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f8f9d371ff
Logging of implicit rule search gives limited information as to why a given implicit rule was rejected, and if no implicit rule is found we get the confusing "No rule to make target" result when the real issue is that some prerequisite of some implicit rule could not be built. Enhance logging around implicit rule search as follows: 1. The messages which refer to a rule print a description (the targets and prerequisites) of the rule. 2. A new message tells when a rule is rejected, along with the reason. 3. The 'Looking for an implicit rule...' message is printed for every prerequisite, not just the top-level target. 4. "Trying harder" message is printed, when intermediate prerequisites are going to be searched. 5. The 'No rule found...' and 'Found implicit rule...' messages are printed for every prerequisite, not just the top-level target. 6. "Ought to exist...", "Found..." or "Not found..." message is printed for each prerequisite. * src/rule.h (struct rule): Remember the definition of the rule. * src/rule.c (get_rule_defn): Compute the definition of a rule. (install_pattern_rule): Initialize the definition to empty. (create_pattern_rule): Ditto. (freerule): Free the definition. (print_rule): Use the definition when printing rules. * src/remake.c (update_file_1): Push debug output down into try_implicit_rule(). * src/implicit.c (try_implicit_rule): Add debugging (pattern_search): Show the rule definition in various debug output. Add new debug messages for implicit rule search. Additional changes by Paul Smith <psmith@gnu.org>: Since we usually don't need the rule definition, defer computing it until we do. * bootstrap.conf: Include the mempcpy Gnulib module. * src/makeint.h (mempcpy): Declare mempcpy if not available. * src/misc.c (mempcpy): Define mempcpy if not available. * src/config.h-vms.template: Don't set HAVE_MEMPCPY. * src/config.h.W32.template: Ditto. * src/rule.h (get_rule_defn): Return the definition of a rule. * src/rule.c (get_rule_defn): If we don't have a definition compute it; either way return it. * src/implicit.c (pattern_search): Rework the handling of explicit prerequisites to pattern rules to be more clear. There is no change in behavior.
54 lines
1.6 KiB
Bash
54 lines
1.6 KiB
Bash
# Bootstrap configuration. -*-shell-script-*-
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# Copyright (C) 2018-2020 Free Software Foundation, Inc.
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# GNU Make is free software: you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free
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# Software Foundation; either version 3 of the License, or (at your option)
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# any later version.
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# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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# You should have received a copy of the GNU General Public License along with
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# this program. If not, see <https://www.gnu.org/licenses/>.
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# Allow bootstrap to know that this is not a package
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checkout_only_file=README.git
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# Additional xgettext options to use. Use "\\\newline" to break lines.
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# Ensure that all our magical output macros are correctly marked as
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# C (printf) format strings.
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XGETTEXT_OPTIONS='\\\
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--from-code=UTF-8\\\
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--flag=_:1:pass-c-format\\\
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--flag=N_:1:pass-c-format\\\
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--flag=DB:2:c-format --flag=DBF:2:c-format --flag=DBS:2:c-format\\\
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--flag=O:3:c-format --flag=OSN:3:c-format --flag=ONS:3:c-format\\\
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--flag=OS:3:c-format --flag=OSS:3:c-format --flag=OSSS:3:c-format\\\
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--flag=ON:3:c-format --flag=ONN:3:c-format\\\
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'
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# We manage our own .gitignore files
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vc_ignore=
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# Build prerequisites
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buildreq="\
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autoconf 2.69
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automake 1.16.1
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"
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gnulib_name=libgnu
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gnulib_files=doc/make-stds.texi
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gnulib_modules="\
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alloca
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fdl
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findprog-in
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getloadavg
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host-cpu-c-abi
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mempcpy
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strerror
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make-glob"
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