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Update compilation notes to indicate that uECC.c must be compiled with your desired curve and asm settings.

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Ken MacKay
2014-08-26 08:41:35 -07:00
parent 0cc749efa1
commit 917ab8375e
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README.md
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@@ -34,6 +34,7 @@ See uECC.h for documentation for each function.
### Compilation Notes ###
* Should compile with any C/C++ compiler that supports stdint.h (this includes Visual Studio 2013).
* If you want to change the defaults for `uECC_CURVE` and `uECC_ASM`, you must change them in your Makefile or similar so that uECC.c is compiled with the desired values (ie, compile uECC.c with `-DuECC_CURVE=uECC_secp256r1` or whatever).
* When compiling for a Thumb-1 platform with inline assembly enabled (ie, `uECC_ASM` is defined to `uECC_asm_small` or `uECC_asm_fast`), you must use the `-fomit-frame-pointer` GCC option (this is enabled by default when compiling with `-O1` or higher).
* When compiling for AVR with inline assembly enabled, you must have optimizations enabled (compile with `-O1` or higher).
* When building for Windows, you will need to link in the `advapi32.lib` system library.