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liboil0.3-dev - Library of Optimized Inner Loops (development headers)… more info»
***** WARNING ***** Liboil is now in maintenence-only mode. No new features will be added, and bugs will be fixed according to their severity and availablility of patches. Users of liboil are recommended to switch to Orc (http://code.entropywave.com/projects/orc/). Please contact David Schleef <email@example.com> about converting liboil functions to Orc code -- in many cases this work has already been done. ***** WARNING ***** Requirements ============ Liboil has no required dependecies (other than a decent C compiler and standard C library). A few extra tests and examples are enabled if you have glib-2.0 installed, but these extras are neither required nor installed. Using GCC is strongly recommended, since the most interesting bits of liboil are written in GCC-style inline assembly. GCC versions prior to 3.4 are not supported. Problems Compiling? =================== Function implementations in liboil are designed to be modular, so if your compiler is having difficulty compiling a particular function, simply disable it and the corresponding OIL_DEFINE_IMPL() line. ABI warning =========== Only a portion of the liboil API is ABI stable. This portion is guaranteed to be stable through the 0.3.x series, and by using a compatibility library, through the 0.4.x series as well. This policy is designed to provide almost all applications the necessary ABI stability for the symbols likely to be used in liboil. Any symbols declared by including <liboil/liboil.h> follow this ABI policy. This includes all liboil function classes as well as a limited number of core functions, such as oil_init(). Functions defined in other header files should not be used. ABI Implementation ================== The liboil-0.3.x series create the shared library liboil-0.3.so. Applications that use liboil are linked against this library, and will load liboil-0.3.so at runtime. The liboil-0.4.x series will create two shared libraries, liboil-0.4.so and a compaitiblity library liboil-0.3.so that implements functionality removed in the 0.3->0.4 transition. The 0.3 shared library will be binary compatible with the liboil-0.3.x releases. Thus, applictions compiled with a liboil-0.3.x release will continue to function after the shared library is upgraded to a 0.4.x release. Applications compiled with 0.4.x will use liboil-0.4.so directly. Distributions can use this compatibility library in order to smooth transitions between liboil major releases. For example, consider the case where AppA depends on libB and libC, and both libraries use liboil. When liboil-0.4 is released, the distro can start using it immediately, and AppA will continue to work correctly. Then, at a convenient time, libB and libC can independently be recompiled using liboil-0.4.x, and the packages will no longer depend on liboil-0.3.so. The traditional way of dealing with these changes is to migrate all packages to the new library as quickly as possible. This is unduly cumbersome.