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This patch should fix the nastiest configuration bugs for no_cpu/no_bsp.
With this patch applied, configure --target=no_cpu-rtems now correctly
acknowledges its configuration, but later fails building when trying to
build libcsupport (I leave this problem for you :-).
Fixes/Changes:
* aclocal/canonicalize-target-name.m4: use RTEMS_CPU instead of
target_cpu, switch to a native compiler setup if target = no_cpu*rtems,
ie. implicitly use host=target (native) and RTEMS_CPU=no_cpu for
--target=no_cpu*rtems.
* add no_bsp/bsp_specs (Support -qrtems, -qrtems_debug; please check
before adding :-)
* Use RTEMS_CANONICALIZE_TARGET_CPU instead of AC_CANONICAL_SYSTEM in
toplevel/configure.in
* All references to $target_cpu in aclocal/*.m4, Makefile.ins and *.cfg
files changed to RTEMS_CPU
* bug fixes to exec/score/cpu/no_cpu/wrap (This part of the patch may
result into patch rejections, because your recently posted patch may
also have addressed this problem).
After applying this patch, please do:
cvs add c/src/lib/libbsp/no_cpu/no_bsp/bsp_specs
./autogen
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This patch fixes a nasty problem with build-tools/Makefile.am:
When using install-sh instead of /usr/bin/install, only the first file
gets installed during the preinstall stage.
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the build-tools layout to simplify it.
This script reorganizes and simpilfies the build-tools subdirectories.
It moves all source-files and scripts to c/build-tools/. This will
enable use to use this directory directly to refer to the build-tools
instead of copying them around in a "preinstall" step in future.
However, RTEMS's autoconf Makefile.ins and *.cfg files are not yet
prepared to apply this approach and therefore require additional work.
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This one is an enhancement to acpolish.
It replaces some Makefile variables by others variable in Makefile.ins
(tries to use unique name for some variables). It therefore eases
parsing Makefile.ins for further automatic Makefile.in conversions in
future.
To apply:
cd <rtems-source-tree>
sh <path-to>/rtems-rc-19990407-8.sh
./autogen
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FYI: I am not talking about using "make -C <dir>", which probably
is much faster on M$ hosts than RTEMS's implementation, but about
removing --enable-gmake-print support and to apply a variant of
automake's subdirectory.
Automake's subdirectory rule seems to be a little bit faster, but I
wouldn't bet on this.
Attached to this mail is my proposal.
After applying the patch, please run
cvs rm aclocal/enable-gmake-print.m4
./autogen
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This patch addresses a few minor issues and contains a few (minor)
preparations for automake.
* configure.in: Fix for handing c/src/tests subdirectory handling (FIX)
* aclocal/rtems-top.m4:
+ Add TARGET_SUBDIR and --with-target-subdir (preparation of future
enhancements for cross-compiling)
+ Activate RTEMS_ROOT handling (automake preparation)
* automake/*.am: replace comments "#" with "##" so that comments won't
get included into Makefile.in's anymore
* c/update-tools/* automake support (NEW)
* ./autogen update/enhancement (cf. ./autogen for details)
After applying this patch please run:
./autogen
cvs add c/update-tools/configure.in
cvs add c/update-tools/Makefile.am
cvs add c/update-tools/aclocal.m4
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Yet some more modifications, I would recommend to be considered before
releasing a snapshot:
1. Cleanup to aclocal/
cvs rm -f aclocal/cygwin.m4
cvs rm -f aclocal/exeext.m4
They are neither used nor needed anymore, however they also don't
disturb (we use autoconf-2.13's AC_EXEEXT instead, now)
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2. rtems-rc-19990328-0.diff
Some (minor) bug-fixes:
* make/Templates/Makefile.inc.in: use the new installation directory
($(prefix)/ instead of $(prefix)/rtems/)
* c/src/exec/score/tools/generic/Makefile.am: added line to include local.am
* c/src/exec/score/tools/*/configure.in: added CVS Id header
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3. rtems-rc-19990328-1.diff
Enhancements and cleanups to autogen, rtems-polish.sh, configure.in etc.
