Can I compile on OSX Tahoe? #33733

Is there an existing issue for this?

• I have searched the existing issues

Current behaviour

I recently upgraded my OS to Mac OSX Tahoe 26.0.1 (25A362)

Step 1: Success

git clone ssh://github.com/bitcoin/bitcoin.git

Step 2: Success

cmake -B build -DENABLE_IPC=OFF -DBUILD_GUI=OFF -DWITH_QRENCODE=OFF

Step 3: Fails

cmake --build build

The default clang was from homebrew which also failed but then I switched to XCode clang and still fails :joy:

Expected behaviour

Get a compiled bitcoind ❤️

Steps to reproduce

Step 1: Success

git clone ssh://github.com/bitcoin/bitcoin.git

Step 2: Success

cmake -B build -DENABLE_IPC=OFF -DBUILD_GUI=OFF -DWITH_QRENCODE=OFF

Step 3: Fails

cmake --build build

Relevant log output

Hit the length limit so here's the URL https://gist.github.com/umrashrf/5302d7db0fe3e613d4ca94861eab452b

How did you obtain Bitcoin Core

Compiled from source

What version of Bitcoin Core are you using?

zsh: command not found: bitcoind

Operating system and version

MaxOS Tahoe 26.0.1 (25A362)

Machine specifications

Clang Version

% clang --version
Apple clang version 17.0.0 (clang-1700.3.19.1)
Target: arm64-apple-darwin25.0.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

Homebrew Dependencies

% brew info cmake boost pkgconf libevent capnp
==> cmake: stable 4.1.2 (bottled), HEAD
Cross-platform make
https://www.cmake.org/
Installed
/opt/homebrew/Cellar/cmake/4.1.2 (3,913 files, 59.0MB) *
  Poured from bottle using the formulae.brew.sh API on 2025-10-25 at 12:17:51
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/c/cmake.rb
License: BSD-3-Clause
==> Options
--HEAD
	Install HEAD version
==> Caveats
To install the CMake documentation, run:
  brew install cmake-docs
==> Analytics
install: 142,737 (30 days), 415,117 (90 days), 1,567,236 (365 days)
install-on-request: 106,081 (30 days), 317,265 (90 days), 1,206,009 (365 days)
build-error: 2,193 (30 days)

==> boost: stable 1.89.0 (bottled), HEAD
Collection of portable C++ source libraries
https://www.boost.org/
Installed
/opt/homebrew/Cellar/boost/1.89.0 (16,214 files, 348.0MB) *
  Poured from bottle using the formulae.brew.sh API on 2025-10-25 at 12:17:55
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/b/boost.rb
License: BSL-1.0
==> Dependencies
Required: icu4c@77, xz, zstd
==> Options
--HEAD
	Install HEAD version
==> Analytics
install: 31,894 (30 days), 108,486 (90 days), 586,596 (365 days)
install-on-request: 11,761 (30 days), 42,580 (90 days), 254,592 (365 days)
build-error: 60 (30 days)

==> pkgconf: stable 2.5.1 (bottled), HEAD
Package compiler and linker metadata toolkit
https://github.com/pkgconf/pkgconf
Installed
/opt/homebrew/Cellar/pkgconf/2.5.1 (28 files, 521.5KB) *
  Poured from bottle using the formulae.brew.sh API on 2025-07-12 at 17:51:14
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/p/pkgconf.rb
License: ISC
==> Options
--HEAD
	Install HEAD version
==> Analytics
install: 193,222 (30 days), 489,560 (90 days), 1,999,656 (365 days)
install-on-request: 104,564 (30 days), 244,676 (90 days), 836,900 (365 days)
build-error: 212 (30 days)

==> libevent: stable 2.1.12 (bottled)
Asynchronous event library
https://libevent.org/
Installed
/opt/homebrew/Cellar/libevent/2.1.12_1 (57 files, 2.2MB) *
  Poured from bottle using the formulae.brew.sh API on 2024-05-11 at 19:13:14
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/lib/libevent.rb
License: BSD-3-Clause
==> Dependencies
Build: autoconf, automake, libtool, pkgconf
Required: openssl@3
==> Analytics
install: 58,116 (30 days), 185,092 (90 days), 671,699 (365 days)
install-on-request: 394 (30 days), 1,302 (90 days), 7,444 (365 days)
build-error: 0 (30 days)

