@@ -10,22 +10,22 @@ $(package)_config_opts_debug=variant=debug
1010$(package ) _config_opts=--layout=tagged --build-type=complete --user-config=user-config.jam
1111$(package ) _config_opts+=threading=multi link=static -sNO_BZIP2=1 -sNO_ZLIB=1
1212
13+ # ====== per-platform extra options ======
1314$(package ) _config_opts_linux=threadapi=pthread runtime-link=shared
1415
15- # macOS: tell b2 to use clang toolset (flags come from user-config.jam)
16- $(package ) _config_opts_darwin=toolset=clang runtime-link=shared
16+ # macOS: use the 'darwin' toolset, runtime shared
17+ $(package ) _config_opts_darwin=toolset=darwin runtime-link=shared
1718
1819$(package ) _config_opts_mingw32=binary-format=pe target-os=windows threadapi=win32 runtime-link=static
19-
2020$(package ) _config_opts_x86_64_mingw32=address-model=64
2121$(package ) _config_opts_i686_mingw32=address-model=32
2222$(package ) _config_opts_i686_linux=address-model=32 architecture=x86
2323
2424$(package ) _toolset_$(host_os ) =gcc
2525$(package ) _archiver_$(host_os ) =$($(package ) _ar)
2626
27- # darwin toolset override (for other uses)
28- $(package ) _toolset_darwin=clang
27+ # darwin “preferred” toolset name
28+ $(package ) _toolset_darwin=darwin
2929$(package ) _archiver_darwin=$($(package ) _ar)
3030
3131boost_toolset_darwin=$($(package ) _toolset_darwin)
@@ -36,7 +36,7 @@ $(package)_config_libraries=chrono,filesystem,program_options,system,thread
3636$(package ) _cxxflags=-std=c++11 -fvisibility=hidden
3737$(package ) _cxxflags_linux=-fPIC
3838
39- # BOOST “FIX” FOR MISSING STANDARD HEADERS (used mainly on macOS)
39+ # macOS cross needs explicit sysroot and linker syslibroot
4040$(package ) _cppflags+= --sysroot=$(OSX_SDK_PATH )
4141$(package ) _cflags+= --sysroot=$(OSX_SDK_PATH )
4242$(package ) _ldflags+= -Wl,-syslibroot,$(OSX_SDK_PATH )
@@ -46,13 +46,14 @@ endef
4646# PREPROCESS — Generate user-config.jam
4747# ==================================================================
4848
49+ # On macOS we use the 'darwin' toolset and the cross CXX from depends
4950ifeq ($(host_os ) ,darwin)
5051
5152define $(package)_preprocess_cmds
52- echo "using clang : : $($( package ) _cxx ) \
53+ echo "using darwin : : $(host_CXX ) \
5354 : <cxxflags>\"$($(package ) _cxxflags) $($(package ) _cppflags) -stdlib=libc++ -isystem$(OSX_SDK_PATH ) /usr/include/c++/v1\" \
5455 <linkflags>\"$($(package ) _ldflags) -stdlib=libc++\" \
55- <archiver>\"$($( package ) _ar ) \" \
56+ <archiver>\"$(host_AR ) \" \
5657 <ranlib>\"$(host_RANLIB ) \" \
5758 <striper>\"$(host_STRIP ) \" \
5859 ;" > user-config.jam
@@ -73,22 +74,16 @@ endef
7374endif
7475
7576# ==================================================================
76- # CONFIG — Patch: Force --with-toolset=clang on macOS
77+ # CONFIG — IMPORTANT: no --with-toolset on macOS
7778# ==================================================================
7879
79- ifeq ($(host_os ) ,darwin)
80-
81- define $(package)_config_cmds
82- ./bootstrap.sh --with-toolset=clang --without-icu --with-libraries=$(boost_config_libraries )
83- endef
84-
85- else
86-
8780define $(package)_config_cmds
8881 ./bootstrap.sh --without-icu --with-libraries=$(boost_config_libraries )
8982endef
9083
91- endif
84+ # ==================================================================
85+ # BUILD + INSTALL
86+ # ==================================================================
9287
9388define $(package)_build_cmds
9489 ./b2 -d2 -j2 -d1 --prefix=$($(package ) _staging_prefix_dir) $($(package ) _config_opts) stage
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