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scripts/scripts.mk
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jan 03 22:57:25 2012 +0100 (2012-01-03)
changeset 2936 2dfea349d307
parent 1618 7f52e1cca71e
permissions -rw-r--r--
cc/gcc: build core compilers for canadian

Currently, we rely on an existing external cross-compiler targetting
the target, to build the C library.

This can pause quite a few problems if that compiler is different from
the one we are building, because it could introduce some ABI issues.

This patch removes this dependency, by building the core compilers
as we do for standard cross, and also by building the binutils and
gcc, for running on the build machine.

This means we no longer need to offer the cross-sompiler selection in
the menuconfig.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 # Makefile for the scripts/ sub-directory

     2 

     3 # Here, we can update the config.* scripts.

     4 # If we're in CT_LIB_DIR, then CT_LIB_DIR == CT_TOP_DIR, and we can update those

     5 # scripts for later inclusion mainline. If CT_LIB_DIR != CT_TOP_DIR, then those

     6 # scripts are downloaded only for use in CT_TOP_DIR.

     7 

     8 # ----------------------------------------------------------

     9 # The tools help entry

    10 

    11 help-distrib::

    12 	@echo  '  updatetools        - Update the config tools'

    13 

    14 # ----------------------------------------------------------

    15 # Where to get tools from, and where to store them into

    16 # The tools are: config.guess and config.sub

    17 

    18 CONFIG_SUB_SRC="http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD"

    19 CONFIG_SUB_DEST=scripts/config.sub

    20 CONFIG_GUESS_SRC="http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD"

    21 CONFIG_GUESS_DEST=scripts/config.guess

    22 

    23 PHONY += updatetools

    24 updatetools: $(CONFIG_SUB_DEST) $(CONFIG_GUESS_DEST)

    25 

    26 # ----------------------------------------------------------

    27 # How to retrieve the tools

    28 

    29 wget_opt=-o /dev/null

    30 ifeq ($(strip $(V)),2)

    31   wget_opt=

    32 endif

    33 

    34 PHONY += scripts

    35 scripts:

    36 	@$(ECHO) '  MKDIR $@'

    37 	$(SILENT)mkdir -p $@

    38 

    39 $(CONFIG_SUB_DEST): scripts FORCE

    40 	@$(ECHO) '  WGET  $@'

    41 	$(SILENT)wget $(wget_opt) -O $@ $(CONFIG_SUB_SRC)

    42 	$(SILENT)chmod u+rwx,go+rx-w $@

    43 

    44 $(CONFIG_GUESS_DEST): scripts FORCE

    45 	@$(ECHO) '  WGET  $@'

    46 	$(SILENT)wget $(wget_opt) -O $@ $(CONFIG_GUESS_SRC)

    47 	$(SILENT)chmod u+rwx,go+rx-w $@

    48 

    49 # ----------------------------------------------------------

    50 # Clean up the mess

    51 

    52 distclean::

    53 	@$(ECHO) "  CLEAN scripts"

    54 	$(SILENT)[ $(CT_TOP_DIR) = $(CT_LIB_DIR) ] || rm -rf $(CT_TOP_DIR)/scripts
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