autoreconf

configure

@@ -18500,7 +18500,7 @@ $as_echo_n "checking pcre-config version... " >&6; }
 $as_echo "$pcre_version" >&6; }
 
     pcrever_prefix=`expr "$pcre_version" : '\([^0-9]*\)'`
-    pcrever_frag=${pcre_version:${#pcrever_prefix}}
+    pcrever_frag=${pcre_version#$pcrever_prefix}
 
     pcrever_major=`expr "$pcrever_frag" : '\([0-9]*\)'`
     pcrever_frag=${pcrever_frag#*\.}

libclamav/c++/configure

@@ -16574,7 +16574,7 @@ subdirs="$subdirs llvm"
 fi
 
 llvmver_prefix=`expr "$llvmver" : '\([^0-9]*\)'`
-llvmver_frag=${llvmver:${#llvmver_prefix}}
+llvmver_frag=${llvmver#$llvmver_prefix}
 
 llvmver_major=`expr "$llvmver_frag" : '\([0-9]*\)'`
 llvmver_frag=${llvmver_frag#*\.}