depends: Print ready-to-use --toolchain option for CMake invocation #31008

1. 
   hebasto commented at 12:12 pm on October 1, 2024: member

   Requested in #30997 (comment):

   P.S. it would be nice if make in depends provides the incantation needed for the configure stage.

   An example of a build log with this PR:

    0$ make --no-print-directory -C depends -j16 NO_QT=1 NO_WALLET=1 NO_UPNP=1 NO_NATPMP=1 NO_ZMQ=1 NO_USDT=1 LOG=1
    1Extracting boost...
    2/home/hebasto/git/bitcoin/depends/sources/boost_1_81_0.tar.gz: OK
    3Preprocessing boost...
    4Configuring boost...
    5Building boost...
    6Staging boost...
    7Postprocessing boost...
    8Caching boost...
    9Extracting libevent...
   10/home/hebasto/git/bitcoin/depends/sources/libevent-2.1.12-stable.tar.gz: OK
   11Preprocessing libevent...
   12Configuring libevent...
   13Building libevent...
   14Staging libevent...
   15Postprocessing libevent...
   16Caching libevent...
   17copying packages: boost libevent
   18to: /home/hebasto/git/bitcoin/depends/x86_64-pc-linux-gnu
   19To build Bitcoin Core with these packages, pass '--toolchain /home/hebasto/git/bitcoin/depends/x86_64-pc-linux-gnu/toolchain.cmake' to the first CMake invocation.
   

2. depends: Print ready-to-use `--toolchain` option for CMake invocation 605926da0a
3. hebasto added the label Build system on Oct 1, 2024
4. 
   DrahtBot commented at 12:12 pm on October 1, 2024: contributor

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5. 
   hebasto commented at 12:12 pm on October 1, 2024: member

   Friendly ping @Sjors :)
6. 
   Sjors commented at 1:06 pm on October 1, 2024: member

   tACK 605926da0ab4ac7ae4e9aed55a059f37c31c15b5
7. theuni approved
8. 
   theuni commented at 2:58 pm on October 1, 2024: member

   ACK 605926da0ab4ac7ae4e9aed55a059f37c31c15b5
9. jarolrod approved
10. 
    jarolrod commented at 6:49 pm on October 3, 2024: member

    ACK 605926da0ab4ac7ae4e9aed55a059f37c31c15b5
11. 
    pablomartin4btc commented at 5:41 pm on October 7, 2024: member

    ACK 605926da0ab4ac7ae4e9aed55a059f37c31c15b5
12. fanquake merged this on Oct 8, 2024
13. fanquake closed this on Oct 8, 2024

    ---

14. hebasto deleted the branch on Oct 8, 2024

Contributors
hebasto DrahtBot Sjors theuni jarolrod pablomartin4btc

Labels
Build system