C:\Dev\qt\qt-5.6.2-mingw64-static-build>jom /W /S jom 1.0.14 - empower your cores jom: Entering directory 'C:\Dev\qt\qt-5.6.2-mingw64-static-build cd src\ && ( if not exist Makefile C:\Dev\qt\qt-5.6.2-mingw64-static-build\qtbase\bin\qmake C:\Dev\qt\qt-everywhere-enterprise-src-5.6.2\qtbase\src\src.pro -o Makefile ) && C:\Dev\qt\tools\jom.exe -f Makefile cd tools\bootstrap\ && ( if not exist Makefile C:\Dev\qt\qt-5.6.2-mingw64-static-build\qtbase\bin\qmake C:\Dev\qt\qt-everywhere-enterprise-src-5.6.2\qtbase\src\tools\bootstrap\bootstrap.pro -o Makefile ) && C:\Dev\qt\tools\jom.exe -f Makefile C:\Dev\qt\tools\jom.exe -f Makefile.Debug cd 3rdparty\pcre\ && ( if not exist Makefile C:\Dev\qt\qt-5.6.2-mingw64-static-build\qtbase\bin\qmake C:\Dev\qt\qt-everywhere-enterprise-src-5.6.2\qtbase\src\3rdparty\pcre\pcre.pro -o Makefile ) && C:\Dev\qt\tools\jom.exe -f Makefile cd 3rdparty\freetype\ && ( if not exist Makefile C:\Dev\qt\qt-5.6.2-mingw64-static-build\qtbase\bin\qmake C:\Dev\qt\qt-everywhere-enterprise-src-5.6.2\qtbase\src\3rdparty\freetype\freetype.pro -o Makefile ) && C:\Dev\qt\tools\jom.exe -f Makefile C:\Dev\qt\tools\jom.exe -f Makefile.Debug all C:\Dev\qt\tools\jom.exe -f Makefile.Release all Project ERROR: libpng development package not found jom: C:\Dev\qt\qt-5.6.2-mingw64-static-build\qtbase\src\Makefile [sub-3rdparty-freetype-make_first] Error 3 jom: C:\Dev\qt\qt-5.6.2-mingw64-static-build\qtbase\Makefile [sub-src-make_first] Error 2 jom: C:\Dev\qt\qt-5.6.2-mingw64-static-build\Makefile [module-qtbase-make_first] Error 2 jom: Leaving directory 'C:\Dev\qt\qt-5.6.2-mingw64-static-build' Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved.