update code to allow you to run the fit outside of the src directory

To enable the fitter to run outside of the src directory, I created a new
function open_file() which works exactly like fopen() except that it searches
for the file in both the current working directory and the path specified by an
environment variable.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/test.c b/src/test.c
index b9a27ad..0c69d81 100644
--- a/src/test.c
+++ b/src/test.c
@@ -26,6 +26,7 @@
 #include "quad.h"
 #include "find_peaks.h"
 #include <gsl/gsl_sort.h>
+#include "util.h"
 
 typedef int testFunction(char *err);