* autogen: Use the file "VERSION" to detect RTEMS toplevel directory,
extended usage-message, use "find -print"
* c/update-tools/cipolish: New script to beautify configure.in scripts
* c/update-tools/rtems-polish.sh: Use the file "VERSION" to detect RTEMS
toplevel directory, extended usage-message, added variable for perl
scripts' subdirectory, use "find -print", cipolish support, new options
-ac -am -ci.
* aclocal/*.m4, configure.in: moved some AC_SUBST lines to aclocal/*.m4
(reduces size of configure.in
scripts, eases splitting configure.in scripts).
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problem.
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Ralf Corsepius <corsepiu@faw.uni-ulm.de>.
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description follows:
Description:
* automake for *all* tool subdirectories (Makefile.am, configure.in etc.)
* autogen now also considers CONFIG_HEADER (generates stamp-h.ins and
config.h.ins)
* c/src/tests/tools/generic/difftest and
c/src/tests/tools/generic/sorttimes generated by configure scripts
* c/update-tools/ampolish, beautifier for Makefile.ams, similar to
acpolish
* rtems-polish.sh added to c/update-tools/ + ampolish support
* New subdirectory ./automake, contains automake -Makefile fragments to
support RTEMS make "debug, debug_install, profile, profile_install" for
native Makefile.ams (== ignore these make targets).
* aclocal/rtems-top.m4's RTEMS_TOP now reads the automake makefile
variable VERSION from RTEMS ./VERSION file.
* ./configure.in uses the macros from aclocal + support for the tools'
configure scripts
Remarks:
* To run rtems-polish.sh, "cd <rtems-source-tree>;
./c/update-tools/rtems-polish.sh"
* AFAIS, now all native subdirectories are converted to automake (Please
drop me a note, if I forgot something).
* Unless you notice something fatal, IMO the time has come for a public
try (== snapshot). I do not intend to send more automake related patches
within, say 2 weeks, to give these patches time to settle and to give me
some time to think on how to continue.
* The patch assumes installation to the new main installation directory
[$(prefix)].
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This is the first real automake patch.
It adds automake support to c/build-tools and cleans up a few minor
issues.
I consider this to be a testing probe to examine problems with automake.
Therefore, this patch is just a more or less harmless replacement of the
former RTEMS Makefiles and I expect it not last for long. If you want to
give automake Makefiles a public try and if you want/need to learn about
problems with it, then it's about time for a new snapshot, IMO. I may
have screwed up something not directly related to automake, but I expect
very few (none to be precise) problems with automake. However, somebody
should at least try building on Cygwin. If you feel a bit more
adventureous, then I also can continue to submit more patches.
[FYI: I still have a couple of automake files laying around, but they
need some cleanup before being submitted as patches. Now, that I am just
into it, I'll perhaps submit another one tonight :-]
After applying this patch (patch -p1 -E <
<path-to>/rtems-rc-19990318-0), first run the "autogen" script from the
toplevel source directory, before committing to CVS. Be careful about
dependencies between Makefile.am and Makefile.ins when cutting tarballs
from CVS. Makefile.ins are required to be newer than Makefile.ams,
otherwise users would need to have automake, autoconf and perl. Some
people recommend to "touch" all Makefile.in after checkout from cvs (cf.
egcs/contrib/egcs_update).
ATTENTION:
* This patch adds a number of new files.
* remove aclocal/exeext.m4 and aclocal/cygwin.m4 from CVS, They are now
covered by autoconf-2.13`s AC_EXEEXT.
Some features/side-effects which are probably interesting for you:
In a configured build-tree "cd c/build-tools", then try
* "make RTEMS_BSP=<bsp> install"
* "make RTEMS_BSP=<bsp> dist"
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This patch is the most scary of all proposals I've been mailing to you
this week until now.
It consists of 3 parts:
1. a patch
2. a perl script (acpolish)
3. a shell script wrapper to invoke the perl-script.
The perl-script reads in each Makefile.in and modifies them
("polishes/beautifies" them :-).
