1 files changed, 37 insertions, 0 deletions
diff --git a/dev-libs/gf2x/files/fno-common.patch b/dev-libs/gf2x/files/fno-common.patch
new file mode 100644
index 000000000000..bcb4c255707d
--- /dev/null
+++ b/dev-libs/gf2x/files/fno-common.patch
@@ -0,0 +1,37 @@
+From 5c8737c5c3170358024a4a969e1386cea15932f3 Mon Sep 17 00:00:00 2001
+From: Michael Orlitzky <michael@orlitzky.com>
+Date: Sun, 26 Apr 2020 09:56:34 -0400
+Subject: [PATCH 1/1] src/tunetoom.c: delete duplicate definition of rp.
+
+The "make tune-toom" command has started failing with gcc-10.x because
+of its new default -fno-common behavior,
+
+  * https://gcc.gnu.org/gcc-10/porting_to.html
+  * https://wiki.gentoo.org/wiki/Gcc_10_porting_notes/fno_common
+
+This leads to an error involving the FILE pointer "rp" that is declared
+in global scope in both src/tunetoom.c and src/tuning-common.c. In this
+case, the declaration in src/tunetoom.c is simply redundant: that file
+includes src/tuning-common.h which already declares "rp" as extern.
+
+Deleting the redeclaration in src/tunetoom.c makes the build succeed.
+---
+ src/tunetoom.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+diff --git a/src/tunetoom.c b/src/tunetoom.c
+index 7553e0c..1140606 100644
+--- a/src/tunetoom.c
++++ b/src/tunetoom.c
+@@ -111,8 +111,6 @@ const char * gf2x_utoom_select_string[] = {
+     [GF2X_SELECT_UNB_TC3U]  = "TC3U",
+ };
+ 
+-FILE *rp;
+-
+ void tunetoom(long tablesz)
+ {
+     long high, n;
+-- 
+2.24.1
+