ipxe: Fix gcc10 compilation

Add ipxe patch to pass -fcommon flag to gcc during compilation.
This patch is required to have ipxe compiling properly with gcc10.

Without it the following error occur (and multiple others of the same
kind:
bin/blib.a(epic100.o):(.bss+0x0): multiple definition of `_shared_bss';
  bin/blib.a(davicom.o):(.bss+0x0): first defined here

Change-Id: Id9aed4cfe6bec9c0cbdb0b99271ddff472f1f0c3
Signed-off-by: Bertrand Marquis <bertrand.marquis@arm.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/recipes-extended/ipxe/ipxe_git.bb b/recipes-extended/ipxe/ipxe_git.bb
index fbaad309..d7c60ab0 100644
--- a/recipes-extended/ipxe/ipxe_git.bb
+++ b/recipes-extended/ipxe/ipxe_git.bb
@@ -15,6 +15,7 @@ SRC_URI = " \
     file://ipxe-fix-hostcc-nopie-cflags.patch \
     file://ipxe-intel-Avoid-spurious-compiler-warning-on-GCC-10.patch \
     file://ipxe-golan-Add-explicit-type-casts-for-nodnic_queue_pair_.patch \
+    file://build-be-explicit-about-fcommon-compiler-directive.patch \
     "
 
 FILES_${PN} = "/usr/share/firmware/*.rom"