source: rtems/make/host.cfg.in @ 5d18fb0

4.104.114.84.95
Last change on this file since 5d18fb0 was 98100d2, checked in by Joel Sherrill <joel.sherrill@…>, on Jun 27, 1998 at 5:09:47 PM

Monstrous patch from Ralf Corsepius <corsepiu@…>. I have
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  • custom/p4000.cfg seems to be out of date and requires to be reviewed.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 i3456?86-unknown-freebsd2.12? with i3456?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.
  • Property mode set to 100644
File size: 1.5 KB
Line 
1#
2#  $Id$
3#
4# OS-specific configuration
5#
6# Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de) 97/11/08
7#
8# Derived from rtems/c/make/os/*.cfg in previous RTEMS version.
9#
10
11RTEMS_HOST = @RTEMS_HOST@
12
13#
14# Stuff to clean and clobber for the OS
15#
16
17CLEAN_OS =
18CLOBBER_OS = *~ *.bak TAGS tags
19
20SHELL=/bin/sh
21ECHO=echo
22
23CAT=@CAT@
24RM=@RM@ -f
25CP=@CP@
26MV=@MV@
27LN=@LN@
28MKDIR=@MKDIR@
29CHMOD=@CHMOD@
30SED=@SED@
31M4=@M4@
32
33INSTALL=$(PROJECT_TOOLS)/install-if-change
34INSTALL_VARIANT=$(PROJECT_TOOLS)/install-if-change -V "$(LIB_VARIANT)"
35
36FGREP=@FGREP@
37GREP=@GREP@
38EGREP=@EGREP@
39
40# FIXME: HACK for a bug in cygwin-hosted egcs which returns a mixture
41#        of '\\' and '/' as path separators.
42#        Should be removed as soon as this bug is fixed in egcs.
43GCCSED = @GCCSED@
44
45# ksh (or bash) is used by some shell scripts; ref build-tools/scripts/Makefile
46#
47#  Must have shell functions.  Some ksh's core dump mysteriously and
48#  unreliably on RTEMS shell scripts.  bash appears to be the most
49#  reliable but late model ksh's are usually OK.
50KSH=@KSH@
51
52#
53# RCS support
54#
55RCS_CLEAN=$(PROJECT_TOOLS)/rcs-clean
56
57#
58#  Rule to install a shell script with the proper shell to run it.
59#
60
61# when debugging, one may want to save the previous incarnation of the
62# installed script.  Replace the first line of this rule to do this.
63#
64#       -$(RM) $@.old
65#       -$(MV) $@ $@.old >/dev/null 2>&1
66
67define make-script
68        -$(RM) $@
69        $(SED) -e '1,1s?^#!KSHELL?#!$(KSH)?' \
70               -e '1,1s?^#!SHELL?#!$(SHELL)?' < $< > $@
71        $(CHMOD) 0555 $@
72endef
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