Re: PATCH COMMITTED: gcc 4.2 support for -Wstrict-overflow/-fstrict-overflow

["Richard Guenther" <richard dot guenther at gmail dot com>]

On 3/12/07, Eric Botcazou <ebotcazou@libertysurf.fr> wrote:
> > I have just committed the gcc 4.2 patch which adds support for
> > -Wstrict-overflow and -fstrict-overflow, as previously approved.  A
> > bunch of testing was required.
>
> Not enough apparently. :-)  I get this on x86-64/Linux:
>
> gcc   -g -fkeep-inline-functions -DIN_GCC   -W -Wall -Wwrite-strings
> -Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute
> -fno-common   -DHAVE_CONFIG_H  -o xgcc gcc.o opts-common.o gcc-options.o
> gccspec.o \
>   intl.o prefix.o version.o
> driver-i386.o  ../libcpp/libcpp.a   ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a
> gcc.o(.text+0x128): In function `issue_strict_overflow_warning':
> /home/eric/svn/gcc-4_2-branch/gcc/flags.h:347: undefined reference to
> `warn_strict_overflow'
> collect2: ld returned 1 exit status
> make[3]: *** [xgcc] Error 1

Appearantly

2007-02-14  Richard Guenther  <rguenther@suse.de>

       * flags.h (issue_strict_overflow_warning): Convert to a macro.

is missing...

Richard.