File read-edid-fix-gcc10-build.patch of Package read-edid

diff -ur read-edid-3.0.2/get-edid/classic.c read-edid-3.0.2.mod/get-edid/classic.c
--- read-edid-3.0.2/get-edid/classic.c	2015-04-29 03:08:34.000000000 +0200
+++ read-edid-3.0.2.mod/get-edid/classic.c	2020-06-07 22:47:03.625342070 +0200
@@ -26,7 +26,7 @@
 #define dosmemput(buffer,length,offset) memcpy(offset,buffer,length)
 
 #define display(...) if (quiet == 0) { fprintf(stderr, __VA_ARGS__); }
-int quiet;
+static int quiet;
 
 real_ptr far_ptr_to_real_ptr( uint32 farptr )
 {
diff -ur read-edid-3.0.2/get-edid/get-edid.c read-edid-3.0.2.mod/get-edid/get-edid.c
--- read-edid-3.0.2/get-edid/get-edid.c	2014-11-21 12:50:55.000000000 +0100
+++ read-edid-3.0.2.mod/get-edid/get-edid.c	2020-06-07 22:47:49.829985294 +0200
@@ -9,10 +9,10 @@
 #include <stdlib.h>
 #include <string.h>
 
-int quiet=0;
-int i2conly=0; //0=both, 1=i2conly, 2=classiconly
-int i2cbus=-1;
-int classmon=0;
+static int quiet=0;
+static int i2conly=0; //0=both, 1=i2conly, 2=classiconly
+static int i2cbus=-1;
+static int classmon=0;
 
 #define display(...) if (quiet == 0) { fprintf(stderr, __VA_ARGS__); }
 #define version "3.0.2"