add ECMULT_GEN_PREC_BITS to basic_config.h #916

1. 
   voisine commented at 6:37 pm on April 10, 2021: contributor

   set ECMULT_GEN_PREC_BITS to the “auto” value of 4 in basic_config.h, so libsecp can be used without autoconf
2. add ECMULT_GEN_PREC_BITS to basic_config.h

   set ECMULT_GEN_PREC_BITS to the "auto" value of 4 in basic_config.h, so libsecp can be used without autoconf

   fe9469feb0
3. 
   real-or-random commented at 1:58 pm on April 11, 2021: contributor

   Thanks for the PR, this is indeed a bug! However, fixing it requires some more cleanup (see CI failures).

   I’m currently playing around with some options. I should have something ready by tomorrow.

4. 
   real-or-random commented at 2:02 pm on April 11, 2021: contributor

   By the way, how do you use this library without autoconf? Do you simply #include it or do you build it and then link it? In either case I’d we interested in the exact method, e.g.: How do you define your config? Do you include basic-config.h? What’s the command line?

   This could help us towards #622.

5. 
   voisine commented at 5:17 pm on April 11, 2021: contributor

   Thank you. Currently I just #include basic_config.h and then the appropriate libsecp implementations, but I eventually plan to add the source files to an external build system other than “make”
6. 
   voisine commented at 5:26 pm on April 11, 2021: contributor

   Specifically I want to be able to build using Xcode on a clean OS X install without installing additional build tools like autoconf.
7. real-or-random cross-referenced this on Apr 12, 2021 from issue Clean up configuration in gen_context by real-or-random
8. 
   jonasnick commented at 5:00 pm on April 19, 2021: contributor

   Superseded by #918 (merged)
9. jonasnick closed this on Apr 19, 2021

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10. 
    voisine commented at 10:21 pm on April 19, 2021: contributor

    Excellent. My commit even managed to survive into the final merge. Thank you.
11. voisine deleted the branch on Dec 1, 2023

Contributors
voisine real-or-random jonasnick