On Dec 4, 2025, at 11:25 AM, Marshall Clow <mclow.lists@gmail.com> wrote:
The first release candidates for the 1.90.0 release are now available at: <https://archives.boost.io/release/1.90.0/source/>
The SHA256 checksums are as follows:
5e93d582aff26868d581a52ae78c7d8edf3f3064742c6e77901a1f18a437eea9 /boost_1_90_0_rc1.tar.gz 78413237decc94989bffd4c5e213cc4bf49ad32db3ed1efd1f2283bd6fb695b2 /boost_1_90_0_rc1.7z 49551aff3b22cbc5c5a9ed3dbc92f0e23ea50a0f7325b0d198b705e8ee3fc305 /boost_1_90_0_rc1.tar.bz2 bdc79f179d1a4a60c10fe764172946d0eeafad65e576a8703c4d89d49949973c /boost_1_90_0_rc1.zip
As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy.
I have successfully built the boost libraries on an M4Pro Mac with Apple clang version 17.0.0 (clang-1700.4.4.1) For C++11/14/17/20/23/2C There were a *lot* of "warning: -single_module is obsolete” in the logs. It appeared about 35 times per language level. Example: clang-darwin.link.dll bin.v2/libs/atomic/build/clang-darwin-17/release/arm_64/cxxstd-20-iso/threading-multi/visibility-hidden/libboost_atomic.dylib ld: warning: -single_module is obsolete — Marshall