Updated Makefiles

Task_3/Task_3.2/Makefile

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+# Syntax
+# <target>: <dependencies>
+# 	  <command>
+#	  ...
+
+# variables 
+LATEX = pdflatex
+BIB = bibtex 
+
+all: linux-24.pdf
+
+# creating a pdf outof tex and bib file
+# % = filename without ending
+# $* = filename corresponding to %
+%.pdf: %.tex %.bib
+	$(LATEX) $*
+	$(BIB) $*
+	$(LATEX) $*
+
+	# Überprüfe auf "undefined references" im Log-File
+	@if grep -q "undefined references" $*.log; then \
+		$(LATEX) $*; \
+	fi
+
+# remove all created files
+clean:
+	rm -f *.pdf *.aux *.log *.bbl *.blg