CFLAGS library -l and -i

abs · 04-07-2004, 05:33 PM

i'm using wingtk. in the makefile, i've got the cflags line as:
CFLAGS=-s -mwindows -mno-cygwin -fnative-struct -mno-cygwin -fnative-struct -IC:\WINGTK\INCLUDE\ -IC:\wingtk\INCLUDE\G__~1 -IC:\WINGTK\INCLUDE\ -LC:\WINGTK\LIB\ -BC:\winGTK\BIN\ -IC:\WINGTK\INCLUDE\GDK -DHAVE_CONFIG_H

i need to add these libs so that my 'program can find it at build time': -lgtk-win32-2.0 -lgdk-win32-2.0 -lgthread-2.0 -lgdi32 -lole32 -luuid -latk-1.0 -lgdk_pixbuf-2.0 -lpangowin32-1.0 -lgdi32 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -lintl -liconv. where in the line would i put it? does it even come in the cflags part or somewhere else? i added it after the '-fnative-struct' and other include dirs just before '-DHAVE_CONFIG_H'.

as of now, the line is (stripped down):
CFLAGS=-s -mwindows -mno-cygwin -fnative-struct -mno-cygwin -fnative-struct -lpango-1.0 -lintl -liconv -IC:\WINGTK\INCLUDE\ -IC:\WINGTK\INCLUDE\ -LC:\WINGTK\LIB\ -BC:\winGTK\BIN\ -IC:\WINGTK\INCLUDE\GDK -IC:\WINGTK\INCLUDE\gtk-2.0 -IC:\WINGTK\INCLUDE\gtkdeps-2.0 -LC:\WINGTK\LIB\glib-2.0\include -LC:\WINGTK\LIB\gtk-2.0\include -DHAVE_CONFIG_H

i see messages like

Code:

gcc: -lpango-1.0: linker input file unused since linking not done
gcc: -lintl: linker input file unused since linking not done
gcc: -liconv: linker input file unused since linking not done

and the error is:
'C:\WINGTK\BIN\ld.exe: cannot open -lpango-1.0: No such file or directory'
and 'pango-1.0.lib' is in C:\WINGTK\LIB\.

syntax is wrong? most of the makefile stuff on the net is about how they work which i sorta know. was looking for some captured output from a 2.4 kernel recompile for hints on this.

aluser · 04-07-2004, 11:01 PM

most properly things like -lfoo and -Lfoo should go in LDFLAGS, not CFLAGS. -Ifoo can go in CPPFLAGS if you like (That was a dash-eye not dash-ell) and I *think* -ffoo and -mbar can as well.

The 'linker input file unused' business is comming from the fact that you have dash-ell options in CFLAGS, and it's not too big a deal.

if you have '-LC:\WINGTK\LIB -lpango-1.0' in LDFLAGS I would think it would find libpango. You could try some variations like -lpango-1.0.lib or just pango-1.0.lib ..

On *nix, gtk has a utility which spits out cflags and ldflags for you. you use it like

gcc -c `pkg-config gtk+-2.0 --cflags` foo.c
gcc foo.o `pkg-config gtk+-2.0 --libs` -o foo

perhaps there is an equivalent on windows.

abs · 04-11-2004, 10:03 PM

unfortunately, the ` ` structure doesn't expand/run in windows. so i've pasted the outputs of 'pkg-config gtk+-2.0 --cflags' and 'pkg-config gtk+-2.0 --libs' into CFLAGS and LDFLAGS.

these 2 targets in a makefile are interpreted diffrerently, right? 1.

Code:

hello: hello.c
     $(CC) $(CFLAGS) $? $(LDFLAGS) -o $@

it compiles and links each file and then moves to the next.

2.

Code:

all: check
     $(CC) $(CFLAGS) -c $(SRCS)
     $(CC) $(LDFLAGS) $(OBJS) -o $(OUTPUT)

compiles all the files and then links them.

would the sequence used make a big diff to a multi-filed program?

i moved the -l's to LDFLAGS but i get the message:
ld: cannot open -lgtk-win32-2.0: No such file or directory

the dir containing the file has been included and the file's name is gtk-win32-2.0.lib. any other combo i should try?