Most build variables for httpd are used via APACHE_SUBST, which means
they get added to build/config_vars.mk.
A) Where to define them?
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There are two places, were a lot of ariables are added via APACHE_SUBST:
1) Macro APACHE_GEN_CONFIG_VARS
Defined in acinclude.m4 and called in configure.in.
It contains 75 calls to APACHE_SUBST.
2) Directly in configure.in
It contains about 21 calls to APACHE_SUBST.
Is there any concept, whether APACHE_SUBST for a new variable should be
put into APACHE_GEN_CONFIG_VARS or directly into configure.in?
I can see that the ones in the macro will be included last into
config_vars.mk, but apart from that any rules?
B) Should they be installed?
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The script build/config_vars.sh deletes a lot of variables before
installing build/config_vars.mk. Is there any concept, which variables
should get installed, and which ones should be removed before installing
the file?
Regards,
Rainer
