On Sat, Feb 07, 2009 at 02:44:24PM +0100, Simon Josefsson wrote:
> Sylvain Beucler <b...@beuc.net> writes:
> > On Fri, Feb 06, 2009 at 11:49:51PM +0100, Simon Josefsson wrote:
> >> Sylvain Beucler <b...@beuc.net> writes:
> >>
> >> > The AC_LIB_HAVE_LINKFLAGS macro generates options like
> >> > "--with-libmylib-prefix".
> >>
> >> Note that it also generate options like --with-libmylib.
> >>
> >> The --with-libmylib-prefix is there to allow users to set the path to
> >> where mylib will be found.
> >>
> >> The --without-libmylib-prefix is there to allow users to disable
> >> automatic searching for mylib in $prefix.
> >>
> >> This is somewhat surprising, but it is useful once you know it. Read
> >> the docstrings for the parameters carefully.
> >>
> >> > It sounds a bit unclear to specify options such as
> >> > --without-libmylib-prefix to disable "mylib" (i.e. it sounds like
> >> > we're disabling mylib's *additional prefix* only, "--without-mylib"
> >> > would be more straightforward).
> >>
> >> It actually works as you think it should work, I believe. Use
> >> --without-mylib to disable mylib.
> >
> > Hmmm, true.
> >
> > I got confused because `./configure --help` documents
> > '--with-libmylib-prefix', but doesn't mention '--with-mylib'.
> >
> > Is this a bug?
>
> It seems to work here:
>
> --with-libgcrypt Use Libgcrypt for crypto
> --with-openssl Use OpenSSL for crypto
> --with-libz Use Libz for compression
> --with-gnu-ld assume the C compiler uses GNU ld default=no
> --with-libssl-prefix[=DIR] search for libssl in DIR/include and DIR/lib
> --without-libssl-prefix don't search for libssl in includedir and libdir
> --with-libgcrypt-prefix[=DIR] search for libgcrypt in DIR/include and
> DIR/lib
> --without-libgcrypt-prefix don't search for libgcrypt in includedir and
> libdir
> --with-libz-prefix[=DIR] search for libz in DIR/include and DIR/lib
> --without-libz-prefix don't search for libz in includedir and libdir
>
> The ordering isn't perfect though, but it is still there.
I'm working upon GNUpdf's configure.ac:
AC_LIB_HAVE_LINKFLAGS(
[jbig2dec], dnl lib name
[], dnl no dependencies
[], dnl not checking <jbig.h> because it requires <stdint.h>
dnl (for uint8_t) from Gnulib which isn't built yet
dnl code to test linking:
[extern void* jbig2_ctx_new(); void* t = jbig2_ctx_new;]
)
(initial configure.ac is:)
http://bzr.savannah.gnu.org/lh/pdf/libgnupdf/branches/trunk/annotate/head:/configure.ac
It doesn't seem to work the same, --with-jbig2dec is missing:
$ ./configure --help | grep with
--enable-coverage Compile the library with code coverage support
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
--without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)
--with-pic try to use only PIC/non-PIC objects [default=use
--with-gnu-ld assume the C compiler uses GNU ld [default=no]
--with-zlib=DIR root directory path of zlib installation defaults to
--without-zlib to disable zlib usage completely
--with-gnu-ld assume the C compiler uses GNU ld default=no
--with-libjbig2dec-prefix[=DIR] search for libjbig2dec in DIR/include and
DIR/lib
--without-libjbig2dec-prefix don't search for libjbig2dec in includedir
and libdir
--with-libgcrypt-prefix=PFX
I refreshed gnulib yesterday and today - i.e. not using an old version
:)
--
Sylvain
