Re: Latest configure.in change breaks building

["Jan Djärv" <jan.h.d@swipnet.se>]

Sascha Wilde skrev:
> Hi *,
> 
> the latest change on configure.in:
> 
> 2007-01-26  Jan Djärv  <jan.h.d@swipnet.se>
> 
> * configure.in: Add check for libXft.
> 
> breaks the build process for me (CVS Head on GNU/Linux with GTK+ frontend):
> 
> 
> The new configure tests are successful: checking for xft >= 0.13.0... yes 
> checking XFT_CFLAGS... -I/usr/X11R6/include -I/usr/include/freetype2 
> checking XFT_LIBS... -L//lib -L/usr/X11R6/lib -lXft -lXrender -lX11 -lXext
> -lfontconfig -lfreetype -lz

What is //lib?  It looks broken.

> checking X11/Xft/Xft.h usability... yes checking X11/Xft/Xft.h presence...
> yes checking for X11/Xft/Xft.h... yes checking for XftFontOpen in -lXft...
> yes
> 
> But when building various libs seem to be missing when linking emacs:
> 
> gcc -nostdlib `./prefix-args -Xlinker  -R/usr/X11R6/lib -z nocombreloc`
> -Wl,-znocombreloc -L/usr/X11R6/lib -o temacs pre-crt0.o /usr/lib/crt1.o
> /usr/lib/crti.o dispnew.o frame.o scroll.o xdisp.o xmenu.o window.o
> charset.o coding.o category.o ccl.o cm.o term.o xfaces.o xterm.o xfns.o
> xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o gtkutil.o emacs.o
> keyboard.o macros.o keymap.o sysdep.o buffer.o filelock.o insdel.o marker.o
> minibuf.o fileio.o dired.o filemode.o cmds.o casetab.o casefiddle.o
> indent.o search.o regex.o undo.o alloc.o data.o doc.o editfns.o callint.o
> eval.o floatfns.o fns.o print.o lread.o abbrev.o syntax.o unexelf.o
> bytecode.o process.o callproc.o region-cache.o sound.o atimer.o doprnt.o
> strftime.o intervals.o textprop.o composite.o md5.o    terminfo.o
> lastfile.o   vm-limit.o   mktime.o    -L/usr/X11R6/lib -L/usr/local/lib
> -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lm -lpangocairo-1.0
> -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -lpthread
> -lSM -lICE -ltiff -ljpeg -lpng -lz -lm -lungif -lXpm -L  -lncurses   -lm
> -lgcc -lc -lgcc /usr/lib/crtn.o dispnew.o: In function `init_display': 
> /usr/local/src/wilde/emacs-hg-work/src/dispnew.c:6782: undefined reference
> to `tgetent' cm.o: In function `cmcostinit':

You have -L -lncurses in there.  What happens is when the preprocessor reads 
Makefile.c (generated from Makefile.in), your -L//lib ... is taken as a 
comment, and everything after // is removed, so you are left with -L.

Please do:

% pkg-config --libs xft

and if there is a // in there, check xft.pc (in /usr/lib/pkgconfig or 
/usr/X11R6/lib/pkgconfig usually) and see where //lib comes from.  My guess is 
that there is a variable substitution in xft.pc that does not work right.

	Jan D.