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Lars Johannsen
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As of autoconf-2.65 the AC_LANG_SOURCE source macro no longer includes the confdef.h results when expanded. To handle this simply explicitly include confdef.h in conftest.c. This will cause two copies to of confdef.h to be added to the test for earlier autoconf versions but this is not harmful. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
The Solaris Porting Layer (SPL) is a Linux kernel module which provides many of the Solaris kernel APIs. This shim layer makes it possible to run Solaris kernel code in the Linux kernel with relatively minimal modification. This can be particularly useful when you want to track upstream Solaris development closely and don’t want the overhead of maintaining a large patch which converts Solaris primitives to Linux primitives.
Documentation for building, configuring, and using the SPL can be found at: http://wiki.github.com/behlendorf/spl/