Re: Build problem

[<tim...@en...>]

Hi Juergen,

Juergen Wieferink wrote:
> Though I found some things.
> First the warnings:
>
> parse.c:846: warning: `is_ud_function' defined but not used
> plot3d.c:1159: warning: `specs' might be used uninitialized in this fun=
ction
> ../term/wxt.trm:112: warning: `font_setting' might be used uninitialize=
d in=20
> this function
> wxterminal/gp_cairo.c:1029: warning: `overprinted_width' might be used=20
> uninitialized in this function
>
> The first one is recently introduced, the second one seems to be
> false alarm.  Of the third one I've heard similar diagnose on the
> list.
>  =20
The warnings about wxt.trm and gp_cairo.c are false alarms, but I will=20
initialize the variables to avoid the warnings.
> Linking fails with:
>
> g++  -g -O2 -I/usr/lib/wx/include/gtk2-unicode-release-2.5=20
> -I/usr/include/wx-2.5 -DGTK_NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_B=
ITS=3D64=20
> -D_LARGE_FILES   -I/usr/local/include/cairo -I/usr/X11R6/include=20
> -I/usr/include/libpng12 -I/usr/include/freetype2  =20
> -I/usr/local/include/pango-1.0 -I/opt/gnome/include/glib-2.0=20
> -I/opt/gnome/lib/glib-2.0/include   -DXTHREADS -D_REENTRANT -DXUSE_MTSA=
FE_API=20
> -I/usr/local/include/pango-1.0 -I/usr/X11R6/include -I/usr/include/free=
type2=20
> -I/usr/include/freetype2/config -I/opt/gnome/include/gtk-2.0=20
> -I/opt/gnome/lib/gtk-2.0/include -I/opt/gnome/include/atk-1.0=20
> -I/opt/gnome/include/glib-2.0 -I/opt/gnome/lib/glib-2.0/include    -L/u=
sr/lib=20
> -Wl,-rpath,/usr/lib -L/usr/X11R6/lib -o gnuplot  alloc.o axis.o breader=
s.o=20
> bitmap.o color.o command.o contour.o datafile.o dynarray.o eval.o fit.o=
=20
> gadgets.o getcolor.o graph3d.o graphics.o help.o hidden3d.o history.o=20
> internal.o interpol.o matrix.o misc.o mouse.o parse.o plot.o plot2d.o=20
> plot3d.o pm3d.o readline.o save.o scanner.o set.o show.o specfun.o stan=
dard.o=20
> stdfn.o tables.o term.o time.o unset.o util.o util3d.o variable.o versi=
on.o =20
> gp_cairo.o wxt_gui.o -lreadline  -lncurses  -lz -lgd -lXpm -lX11 -ljpeg=
=20
> -lfontconfig -lfreetype -lpng12 -lz -lm  -pthread   -L/usr/X11R6/lib =20
> -lwx_gtk2u_xrc-2.5 -lwx_gtk2u_html-2.5 -lwx_gtk2u_adv-2.5 -lwx_gtk2u_co=
re-2.5=20
> -lwx_baseu_xml-2.5 -lwx_baseu_net-2.5 -lwx_baseu-2.5  -L/usr/local/lib=20
> -L/usr/X11R6/lib -lcairo -lXrender -lX11 -lXext -lpng12 -lz -lm -lfreet=
ype=20
> -lfontconfig   -L/usr/local/lib -L/opt/gnome/lib -lpango-1.0 -lgobject-=
2.0=20
> -lgmodule-2.0 -ldl -lglib-2.0   -L/usr/local/lib -L/opt/gnome/lib=20
> -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lm -lpangoxft-1=
.0=20
> -lpangox-1.0 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lgmodule-2.0 -ld=
l=20
> -lglib-2.0   -lm=20
> wxterminal/gp_cairo.c:1592: undefined reference to `pango_cairo_create_=
layout'
> gp_cairo.o(.text+0x18a3): In function `gp_cairo_enhanced_flush':
> wxterminal/gp_cairo.c:1202: undefined reference to `pango_cairo_create_=
layout'
> gp_cairo.o(.text+0x19a5):wxterminal/gp_cairo.c:1167: undefined referenc=
e to=20
> `pango_cairo_create_layout'
> gp_cairo.o(.text+0x19f0):wxterminal/gp_cairo.c:1175: undefined referenc=
e to=20
> `pango_cairo_create_layout'
> gp_cairo.o(.text+0x1bf1):wxterminal/gp_cairo.c:1101: undefined referenc=
e to=20
> `pango_cairo_create_layout'
> gp_cairo.o(.text+0x1dc7):wxterminal/gp_cairo.c:1124: more undefined ref=
erences=20
> to `pango_cairo_create_layout' follow
> gp_cairo.o(.text+0x2ec6): In function `gp_cairo_draw_enhanced_text':
> wxterminal/gp_cairo.c:1391: undefined reference to `pango_cairo_update_=
layout'
> gp_cairo.o(.text+0x2ed5):wxterminal/gp_cairo.c:1392: undefined referenc=
e to=20
> `pango_cairo_show_layout'
> gp_cairo.o(.text+0x3c9a): In function `gp_cairo_draw_text':
> wxterminal/gp_cairo.c:637: undefined reference to `pango_cairo_create_l=
ayout'
> gp_cairo.o(.text+0x3e6a):wxterminal/gp_cairo.c:690: undefined reference=
 to=20
> `pango_cairo_update_layout'
> gp_cairo.o(.text+0x3e79):wxterminal/gp_cairo.c:691: undefined reference=
 to=20
> `pango_cairo_show_layout'
> collect2: ld returned 1 exit status
> make[1]: *** [gnuplot] Fehler 1
>
>
> Is this a problem with the installation of the libs?
>  =20
I don't think so.

You are missing the linking flag '-lpangocairo'.

I guess you have gtk+ 2.6, not 2.8 or later. That's fine in terms of=20
what we need for the wxWidgets terminal. However, gtk+ 2.8 is dependant=20
on cairo, and was magically adding the '-lpangocairo' flag. gtk+ 2.6=20
does not depend on cairo, hence the missing flag. I've fixed that in=20
CVS. Please try to see if the problem is fixed.

Well, so far your experience and your reports have been really fruitful,=20
thank you very much, and please go on ;-)

Timoth=E9e