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m4: Disable -Wdisabled-optimization
After b4f7793ce2
, qemuxml2xmltest has apparently become big enough
to trigger a compilation error when using --enable-test-coverage on
aarch64:
CC qemuxml2xmltest.o
qemuxml2xmltest.c: In function 'mymain':
qemuxml2xmltest.c:1216:1: error: const/copy propagation disabled: 4361 basic blocks and 99285 registers [-Werror=disabled-optimization]
}
^
qemuxml2xmltest.c:1216:1: error: PRE disabled: 4361 basic blocks and 99285 registers [-Werror=disabled-optimization]
qemuxml2xmltest.c:1216:1: error: const/copy propagation disabled: 4361 basic blocks and 99285 registers [-Werror=disabled-optimization]
qemuxml2xmltest.c:1216:1: error: const/copy propagation disabled: 4361 basic blocks and 99285 registers [-Werror=disabled-optimization]
However, as the GCC documentation states, this warning is not really
caused by issues in our code, so it makes sense to disable it.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
parent
d143837bd1
commit
fbe315bdc8
@ -64,6 +64,11 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
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# Several conditionals expand the same on both branches
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# depending on the particular platform/architecture
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dontwarn="$dontwarn -Wduplicated-branches"
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# > This warning does not generally indicate that there is anything wrong
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# > with your code; it merely indicates that GCC's optimizers are unable
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# > to handle the code effectively.
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# Source: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
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dontwarn="$dontwarn -Wdisabled-optimization"
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# gcc 4.2 treats attribute(format) as an implicit attribute(nonnull),
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# which triggers spurious warnings for our usage
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