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gh-89640: Restore configure error message on failure to detect float word order (#126569) 

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 ARM or WASM, which as hardcoded).
This commit is contained in:
Hood Chatham 2024-11-08 12:57:17 +01:00 committed by GitHub
parent 9ecd8f7f40
commit 403410fa1b
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2 changed files with 7 additions and 2 deletions
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2
configure generated vendored
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@ -24219,7 +24219,7 @@ printf "%s\n" "#define DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754 1" >>confdefs.h
printf "%s\n" "#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754 1" >>confdefs.h printf "%s\n" "#define DOUBLE_IS_LITTLE_ENDIAN_IEEE754 1" >>confdefs.h
;; #( ;; #(
*) : *) :
;; as_fn_error $? "Unknown float word ordering. You need to manually preset ax_cv_c_float_words_bigendian=no (or yes) according to your system." "$LINENO" 5 ;;
esac ;; esac ;;
esac esac

7
configure.ac
View File

@ -5920,7 +5920,12 @@ AX_C_FLOAT_WORDS_BIGENDIAN(
stored in ARM mixed-endian order (byte order 45670123)])], stored in ARM mixed-endian order (byte order 45670123)])],
[wasm*], [AC_DEFINE([DOUBLE_IS_LITTLE_ENDIAN_IEEE754], [1], [wasm*], [AC_DEFINE([DOUBLE_IS_LITTLE_ENDIAN_IEEE754], [1],
[Define if C doubles are 64-bit IEEE 754 binary format, [Define if C doubles are 64-bit IEEE 754 binary format,
stored with the least significant byte first])])]) stored with the least significant byte first])],
[AC_MSG_ERROR([m4_normalize([
Unknown float word ordering. You need to manually
preset ax_cv_c_float_words_bigendian=no (or yes)
according to your system.
])])])])
# The short float repr introduced in Python 3.1 requires the # The short float repr introduced in Python 3.1 requires the
# correctly-rounded string <-> double conversion functions from # correctly-rounded string <-> double conversion functions from