mirror of https://git.tukaani.org/xz.git
Build: Sync the compile check changes from CMakeLists.txt
It's nice to keep these in sync. The use of main() will later allow AC_LINK_IFELSE usage too which may avoid the more fragile -Werror.
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5279828635
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15
configure.ac
15
configure.ac
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@ -1033,10 +1033,11 @@ AS_IF([test "x$enable_clmul_crc" = xno], [
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#if (defined(__GNUC__) || defined(__clang__)) && !defined(__EDG__)
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__attribute__((__target__("ssse3,sse4.1,pclmul")))
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#endif
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__m128i my_clmul(__m128i a)
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int main(void)
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{
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const __m128i b = _mm_set_epi64x(1, 2);
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return _mm_clmulepi64_si128(a, b, 0);
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__m128i a = _mm_set_epi64x(1, 2);
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a = _mm_clmulepi64_si128(a, a, 0);
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return 0;
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}
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]])], [
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AC_DEFINE([HAVE_USABLE_CLMUL], [1],
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@ -1073,9 +1074,9 @@ AS_IF([test "x$enable_arm64_crc32" = xno], [
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#if (defined(__GNUC__) || defined(__clang__)) && !defined(__EDG__)
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__attribute__((__target__("+crc")))
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#endif
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uint32_t my_crc(uint32_t a, uint64_t b)
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int main(void)
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{
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return __crc32d(a, b);
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return __crc32d(1, 2) != 0;
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}
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]])], [
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AC_DEFINE([HAVE_ARM64_CRC32], [1],
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@ -1145,13 +1146,13 @@ AS_CASE([$enable_sandbox],
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#include <sys/syscall.h>
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#include <sys/prctl.h>
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void my_sandbox(void)
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int main(void)
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{
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(void)prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
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(void)SYS_landlock_create_ruleset;
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(void)SYS_landlock_restrict_self;
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(void)LANDLOCK_CREATE_RULESET_VERSION;
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return;
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return 0;
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}
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]])], [
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enable_sandbox=found
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