==> capnp: stable 1.2.0 (bottled), HEAD
Data interchange format and capability-based RPC system
https://capnproto.org/
Installed
/opt/homebrew/Cellar/capnp/1.2.0 (145 files, 16MB) *
  Poured from bottle using the formulae.brew.sh API on 2025-10-25 at 12:18:05
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/c/capnp.rb
License: MIT
==> Dependencies
Build: cmake
==> Options
--HEAD
	Install HEAD version
==> Analytics
install: 1,585 (30 days), 4,577 (90 days), 18,064 (365 days)
install-on-request: 1,381 (30 days), 4,119 (90 days), 16,719 (365 days)
build-error: 1 (30 days)

What is the configure summary, before you start to compile? (The output of cmake -B build -DENABLE_IPC=OFF -DBUILD_GUI=OFF -DWITH_QRENCODE=OFF)

What is your XCode version?

You are certainly not using the brew installed boost lib.

What other boost libs are on your system?

@maflcko ran configure again and here's the output https://gist.github.com/umrashrf/6a63476cce762e00a4f45603837c5bda

I just opened XCode and it asked me to install it. Still fails to build after installation.

New logs: https://gist.github.com/umrashrf/0714372957165e0264c8854d0060f660

XCode version: 26.0.1 (17A400)

Boost libs https://gist.github.com/umrashrf/b6c49a51c6607a8f2760e756570ad86e

@umrashrf

Could you please post the output of the following command:

rm -rf build && cmake -B build -DENABLE_IPC=OFF -DBUILD_GUI=OFF -DWITH_QRENCODE=OFF -LA 2>&1 | grep -i boost

?

@hebasto I first put the output to a file so I can resue it later.

% cat configure.log.3 | grep -i boost
-- Performing Test NO_DIAGNOSTICS_BOOST_NO_CXX98_FUNCTION_BASE
-- Performing Test NO_DIAGNOSTICS_BOOST_NO_CXX98_FUNCTION_BASE - Failed
Boost_DIR:PATH=/opt/homebrew/opt/boost/lib/cmake/Boost-1.89.0
boost_headers_DIR:PATH=/opt/homebrew/opt/boost/lib/cmake/boost_headers-1.89.0

@umrashrf

I have a guess, and to confirm it, I'd ask you to try configuring and building with the additional -DENABLE_WALLET=OFF option.

@hebasto tried that but fails.

configure.log https://gist.github.com/umrashrf/691047f40e17b7ca06abce2d25375323 build.log https://gist.github.com/umrashrf/019e10e3fca1c6a686b556c7a6b65ce2

-L/opt/homebrew/opt/llvm@14

this is too old, you need at least version 17. Do a general brew upgrade on the system and retry, I have the same OSx, it should work.

@l0rinc still fails

1. brew upgrade
2. brew reinstall boost
3. use clang from homebrew (update $PATH)
4. configure logs https://gist.github.com/umrashrf/6ca23317de227f3c8173a0031ced26f8
5. build logs https://gist.github.com/umrashrf/d4e0ef25921f78fe9fc8909bff043ccb

Seems the llvm upgrade was successful, but you still have two boost installations, try removing the old one.

I feel a bit stupid as I just did git pull and it brought some new changes.

Anyway I am still struggling to build successfully. @l0rinc you gave me a good tip. It's using /usr/local/include/boost/ instead of /opt/homebrew/Cellar/boost/1.89.0/include/boost/

Any idea how can switch boost? I have already tried Boost_ROOT and other variables.

Oh looks like I made some progress by using:

rm -rf build
cmake -B build \
    -DCMAKE_C_COMPILER=/opt/homebrew/opt/llvm/bin/clang \
    -DCMAKE_CXX_COMPILER=/opt/homebrew/opt/llvm/bin/clang++ \
    -DENABLE_IPC=OFF \
    -DBUILD_GUI=OFF \
    -DWITH_QRENCODE=OFF \
    -DENABLE_WALLET=OFF

configure logs: https://gist.github.com/umrashrf/dabd3c476da9fa727add2db1522bf3c7

It failed but with a different error.

Build logs: https://gist.github.com/umrashrf/919fbed81177e5829b16bddea6220aae

Doing the following fixed the issue!

export LDFLAGS="-L$(brew --prefix llvm)/lib/c++"
export CXXFLAGS="-I$(brew --prefix llvm)/include"

Build success 100%