Merge pull request #53 from OCR-D/check-pkg-config

Add pkg-config checks to deps for magick++

Makefile

@@ -43,6 +43,24 @@ deps-ubuntu:
 		git g++ make automake \
 		xmlstarlet ca-certificates libmagick++-dev libgraphicsmagick++1-dev libboost-dev
 
+check_pkg_config = \
+	if ! pkg-config --modversion $(1) >/dev/null 2>/dev/null;then\
+		echo "$(1) not installed. 'make deps-ubuntu' or 'sudo apt install $(2)'"; exit 1 ;\
+	fi
+
+check_config_status = \
+	if test "$(3)" = "alternative";then predicate='["HAVE_$(1)_TRUE"]="\#"' ;\
+	else predicate='["HAVE_$(1)"]=" 1"'; fi;\
+	if ! grep -Fq "$$predicate" $(BUILD_DIR)/config.status;then \
+		echo "$(2) not installed. 'make deps-ubuntu' or 'sudo apt install $(2)'"; \
+		exit 1 ; \
+	fi;
+
+deps-check:
+	$(call check_pkg_config,Magick++,libmagick++-dev)
+	$(call check_pkg_config,ImageMagick++,libgraphicsmagick++-dev)
+	$(call check_config_status,BOOST,libboost-dev)
+
 deps: #deps-ubuntu
 	test -x $(BINDIR)/scribo-cli && \
 	$(BINDIR)/scribo-cli sauvola --help >/dev/null 2>&1 || \
@@ -93,6 +111,7 @@ $(BUILD_DIR)/config.status: $(OLENA_DIR)/configure
 			--with-qt=no \
 			--with-tesseract=no \
 			--enable-scribo SCRIBO_CXXFLAGS="-DNDEBUG -DSCRIBO_NDEBUG -O2"
+	$(MAKE) deps-check
 
 build-olena: $(BUILD_DIR)/config.status
 	cd $(OLENA_DIR)/milena/mln && touch -r version.hh.in version.hh