mirror of
https://git.proxmox.com/git/mirror_zfs
synced 2025-11-04 05:22:48 +00:00
682ce104cd
GCC 7.1 with will warn when we're not checking the snprintf() return code in cases where the buffer could be truncated. This patch either checks the snprintf return code (where applicable), or simply disables the warnings (ztest.c). Reviewed-by: Chunwei Chen <david.chen@osnexus.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #6253
23 lines
482 B
Plaintext
23 lines
482 B
Plaintext
dnl #
|
|
dnl # Check if gcc supports -Wno-format-truncation option.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_CONFIG_USER_NO_FORMAT_TRUNCATION], [
|
|
AC_MSG_CHECKING([for -Wno-format-truncation support])
|
|
|
|
saved_flags="$CFLAGS"
|
|
CFLAGS="$CFLAGS -Wno-format-truncation"
|
|
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])],
|
|
[
|
|
NO_FORMAT_TRUNCATION=-Wno-format-truncation
|
|
AC_MSG_RESULT([yes])
|
|
],
|
|
[
|
|
NO_FORMAT_TRUNCATION=
|
|
AC_MSG_RESULT([no])
|
|
])
|
|
|
|
CFLAGS="$saved_flags"
|
|
AC_SUBST([NO_FORMAT_TRUNCATION])
|
|
])
|