Start writing of the man pages

Former-commit-id: 533a8a6380a5a0b66314081a5ec2aeb973ebadec

doc/man/Makefile

@@ -0,0 +1,41 @@
+MANPAGES= obigrep 
+
+BUILDDIR=../build
+MANDIR=$(BUILDDIR)/_man
+MANDEST=$(MANDIR)/man1
+HTMLDEST=$(MANDIR)/html
+
+MANSRC=$(MANPAGES:=.qmd)
+DEPS=$(patsubst %,depends/%,$(MANPAGES:=.d))
+MAN=$(patsubst %,$(MANDEST)/%,$(MANSRC:.qmd=.man))
+
+
+
+all: $(MAN) 
+
+clean:
+	rm -f $(MAN) 
+	rm -rf depends
+
+.PHONY: all
+
+$(MANDEST):
+	@echo Creating $@ directory
+	@mkdir -p $@
+
+$(MAN) : $(MANDEST)/%.man : %.qmd $(MANDEST)
+	@echo "Rendering the man page for " $(notdir $(@:.man=))
+	@quarto render  $< --to man 
+	@mv $(notdir $@) $@
+	@echo =====================================================
+	@echo
+
+depends/%.d: %.qmd
+	@mkdir -p depends
+	@echo Generating depends file for $(notdir $(@:.qmd=))
+	@awk -v src=$< 'BEGIN {printf("%s: ",src)} \
+	                /\{\{< *include *[^>]+>\}\}/ {sub(/^ *\{\{< *include */,"",$$0); \
+										sub(/ *> *\}\} */,"",$$0); \
+										printf("%s ",$$0)}' $< > $@
+
+-include $(DEPS)