What is depends BUILD_ID_SALT ? #28276

1. 
   maflcko commented at 6:19 am on August 16, 2023: member

   Is it unused? If not, how can it be used? If yes, can it be removed?

   References:

   0$ git grep '\<build_id\>'
   1depends/Makefile:#        they rely on the build_id variables
   2depends/Makefile:build_id:=$(shell env CC='$(build_CC)' C_STANDARD='$(C_STANDARD)' CXX='$(build_CXX)' CXX_STANDARD='$(CXX_STANDARD)' AR='$(build_AR)' RANLIB='$(build_RANLIB)' STRIP='$(build_STRIP)' SHA256SUM='$(build_SHA256SUM)' DEBUG='$(DEBUG)' LTO='$(LTO)' NO_HARDEN='$(NO_HARDEN)' ./gen_id '$(BUILD_ID_SALT)' 'GUIX_ENVIRONMENT=$(realpath $(GUIX_ENVIRONMENT))')
   

   The cache is not invalidated:

   0$ (cd depends/ && BUILD_ID_SALT=salt make boost && echo done ) 
   1done
   2$ (cd depends/ && BUILD_ID_SALT=salty make boost && echo done ) 
   3done
   

2. maflcko added the label Build system on Aug 16, 2023
3. maflcko added the label Questions and Help on Aug 16, 2023
4. maflcko closed this on Aug 17, 2023

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5. bitcoin locked this on Aug 16, 2024

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