed for you. Also, if you've made any changes, re-post the compiler errors so the line numbers will correct. gg
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