Both libs are header only build as CXX_MODULES
bash-5.3$ dyld_info libboost_type_index.1.90.0.dylib
libboost_type_index.1.90.0.dylib [x86_64]:
-platform:
platform minOS sdk
macOS 14.0 14.0
-segments:
load-offset segment section sect-size seg-size perm
0x00000000 __TEXT 8KB r.x
0x00001F10 __text 70
0x00001F56 __stubs 12
0x00001F62 __const 57
0x00001F9C __unwind_info 96
0x00002000 __DATA_CONST 4KB rw.
0x00002000 __got 16
0x00002010 __const 64
-dependents:
attributes load path
/usr/local/opt/llvm/lib/c++/libc++abi.1.dylib
/usr/local/opt/llvm/lib/c++/libc++.1.dylib
/usr/lib/libSystem.B.dylib
bash-5.3$ dyld_info libboost_any.1.90.0.dylib
libboost_any.1.90.0.dylib [x86_64]:
-platform:
platform minOS sdk
macOS 14.0 14.0
-segments:
load-offset segment section sect-size seg-size perm
0x00000000 __TEXT 8KB r.x
0x00001BD0 __text 768
0x00001ED0 __stubs 12
0x00001EDC __cstring 61
0x00001F19 __const 119
0x00001F90 __unwind_info 112
0x00002000 __DATA_CONST 4KB rw.
0x00002000 __got 24
0x00002018 __const 192
-dependents:
attributes load path
/usr/local/opt/llvm/lib/c++/libc++abi.1.dylib
/usr/local/opt/llvm/lib/c++/libc++.1.dylib
@rpath/libboost_type_index.1.90.0.dylib
/usr/lib/libSystem.B.dylib
bash-5.3$ dyld_info libboost_a.1.90.0.dylib
libboost_any.1.90.0.dylib libboost_any.dylib libboost_atomic.1.90.0.dylib libboost_atomic.dylib
bash-5.3$ dyld_info libboost_atomic.1.90.0.dylib
libboost_atomic.1.90.0.dylib [x86_64]:
-platform:
platform minOS sdk
macOS 14.0 14.0
-segments:
load-offset segment section sect-size seg-size perm
0x00000000 __TEXT 12KB r.x
0x00002010 __text 3370
0x00002D3A __stubs 126
0x00002DB8 __gcc_except_tab 284
0x00002ED4 __unwind_info 296
0x00003000 __DATA_CONST 4KB rw.
0x00003000 __got 184
0x00004000 __DATA 36KB rw.
0x00004000 __data 32776
0x0000C008 __bss 1
-dependents:
attributes load path
/usr/local/opt/llvm/lib/c++/libc++abi.1.dylib
/usr/local/opt/llvm/lib/c++/libc++.1.dylib
/usr/lib/libSystem.B.dylib
bash-5.3$
see too Header-only libraries and C++20 modules
and type_index/modules/boost_type_index.cppm at develop · boostorg/type_index · GitHub