them, based on either an existing Makefile or on searching for gcc
in PATH. Substitute for CC and CXX in Makefile.
* configure.in: Remove libm from target_libs. Separate
target_configdirs from configdirs. If CC is not set in
environment, try to get it from a host Makefile fragment. Rewrite
changes of configdirs to use skipdirs instead. A few minor
tweaks. Take directories out of target_configdirs as they are
taken out of configdirs. Remove existing Makefile files from
subdirectories. Substitute for TARGET_CONFIGDIRS and
CONFIG_ARGUMENTS in Makefile.
* Makefile.in (TARGET_CONFIGDIRS): New variable, automatically set
by configure.in.
(CONFIG_ARGUMENTS): Likewise.
(CONFIGURE_TARGET_MODULES): New variable.
($(DO_X)): Loop over TARGET_CONFIGDIRS as well as SUBDIRS.
($(CONFIGURE_TARGET_MODULES)): New target.
(configure-libg++, configure-libio): New targets.
(all-libg++): Depend upon configure-libg++.
(all-libio): Depend upon configure-libio.
(configure-libgloss, all-libgloss): New targets.
(configure-libstdc++): New target.
(all-libstdc++): Depend upon configure-libstdc++.
(configure-librx, all-librx): New targets.
(configure-newlib): New target.
(all-newlib): Depend upon configure-newlib
(configure-xiberty): New target.
(all-xiberty): Depend upon configure-xiberty.
specified target, assume a native build and use the user specified
target as the host alias. Remove SunOS patch suffix removal hack.
* configure.in: Remove SunOS patch suffix removal hack.
* configure: Delete SunOs patch suffix from host_canonical
and build_canonical variables that are prepended to Makefiles.
* configure.in: Add comments to patch suffix removal for easier
maintenance.
case where a directory has a configure.in file but no Makefile.in
more gracefully (with an actual understandable error message, even);
add support for --without (and add this to the usage message); also
explicitly add a --host=${host_alias} to the command line when
config.guess is used
screws nested configures. "unset PWD" is the right answer, except that
Decstation sh doesn't *have* unset.
Note also that the send-pr build will fail if you have PWD in your
environment, because emacs also (foolishly) trusts it.
* configure: just set PWD=`pwd` at the top, since Ultrix sh
doesn't have unset and all success paths (and most error paths)
out set it anyway. (Note: should change all uses of ${PWD=`pwd`}
to just ${PWD} to avoid confusion.)
Tue Sep 15 16:00:54 1992 Ian Lance Taylor (ian@cygnus.com)
* configure: always set $(tooldir) to $(libdir)/$(target_alias),
even for a native compilation.
makefiles depend on config.status to tell if a directory has been
reconfigured for a different host. This change prevents those
directories from remaking everything in the case where the reconfig
was only intended to rebuild a Makefile.
like 'configdirs', except that configure doesn't re-invoke
itself for subdirs, it just creates a Makefile for each subdir.
* configure.texi: Document subdirs.
