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Allow JSMN_API to be defined by the user (e. g. for Windows DLLs). #198

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Allow JSMN_API to be defined by the user (e. g. for Windows DLLs). #198

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@lx-s lx-s commented Jun 3, 2020 •
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To make jsmn part of a shared Windows-DLL, jsmn's functions have to be marked __declspec(dllexport) / __declscpec(dllimport). Functions marked as extern are - contrary to unix - not automatically exported.

Making JSMN_API user-definable (with a default fallback) makes writing wrapper such as these possible:

jsmn_dll_wrapper.c:

#ifdef _WIN32
#   define JSMN_API __declspec(dllexport)
#endif
#define JSMN_STRICT
#include "jsmn.h"

jsmn_dll_wrapper.h

#ifdef _WIN32
#  ifdef EXPORTS
#     define JSMN_API __declspec(dllexport)
#  else
#     define JSMN_API __declspec(dllimport)
#  endif
#endif
#define JSMN_HEADER
#include "jsmn.h"
#undef JSMN_HEADER

@lx-s
Check if JSMN_API has already been defined.
d02e0a8 
This enables jsmn to be built as part of a Window DLLs, by creating a wrapper header that defines JSMN_HEADER and JSMN_API=__declspec(dllexport).
@themobiusproject themobiusproject mentioned this pull request Jun 15, 2020
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@lx-s lx-s changed the title Check if JSMN_API has already been defined. Allow JSMN_API to be redefined for Windows DLLs. Jun 29, 2020
@lx-s lx-s changed the title Allow JSMN_API to be redefined for Windows DLLs. Allow JSMN_API to be defined by the user (e. g. for Windows DLLs). Jun 29, 2020
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