Hi Everyone, Please help!!!! I am trying to compile boost library with dev-cpp. It does not compile and gives many errors. I can use the filesystem library as it does not require pre compilation. But I want to use regex and test suite library. Boost.Python error is fine. But other library also do not compile. I have followed the documentation and set the enviroment variables to C:\projects\boost> C:\projects\boost>set path=c:\dev-cpp\bin C:\projects\boost>set MINGW_ROOT_DIRECTORY=c:\dev-cpp C:\projects\boost>set MINGW_BIN_DIRECTORY=c:\dev-cpp\bin C:\projects\boost>set MINGW_INCLUDE_DIRECTORY=c:\dev-cpp\include C:\projects\boost>set MINGW_STDLIB_DIRECTORY=c:\dev-cpp\lib I receive more than 3000 lines in error some of them are attached: --------------------------------------------------------------------- skipping Boost.Python library build due to missing or incorrect configuration couldn't find Python.h in "c:/tools/python/include" You can configure the location of your python installation by setting: PYTHON_ROOT - currently "c:/tools/python" PYTHON_VERSION - The 2-part python Major.Minor version number (e.g. "2.2", NOT "2.2.1") - currently "2.2" The following are automatically configured from PYTHON_ROOT if not otherwise set: PYTHON_LIB_PATH - path to Python library object; currently "c:/tools/python/libs" --------------------------------------------------------------------- ...found 5655 targets... ...updating 558 targets... gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\greg_month .obj c:\dev-cpp\bin\g++ -c -Wall -ftemplate-depth-100 - DBOOST_DATE_TIME_POSIX_TIME_STD_CONFIG - DBOOST_ALL_DYN_LINK=1 -g -O0 -fno-inline -mno-cygwin - I"bin\boost\libs\date_time\build" -I "C:\projects\boost" -I "c:\dev-cpp\include" -o "bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\greg_mont h.obj" "C:/projects/boost/libs/date_time/build/../src/gregorian/greg_month.cpp" ...failed gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\greg_month .obj... gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\greg_week day.obj c:\dev-cpp\bin\g++ -c -Wall -ftemplate-depth-100 - DBOOST_DATE_TIME_POSIX_TIME_STD_CONFIG - DBOOST_ALL_DYN_LINK=1 -g -O0 -fno-inline -mno-cygwin - I"bin\boost\libs\date_time\build" -I "C:\projects\boost" -I "c:\dev-cpp\include" -o "bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\greg_week day.obj" "C:/projects/boost/libs/date_time/build/../src/gregorian/greg_weekday.cpp" ...failed gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\greg_week day.obj... gcc-C++-action bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\date_gener ators.obj c:\dev-cpp\bin\g++ -c -Wall -ftemplate-depth-100 - DBOOST_DATE_TIME_POSIX_TIME_STD_CONFIG - DBOOST_ALL_DYN_LINK=1 -g -O0 -fno-inline -mno-cygwin - I"bin\boost\libs\date_time\build" -I "C:\projects\boost" -I "c:\dev-cpp\include" -o "bin\boost\libs\date_time\build\boost_date_time.dll\mingw\debug\date_gener ators.obj" "C:/projects/boost/libs/date_time/build/../src/gregorian/date_generators.cpp" ...failed gcc-C++-action Thanks with best regards, Vikrant