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YJIT: echo "\n" is not portable

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It's unspecified by POSIX. zsh and dash give a newline and
bash doesn't substitute it. Attributes don't have to be
followed by a newline anyway, so just remove it.

[Bug #19174]
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Alan Wu 2022-12-02 12:24:17 -05:00 committed by GitHub
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commit 1015e69d37
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configure.ac
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@ -3755,7 +3755,7 @@ AS_IF([test "$RUSTC" != "no"],
)
dnl Fails in case rustc target doesn't match ruby target.
dnl Can happen on Rosetta, for example.
AS_IF([echo "#[cfg(target_arch = \"$YJIT_TARGET_ARCH\")]\n fn main() { let x = 1; format!(\"{x}\"); }" |
AS_IF([echo "#[cfg(target_arch = \"$YJIT_TARGET_ARCH\")] fn main() { let x = 1; format!(\"{x}\"); }" |
$RUSTC - --emit asm=/dev/null 2>/dev/null],
[YJIT_RUSTC_OK=yes]
)