-diff -u -r ../libqalculate-2.0.0/libqalculate/Calculator.cc ./libqalculate/Calculator.cc
---- ../libqalculate-2.0.0/libqalculate/Calculator.cc 2017-08-27 21:38:22.000000000 +0200
-+++ ./libqalculate/Calculator.cc 2017-08-31 16:09:58.987236004 +0200
-@@ -9360,7 +9360,7 @@
- char filename[MAX_PATH];
- return SearchPath(NULL, "gnuplot", ".exe", MAX_PATH, filename, &lpFilePart);
- #else
-- FILE *pipe = popen("gnuplot -", "w");
-+ FILE *pipe = popen("gnuplot - 2> /dev/null", "w");
- if(!pipe) return false;
- return pclose(pipe) == 0;
- #endif