>Number: 163464
>Category: kern
>Synopsis: Invalid compiler flag in /sys/conf/kern.mk
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Dec 19 23:30:12 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator: Eugene Varnavsky
>Release: 8.2
>Organization:
>Environment:
8.2-RELEASE-p3 FreeBSD 8.2-RELEASE-p3 #0: Tue Sep 27 18:45:57 UTC 2011
r...@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
/sys/conf/kern.mk:
CWARNFLAGS?= -Wall -Wredundant-decls -Wnested-externs
-Wstrict-prototypes \
-Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual
\
${_wundef} ${_Wno_pointer_sign} -fformat-extensions
-fformat-extensions parameter is invalid, does not present in GCC 4.2 docs and
is not accepted (with error) by GCC 4.6
>How-To-Repeat:
Install custom GCC as described in handbook:
http://www.freebsd.org/doc/en/articles/custom-gcc/article.html
try to compile one of the ports that uses kernel sources:
# cd /usr/ports/emulators/open-vm-tools
# make
>Fix:
Remove the '-fformat-extensions' from string 15 of /sys/conf/kern.mk
>Release-Note:
>Audit-Trail:
>Unformatted:
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