APR error

If you are using APR (Apache portable runtime) and on compilation of your code you get the following error

apr expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘apr_off_t’

Do this,

$ apr-config --cppflags --cflags

which returns the following on my system

-DLINUX=2 -D_REENTRANT -D_GNU_SOURCE -D_LARGEFILE64_SOURCE -pipe -Wall -g -O2 -pthread

Use these while compiling your code.

gcc file.c -o file -I/usr/include/apr-1.0 -lapr-1 `apr-config --cppflags --cflags`

Apache Links

Some useful links on Apache and its internals

The Apache Modelling Project .. read
Building Apache the way you want it .. read
How to install Apache, MySQL and PHP on Linux .. read
Apache 2 Modules Tutorial .. read