I juste installed apxs bin with the httpd24-httpd-devel-2.4.6-16.el6.x86_64 package.

I need it to compile PHP with Apache module.

When I launch the command apxs --help I get the following error:

cannot open /httpd/build/config_vars.mk: No such file or directory at /opt/rh/httpd24/root/usr/bin/apxs line 214

I locate this file into /opt/rh/httpd24/root/usr/lib64/httpd/build/, should I add this folder to my PATH or is there a way to tell Apache to look at this directory?

  • This may be a problem with the way that it was packaged. You should contact your Red Hat rep to open a support case. Nov 25, 2014 at 13:21

2 Answers 2


This is the problem with SCL package httpd24-httpd-devel. There was already bug for standard CentOS/RedHat rpm which was fixed.

Since apxs is a perl script if you take a look inside it, this is the responsible code:

my $libdir = `pkg-config --variable=libdir apr-1`;
chomp $libdir;

my $installbuilddir = $libdir . "/httpd/build";

What you also can do is change the $installbuilddir variable to:

my $installbuilddir = '/opt/rh/httpd24/root/usr/lib64' . "/httpd/build";

Just make sure you modify the httpd24 apxs, which is available at /opt/rh/httpd24/root/usr/bin/apxs, and not the orig one (/usr/sbin/apxs).

If you don't want to modify apxs, this quick fix would work also:

cd /
ln -s /opt/rh/httpd24/root/usr/lib64/httpd .
  • This is a bad idea. The issue is sudo make install is destroying the path, and the wrong pkg-config gets called. See my answer. Mar 6, 2015 at 21:18

Are you doing sudo make install from inside a scl enable httpd24 bash? This resets $PATH to the default. You need to instead do:

sudo scl enable httpd24 perl516 'make install'

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