try to fix with_sqlite

dovecot/dovecot.spec

@@ -37,7 +37,7 @@ Class:        PLUS
 Group:        Mail
 License:      MIT+LGPL
 Version:      %{V_major}.%{V_minor}
-Release:      20210621
+Release:      20210625
 
 #   package options
 %option       with_fsl          yes
@@ -138,6 +138,9 @@ PreReq:       libsodium
 %endif
 %if "%{with_pgsql}" == "yes"
     libs="$libs -lssl -lcrypto -lcrypt"
+%endif
+%if "%{with_sqlite}" == "yes"
+    libs="$libs -lm"
 %endif
     sql_drivers=`echo "$sql_drivers" | sed 's;^,;;'`
     CC="%{l_cc}" \