steps.mk
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Dec 22 18:21:51 2008 +0000 (2008-12-22)
changeset 1105 3ba2a43353df
parent 1015 d9a132dcd329
child 1143 eee9e8de51e3
permissions -rw-r--r--
Rationalise ./configure
- borrow a lot of ideas from Michael ABBOTT ( http://sourceware.org/ml/crossgcc/2008-12/msg00030.html )
- should be conforming to POSIX 1003.1-2008, non compliance due to bashsims is to be considered a bug
- as a result, it now works with dash
- make a little easier to read in some places
- enforce 4-space indentation
- get rid of futile 'return $?'
- quote all variables assignments
- save and restore IFS prior to and after using alternate values
- simplify the TOOLS_TO_CHECK listing

What's left:
- provide a mean to actually _compare_ version numbers
- change the TOOLS_TO_CHECK pattern style to be able to use '|' in regexp

/trunk/configure | 243 127 116 0 ++++++++++++++++++++++++++++++++------------------------------
1 file changed, 127 insertions(+), 116 deletions(-)
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# Makefile for each steps
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# Copyright 2006 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>
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# ----------------------------------------------------------
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# This is the steps help entry
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help-build::
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	@echo  '  list-steps         - List all build steps'
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help-env::
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	@echo  '  STOP               - Stop the build just after this step'
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	@echo  '  RESTART            - Restart the build just before this step'
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# ----------------------------------------------------------
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# The steps list
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# Please keep the last line with a '\' and keep the folowing empy line:
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# it helps when diffing and merging.
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CT_STEPS := libc_check_config   \
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            kernel_headers      \
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            gmp                 \
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            mpfr                \
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            binutils            \
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            cc_core_pass_1      \
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            libc_headers        \
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            libc_start_files    \
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            cc_core_pass_2      \
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            libc                \
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            cc                  \
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            libc_finish         \
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            gmp_target          \
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            mpfr_target         \
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            binutils_target     \
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            tools               \
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            debug               \
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# Make the list available to sub-processes (scripts/crosstool.sh needs it)
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export CT_STEPS
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# Print the steps list
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PHONY += list-steps
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list-steps:
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	@echo  'Available build steps, in order:'
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	@for step in $(CT_STEPS); do    \
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	     echo "  - $${step}";       \
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	 done
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	@echo  'Use "<step>" as action to execute only that step.'
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	@echo  'Use "+<step>" as action to execute up to that step.'
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	@echo  'Use "<step>+" as action to execute from that step onward.'
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# ----------------------------------------------------------
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# This part deals with executing steps
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$(CT_STEPS):
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	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) RESTART=$@ STOP=$@ build
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$(patsubst %,+%,$(CT_STEPS)):
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	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) STOP=$(patsubst +%,%,$@) build
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$(patsubst %,%+,$(CT_STEPS)):
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	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) RESTART=$(patsubst %+,%,$@) build