Linker error on Mac / Apple Silicon

[erikvullings]

While trying to install tilemaker on my mac, after installing the required dependencies via brew, I still ran into a linker error. It seems that the most recent versions of boost only include boost_system as header files. All I had to do was edit the Makefile and remove the -lboost_system as part of the LIB flags.

[pa5cal]

Fix for ld: library 'boost_system' not found with Boost ≥ 1.89 (Homebrew)

With recent Boost versions (e.g. 1.90 via Homebrew), boost_system is header-only and libboost_system is no longer shipped. The current Makefile still links against -lboost_system, which causes:

ld: library 'boost_system' not found

Quick fix

Remove -lboost_system from the LIB definition in the Makefile.

Before (line 79):

LIB := -L$(PLATFORM_PATH)/lib $(LUA_LIBS) -lboost_program_options -lsqlite3 -lboost_filesystem -lboost_system -lshp -pthread

After:

LIB := -L$(PLATFORM_PATH)/lib $(LUA_LIBS) -lboost_program_options -lsqlite3 -lboost_filesystem -lshp -pthread

Then rebuild cleanly:

make clean
make

This resolves the linker error when building against modern Boost versions installed via Homebrew.