File 2002-ipxe-use-gcc6-for-more-compact-code.patch of Package qemu.20428

From: Bruce Rogers <brogers@suse.com>
Date: Fri, 25 Jan 2019 09:37:44 -0700
Subject: ipxe: use gcc6 for more compact code

Include-If: %if 0%{?suse_version} <= 1320

We have a strict size limit of 64K which needs to be enforced for
pxe-virtio.rom for migration compatibility. The v4.8 gcc compiler
used in SLE12 doesn't produce as compact code as does more recent
gcc compilers, and the pxe-virtio.rom produced with it doesn't fit
in 64K anymore without taking extraordinary efforts. I was unable
to find enough opportunities in the ipxe code and data to reduce
its size, and found that using a more recent compiler would be the
best solution to keeping the rom size within the 64K size limit.

Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 src/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/roms/ipxe/src/Makefile b/roms/ipxe/src/Makefile
index 911d27ab537dd844814baaac9831..80409cea9ed8d2b882e681a4cc93 100644
--- a/roms/ipxe/src/Makefile
+++ b/roms/ipxe/src/Makefile
@@ -24,7 +24,7 @@ ECHO		:= echo
 PRINTF		:= printf
 PERL		:= perl
 TRUE		:= true
-CC		:= $(CROSS_COMPILE)gcc
+CC		:= $(CROSS_COMPILE)gcc-6
 CPP		:= $(CC) -E
 AS		:= $(CROSS_COMPILE)as
 LD		:= $(CROSS_COMPILE)ld