Re: how to set up the vpath/VPATH entries for link lib search

[Robert P. J. Day]

On Tue, 1 Mar 2005, Paul D. Smith wrote:

> %% "Robert P. J. Day" <address@hidden> writes:
>
>   rpjd> "When a prerequisite's name has the form `-lname', make handles it
>   rpjd> specially by searching for the file `libname.so' in the current
>   rpjd> directory, in directories specified by matching vpath search paths and
>   rpjd> the VPATH search path, and then in the directories `/lib', `/usr/lib',
>   rpjd> and `prefix/lib' (normally `/usr/local/lib', but MS-DOS/MS-Windows
>   rpjd> versions of make behave as if prefix is defined to be the root of the
>   rpjd> DJGPP installation tree).
>
>   rpjd> If that file is not found, then the file `libname.a' is searched for,
>   rpjd> in the same directories as above."
>
>   rpjd>   ok, so what's the standard way you would set vpath?
>
>   rpjd>   vpath %.so dir1:dir2:dir3           ??
>   rpjd>   vpath lib.%so dir1:dir2:dir3                ??
>
> Well, if you really meant "lib%.so" in the second case,

um ... yeah.  oops.

> then either one.  That's assuming that you actually have shared
> libraries: obviously this won't find any static libraries.

i would have *guessed* that that's the way "vpath" worked with
libraries, but i was just being careful as section 4.5.6 of the online
make manual doesn't actually come right out and *say* it.  it kind of
leaves you to guess what the right pattern is, and having a real
example there probably wouldn't hurt.

rday