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Autotools: fix configure check for aarch64 CRC32 API #15587

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Autotools: fix configure check for aarch64 CRC32 API #15587

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14 changes: 13 additions & 1 deletion configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -696,7 +696,19 @@ AC_FUNC_ALLOCA
PHP_TIME_R_TYPE

AC_CACHE_CHECK([for aarch64 CRC32 API], [php_cv_func___crc32d],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <arm_acle.h>], [__crc32d(0, 0);])],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <arm_acle.h>
# if defined(__GNUC__)
# if!defined(__clang__)
# pragma GCC push_options
# pragma GCC target ("+nothing+crc")
# elif defined(__APPLE__)
# pragma clang attribute push(__attribute__((target("crc"))), apply_to=function)
# else
# pragma clang attribute push(__attribute__((target("+nothing+crc"))), apply_to=function)
# endif
# endif
], [__crc32d(0, 0);])],
[php_cv_func___crc32d=yes],
[php_cv_func___crc32d=no])])
AS_VAR_IF([php_cv_func___crc32d], [yes],
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