Hi, I have some questions about OS specific ways to find out the name of a running programme outside function main. The following section verbosely introduces the problem and what information I found so far. You may just skip down to "Questions". I hope someone can fill in the blanks.
The new configuration infrastructure will make it possible to specify different configurations for different applications, based on the executable name. Usually this name is only available as argv[0] in function main which is out of reach for a library such as libGL and the Mesa drivers. Different Unix flavours offer different ways of getting the program name outside main. On GNU systems there is the global variable program_invocation_short_name. On some BSD versions there is a function getprogname. Now my problem is to know which version (if any) is available at compile time. This is the information I found: GLIBC (don't know which versions): program_invocation_short_name FreeBSD (>= 4.4): getprogname NetBSD (>= 1.6): getprogname In the BSD DRM source code I found out that there are macros __OpenBSD__, __NetBSD__ and __FreeBSD__ to distinguish different BSD flavours. But I don't know how the check the exact version. The GLIBC version can be checked with the macros __GLIBC__ and __GLIBC_MINOR__ or __GNU_LIBRARY__ for older versions. Questions: 1) Are there similar mechanisms on other relevant OSes, specifically OpenBSD and maybe Solaris? 2) (How) can one check for specific *BSD versions via #if ? 3) Are there old GLIBC versions that don't have program_invocation_short_name? References: features.h in glibc http://www.gnu.org/manual/glibc-2.2.5/html_node/Error-Messages.html http://www.freebsd.org/cgi/man.cgi?query=getprogname&apropos=0&sektion=0&manpath=FreeBSD+4.8-stable&format=html Regards, Felix ------------ __\|/__ ___ ___ ------------------------- Felix ___\_e -_/___/ __\___/ __\_____ You can do anything, Kühling (_____\Ä/____/ /_____/ /________) just not everything [EMAIL PROTECTED] \___/ \___/ U at the same time. ------------------------------------------------------- This SF.Net email is sponsored by: INetU Attention Web Developers & Consultants: Become An INetU Hosting Partner. Refer Dedicated Servers. We Manage Them. You Get 10% Monthly Commission! INetU Dedicated Managed Hosting http://www.inetu.net/partner/index.php _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
