Thread: makefile help

heres my current makefile (took out the rules for install and clean since theyre kinda irrelevant

#
# Makefile.mingw
#
# Description: Makefile for win32 (mingw) version of Gaim Plugins
#

#
# PATHS
#

GAIM_PLUGINS := .
GAIM_TOP := ..
ROOT_DIR := ../../win32-dev
GTK_TOP := ../../win32-dev/gtk_2_0
OSCAR_ROOT := ../src/protocols/oscar
GAIM_INSTALL_DIR := $(GAIM_TOP)/win32-install-dir
TICKER := ./ticker
TRANSPARENCY := ./win32/transparency
WINPREFS := ./win32/winprefs
PERL_PLUGIN_LOADER := ./perl
DOCKLET := ./docklet

##
## VARIABLE DEFINITIONS
##

# Compiler Options

CFLAGS =

DEFINES =

.SUFFIXES:
.SUFFIXES: .c .dll

##
## INCLUDE MAKEFILES
##

include $(GAIM_TOP)/src/win32/global.mak

##
## INCLUDE PATHS
##

INCLUDE_PATHS += -I$(OSCAR_ROOT) \
-I$(GTK_TOP)/include \
-I$(GTK_TOP)/include/gtk-2.0 \
-I$(GTK_TOP)/include/glib-2.0 \
-I$(GTK_TOP)/include/pango-1.0 \
-I$(GTK_TOP)/include/atk-1.0 \
-I$(GTK_TOP)/lib/glib-2.0/include \
-I$(GTK_TOP)/lib/gtk-2.0/include \
-I$(GAIM_TOP) \
-I$(GAIM_TOP)/src \
-I$(GAIM_TOP)/src/win32 \



LIB_PATHS = -L$(GTK_TOP)/lib \
-L$(GAIM_TOP)/src \


##
## LIBRARIES
##

LIBS = -lgtk-win32-2.0 \
-lglib-2.0 \
-lgdk-win32-2.0 \
-lgobject-2.0 \
-lgmodule-2.0 \
-lgdk_pixbuf-2.0 \
-lpango-1.0 \
-lintl \
-lws2_32 \
-lgaim


##
## RULES
##

##
## TARGET DEFINITIONS
##

.PHONY: all clean

all: plugins
$(MAKE) -C $(TICKER) -f Makefile.mingw
$(MAKE) -C $(WINPREFS) -f Makefile.mingw
$(MAKE) -C $(TRANSPARENCY) -f Makefile.mingw
$(MAKE) -C $(PERL_PLUGIN_LOADER) -f Makefile.mingw
$(MAKE) -C $(DOCKLET) -f Makefile.mingw

#
# BUILD Plugin
#

.c.dll:
$(CC) $(CFLAGS) $(DEFINES) $(INCLUDE_PATHS) -o [email protected] -c $<
$(CC) -shared [email protected] $(LIB_PATHS) $(LIBS) $(DLL_LD_FLAGS) -o $@

plugins: \
autorecon.dll \
history.dll \
iconaway.dll \
idle.dll \
spellchk.dll \
statenotify.dll \
alice.dll \
timestamp.dll

i have 3 header files and their counterpart c files. i have them #included' into my main file, but when i try to compile through mingw on cygwin, it says


alice.dll.o(.text+0x2c3):alice.c: undefined reference to `initialize'
C:\cygwin\bin\make.exe: *** [alice.dll] Error 1


theres no errors in the source files. so i guess its a makefile problem. i cant figure it out, ive been looking it up for about an hour now.

ideas?
thanks

oh yeah - im also compiling on windows using mingw under cygwin. i think i mentioned that already. oh well.

>>alice.c: undefined reference to `initialize'
means alice.c has a reference to a variable (or function) called "initialize" that isn't defined anywhere. Is it in an external file or something?

its declared in the .h file and then the function itself is in the .h file. perhaps its an overloading issue. the problem with this thing is that its not in a class, spread out in .h files, same thing with gaim.

i also noticed it says this:
alice.c:114: warning: implicit declaration of function `initialize'

so i guess an overloading issue? ill try adding another parameter to it and see if that helps..

thanks

tried that. no workie

alice.dll.o(.text+0x2c5):alice.c: undefined reference to `initialize'


and it also only says it while linking =\

Post some code to show the implementation of initialize and it be called.

ok

in alice.c

PHP Code:

static void init_plugin(GaimPlugin *plugin) {

    void *conv_handle = gaim_conversations_get_handle();

    //alice
    if(initialize("C:/alice/data/alice.ini", 0)!=0){
        MessageBox(NULL,"Could not initilize ALICE", "Error", MB_OK);
    }

    gaim_signal_connect(conv_handle, "received-im-msg", plugin, GAIM_CALLBACK(im_recv_im), NULL);
    gaim_signal_connect(conv_handle, "displayed_im_msg", plugin, GAIM_CALLBACK(disp_msg), NULL);
} 


alice_core.h

PHP Code:

int initialize(char *init_file, int crap); 


alice_core.c

PHP Code:

int initialize(char *init_file, int crap){
   ...
} 


You said:

its declared in the .h file and then the function itself is in the .h file.

Now you post code showing that initialize() is in the .h file, with the function itself in a .c file. What's going there??

Also, are you writing C or CPP? Your file extensions should be set accordingly.

Anyway, assuming the situation is as how you've posted the code, the object modules from the compilation of alice.c and alice_core.c need to be linked together. On the command line you'd go something like this:

Code:

gcc -o myprog alice.c alice_core.c

or

gcc -c alice.c
gcc -c alice_core.c
gcc -o myprog alice.o alice_core.o

well, im not sure. in the core gaim source files, all of the prototypes are in the header files, and the definitions are in the corresponding c file

its c code. all of the extensions check out.

so how would i do that in the makefile. theres about 5 or 6 other alice_*.c/.h files that also need to be linked. looking at the makefile it should automatically be adding them. if i move the location of the alice_*.? files, it still gives the same error. like if i move them into the same folder where its getting the other files to link from (like in the win_32-dev folder). thats whats confusing me


ill try copying eerything from the .h into the .c

The compiler doesn't know that alice.o and alice_core.o need linking unless you explicitly tell it.

Checkout a basic make tutorial:
http://www.eng.hawaii.edu/Tutor/Make/
http://www.eng.hawaii.edu/Tutor/Make/3-2.html

thanks, ill check those out

.c.dll:
$(CC) $(CFLAGS) $(DEFINES) $(INCLUDE_PATHS) -o [email protected] -c $<
$(CC) -shared [email protected] $(LIB_PATHS) $(LIBS) $(DLL_LD_FLAGS) -o $@

thats the closest thing i see to building anything, and it seems like its recursively going through the directories and building everything. i added the path to alice and its stuff into the INCLUDE_PATHS, and its still giving the error. ill try building it from scratch, but i have like no idea what im doing.