configure: fix _Pragma check.
The test can currently pass when _Pragma is not supported, since _Pragma might be treated as a implicitly declared function. This happens e.g. with tinycc. Extending the check to 2 pragmas both matches the actual use better and avoids this misdetection.
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@ -5984,7 +5984,7 @@ for restrict_keyword in restrict __restrict__ __restrict ""; do
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test_code cc "" "char * $restrict_keyword p" && break
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done
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check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
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check_cc pragma_deprecated "" '_Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
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# The global variable ensures the bits appear unchanged in the object file.
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test_cc <<EOF || die "endian test failed"
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