I'm trying to compile Boost 1.36.0 with Microsoft Visual Studio 9.0 for Windows Mobile 5. Unfortunately, I'm getting a compile error on the system library (below). Can anybody suggest what I may be doing wrong? The command line I'm using to compile boost is: C:\boost\boost_1_36_0>bjam --without-python --without-mpi msvc-WM5/variant=debug,release/threading=multi/*stdlib*=stlport/link=shared,static/runtime-link=static stage The output from the -d2 flag, as it relates to the System library is: file bin.v2\libs\system\build\msvc-WM5\debug\link-static\runtime-link-static\* stdlib*-stlport\threading-multi\error_code.obj.rsp "libs\system\src\error_code.cpp" -Fo"bin.v2\libs\system\build\msvc-WM5\debug\link-static\runtime-link-static\ *stdlib*-stlport\threading-multi\error_code.obj" -TP /Z7 /Od /Ob0 /W3 /GR /MTd /Zc:forScope /Zc:wchar_t /wd4675 /EHs -D_CRT_SECURE_NO_WARNINGS -D_WIN32_WCE=0x501 -DUNDER_CE=0x501 -DWIN32_WCE_PSPC -D_MSC_VER=1500 -DWINCE -DARM -D_ARM_ -DARMV4I -D_LITTLE_ENDIAN -DUNICODE -D_UNICODE -DPOCKETPC2003_UI_MODEL -c -DBOOST_ALL_NO_LIB=1 -DBOOST_SYSTEM_STATIC_LINK=1 -D_STLP_DEBUG=1 -D_STLP_DEBUG_UNINITIALIZED=1 "-I." "-IC:STLPortSTLport-5.1.5stlport" compile-c-c++ bin.v2\libs\system\build\msvc-WM5\debug\link-static\runtime-link-static\* stdlib*-stlport\threading-multi\error_code.obj cl /Zm800 -nologo @"bin.v2\libs\system\build\msvc-WM5\debug\link-static\runtime-link-static\* stdlib*-stlport\threading-multi\error_code.obj.rsp" error_code.cpp Unknown EVC++ compiler version - please run the configure tests and report the results libs\system\src\error_code.cpp(83) : error C2039: '*strerror*' : is not a member of '*stlpd_std*' libs\system\src\error_code.cpp(83) : error C3861: '*strerror*': identifier not found ...failed compile-c-c++ bin.v2\libs\system\build\msvc-WM5\debug\link-static\runtime-link-static\* stdlib*-stlport\threading-multi\error_code.obj... ...skipped libboost_system-vc-mt-sgdp-1_36.lib for lack of error_code.obj... ...skipped libboost_system-vc-mt-sgdp-1_36.lib for lack of libboost_system-vc-mt-sgdp-1_36.lib... For reference, my user-config.jam file: using msvc : WM5 : "cl.exe" : <compileflags>-D_CRT_SECURE_NO_WARNINGS <compileflags>-D_WIN32_WCE=0x501 <compileflags>-DUNDER_CE=0x501 <compileflags>-DWIN32_WCE_PSPC <compileflags>-D_MSC_VER=1500 <compileflags>-DWINCE <compileflags>-DARM <compileflags>-D_ARM_ <compileflags>-DARMV4I <compileflags>-D_LITTLE_ENDIAN <compileflags>-DUNICODE <compileflags>-D_UNICODE <compileflags>-DPOCKETPC2003_UI_MODEL <linkflags>/subsystem:windowsce,5.01 <linkflags>/machine:arm <linkflags>/NODEFAULTLIB:oldnames.lib <linkflags>/STACK:262144,4096 <linkflags>coredll.lib <linkflags>corelibc.lib <linkflags>ole32.lib <linkflags>oleaut32.lib <linkflags>uuid.lib <linkflags>commctrl.lib <architecture>arm <instruction-set>armv4 <interface>wince <assembler>"armasm.exe" ; using stlport : : C:\STLPort\STLport-5.1.5\stlport C:\STLPort\STLport-5.1.5\lib ; Thanks, PaulH