[hackers] [libzahl] Improve makefile || Mattias Andrée

[git]

commit 161fc837b628617e60f4fe647c73ca63f87222ce
Author:     Mattias Andrée <maand...@kth.se>
AuthorDate: Sun May 8 17:00:03 2016 +0200
Commit:     Mattias Andrée <maand...@kth.se>
CommitDate: Sun May 8 17:00:03 2016 +0200

    Improve makefile
    
    Signed-off-by: Mattias Andrée <maand...@kth.se>

diff --git a/Makefile b/Makefile
index 6c03b9e..15a41e9 100644
--- a/Makefile
+++ b/Makefile
@@ -147,8 +147,8 @@ benchmark-zrand: bench/benchmark-zrand.c bench/benchmark.h 
libzahl.a
        $(CC) $(LDFLAGS) $(CFLAGS) $(CPPFLAGS) -o $@ bench/benchmark-zrand.c 
libzahl.a
 
 refsheet.pdf: doc/refsheet.tex
-       yes X | pdflatex doc/refsheet.tex
-       yes X | pdflatex doc/refsheet.tex
+       pdflatex doc/refsheet.tex </dev/null
+       pdflatex doc/refsheet.tex </dev/null
 
 check: test
        ./test