Tools

There are a number of options available when choosing tools to build an Apache module for MPE/iX. Some of these tools are open source tools from the GNU Project, a provider of free software. The GNU tools are used on many operating system platforms for development of open source code, including MPE/iX.

Module compilations on MPE/iX can be done with the GNU C compiler, gcc, or with the MPE/iX POSIX compiler, c89. HP recommends using gcc for compiling open source modules since most open source code is designed for compilation by gcc. For example, Apache for MPE/iX is compiled with gcc. Use c89 when calling MPE/iX intrinsics or using long pointers.

When using a Makefile to build a module, it can be executed with GNU make or with the MPE/iX POSIX make. GNU make is recommended for executing a Makefile created by apxs since this file is generated by open source code. The GNU tools' installation script installs GNU make in /usr/local/bin/make. MPE/iX make resides in /bin/make.

Modules can be lined with GNU ld or with the MPE/iX LinkEditor. HP recommends using LinkEditor for linking Apache modules since the LinkEditor creates shared libraries that work well with dynamic loading.

Make, gcc, and ld are part of the GNU tools which are downloadable from http://jazz.external.hp.com/src/gnu/gnuframe.html. Support contracts for gcc are available from http://www.gccsupport.com. LinkEditor, c89 and /bin/make are supported by HP.

The Apache C header files are required when compiling an Apache module. These header files are distributed with the Apache product and reside in /APACHE/PUB/include.