Missing includes in main library and in tests
https://bugs.gentoo.org/886463
--- a/main/dtfits.c
+++ b/main/dtfits.c
@@ -33,6 +33,7 @@
 #include <string.h>
 
 #include "qfits_table.h"
+#include "qfits_tools.h"
 
 /*-----------------------------------------------------------------------------
                                    Define
--- a/main/qextract.c
+++ b/main/qextract.c
@@ -32,6 +32,7 @@
 #include "qfits_table.h" 
 #include "qfits_image.h" 
 #include "qfits_rw.h" 
+#include "qfits_tools.h"
 
 /*-----------------------------------------------------------------------------
                                Function prototypes
--- a/test/test_pixio.c
+++ b/test/test_pixio.c
@@ -41,6 +41,7 @@
 
 #include "qfits_header.h"
 #include "qfits_image.h"
+#include "qfits_rw.h"
 #include "qfits_md5.h"
 #include "qfits_memory.h"