These modifications are not easy to describe:
Basically, it hard-codes some automake Makefile-variables and rules into
RTEMS autoconf-Makefile.ins (Note: autoconf vs. automake!!) and converts
some settings/variables to configure scripts' requirements (Yes,
plural).
E.g. it adds the automake standard variables $top_builddir and $subdir,
adds dependency rules for automatic re-generation of Makefiles from
Makefile.in, adds support variables for relative paths to multiple
configure scripts etc.
The patch is a one-line patch to enable the support of the new features
added by acpolish.
The shell script is a wrapper which pokes around inside of the source
tree for Makefile.ins and invokes acpolish on all autoconf-Makefile.ins.
acpolish is designed to be able to run several times on the same
Makefile.in and may once become a more general tool to convert RTEMS
Makefile.in to automake. Therefore, I'd like to keep it inside of source
tree. (e.g. as contrib/acpolish or c/update-tools/acpolish). However, it
doesn't make sense to export it outside of RTEMS.
To apply this:
cd <source-tree>
patch -p1 -E < <path-to-patch>/rtems-rc-19990318-1.diff
tar xzvf <path-to>/rtems-rc-polish.tar.gz
./rtems-polish.sh
./autogen
Note: The path contrib/acpolish is hard-coded into rtems-polish.sh, if
you decide to put it in an alternative place, please modify
rtems-polish.sh to reflect this change.
Later:
cvs rm make/rtems.cfg (It isn't used anymore)
cvs add contrib
cvs add contrib/acpolish
cvs commit
I've tested this intensively, but naturally I can't exclude bugs.
Ralf.
PS.: Most probably, this is the last "Towards automake" patch. The next
one probably will be a real automake patch.
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> 5) rtems-rc-19990202-1.diff/reorg-install.sh
>
> reorg-install.sh fixes a Makefile variable name clash of RTEMS
> configuration files and automake/autoconf standards.
> Until now, RTEMS used $(INSTALL) for install-if-change. Automake and
> autoconf use $(INSTALL) for a bsd-compatible install. As
> install-if-change and bsd-install are not compatible, I renamed all
> references to install-if-changed to $(INSTALL_CHANGED) and used
> $(INSTALL) for bsd-install (==automake/autoconf standard). When
> automake will be introduced install-if-change will probably be replaced
> by $(INSTALL) and therefore will slowly vanish. For the moment, this
> patch fixes a very nasty problem which prevents adding any automake file
> until now (There are still more).
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Some Makefile.ins depend on gcc by hard-coded gcc-specific compiler
flags:
-g added to CFLAGS /LDFLAGS in
> find . -name Makefile.in -exec grep -l ' \-g' {} \;
./c/src/lib/libbsp/i386/i386ex/startup/Makefile.in
./c/src/lib/libbsp/i386/pc386/tools/Makefile.in
-Wall added CFLAGS in
> find . -name Makefile.in -exec grep -l ' \-Wall' {} \;
./c/src/exec/score/tools/sh/Makefile.in
./c/src/lib/libbsp/i386/pc386/tools/Makefile.in
Both -g and -Wall should not be used in any Makefile.in (Yes, I know,
tools/sh/Makefile.in was written by me :-).
I'd like to propose to remove these flags from the files mentioned
above.
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it work.
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1. Rtems contains some perl scripts that use hard-coded paths to
/usr/bin/perl or /usr/local/bin/perl I have already fixed these
problems by adding some checks to configure.in. While doing this,
I also cleaned up some more autoconf related problems for generating
shell scripts. This patch might seem a bit scary to you, but I am
quite confident it won't break something (I've been testing it for
almost a week now, however it might introduce typos for a limited
number configurations I don't have access to - But it shouldn't be
a problem for you to test them :-).
I expect to get this finished tonight, hence you will very likely
have the patch when you get up tomorrow.
Changes:
* Check for PERL and disable all PERL scripts if perl wasn't found.
