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build: reduce warnings from older gcc
Older gcc warns (on every file!) that -Wabi and -Wdeprecated only make sense on C++ projects. Newer gcc accepts these warnings for C, but it is not clear that they can do anything useful, so it is easier to just drop the warnings altogether. * m4/virt-compile-warnings.m4 (LIBVIRT_COMPILE_WARNINGS): Silence -Wabi and -Wdeprecated on older gcc. Reported by Peter Krempa.
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@ -22,6 +22,8 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
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# Don't care about C++ compiler compat
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dontwarn="$dontwarn -Wc++-compat"
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dontwarn="$dontwarn -Wabi"
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dontwarn="$dontwarn -Wdeprecated"
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# Don't care about ancient C standard compat
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dontwarn="$dontwarn -Wtraditional"
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# Don't care about ancient C standard compat
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