Re: GLib

[Juergen Schoenwaelder <schoenw@ibr.cs.tu-bs.de>]

>>>>> Marcus Lunzenauer writes:

Marcus> da ich leider nicht im Skript finden konnte, wie man Sachen
Marcus> mit Glib übersetzt, habe ich ins Makefile geschaut; stimmt
Marcus> es das man dafür:

Marcus> `pkg-config --cflags gnet`

Marcus> und

Marcus> `pkg-config --libs gnet`

Marcus> benötigt?

Aus der pkg-config(1) manual page:

DESCRIPTION
       The pkg-config program is  used  to  retrieve  information
       about  installed libraries in the system.  It is typically
       used to compile and link against one  or  more  libraries.
       Here is a typical usage scenario in a Makefile:

       program: program.c
            cc program.c `pkg-config --cflags --libs gnomeui`

       pkg-config  retrieves information about packages from spe-
       cial metadata files. These files are named after the pack-
       age,  with the extension .pc. By default, pkg-config looks
       in the directory prefix/lib/pkgconfig for these files;  it
       will  also  look in the colon-separated (on Windows, semi-
       colon-separated) list  of  directories  specified  by  the
       PKG_CONFIG_PATH environment variable.

       The  package name specified on the pkg-config command line
       is defined to be the name of the metadata file, minus  the
       .pc  extension. If a library can install multiple versions
       simultaneously, it must give each  version  its  own  name
       (for  example,  GTK 1.2 might have the package name "gtk+"
       while GTK 2.0 has "gtk+-2.0").

Die Idee ist, dass das Makefile nicht wissen muss, welche Compiler
Optionen genau gesetzt werden muessen auf der aktuellen Plattform.

Marcus> Wofür ist dies gut?:

Marcus> -Wno-parentheses -Wno-import

Aus der gcc(1) manual page:

       -Wno-import
           Inhibit warning messages about the use of #import.

       -Wparentheses
           Warn if parentheses are omitted in certain contexts, such as when
           there is an assignment in a context where a truth value is
           expected, or when operators are nested whose precedence people
           often get confused about.

Das -Wno-parentheses schaltet -Wparentheses aus.

/js

-- 
Juergen Schoenwaelder    <http://www.informatik.uni-osnabrueck.de/schoenw/>