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build: disable format-zero-length warning

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format-zero-length warns against printf-style calls with
zero-length format string. vfs_full_audit module has such
calls, and up until now there was no warning against it because
the do_log in vfs_full_audit is not recognized as printf-style
function. In a following commit the do_log will be converted to
a printf-style function, hence the need to disable this warning.

(an alternative would be to disable only for vfs_full_audit, but that
would complicate things needlessly).

Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Uri Simchoni 2017-11-20 10:17:16 +02:00 committed by Andrew Bartlett
parent 7a2d8aa084
commit e973ac0643
1 changed files with 1 additions and 0 deletions
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buildtools/wafsamba/samba_autoconf.py
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@ -708,6 +708,7 @@ def SAMBA_CONFIG_H(conf, path=None):
testflags=True)
conf.ADD_CFLAGS('-Wformat=2 -Wno-format-y2k', testflags=True)
conf.ADD_CFLAGS('-Wno-format-zero-length', testflags=True)
conf.ADD_CFLAGS('-Werror=format-security -Wformat-security', testflags=True)
# This check is because for ldb_search(), a NULL format string
# is not an error, but some compilers complain about that.