189 lines
5.3 KiB
Coq
189 lines
5.3 KiB
Coq
############################################################################
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# Requirements.
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# We need bash. We use the pipefail option to control the exit code of a
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# pipeline.
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SHELL := /usr/bin/env bash
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############################################################################
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# Configuration
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#
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#
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# This Makefile relies on the following variables:
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# COQBIN (default: empty)
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# COQFLAGS (default: empty) (passed to coqc and coqide, not coqdep)
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# COQINCLUDE (default: empty)
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# V (default: *.v)
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# V_AUX (default: undefined/empty)
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# SERIOUS (default: 1)
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# (if 0, we produce .vio files)
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# (if 1, we produce .vo files in the old way)
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# VERBOSE (default: undefined)
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# (if defined, commands are displayed)
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# We usually refer to the .v files using relative paths (such as Foo.v)
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# but [coqdep -R] produces dependencies that refer to absolute paths
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# (such as /bar/Foo.v). This confuses [make], which does not recognize
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# that these files are the same. As a result, [make] does not respect
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# the dependencies.
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# We fix this by using ABSOLUTE PATHS EVERYWHERE. The paths used in targets,
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# in -R options, etc., must be absolute paths.
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ifndef V
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PWD := $(shell pwd)
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V := $(wildcard $(PWD)/*.v)
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endif
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# Typically, $(V) should list only the .v files that we are ultimately
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# interested in checking. $(V_AUX) should list every other .v file in the
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# project. $(VD) is obtained from $(V) and $(V_AUX), so [make] sees all
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# dependencies and can rebuild files anywhere in the project, if needed, and
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# only if needed.
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ifndef VD
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VD := $(patsubst %.v,%.v.d,$(V) $(V_AUX))
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endif
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VIO := $(patsubst %.v,%.vio,$(V))
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VQ := $(patsubst %.v,%.vq,$(V))
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VO := $(patsubst %.v,%.vo,$(V))
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SERIOUS := 1
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############################################################################
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# Binaries
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COQC := $(COQBIN)coqc $(COQFLAGS)
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COQDEP := $(COQBIN)coqdep
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COQIDE := $(COQBIN)coqide $(COQFLAGS)
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############################################################################
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# Targets
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.PHONY: all proof depend quick proof_vo proof_vq
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all: proof
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ifeq ($(SERIOUS),0)
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proof: proof_vq
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else
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proof: proof_vo
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endif
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proof_vq: $(VQ)
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depend: $(VD)
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quick: $(VIO)
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proof_vo: $(VO)
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############################################################################
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# Verbosity control.
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# Our commands are pretty long (due, among other things, to the use of
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# absolute paths everywhere). So, we hide them by default, and echo a short
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# message instead. However, sometimes one wants to see the command.
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# By default, VERBOSE is undefined, so the .SILENT directive is read, so no
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# commands are echoed. If VERBOSE is defined by the user, then the .SILENT
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# directive is ignored, so commands are echoed, unless they begin with an
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# explicit @.
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ifndef VERBOSE
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.SILENT:
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endif
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############################################################################
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# Verbosity filter.
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# Coq is way too verbose when using one of the -schedule-* commands.
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# So, we grep its output and remove any line that contains 'Checking task'.
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# We need a pipe that keeps the exit code of the *first* process. In
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# bash, when the pipefail option is set, the exit code is the logical
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# conjunction of the exit codes of the two processes. If we make sure
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# that the second process always succeeds, then we get the exit code
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# of the first process, as desired.
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############################################################################
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# Rules
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# If B uses A, then the dependencies produced by coqdep are:
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# B.vo: B.v A.vo
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# B.vio: B.v A.vio
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%.v.d: %.v
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$(COQDEP) $(COQINCLUDE) $< > $@
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ifeq ($(SERIOUS),0)
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%.vo: %.vio
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@echo "Compiling `basename $*`..."
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set -o pipefail; ( \
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$(COQC) $(COQINCLUDE) -schedule-vio2vo 1 $* \
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2>&1 | (grep -v 'Checking task' || true))
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# The recipe for producing %.vio destroys %.vo. In other words, we do not
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# allow a young .vio file to co-exist with an old (possibly out-of-date) .vo
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# file, because this seems to lead Coq into various kinds of problems
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# ("inconsistent assumption" errors, "undefined universe" errors, warnings
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# about the existence of both files, and so on). Destroying %.vo should be OK
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# as long as the user does not try to build a mixture of .vo and .vio files in
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# one invocation of make.
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%.vio: %.v
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@echo "Digesting `basename $*`..."
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rm -f $*.vo
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$(COQC) $(COQINCLUDE) -quick $<
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%.vq: %.vio
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@echo "Checking `basename $*`..."
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set -o pipefail; ( \
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$(COQC) $(COQINCLUDE) -schedule-vio-checking 1 $< \
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2>&1 | (grep -v 'Checking task' || true))
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touch $@
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endif
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ifeq ($(SERIOUS),1)
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%.vo: %.v
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@echo "Compiling `basename $*`..."
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$(COQC) $(COQINCLUDE) $<
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endif
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_CoqProject: .FORCE
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@echo $(COQINCLUDE) > $@
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.FORCE:
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############################################################################
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# Dependencies
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ifeq ($(findstring $(MAKECMDGOALS),depend clean),)
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-include $(VD)
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endif
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############################################################################
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# IDE
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.PHONY: ide
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.coqide:
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@echo '$(COQIDE) $(COQINCLUDE) $$*' > .coqide
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@chmod +x .coqide
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ide: _CoqProject
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$(COQIDE) $(COQINCLUDE)
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############################################################################
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# Clean
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.PHONY: clean
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clean::
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rm -f *~
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rm -f $(patsubst %.v,%.v.d,$(V)) # not $(VD)
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rm -f $(VIO) $(VO) $(VQ)
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rm -f *.aux .*.aux *.glob *.cache *.crashcoqide
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rm -rf .coq-native .coqide
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# TEMPORARY *~, *.aux, etc. do not make sense in a multi-directory setting
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