-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Bruno Haible wrote: > Hi, > > Micah Cowan asked: >> If I've --import'ed md5, is there a means for me to specify in >> configure.ac that it should not be included in certain circumstances? > > Depending on what you want, there are different answers: > > 1) If it's ok to build the module even though it does not get used - > this is usually the case if you build libgnu.a as a static library > and it is not installed, only used to link an executable - then > simply leave the module in the list.
For some reason, I totally blanked out on the fact that just because it's compiled, doesn't mean it'll be included in the binary. > 2) If the condition when to use the module is a simple one that can be > determined at configure time, you can put all code that is subject to > the same condition into a library that is built conditionally. Call > this library, say, libwcrypt. Then you will have two gnulib-tool > invocations, one for libgnu, one for libwcrypt. They have to have > their sources in different directories (a limitation of gnulib-tool). > I.e. you will have two directories 'gl' and 'wcrypt', and your Makefile.am > will contain this: > > if ENABLE_LIBWCRYPT > SUBDIR_wcrypt = wcrypt > else > SUBDIR_wcrypt = > endif > SUBDIRS = gl $(SUBDIR_wcrypt) src doc po ... > > Such declarations will prevent "make" from recursing into wcrypt. > But this poses problems when doing "make dist", therefore an alternative > way to do it is to always recurse into the subdirectory: > > SUBDIRS = gl wcrypt src doc po ... > > wcrypt/Makefile.am: > if ENABLE_LIBWCRYPT > noinst_LIBRARIES = libwcrypt.a > else > noinst_LIBRARIES = > endif > # use gnulib-tool option --makefile-name=Makefile.gnulib > include Makefile.gnulib What a great suggestion. I'll probably just leave it in libgnu.a (#1), but this could be very useful for the future. Thanks! - -- Micah J. Cowan Programmer, musician, typesetting enthusiast, gamer... http://micah.cowan.name/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHEtVl7M8hyUobTrERCAaIAJ4oZMcSFyPSmF2fra+pRAVpvoGuywCfVMCm PZ7IECjTZFUK2GxeYEks1tM= =qPJg -----END PGP SIGNATURE-----
