add R-V V build check

Signed-off-by: sunyuechi <sunyuechi@iscas.ac.cn>

igzip/riscv64/igzip_isal_adler32_rvv.S

@@ -26,6 +26,7 @@
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 **********************************************************************/
+#if HAVE_RVV
 .option         arch, +v
 .global         adler32_rvv
 .type           adler32_rvv, %function
@@ -74,3 +75,4 @@ adler32_rvv:
   add           a0, t2, t3                           // a0 = A + B
 
   ret
+#endif

igzip/riscv64/igzip_multibinary_riscv64.S

@@ -29,7 +29,11 @@
 
 #include "riscv64_multibinary.h"
 
-mbin_interface		isal_adler32
+#if HAVE_RVV
+    mbin_interface		isal_adler32
+#else
+    mbin_interface_base		isal_adler32, adler32_base
+#endif
 
 mbin_interface_base gen_icf_map_lh1, gen_icf_map_h1_base
 mbin_interface_base decode_huffman_code_block_stateless, decode_huffman_code_block_stateless_base

igzip/riscv64/igzip_multibinary_riscv64_dispatcher.c

@@ -30,9 +30,11 @@
 
 DEFINE_INTERFACE_DISPATCHER(isal_adler32)
 {
+#if HAVE_RVV
         const unsigned long hwcap = getauxval(AT_HWCAP);
         if (hwcap & HWCAP_RV('V'))
                 return PROVIDER_INFO(adler32_rvv);
         else
+#endif
                 return PROVIDER_BASIC(adler32);
 }