cannot run apxs

The error faced when compiling PHP module to Apache2.

Sorry, I cannot run apxs.  Possible reasons follow:

1. Perl is not installed
2. apxs was not found. Try to pass the path using –with-apxs2=/path/to/apxs
3. Apache was not built using –enable-so (the apxs usage page is displayed)

The output of /usr/local/apache/bin/apxs follows:
./configure: /usr/local/apache/bin/apxs: /replace/with/path/to/perl/interpreter: bad interpreter: No such file or directory
configure: error: Aborting

Replace first line of /usr/local/apache/bin/apxs from,

#!/replace/with/path/to/perl/interpreter

with

#!/usr/bin/perl -w