btrfs-progs: build: fix bashism in target_cpu comparison
The "=" operator should be used as configure may be run by a POSIX shell at /bin/sh (like dash). Bash recognises "=" too so this retains compatibility with it. Pull-request: #721 Signed-off-by: Sam James <sam@gentoo.org> Signed-off-by: David Sterba <dsterba@suse.com>
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@ -45,7 +45,7 @@ AC_C_CONST
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AC_C_VOLATILE
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AC_C_BIGENDIAN
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if test "x$target_cpu" == 'xx86_64'; then
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if test "x$target_cpu" = 'xx86_64'; then
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AX_CHECK_COMPILE_FLAG([-msse2], [HAVE_CFLAG_msse2=1], [HAVE_CFLAG_msse2=0])
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AC_SUBST([HAVE_CFLAG_msse2])
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