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mbedtls/docs/3.0-migration-guide.d/split_config.md
Bence Szépkúti 60c863411c Remove references to MBEDTLS_USER_CONFIG_VERSION 
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-06-28 09:28:48 +01:00

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Introduce a level of indirection and versioning in the config files

config.h was split into build_info.h and mbedtls_config.h. build_info.h is intended to be included from C code directly, while mbedtls_config.h is intended to be edited by end users wishing to change the build configuration, and should generally only be included from build_info.h. This is because all the preprocessor logic has been moved into build_info.h, including the handling of the MBEDTLS_CONFIG_FILE macro.

A config file version symbol, MBEDTLS_CONFIG_VERSION was introduced. Defining it to a particular value will ensure that mbedtls interprets the config file in a way that's compatible with the config file format used by the mbedtls release whose MBEDTLS_VERSION_NUMBER has the same value. The only value supported by mbedtls 3.0.0 is 0x03000000.