From: Bruce Rogers <brogers@suse.com>
Date: Wed, 6 May 2020 21:03:02 +0000 (-0600)
Subject: [build] Be explicit about -fcommon compiler directive
X-Git-Tag: v1.21.1~146
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f982a712979619dbae2c6e0d741757e2ce94be11;p=thirdparty%2Fipxe.git

[build] Be explicit about -fcommon compiler directive

gcc10 switched default behavior from -fcommon to -fno-common.  Since
"__shared" relies on the legacy behavior, explicitly specify it.

Signed-off-by: Bruce Rogers <brogers@suse.com>
Modified-by: Michael Brown <mcb30@ipxe.org>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
---

diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping
index 66d6dd449..b6c61c112 100644
--- a/src/Makefile.housekeeping
+++ b/src/Makefile.housekeeping
@@ -418,6 +418,7 @@ CFLAGS		+= -Os
 CFLAGS		+= -g
 ifeq ($(CCTYPE),gcc)
 CFLAGS		+= -ffreestanding
+CFLAGS		+= -fcommon
 CFLAGS		+= -Wall -W -Wformat-nonliteral
 HOST_CFLAGS	+= -Wall -W -Wformat-nonliteral
 endif