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-rw-r--r--src/liblzma/check/crc_common.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/liblzma/check/crc_common.h b/src/liblzma/check/crc_common.h
index 867e53d9..55fdd55e 100644
--- a/src/liblzma/check/crc_common.h
+++ b/src/liblzma/check/crc_common.h
@@ -34,6 +34,7 @@
#undef CRC_GENERIC
#undef CRC_CLMUL
+#undef CRC_USE_IFUNC
#undef CRC_USE_GENERIC_FOR_SMALL_INPUTS
// If CLMUL cannot be used then only the generic slice-by-four is built.
@@ -54,6 +55,10 @@
# define CRC_GENERIC 1
# define CRC_CLMUL 1
+# ifdef HAVE_FUNC_ATTRIBUTE_IFUNC
+# define CRC_USE_IFUNC 1
+# endif
+
/*
// The generic code is much faster with 1-8-byte inputs and has
// similar performance up to 16 bytes at least in microbenchmarks