[TriLUG] executable and non-executable libraries

[Joseph Mack NA3T]

I'm building linux from scratch. In the build for 
ncurses-5.5 (section 6.18), post install instructions set 
the ncurses libraries (/usr/lib/*.5.5) executable (755), but 
make libncurses++w.a non-executable (644).

I'd assumed all libraries should be 644. When do you make a 
library executable?

When I actually execute these libraries from the command 
line I get a segv.

The only executable library I know about is /lib/libc.so.6 
which when executed, will give you its specs and build info. 
How do you make libc.so.6 executable? It needs a main()? If 
it has a main(), how does libc.so.6 get linked to an 
executable with a real main()?

google with linux, shared, library, executable, 
non-executable didn't find anything relevant.

Thanks Joe

-- 
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!