148 lines
3.6 KiB
Makefile
148 lines
3.6 KiB
Makefile
# Load the configure script variables
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-include configure.mk
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##
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## Directories
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##
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# Structure:
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# gray - top level
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# ├── src - source code
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# ├── doc - documentation
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# └── build - build artifacts
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# ├── bin - binaries
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# ├── lib - libraries
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# └── obj - objects
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SRCDIR = src
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BUILDDIR = build
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SHAREDIR = build/share
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BINDIR = build/bin
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LIBDIR = build/lib
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OBJDIR = build/obj
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# Directories that need to be created
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DIRS = $(BINDIR) $(OBJDIR) $(LIBDIR) $(SHAREDIR)
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##
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## Files
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##
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# All Fortran source files
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SOURCES = $(wildcard $(SRCDIR)/*.f90)
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# All Generated makefiles describing object dependencies
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OBJECTS = $(patsubst $(SRCDIR)/%.f90,$(OBJDIR)/%.o,$(SOURCES))
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# Generated makefiles describing object dependencies
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DEPS = $(OBJECTS:o=d)
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# Fortran modules to be bundled into libraries
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MODULES = $(filter-out $(OBJDIR)/main%,$(OBJECTS))
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# Build outputs
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GRAY = $(BINDIR)/gray
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LIBGRAY = $(LIBDIR)/libgray
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BINARIES = $(GRAY)
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LIBRARIES = $(LIBGRAY).so
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##
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## Git information (used in the version string)
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##
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# Short hash of the latest commit
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GIT_REV ?= $(shell git rev-parse --short HEAD)
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# Whether the worktree and the latest commit differs
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GIT_DIRTY ?= $(shell test -n "$$(git status --porcelain)" && echo "-dirty")
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##
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## Fortran compiler and flags
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##
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# Note: can't use ?= for FC because GNU Make defaults to f77
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FC = gfortran
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LD = gfortran
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FFLAGS += -O3 -J$(OBJDIR)
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CPPFLAGS += -DREVISION=\"$(GIT_REV)$(GIT_DIRTY)\"
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# Static build options
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ifdef STATIC
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LIBRARIES := $(LIBRARIES:so=a)
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LDFLAGS += -static
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endif
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##
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## Targets
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##
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.PHONY: all clean install docs
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all: $(BINARIES) $(LIBRARIES) docs
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# Remove all generated files
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clean:
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rm -r $(BUILDDIR)
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# Install libraries, binaries and documentation
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install: $(BINARIES) $(LIBRARIES) doc/gray.1
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install -Dm555 -t $(PREFIX)/bin $(BINDIR)/*
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install -Dm555 -t $(PREFIX)/lib $(LIBDIR)/*
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install -Dm644 -t $(PREFIX)/share/doc $(SHAREDIR)/doc/manual.*
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install -Dm644 -t $(PREFIX)/share/doc/res $(SHAREDIR)/doc/res/*
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install -Dm644 -t $(PREFIX)/share/man/man1 doc/gray.1
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# GRAY binary
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$(GRAY): $(shell ./depend $(OBJDIR)/main.o) | $(BINDIR)
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$(LD) $(LDFLAGS) -o $@ $^
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# GRAY shared library
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$(LIBGRAY).so: $(MODULES) | $(LIBDIR)
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$(LD) -shared $(LDFLAGS) -o $@ $^
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# GRAY static library
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$(LIBGRAY).a($(MODULES)): | $(LIBDIR)
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$(LIBGRAY).a: $(LIBGRAY).a($(MODULES))
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# All documentation
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docs: | $(SHAREDIR)
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make -C doc
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cp -t $(SHAREDIR) -r doc/build/*
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# Visualise the dependency graph
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# Note: requires makefile2graph and graphviz
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graph.svg: Makefile
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make -Bdn \
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| make2graph -b \
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| awk -F'( -> )| ;|[[]' ' \
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(/label/ && !/(\.o|bin\/gray)/) {bad[$$1]=1; next} \
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/->/ {if (bad[$$1] || bad[$$2]) next} \
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{print $$0}' \
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| sed 's/label/fontsize=30,label/g; s/\.o//' \
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| dot -Tsvg -o $@
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##
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## Generic rules
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##
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# Rebuild everything if the makefile changed
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.EXTRA_PREREQS += Makefile
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# Automatic generation of the Fortran prerequisites
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# Note 1: this is needed because gfortran -M flag doesn't properly work;
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# Note 2: this assumes matching module/file names and no circular
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# dependencies (ie. the dependency graph is a DAG);
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$(OBJDIR)/%.d: $(SRCDIR)/%.f90 | $(OBJDIR)
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@printf '$(@:d=o): $< \\\n' > $@
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@sed -n 's@^[^!].*use \([^,]\+\),.*@$(OBJDIR)/\1.o \\@p' '$<' | sort -u >> $@
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# Load the generated rules
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include $(DEPS)
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# Compile a generic Fortran source
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$(OBJDIR)/%.o: $(SRCDIR)/%.f90 | $(OBJDIR)
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$(FC) -cpp $(CPPFLAGS) $(FFLAGS) -c $< -o $@
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# Create directories
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$(DIRS):
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mkdir -p $@
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