configure: Remove probe for _Static_assert
_Static_assert is part of C11, which is now required. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210614233143.1221879-9-richard.henderson@linaro.org>
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@ -5090,20 +5090,6 @@ if compile_prog "" "" ; then
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have_sysmacros=yes
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fi
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##########################################
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# check for _Static_assert()
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have_static_assert=no
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cat > $TMPC << EOF
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_Static_assert(1, "success");
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int main(void) {
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return 0;
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}
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EOF
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if compile_prog "" "" ; then
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have_static_assert=yes
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fi
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##########################################
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# check for utmpx.h, it is missing e.g. on OpenBSD
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@ -6035,10 +6021,6 @@ if test "$have_sysmacros" = "yes" ; then
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echo "CONFIG_SYSMACROS=y" >> $config_host_mak
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fi
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if test "$have_static_assert" = "yes" ; then
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echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
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fi
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if test "$have_utmpx" = "yes" ; then
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echo "HAVE_UTMPX=y" >> $config_host_mak
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fi
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@ -72,18 +72,7 @@
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int:(x) ? -1 : 1; \
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}
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/* QEMU_BUILD_BUG_MSG() emits the message given if _Static_assert is
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* supported; otherwise, it will be omitted from the compiler error
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* message (but as it remains present in the source code, it can still
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* be useful when debugging). */
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#if defined(CONFIG_STATIC_ASSERT)
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#define QEMU_BUILD_BUG_MSG(x, msg) _Static_assert(!(x), msg)
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#elif defined(__COUNTER__)
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#define QEMU_BUILD_BUG_MSG(x, msg) typedef QEMU_BUILD_BUG_ON_STRUCT(x) \
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glue(qemu_build_bug_on__, __COUNTER__) __attribute__((unused))
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#else
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#define QEMU_BUILD_BUG_MSG(x, msg)
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#endif
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#define QEMU_BUILD_BUG_ON(x) QEMU_BUILD_BUG_MSG(x, "not expecting: " #x)
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