cmake: Add missed Boost::headers #34103

1. 
   hebasto commented at 2:44 pm on December 18, 2025: member

   On Fedora 43:

    0$ gmake -C depends NO_LIBEVENT=1 NO_QT=1 NO_ZMQ=1 NO_WALLET=1 NO_USDT=1 NO_IPC=1
    1$ cmake -B build -DBoost_ROOT=depends/x86_64-pc-linux-gnu --preset dev-mode
    2<snip>
    3[363/1092] Building CXX object src/ipc/CMakeFiles/bitcoin_ipc.dir/capnp/mining.cpp.o
    4FAILED: [code=1] src/ipc/CMakeFiles/bitcoin_ipc.dir/capnp/mining.cpp.o 
    5/usr/bin/ccache /usr/lib64/ccache/c++ -DKJ_USE_FIBERS -I/home/hebasto/dev/bitcoin/build/src -I/home/hebasto/dev/bitcoin/src -I/home/hebasto/dev/bitcoin/build/src/ipc -I/home/hebasto/dev/bitcoin/src/ipc/libmultiprocess/include -I/home/hebasto/dev/bitcoin/build/src/ipc/libmultiprocess/include -I/home/hebasto/dev/bitcoin/src/univalue/include -O2 -g -std=c++20 -fPIC -pthread -fno-extended-identifiers -fdebug-prefix-map=/home/hebasto/dev/bitcoin/src=. -fmacro-prefix-map=/home/hebasto/dev/bitcoin/src=. -fstack-reuse=none -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3 -Wstack-protector -fstack-protector-all -fcf-protection=full -fstack-clash-protection -Wall -Wextra -Wformat -Wformat-security -Wvla -Wredundant-decls -Wdate-time -Wduplicated-branches -Wduplicated-cond -Wlogical-op -Woverloaded-virtual -Wsuggest-override -Wimplicit-fallthrough -Wunreachable-code -Wbidi-chars=any -Wundef -Wleading-whitespace=spaces -Wtrailing-whitespace=any -Wno-unused-parameter -MD -MT src/ipc/CMakeFiles/bitcoin_ipc.dir/capnp/mining.cpp.o -MF src/ipc/CMakeFiles/bitcoin_ipc.dir/capnp/mining.cpp.o.d -o src/ipc/CMakeFiles/bitcoin_ipc.dir/capnp/mining.cpp.o -c /home/hebasto/dev/bitcoin/src/ipc/capnp/mining.cpp 
    6In file included from /home/hebasto/dev/bitcoin/src/node/miner.h:13,
    7                 from /home/hebasto/dev/bitcoin/src/ipc/capnp/mining-types.h:12,
    8                 from /home/hebasto/dev/bitcoin/src/ipc/capnp/mining.cpp:5:
    9/home/hebasto/dev/bitcoin/src/txmempool.h:28:10: fatal error: boost/multi_index/hashed_index.hpp: No such file or directory
   10   28 | #include <boost/multi_index/hashed_index.hpp>
   11      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   12compilation terminated.
   13<snip>
   

   This PR fixes the issue.

2. cmake: Add missed `Boost::headers` 11e029dcc6
3. hebasto added the label Build system on Dec 18, 2025
4. 
   DrahtBot commented at 2:44 pm on December 18, 2025: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/34103.

   Reviews

   See the guideline for information on the review process. A summary of reviews will appear here.

5. 
   fanquake commented at 4:27 pm on December 19, 2025: member

   I can’t recreate using the steps provided. At 5e7931af35732d1c0474f9e9d1adf270b850bd28:

    0# uname -a
    1Linux fedora-32gb-hel1-3 6.18.0-65.fc44.aarch64 <snip>aarch64 GNU/Linux
    2# gmake -C depends NO_LIBEVENT=1 NO_QT=1 NO_ZMQ=1 NO_WALLET=1 NO_USDT=1 NO_IPC=1
    3<snip>
    4copying packages: boost
    5to: /root/ci_scratch/depends/aarch64-unknown-linux-gnu
    6To build Bitcoin Core with these packages, pass '--toolchain /root/ci_scratch/depends/aarch64-unknown-linux-gnu/toolchain.cmake' to the first CMake invocation.
    7# cmake -B build -DBoost_ROOT=depends/aarch64-unknown-linux-gnu --preset dev-mode
    8<snip>
    9-- Generating done (0.3s)
   10-- Build files have been written to: /root/ci_scratch/build
   11# cmake --build build -j16
   12<snip>
   13[101%] Linking CXX executable ../../bin/test_bitcoin
   14[101%] Built target test_bitcoin
   

6. 
   hebasto commented at 4:31 pm on December 19, 2025: member

   I can’t recreate using the steps provided. At 5e7931a:

   I forgot to mention that the boost-devel package was not installed. My apologies.

7. 
   fanquake commented at 4:35 pm on December 19, 2025: member

   Why does the presence of a system package make a difference to compilation, if CMake has been explicitly configured to only take headers from Boost in depends?
8. 
   hebasto commented at 4:44 pm on December 19, 2025: member

   Why does the presence of a system package make a difference to compilation, if CMake has been explicitly configured to only take headers from Boost in depends?

   Because the /usr/include path, where system’s boost headers reside, is included by the compiler implicitly.

9. 
   hebasto commented at 10:17 pm on December 23, 2025: member

   Closing in favour of #34143.
10. hebasto closed this on Dec 23, 2025

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hebasto DrahtBot fanquake

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