* Generate all KSHELL-scripts with autoconf instead of make-script
* Automatic dependency handling for autoconf generated KSHELL or PERL
scripts (make/rtems.cfg)
Notes:
* this patch contains new files and deletes some other files.
* The patch is relative to rtems-4.0.0-beta4 with my previous
rtems-rc-981014-1.diff patch applied.
Testing:
I tested it with sh-rtems and posix under linux. Now all targets
which are touched by this patch and which are not used while building
for sh-rtems and posix still need to be tested. AFAIS, only the
sparc/erc32 BSP should be affected by this criterion. And if you
like to, you should also consider testing it on a Cygwin32 and a
Solaris host for one arbitrary BSP.
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make solaris target buildable.
> 1. The ipc check fails since solaris does not define union semun.
> The unix port code actually defines this type itself on solaris. Doing
> the same thing lets it get configured. Then...
> 2. It looks like BSDINSTALL is not defined properly.
BSDINSTALL is defined in make/host.cfg.in as
BSDINSTALL=@INSTALL@
@INSTALL@ is generated by autoconf's standard macro AC_PROG_INSTALL, which
is widely used in almost any autoconf/automake configured package. In case
there is really something wrong with it, then it must be considered a bug
in autoconf.
I can see a doubious fragment in AC_PROG_INSTALL, which is used when no
appropriate bsd-install is found.
Finally Ralf saw a problem with the find on solaris which I also saw and
fixed.
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* Added support for bsd "install" ($(BSDINSTALL)) to host.cfg.in, i.e.
the standard "install" program that most packages (including automake)
use. In Makefiles outside of rtems, "install" normally is referenced by
$(INSTALL), but rtems already uses $(INSTALL) for install-if-change,
hence I used $(BSDINSTALL) instead to keep up backward compatibility.
* Removed references to @GREP@ etc. from host.cfg.in, as configure.in
doesn't check for them (Minor cleanup).
* Added installation flags INST*FLAGS to host.cfg.in, which should
replace -m XXXX flags for installation calls.
*Changes to gcc.cfg to enable it to build host programs from multiple
sources files.
Should not disturb existing sources, but neccessary.
* There was a not-so-minor bug in the configuration files: "make
install" and "make debug_install" don't work in all subdirectories!! I
tried to fix this by adding "install" to MTARGETS in main.cfg, which
seems to solve most of the problems. But there still seem to be rare (?)
cases where "make debug_install" still seems to have problems.
* Changes to many host related tool-Makefiles to demonstrate the
abilities of INST*FLAGS, BSDINSTALL and the new rules in gcc.cfg.
..of cause ... but BSDINSTALL is THE standard method to install files
in most program packages besides rtems. This part of the patch fixes
some minor protection setting problems, but doesn't support
TARGET_VARIANTS
NOTE:
I hope you will like the BSDINSTALL, INST*FLAGS stuff. It is a step to
get rid of "install-if-change" and to rely on a more standard
installation procedure. If you don't like BSDINSTALL, removing it from
the patch isn't difficult- just grep for BSDINSTALL and replace
BSDINSTALL with INSTALL or MKDIR.
FINALLY:
I still have another patch pending (well, not a complete patch yet, it's
a partial patch to demonstrate the principle), which adds automatic
rebuilding of files generated by autoconf/configure. At the moment I
don't dare to submit it, because integrating this patch would require to
modify all Makefile.ins because we'd need to add a new "include " line
to each Makefile.in.
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* c/src/exec/score/tools/sh - NEW DIRECTORY - contains shgen
Most of it should be self-explanatory. I am a little bit concerned about
host-dependent features (getopt, floating point libraries). This
shouldn't disturb much now, as this tool should be compileable on all
gnu-based hosts and is only applicable for the sh. But in case somebody
complains, we may need to add autoconf checks or even restructurize
parts of rtems (IMO, rtems needs to be restructurized - remember the
"turning rtems upside down" issue).
