10000 gh-89640: Restore configure error message on failure to detect float … · python/cpython@8d5b726 · GitHub
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gh-89640: Restore configure error message on failure to detect float word order
Before #126387, if we didn't detect float word order we'd raise the following configure error: ``` Unknown float word ordering. You need to manually preset ax_cv_c_float_words_bigendian=no (or yes) according to your system. ``` This puts it back (except for host_cpu arm or wasm).
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‎configure

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‎configure.ac

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@@ -5920,7 +5920,15 @@ AX_C_FLOAT_WORDS_BIGENDIAN(
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stored in ARM mixed-endian order (byte order 45670123)])],
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[wasm*], [AC_DEFINE([DOUBLE_IS_LITTLE_ENDIAN_IEEE754], [1],
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[Define if C doubles are 64-bit IEEE 754 binary format,
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stored with the least significant byte first])])])
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stored with the least significant byte first])],
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AC_MSG_ERROR[([
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Unknown float word ordering. You need to manually preset
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ax_cv_c_float_words_bigendian=no (or yes) according to your system.
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])]
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)]
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)
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# The short float repr introduced in Python 3.1 requires the
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# correctly-rounded string <-> double conversion functions from

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