/usr/bin/apxs --help — Chainguard OS Manuals

From apache2 2.4.70-r0 (os), captured 2026-11-07 by running apxs --help (exit 1). permalink

apxs:Error: Unknown option: -.
apxs:Error: Unknown option: h.
Usage: apxs -g [-S <var>=<val>] -n <modname>
       apxs -q [-v] [-S <var>=<val>] [<query> ...]
       apxs -c [-S <var>=<val>] [-o <dsofile>] [-D <name>[=<value>]]
               [-I <incdir>] [-L <libdir>] [-l <libname>] [-Wc,<flags>]
               [-Wl,<flags>] [-p] <files> ...
       apxs -i [-S <var>=<val>] [-a] [-A] [-n <modname>] <dsofile> ...
       apxs -e [-S <var>=<val>] [-a] [-A] [-n <modname>] <dsofile> ...

Options (17)

Option	Description	Source
`-n` modname	This explicitly sets the module name for the -i (install) and -g (template generation) option.	man
`-q`	Performs a query for variables and environment settings used to build httpd.	man
`-S` name=value	This option changes the apxs settings described above.	man
`-g`	This generates a subdirectory name (see option -n) and there two files: A sample module source file named mod_name.c which can be used as a template for creating your own modules or as a quick start…	man
`-c`	This indicates the compilation operation.	man
`-o` dsofile	Explicitly specifies the filename of the created dynamically shared object.	man
`-D` name=value	This option is directly passed through to the compilation command(s).	man
`-I` incdir	This option is directly passed through to the compilation command(s).	man
`-L` libdir	This option is directly passed through to the linker command.	man
`-l` libname	This option is directly passed through to the linker command.	man
`-Wc`	This option passes compiler-flags as additional flags to the libtool --mode=compile command.	man
`-Wl`	This option passes linker-flags as additional flags to the libtool --mode=link command.	man
`-p`	This option causes apxs to link against the apr/apr-util libraries.	man
`-i`	This indicates the installation operation and installs one or more dynamically shared objects into the server's modules directory.	man
`-a`	This activates the module by automatically adding a corresponding LoadModule line to Apache's httpd.conf configuration file, or by enabling it if it already exists.	man
`-A`	Same as option -a but the created LoadModule directive is prefixed with a hash sign (#), i.e., the module is just prepared for later activation but initially disabled.	man
`-e`	This indicates the editing operation, which can be used with the -a and -A options similarly to the -i operation to edit Apache's httpd.conf configuration file without attempting to install the…	man

Examples (11) from the manual page, untested

apxs -c mod_foo.c
Assume you have an Apache module named mod_foo.c available which should extend Apache's server functionality.
_
Assume you have an Apache module named mod_foo.c available which should extend Apache's server functionality.
apxs -i -a mod_foo.la
Then you have to update the Apache configuration by making sure a LoadModule directive is present to load this shared object.
_
Then you have to update the Apache configuration by making sure a LoadModule directive is present to load this shared object.
LoadModule foo_module modules/mod_foo.so
This way a line named
apxs -i -A mod_foo.c
is added to the configuration file if still not present.
apxs -g -n foo
For a quick test of the apxs mechanism you can create a sample Apache module template plus a corresponding Makefile via:
_
For a quick test of the apxs mechanism you can create a sample Apache module template plus a corresponding Makefile via:
cd foo
Then you can immediately compile this sample module into a shared object and load it into the Apache server:
make all reload
Then you can immediately compile this sample module into a shared object and load it into the Apache server:
_
Then you can immediately compile this sample module into a shared object and load it into the Apache server:

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