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<qqi@world.std.com>). Unfortunately after merging these,
the pc386 will not boot using grub for for. It still does not
work using netboot for me. Here is his summary of changes:
rtems/c/src/lib/libbsp/i386/pc386/Makefile.in
Added support for new sub-directory
rtems/c/src/lib/libbsp/i386/pc386/bsp_specs
Made possible to build COFF image
rtems/c/src/lib/libbsp/i386/pc386/console/console.c
Added support for serial consoles, selectable by patching
binary image, added __assert(), use _IBMPC_inch_sleep()
instaed of _IMBPC_inch()
rtems/c/src/lib/libbsp/i386/pc386/console/inch.c
Added _IMBPC_inch_sleep()
rtems/c/src/lib/libbsp/i386/pc386/console/outch.c
Oops - just formatting
rtems/c/src/lib/libbsp/i386/pc386/include/Makefile.in
Added support for new files
rtems/c/src/lib/libbsp/i386/pc386/include/bsp.h
Added support for new features
rtems/c/src/lib/libbsp/i386/pc386/include/pc386uart.h
New file: definitions for serial ports
rtems/c/src/lib/libbsp/i386/pc386/include/pcibios.h
New file: definitions for PCI BIOS
rtems/c/src/lib/libbsp/i386/pc386/pc386dev/Makefile.in
New file: makefile in new directory
rtems/c/src/lib/libbsp/i386/pc386/pc386dev/i386-stub-glue.c
New file: i386-stub interface
rtems/c/src/lib/libbsp/i386/pc386/pc386dev/i386-stub.c
New file: i386-stub itself
rtems/c/src/lib/libbsp/i386/pc386/pc386dev/pc386uart.c
New file: serial ports
rtems/c/src/lib/libbsp/i386/pc386/pc386dev/pcibios.c
New file: PCI BIOS support
rtems/c/src/lib/libbsp/i386/pc386/start/start.s
Commented out DEBUG_EARLY stuff, everything is working fine
rtems/c/src/lib/libbsp/i386/pc386/start/start16.s
Cleaned up
rtems/c/src/lib/libbsp/i386/pc386/startup/bspstart.c
Added call to console_resereve_resources
rtems/c/src/lib/libbsp/i386/pc386/startup/exit.c
Added support for serial console
rtems/c/src/lib/libbsp/i386/pc386/startup/ldsegs.s
Fixed typo in comments
rtems/c/src/lib/libbsp/i386/pc386/tools/Makefile.in
Changed to reflect cnages in code
rtems/c/src/lib/libbsp/i386/pc386/tools/bin2boot.c
Trivialized, problem - I do not know how to make patch
remove obsolete files - there are a lot of them there
rtems/c/src/lib/libbsp/i386/pc386/tools/binpatch.c
New file: utility to do binary patches
rtems/c/src/lib/libbsp/i386/pc386/wrapup/Makefile.in
Added support for new directory
rtems/make/custom/pc386.cfg
Add COFF image building
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made no attempt to divide the comments up and place them with just
the appropriate files. Here is an excerpt from Ralf's email:
Changes including comments on changes I made after cycling through
all the targets:
* Added ranlib support. Now all targets use "ranlib" instead of "ar -s"
to build an index for a library. If ranlib isn't detected during
configuration, check if ar -s is working and try "ar -s" instead of
* Removed $(XXX_FOR_TARGET) from make/target.cfg.in, use $(XXX) instead now.
* gcc-target-default.cfg: LINK_XXXX-defines reworked to solve the -l
problem under posix (cf gcc-target-default.cfg)
* rtems-glom replaced by Makefile-rules inside of the wrapup/Makefile.in
that has been using rtems-glom until now.
* Removed CCC and friends in gcc-target-default.cfg, as they have been
breaking CXX support.
* Removed CONFIG.$(TARGET_ARCH).CC lines from several custom/*.cfg
files, because this is now set in custom/default.cfg.
* Added aclocal/ar-s.m4, check whether "ar -s" is working
* Added aclocal/cygwin.m4 and aclocal/exeext.m4.
* Reworked aclocal/canonicalize-tools.m4: Added ar -s check; fixes for
problems when XXX_FOR_TARGET is given via environment variables (didn't
work for gcc until now), adding cygwin check, improved autoconf-cache
handling.
