Makefile improvements

Output is a lot more terse and running make
multiple times won't remake if it's not necessary
to.

Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 27 insertions, 8 deletions

diff --git a/Makefile b/Makefile
index 8679222..273acf9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,13 +1,32 @@
+PDFLATEX        ?= $(shell which pdflatex)
+BIBTEX          ?= $(shell which bibtex)
+VIEWER          ?= $(shell which evince)
+
+OPTS            = -halt-on-error -file-line-error \
+                  -interaction=batchmode
+
+SOURCE          = ti-agile-methodology-manual.tex
+PDF             = $(SOURCE:.tex=.pdf)
+
+V               = @
+Q               = $(V:1=)
+QUIET_BIBTEX    = $(Q:@=@echo   '      BIBTEX      '$@;)
+QUIET_LATEX     = $(Q:@=@echo   '      LATEX       '$@;)
+QUIET_CLEAN     = $(Q:@=@echo   '      CLEAN       '$@;)
+QUIET_VIEW      = $(Q:@=@echo   '      VIEW        '$@;)
+
 all: pdf
 
-pdf:
-        pdflatex ti-agile-methodology-manual.tex
-        bibtex ti-agile-methodology-manual.aux
-        pdflatex ti-agile-methodology-manual.tex
-        pdflatex ti-agile-methodology-manual.tex
+pdf: $(PDF)
+
+$(PDF): $(SOURCE)
+        $(QUIET_LATEX) $(PDFLATEX) $(OPTS) $<
+        $(QUIET_BIBTEX) $(BIBTEX) $(<:.tex=.aux)
+        $(QUIET_LATEX) $(PDFLATEX) $(OPTS) $<
+        $(QUIET_LATEX) $(PDFLATEX) $(OPTS) $<
 
-view: pdf
-        evince ti-agile-methodology-manual.pdf
+view: $(PDF)
+        $(QUIET_VIEW) $(VIEWER) $(PDF)
 
 clean:
-        @rm -f *.log *.aux *.lot *.lof *.toc *.tex~ *.pdf *.out *.idx *.href *.url *.bbl *.blg
+        $(QUIET_CLEAN) rm -f *.log *.aux *.lot *.lof *.toc *.tex~ *.pdf *.out *.idx *.href *.url *.bbl *.blg