binutils: fix a build issue that is triggered with the latest OE upda…

…te and native gcc10

Some symbols are defined in the header files (not just declared). Older
gcc versions where forgiving for this error but not anymore.

meta-openpli/recipes-devtools/binutils/binutils_2.32.bbappend

@@ -0,0 +1,3 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:${THISDIR}/files:"
+
+SRC_URI += "file://0001-binutils-program-name-multiply-defined.patch"

meta-openpli/recipes-devtools/binutils/files/0001-binutils-program-name-multiply-defined.patch

@@ -0,0 +1,36 @@
+diff -ur a/binutils/coffdump.c b/binutils/coffdump.c
+--- a/binutils/coffdump.c	2020-07-18 13:13:12.243376649 +0200
++++ b/binutils/coffdump.c	2020-07-18 16:25:32.150313514 +0200
+@@ -456,7 +456,7 @@
+     dump_coff_section (ptr->sections + i);
+ }
+
+-char * program_name;
++extern char * program_name;
+
+ static void
+ show_usage (FILE *file, int status)
+diff -ur a/binutils/srconv.c b/binutils/srconv.c
+--- a/binutils/srconv.c	2020-07-18 13:13:12.318377805 +0200
++++ b/binutils/srconv.c	2020-07-18 16:26:34.857280409 +0200
+@@ -1687,7 +1687,7 @@
+     }
+ }
+
+-char *program_name;
++extern char *program_name;
+
+ ATTRIBUTE_NORETURN static void
+ show_usage (FILE *ffile, int status)
+diff -ur a/binutils/sysdump.c b/binutils/sysdump.c
+--- a/binutils/sysdump.c	2020-07-18 13:13:12.319377820 +0200
++++ b/binutils/sysdump.c	2020-07-18 16:27:15.699910180 +0200
+@@ -633,7 +633,7 @@
+     }
+ }
+
+-char *program_name;
++extern char *program_name;
+
+ ATTRIBUTE_NORETURN static void
+ show_usage (FILE *ffile, int status)