Package: blitz++ Version: 1:0.8-4 Severity: normal
Hi, I've had problems building a shared library against the Blitz++ Debian package. According to the Blitz++ maintainer, the correct way to solve this problem is to compile Blitz++ as a shared library, by passing --enable-shared to configure. The list archives appear to be somewhat broken, but you can see the beginning of the relevant thread at http://sourceforge.net/mailarchive/forum.php?thread_id=10475329&forum_id=45523 The relevant message (which does not currently appear in the archive) is appended below. If necessary, I expect that I could come up with a small example that exhibits the error, but hopefully that will not be necessary. Faheem. ************************************************************************ On Wed, 2006-05-31 at 16:03 -0400, Faheem Mitha wrote: > The current Debian package does not contain a shared version of the > library. Should it? Currently, linking against blitz amounts to linking > against the static version, I presume. Yes, and that is the problem. You cannot build a shared object like your Debian package was trying to do and link against code that has not been compiled as position independent. Thus, the blitz library must be compiled with the -fPIC flag, and that is what the configure option --enable-shared does for you. > Hmm. Ok. Would shared and static versions of the library still be created > with the --enable-shared option, or would one have to do two separate > builds? A static version is built by default (--enable-static is the default, so this flag is unnecessary). With --enable-shared you get both static and shared versions of the blitz library. The libblitz.la file works in conjunction with libtool to select the appropriate library version at link time. In your Debian bug report, you should tell them to use --enable-shared. Regards, Julian C. -- Dr. Julian C. Cummings E-mail: [EMAIL PROTECTED] California Institute of Technology Phone: 626-395-2543 1200 E. California Blvd., Mail Code 158-79 Fax: 626-584-5917 Pasadena, CA 91125 Office: 125 Powell-Booth -- System Information: Debian Release: 3.1 APT prefers oldstable APT policy: (500, 'oldstable'), (500, 'stable'), (50, 'unstable'), (50, 'testing'), (1, 'experimental') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.4.27.040914 Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1) Versions of packages blitz++ depends on: ii blas 1.1-14 Basic Linear Algebra Subroutines, ii g++ 4:3.3.5-3 The GNU C++ compiler blitz++ recommends no packages. -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
