File hydrogen-gcc47.patch of Package hydrogen

Index: hydrogen-1.0.0-beta1/src/gui/src/SongEditor/SongEditor.cpp
===================================================================
--- hydrogen-1.0.0-beta1.orig/src/gui/src/SongEditor/SongEditor.cpp	2018-03-14 12:03:22.000000000 +0200
+++ hydrogen-1.0.0-beta1/src/gui/src/SongEditor/SongEditor.cpp	2019-04-07 11:57:23.663368541 +0200
@@ -21,6 +21,7 @@
  */
 
 #include <assert.h>
+#include <unistd.h>
 #include <algorithm>
 #include <memory>
 
Index: hydrogen-1.0.0-beta1/src/gui/src/MainForm.cpp
===================================================================
--- hydrogen-1.0.0-beta1.orig/src/gui/src/MainForm.cpp	2018-03-14 12:03:22.000000000 +0200
+++ hydrogen-1.0.0-beta1/src/gui/src/MainForm.cpp	2019-04-07 11:57:23.663368541 +0200
@@ -20,6 +20,7 @@
  *
  */
 
+#include <unistd.h>
 #include <hydrogen/event_queue.h>
 #include <hydrogen/version.h>
 #include <hydrogen/hydrogen.h>