Greetings,
we are developing Linux kernel modules outside the kernel tree (for good
reasons), and use autoconf to set up our source tree. We need to adapt
to the ever-changing kernel interfaces and structures.
The usual autooconf stuff, of course - the problem is that the
AC_TRY_COMPILE macros do not work because I failed so far to get this to
work reliable (proper CPPFLAGS, CFLAGS setting) for the kernel headers.
We are working around this using sed-constructs to check for things in
the known header files. Of course, letting the preprocessor/compiler do
this would be more reliable. I.e., what has been a function could be a
macro in the next version, etc.
Does anyone have a recipe to make such tests work? What is needed is
- either a way to set up things for AC_TRY_COMPILE and friends to work
- or (the better solution) define macros that try to compile/link a test
kernel module using the native Linux kernel build system.
Joachim
--
Joachim Worringen, Software Architect, Dolphin Interconnect Solutions
phone ++49/(0)228/324 08 17 - http://www.dolphinics.com
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