build: do not request the header-only Boost.System component (build against Boost 1.70+)

Boost.System has been header-only since Boost 1.69 and its compiled stub
library was removed in newer Boost, so listing system in the requested
find_package components makes configuration fail on Boost 1.70 and up (for
example Boost 1.90 errors with "Could not find boost_system"). Boost.System
is still pulled in transitively by thread / iostreams where it is needed, so
drop it from the explicit component list.

Verified: with this change IfcOpenShell configures and builds IfcConvert
cleanly against Homebrew Boost 1.90 and OpenCASCADE 7.9.2.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Petru Conduraru
2026-07-10 18:24:14 +03:00
committed by Thomas Krijnen
parent 0d70812641
commit 7e3d2f936d
+5 -1
View File
@@ -314,8 +314,12 @@ if(WASM_BUILD)
else()
# @todo review this, shouldn't this be all possible header-only now?
# ... or rewritten using C++17 features?
# Boost.System has been header-only since 1.69 and its compiled stub library
# was dropped in newer Boost, so requesting it as a component makes
# find_package fail on Boost 1.70 and up (for example Boost 1.90). It is
# still pulled in transitively by thread / iostreams where needed, so do not
# request it explicitly.
set(BOOST_COMPONENTS
system
program_options
regex
thread