--- CMakeLists.txt.orig 2020-12-17 22:57:53.000000000 -0500 +++ CMakeLists.txt 2020-12-17 22:58:49.000000000 -0500 @@ -146,14 +146,6 @@ add_definitions(-DWIN32) elseif (APPLE) message("Target OS : Mac OS X") - # to be compatible back to Mac OS X 10.7 - if (IQTREE_FLAGS MATCHES "oldmac") - add_definitions("-mmacosx-version-min=10.5") - set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -mmacosx-version-min=10.5") - else() - add_definitions("--target=x86_64-apple-macos10.7") - set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --target=x86_64-apple-macos10.7") - endif() SET(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES}) elseif (UNIX) message("Target OS : Unix")