Re: how to use AC_CHECK_LIB without LDFLAGS?

[Braden McDaniel]

Harald Dunkel wrote:
> I am new to autoconf and automake, so please excuse if you
> heard this too often.
>
>
> My question is: How can I use AC_CHECK_LIB without setting
> a global LDFLAGS?

Yes; but of course, then the compiler's defaults will be used. 
Presumably that's not what you want either.

> Using automake I can specify linker flags per program, e.g.
>
> foo_LDFLAGS = -L/somepath/mylibs1
> bar_LDFLAGS = -L/someotherpath/mylibs2
>
> But since AC_CHECK_LIB does not allow me to specify linker
> flags for the test program except by setting LDFLAGS (AFAIK),
> a broken search path for either foo or bar sneaks into my
> generated Makefile :-(.

I don't fully understand the problem you're describing; but perhaps you 
want to do something like this:

save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -Lwhatever"
AC_CHECK_LIB(...)
LDFLAGS="$save_LDFLAGS"

Braden