* Removed -l from make rule dependencies. LINK_LIBS is now allowed to
contain -L and -l. LINK_OBJS and LINK_FILES must not contain -L or -l.
gcc28 make-exe rules now link using $(LINK_OBJS) $(LINK_LIBS) => Almost
all custom/*.cfg are modified. This is very likely to break something
because of typos or having missed to edit a file.
Open problems, known bugs, things I didn't do:
* custom/p4000.cfg seems to be out of date and requires to be reviewed.
(JRS NOTE: It is subordinate p4650 and p4600 -- both of which build ok
after minor changes.)
* custom/psim.cfg needs to be reviewed, I added some changes to it, I am
insecure about.
(JRS NOTE: psim had a minor problem endif/endef swapped but runs fine.)
* rtems-glom.in can now be removed.
* gcc*.cfg files "make depend" rules don't honor language specific flags
(e.g CXXFLAGS is ignored for *.cc) - Nothing to worry about now, but may
cause problems for hosts/targets not using gcc or rtems-add-ons that use
external packages.
* AFAIS, the no_bsp BSP can't be build anymore, i.e. configure refused
to configure for it whatever I tried.
* The toplevel and toplevel+1 README files are quite out-dated
* cygwin.m4 isn't of much use for rtems. In most cases (cf.
aclocal/*.m4) it is worked around by directly using $host_os. I think
I'll remove it soon after the next snapshot
* Before release the cygwin patch needs to be tested under cygwin. I may
have broken/missed something (esp. the sed-pattern to convert \\ into /
may be broken).
* You should try to build/run the posix-BSP under solaris - I don't
expect problems, but I am not 100% sure, esp. with regard to ranlib/ar -s.
* You should consider to convert all make/compilers/*.cfg files into
make/compilers/*.cfg.in files and let autoconf generate the *.cfg. This
may help getting rid of some if/then/else statements and help
hard-coding some defines into those files in future and shouldn't
disturb now.
* Not having installed libc.a/libm.a on a host may still break building
rtems, esp. when using -disable-gcc28 as the gcc27-configuration scheme
directly accesses libc.a and libm.a. The problem should not appear when
using gcc28 because it references libc/libm only through -lc and -lm
which may be static or dynamic (I didn't test this).
* shgen is not yet included (I didn't yet have enough time to integrate it).
* I know about a few more configure-probs (esp. cross-checking
--enable-* flags).
+ warn/refuse to configure when --enable-libcdir and
--enable-gcc28 are given.
+ force --enable-libcdir when --disable-gcc28 is given
* Replaced KSHELL with @KSH@ in some shell scripts generated by configure.in.
* Added a dependency to aclocal/*.m4 in the toplevel Makefile => configure
and aclocal.m4 will now be rebuild when any aclocal/*.m4 file is changed
* Some changes to aclocal/gcc-pipe.m4 and aclocal/gcc-specs.m4
* Replaced i[[3456]]86-unknown-freebsd2.[[12]] with i[[3456]]86-*freebsd2.*
in configure.in, as I suppose there might exist a variety of valid vendors
(2nd field of the name-tripple)
* Disabled override MAKEFLAGS in toplevel Makefile.in - Potential
side-effects are not really clear to me.
* In mvme162.cfg, $(LINK_LIBS) is missing in the CC line in gcc28's make-exe
rule (yet another one I missed to edit). Just append $(LINK_LIBS) to
the "CC" line, like I hopefully did to ALL other custom/*.cfg files.
* the problem with mvme162lx.cfg is a follow-up problem of the
mvme162.cfg-bug.
* mvme162/console and idp/console had variables named Buffer which
conflicted with similarly named variables in some tests.
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is available and has the code available.
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GNU tool bc which is not always installed under Linux and seldom
present under non-UNIX environments like Win32.
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Here is the result of my nightly work to get RTEMS_ROOT=$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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direction. This fixes a problem reported by Steve Evans of Radstone
since he is using glibc2.
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generated when egcs is used with "-Wall -pedantic".
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