fix missig directory

sys/libs/libcap/ympbuild

@@ -22,7 +22,8 @@ build(){
 }
 
 package(){
-      make RAISE_SETFCAP=no lib=lib64/libcap prefix=/usr install
+    make RAISE_SETFCAP=no lib=lib64/libcap prefix=/usr install
+    mkdir -p ${DESTDIR}/etc/ld.so.conf.d/
     echo "/usr/lib64/libcap/" > ${DESTDIR}/etc/ld.so.conf.d/libcap.conf
 }