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m4: Don't suggest attribute malloc

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With glib inclusion, some of its functions have
__attribute__((__malloc__)) which make compiler realize we want
to use the same attribute for some trivial functions of ours. For
instance qemuDomainManagedSavePath(). I don't see any real
benefit into using the attribute, so disable that suggestion.

In fact, wrong use of the attribute may lead to mysterious bugs:

  https://gitlab.gnome.org/GNOME/glib/issues/1465

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
ACKed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Michal Privoznik 2019-10-18 10:07:50 +02:00
parent 71519d4638
commit 0ad79c1d01
1 changed files with 1 additions and 0 deletions
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m4/virt-compile-warnings.m4
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@ -126,6 +126,7 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
dontwarn="$dontwarn -Wunused-macros"
dontwarn="$dontwarn -Woverlength-strings"
dontwarn="$dontwarn -Wstack-protector"
dontwarn="$dontwarn -Wsuggest-attribute=malloc"
# Get all possible GCC warnings
gl_MANYWARN_ALL_GCC([maybewarn])