crossgcc: Fix libcpp to address -Wformat-security

On some systems where the system compiler enables `-Wformat-security
-Werror=format-security` options by default, building libcpp fails
because the code passes a variable directly as a format string.

This change addresses this problem by patching the affected code.

Tested with the default compiler of Nixpkgs unstable, GCC 9.3.0 with the
options described above enabled by default.

Signed-off-by: Masanori Ogino <mogino@acm.org>
Change-Id: Ibf3c9e79ce10cd400c9f7ea40dd6de1ab81b50e2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45311
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

0 files changed, 0 insertions, 0 deletions