Replacing make by meson.

This involves replacing all Makefiles by meson.build files.
Also the top-level configure script now simply invokes meson.
The top-level Makefile is just a wrapper for meson. It supports
the following operations:

make
make test
make install
make clean    # Remove build artifacts but keep configuration
make purge    # Remove build artifacts and configuration

Signed-off-by: Martin Belanger <[email protected]>

Author: Martin Belanger

.github/workflows/make.yml

@@ -1,79 +1,39 @@
-NAME=libnvme
-SPECFILE=$(NAME).spec
-VERSION=$(shell awk '/Version:/ { print $$2 }' $(SPECFILE))
-TAG = $(NAME)-$(VERSION)
-RPMBUILD=$(shell `which rpmbuild >&/dev/null` && echo "rpmbuild" || echo "rpm")
-
-INSTALL=install
-
-default: all
-
-python: all
-	@$(MAKE) -C libnvme python
-
-all: $(NAME).pc
-	@$(MAKE) -C src
-	@$(MAKE) -C test
-	@$(MAKE) -C examples
-
-runtests: all
-	@$(MAKE) -C test runtests
-runtests-loop:
-	@$(MAKE) -C test runtests-loop
-
-config-host.mak: configure
-	@if [ ! -e "$@" ]; then					\
-	  echo "Running configure ...";				\
-	  ./configure;						\
-	else							\
-	  echo "$@ is out-of-date, running configure";		\
-	  sed -n "/.*Configured with/s/[^:]*: //p" "$@" | sh;	\
-	fi
-
-ifneq ($(MAKECMDGOALS),clean)
-include config-host.mak
-endif
-
-SED_PROCESS = \
-	sed -e "s%@prefix@%$(prefix)%g" \
-               -e "s%@libdir@%$(libdir)%g" \
-               -e "s%@includedir@%$(includedir)%g" \
-               -e "s%@NAME@%$(NAME)%g" \
-               -e "s%@VERSION@%$(VERSION)%g" \
-               $< >$@
-
-%.pc: %.pc.in config-host.mak $(SPECFILE)
-	$(SED_PROCESS)
-
-install: $(NAME).pc
-	@$(MAKE) -C src install prefix=$(DESTDIR)$(prefix) includedir=$(DESTDIR)$(includedir) libdir=$(DESTDIR)$(libdir)
-	$(INSTALL) -D -m 644 $(NAME).pc $(DESTDIR)$(libdir)/pkgconfig/$(NAME).pc
-	$(INSTALL) -m 755 -d $(DESTDIR)$(mandir)/man2
-	$(INSTALL) -m 644 doc/man/*.2 $(DESTDIR)$(mandir)/man2
-
-install-tests:
-	@$(MAKE) -C test install prefix=$(DESTDIR)$(prefix) datadir=$(DESTDIR)$(datadir)
-
-install-python:
-	@$(MAKE) -C libnvme install prefix=$(DESTDIR)$(prefix)
-
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# This file is part of libnvme.
+# Copyright (c) 2021 Dell Inc.
+#
+# Authors: Martin Belanger <[email protected]>
+#
+NAME          := libnvme
+.DEFAULT_GOAL := ${NAME}
+BUILD-DIR     := .build
+
+${BUILD-DIR}:
+	meson $@
+	@echo "Configuration located in: $@"
+	@echo "-------------------------------------------------------"
+
+.PHONY: ${NAME}
+${NAME}: ${BUILD-DIR}
+	ninja -C ${BUILD-DIR}
+
+.PHONY: clean
 clean:
-	@rm -f config-host.mak config-host.h cscope.out $(NAME).pc
-	@$(MAKE) -C src clean
-	@$(MAKE) -C test clean
-	@$(MAKE) -C examples clean
-
-cscope:
-	@cscope -b -R
-
-tag-archive:
-	@git tag $(TAG)
+ifneq ("$(wildcard ${BUILD-DIR})","")
+	ninja -C ${BUILD-DIR} -t $@
+endif
 
-create-archive:
-	@git archive --prefix=$(NAME)-$(VERSION)/ -o $(NAME)-$(VERSION).tar.gz $(TAG)
-	@echo "The final archive is ./$(NAME)-$(VERSION).tar.gz."
+.PHONY: purge
+purge:
+ifneq ("$(wildcard ${BUILD-DIR})","")
+	rm -rf ${BUILD-DIR}
+endif
 
-archive: clean tag-archive create-archive
+.PHONY: install dist
+install dist: ${BUILD-DIR}
+	cd ${BUILD-DIR} && meson $@
 
-srpm: create-archive
-	$(RPMBUILD) --define "_sourcedir `pwd`" --define "_srcrpmdir `pwd`" --nodeps -bs $(SPECFILE)
+.PHONY: test
+test: ${BUILD-DIR}
+	ninja -C ${BUILD-DIR} $@