2023-03-10 10:29:58 +00:00
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This directory contains library-description files. Each _<libname>.mk_ file
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contains the instructions for building the library _<libname>_. The .mk files
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are never used directly but they are implicitely processed by the build
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system.
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Libraries implementing one interface may have specialized implementations for
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different CPU architectures. Such architecture-specific _<libname>.mk_ files
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are located in corresponding _spec/_ subdirectories. For example, the .mk
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files of ARM-specific library variants reside in the _spec/arm/_ subdirectory.
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The build system automatically finds the appropriate _<libname>.mk_ file by
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evaluating the 'SPECS' build-configuration variable. Whenever the 'SPECS'
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variable contains 'arm', the build system considers the _spec/arm/_ directory.
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