forked from Imagelibrary/rtems
Here is the result of my nightly work to get RTEMS_ROOT=$srcdir working with different shells and relative/absolute paths. What I did is relatively simple in principle: Instead of setting RTEMS_ROOT in configure.in and then let configure substitute @RTEMS_ROOT@ inside the Makefiles, I now let each Makefile set RTEMS_ROOT from each Makefile's @top_srcdir@ value. The difference is subtile, but with enormous side effects: - If RTEMS_ROOT is set in configure, then the same single value will be propagated to all Makefiles. This breaks using relative paths, as the relative path to the root of the source tree is used inside of all subdirectory Makefiles. - Now each Makefile.in sets RTEMS_ROOT = @top_srcdir@. top_srcdir is computed individually by configure for each single Makefile.in, hereby receiving the correct value, no matter if relative or absolute paths are used. To get this working, I needed to remove setting RTEMS_ROOT from target.cfg.in, because this overrides the value of RTEMS_ROOT from each individual Makefile. Furthermore, I removed RTEMS_CUSTOM from the Makefiles and replaced all "include $(RTEMS_CUSTOM)" directives with"include $(RTEMS_ROOT)/make/custom/$(RTEMS_BSP)". Perhaps you don't like this, but I think, to have one variable less is clearer and easier to understand than having several variables refering to the next one. I enclose a small patch to this mail, which - fixes the config.h problem (to finally clearify misunderstands) - removes assignment/subsitution of RTEMS_ROOT from configure.in - contains a workaround for the application Makefile's RTEMS_ROOT problem (reported by Eric) - removes some unused lines from the toplevel Makefile.in - removes assignment of RTEMS_ROOT from make/target.cfg.in
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Misc. support tools for RTEMS workspaces.
More will be added later as they are converted from Teamware
to CVS.
install-if-change
Smart install script that also can append suffixes as it
installs (suffixes used for debug and profile variants).
Requires bash or ksh.
rcs-clean
deletes all files from the current directory that can be
re-created from RCS. Careful to not delete locked files.
May be used by 'gmake clobber'
lock-directory
unlock-directory
traverse a directory structure making it unwritable.
Useful to keep people from accidentally overwriting
"released" trees if they get confused about which
module they have loaded.
rtems-glom
glom together all the rtems libraries in order to simplify
the link line used by applications.
Produces rtems.rel.
Not used by the RTEMS src tree at all.
Strictly optional.