On Sat, 12 Dec 2009 11:08:11 +0000, you wrote: >where problems arise if a library included in Sage is installed on the system >too. Of cause they do! It's simply wrong to use and install libraries that the system already supplies. A sane software package detects the libraries installed in the system and only compiles/installs those that are missing. If distributed in compiled form, the only sane way is to statically link in the libraries to avoid clashes with system supplied ones. >Is there a way to specify that only the first copy of the library is linked, and >not any other copies gcc might find? Readline is not the only library where >issues have arisen (OpenSSL libraries on OpenSolaris is another example). AFAIK there is no way. Philipp
