package/menu-cache: fix build with gcc 10

Fixes:
 - http://autobuild.buildroot.org/results/a97825f3c3e6245f8d1c2eb0cdb079f5dd6f1b47

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/menu-cache/0001-Support-gcc10-compilation.patch

@@ -0,0 +1,109 @@
+From 1ce739649b4d66339a03fc0ec9ee7a2f7c141780 Mon Sep 17 00:00:00 2001
+From: Mamoru TASAKA <mtasaka@fedoraproject.org>
+Date: Fri, 24 Jan 2020 13:33:00 +0900
+Subject: [PATCH] Support gcc10 compilation
+
+gcc10 now defaults to -fno-common, and with gcc10 menu-cache compilation fails like
+
+/bin/ld: menu-merge.o:menu-cache-gen/menu-tags.h:167: multiple definition of `DirDirs'; main.o:menu-cache-gen/menu-tags.h:167: first defined here
+/bin/ld: menu-merge.o:menu-cache-gen/menu-tags.h:164: multiple definition of `AppDirs'; main.o:menu-cache-gen/menu-tags.h:164: first defined here
+/bin/ld: menu-merge.o:menu-cache-gen/menu-tags.h:52: multiple definition of `menuTag_Layout'; main.o:menu-cache-gen/menu-tags.h:52: first defined here
+....
+
+This patch fixes compilation with gcc10: properly declaring variables in header with "extern", and also removing some unneeded variables in header files.
+
+[Retrieved from:
+https://github.com/lxde/menu-cache/pull/19/commits/1ce739649b4d66339a03fc0ec9ee7a2f7c141780]
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+---
+ menu-cache-gen/menu-tags.h | 55 ++++++++++++--------------------------
+ 1 file changed, 17 insertions(+), 38 deletions(-)
+
+diff --git a/menu-cache-gen/menu-tags.h b/menu-cache-gen/menu-tags.h
+index f3fd7d3..f71c0bc 100644
+--- a/menu-cache-gen/menu-tags.h
++++ b/menu-cache-gen/menu-tags.h
+@@ -22,38 +22,17 @@
+ #include <libfm/fm-extra.h>
+ #include <menu-cache.h>
+ 
+-FmXmlFileTag menuTag_Menu;
+-FmXmlFileTag menuTag_AppDir;
+-FmXmlFileTag menuTag_DefaultAppDirs;
+-FmXmlFileTag menuTag_DirectoryDir;
+-FmXmlFileTag menuTag_DefaultDirectoryDirs;
+-FmXmlFileTag menuTag_Include;
+-FmXmlFileTag menuTag_Exclude;
+-FmXmlFileTag menuTag_Filename;
+-FmXmlFileTag menuTag_Or;
+-FmXmlFileTag menuTag_And;
+-FmXmlFileTag menuTag_Not;
+-FmXmlFileTag menuTag_Category;
+-FmXmlFileTag menuTag_MergeFile;
+-FmXmlFileTag menuTag_MergeDir;
+-FmXmlFileTag menuTag_DefaultMergeDirs;
+-FmXmlFileTag menuTag_Directory;
+-FmXmlFileTag menuTag_Name;
+-FmXmlFileTag menuTag_Deleted;
+-FmXmlFileTag menuTag_NotDeleted;
+-FmXmlFileTag menuTag_OnlyUnallocated;
+-FmXmlFileTag menuTag_NotOnlyUnallocated;
+-FmXmlFileTag menuTag_All;
+-FmXmlFileTag menuTag_LegacyDir;
+-FmXmlFileTag menuTag_KDELegacyDirs;
+-FmXmlFileTag menuTag_Move;
+-FmXmlFileTag menuTag_Old;
+-FmXmlFileTag menuTag_New;
+-FmXmlFileTag menuTag_Layout;
+-FmXmlFileTag menuTag_DefaultLayout;
+-FmXmlFileTag menuTag_Menuname;
+-FmXmlFileTag menuTag_Separator;
+-FmXmlFileTag menuTag_Merge;
++extern FmXmlFileTag menuTag_AppDir;
++extern FmXmlFileTag menuTag_DirectoryDir;
++extern FmXmlFileTag menuTag_Include;
++extern FmXmlFileTag menuTag_Exclude;
++extern FmXmlFileTag menuTag_Filename;
++extern FmXmlFileTag menuTag_Or;
++extern FmXmlFileTag menuTag_And;
++extern FmXmlFileTag menuTag_Not;
++extern FmXmlFileTag menuTag_Category;
++extern FmXmlFileTag menuTag_All;
++extern FmXmlFileTag menuTag_LegacyDir;
+ 
+ typedef enum {
+     MERGE_NONE, /* starting value */
+@@ -152,19 +131,19 @@ typedef struct {
+ } MenuRule;
+ 
+ /* requested language(s) */
+-char **languages;
++extern char **languages;
+ 
+ /* list of menu files to monitor */
+-GSList *MenuFiles;
++extern GSList *MenuFiles;
+ 
+ /* list of menu dirs to monitor */
+-GSList *MenuDirs;
++extern GSList *MenuDirs;
+ 
+ /* list of available app dirs */
+-GSList *AppDirs;
++extern GSList *AppDirs;
+ 
+ /* list of available dir dirs */
+-GSList *DirDirs;
++extern GSList *DirDirs;
+ 
+ /* parse and merge menu files */
+ MenuMenu *get_merged_menu(const char *file, FmXmlFile **xmlfile, GError **error);
+@@ -177,7 +156,7 @@ gboolean save_menu_cache(MenuMenu *layout, const char *menuname, const char *fil
+ void _free_layout_items(GList *data);
+ 
+ /* verbosity level */
+-gint verbose;
++extern gint verbose;
+ 
+ #define DBG if (verbose) g_debug
+ #define VDBG if (verbose > 1) g_debug