27 lines
1.2 KiB
YAML
27 lines
1.2 KiB
YAML
define: DUK_OPT_HAVE_CUSTOM_H
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introduced: 1.0.0
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deprecated: 1.3.0
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tags:
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- portability
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description: >
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Normally you define DUK_OPT_xxx feature options and the autodetecting
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duk_config.h (previously internal duk_features.h.in) header resolves
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these with platform/compiler constraints to determine effective compilation
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options for Duktape internals. The effective options are provided as
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DUK_USE_xxx defines which you normally never see.
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If you define DUK_OPT_HAVE_CUSTOM_H, Duktape will include "duk_custom.h"
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after determining the appropriate DUK_USE_xxx defines but before compiling
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any code. The duk_custom.h header, which you provide, can then tweak the
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active DUK_USE_xxx defines freely. See duk_config.h and genconfig option
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metadata for the available defines.
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This approach is useful when the DUK_OPT_xxx feature options don't
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provide enough flexibility to tweak the build. The downside is that you can
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easily create inconsistent DUK_USE_xxx flags, the customization header
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will be version specific, and you need to peek into Duktape internals to
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know what defines to tweak.
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NOTE: This option is deprecated. The preferred method for customization
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starting from Duktape 1.3.0 is to create/modify a "duk_config.h" header.
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