audio/denemo: fix build on current

- backport of
	http://git.savannah.gnu.org/cgit/denemo.git/patch/?id=8de3af94182e4cbdfced6c3ab775a13df7f6948b

Obtained from:	http://git.savannah.gnu.org/cgit/denemo.git/patch/?id=8de3af94182e4cbdfced6c3ab775a13df7f6948b

audio/denemo/files/patch-include_denemo_denemo__types.h

@@ -0,0 +1,20 @@
+--- include/denemo/denemo_types.h.orig	2020-08-28 18:35:58 UTC
++++ include/denemo/denemo_types.h
+@@ -429,7 +429,7 @@ enum
+   COL_ROW,
+   COL_SCHEME,
+   N_COLUMNS
+-} COMMAND_COLS;
++};
+ 
+ typedef enum { TYPESET_EXCERPT, TYPESET_MOVEMENT, TYPESET_ALL_MOVEMENTS} typeset_type;
+ 
+@@ -1212,6 +1212,7 @@ struct DenemoRoot
+   gboolean *fatal_scheme_errors; /** Abort on scheme errors */
+   gboolean *silent; /** Don't log any message */
+   gboolean *verbose; /** Display every messages */
+-}  Denemo; /**< The root object. */
++};
+ 
++extern struct DenemoRoot Denemo; /**< The root object. */
+ #endif

audio/denemo/files/patch-src_export_print.c

@@ -0,0 +1,13 @@
+--- src/export/print.c.orig	2020-08-28 18:37:44 UTC
++++ src/export/print.c
+@@ -30,7 +30,9 @@
+ #include "export/exportlilypond.h"
+ #include "core/utils.h"
+ 
+-
++gint LilyPond_stderr;       //A file descriptor to pipe for LilyPond's stderr
++GError *lily_err;
++GPid previewerpid;
+   
+ #if GTK_MAJOR_VERSION==3
+ typedef enum

audio/denemo/files/patch-src_export_print.h

@@ -0,0 +1,15 @@
+--- src/export/print.h.orig	2020-08-28 18:38:07 UTC
++++ src/export/print.h
+@@ -108,9 +108,9 @@ typedef struct WysiwygInfo
+   GtkWidget *dialog;            //an info dialog to tell the user what to do next...
+ } WysiwygInfo;
+ 
+-gint LilyPond_stderr;       //A file descriptor to pipe for LilyPond's stderr
+-GError *lily_err;
+-GPid previewerpid;
++extern gint LilyPond_stderr;       //A file descriptor to pipe for LilyPond's stderr
++extern GError *lily_err;
++extern GPid previewerpid;
+ 
+ WysiwygInfo* get_wysiwyg_info();
+ void initialize_print_status (void);