<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Dear List,<div><br></div><div>I was able to compile QGIS from source without issue on Windows by following the instructions. The only issue is rebuilding time. Even for a very small change, it takes over 2-3 minutes, making iterations very slow.</div><div><br></div><div>I found <a href="https://nathanw.net/2016/05/26/speeding-up-qgis-build-times-with-ninja/" target="_blank">Nathan's article</a> on how to compile with Ninja. With a few adaptations (using cmake instead of ccmake), the compilation starts. But after a while (1830/4896), it errors, with the following error (see below).</div><div><br></div><div>It looks like it can't link to python37_d.lib. I checked, but couldn't find the file in OSGeo4W64\apps\Python37\libs nor on my system's python, so I installed the python debug binaries (using the normal python installers for windows), and tried to copy the file over to the OSGeo4W python install, but it didn't work. I still get the same error, and some other messages that may be linked).</div><div><br></div><div>Any idea on how to fix this ? I've googled the issue, but couldn't find any useful information...</div><div><br></div><div>Thanks !!</div><div><div><br></div><div>Olivier</div><div><br></div><div><div>[1829/4896] Linking CXX shared module output\python\qgis\_core.pyd</div><div>FAILED: output/python/qgis/_core.pyd</div><div>cmd.exe /C "cd . && "C:\Program Files\CMake\bin\cmake.exe" -E vs_link_dll --intdir=python\CMakeFiles\python_module_qgis__core.dir --manifests  -- C:\PROGRA~2\MICROS~1.0\VC\bin\amd64\link.exe /nologo python\CMakeFiles\python_module_qgis__core.dir\core\sip_corepart0.cpp.obj python\CMakeFiles\python_module_qgis__core.dir\core\sip_corepart1.cpp.obj python\CMakeFiles\python_module_qgis__core.dir\core\sip_corepart2.cpp.obj python\CMakeFiles\python_module_qgis__core.dir\core\sip_corepart3.cpp.obj  /out:output\python\qgis\_core.pyd /implib:python\_core.lib /pdb:output\python\qgis\_core.pdb /dll /version:0.0 /machine:x64 /debug /INCREMENTAL -LIBPATH:C:\Users\Olivier\Documents\QGIS\build\src\core  -LIBPATH:C:\Users\Olivier\Documents\QGIS\build\src\gui C:\OSGeo4W64\apps\Python37\libs\python37.lib src\core\qgis_core.lib C:\OSGeo4W64\lib\opencl.lib wsock32.lib "C:\Program Files (x86)\Windows Kits\10\Lib\10.0.14393.0\um\x64\SetupAPI.Lib" dbghelp.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Xmld.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Svgd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5WebKitWidgets.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5PrintSupportd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Widgetsd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5WebKit.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Guid.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Networkd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Sqld.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Concurrentd.lib C:\OSGeo4W64\apps\Qt5\lib\qca-qt5.lib C:\OSGeo4W64\apps\Qt5\lib\qt5keychain.lib C:\OSGeo4W64\lib\proj_i.lib C:\OSGeo4W64\lib\geos_c.lib C:\OSGeo4W64\lib\gdal_i.lib C:\OSGeo4W64\lib\spatialindex-64.lib C:\OSGeo4W64\lib\expat.lib C:\OSGeo4W64\lib\sqlite3_i.lib C:\OSGeo4W64\lib\spatialite_i.lib C:\OSGeo4W64\lib\zip.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5SerialPortd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Positioningd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Cored.lib kernel32.lib user32.lib gdi32.lib winspool.lib shell32.lib ole32.lib oleaut32.lib uuid.lib comdlg32.lib advapi32.lib  && cmd.exe /C "cd /D C:\Users\Olivier\Documents\QGIS\build\python && "C:\Program Files\CMake\bin\cmake.exe" -E echo "Copying extension _core" && "C:\Program Files\CMake\bin\cmake.exe" -E copy_if_different C:/Users/Olivier/Documents/QGIS/build/output/python/qgis/_core.pyd C:/Users/Olivier/Documents/QGIS/build/output/python/qgis/_core.pyd""</div><div>LINK Pass 1: command "C:\PROGRA~2\MICROS~1.0\VC\bin\amd64\link.exe /nologo python\CMakeFiles\python_module_qgis__core.dir\core\sip_corepart0.cpp.obj python\CMakeFiles\python_module_qgis__core.dir\core\sip_corepart1.cpp.obj python\CMakeFiles\python_module_qgis__core.dir\core\sip_corepart2.cpp.obj python\CMakeFiles\python_module_qgis__core.dir\core\sip_corepart3.cpp.obj /out:output\python\qgis\_core.pyd /implib:python\_core.lib /pdb:output\python\qgis\_core.pdb /dll /version:0.0 /machine:x64 /debug /INCREMENTAL -LIBPATH:C:\Users\Olivier\Documents\QGIS\build\src\core -LIBPATH:C:\Users\Olivier\Documents\QGIS\build\src\gui C:\OSGeo4W64\apps\Python37\libs\python37.lib src\core\qgis_core.lib C:\OSGeo4W64\lib\opencl.lib wsock32.lib C:\Program Files (x86)\Windows Kits\10\Lib\10.0.14393.0\um\x64\SetupAPI.Lib dbghelp.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Xmld.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Svgd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5WebKitWidgets.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5PrintSupportd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Widgetsd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5WebKit.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Guid.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Networkd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Sqld.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Concurrentd.lib C:\OSGeo4W64\apps\Qt5\lib\qca-qt5.lib C:\OSGeo4W64\apps\Qt5\lib\qt5keychain.lib C:\OSGeo4W64\lib\proj_i.lib C:\OSGeo4W64\lib\geos_c.lib C:\OSGeo4W64\lib\gdal_i.lib C:\OSGeo4W64\lib\spatialindex-64.lib C:\OSGeo4W64\lib\expat.lib C:\OSGeo4W64\lib\sqlite3_i.lib C:\OSGeo4W64\lib\spatialite_i.lib C:\OSGeo4W64\lib\zip.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5SerialPortd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Positioningd.lib C:\OSGeo4W64\apps\Qt5\lib\Qt5Cored.lib kernel32.lib user32.lib gdi32.lib winspool.lib shell32.lib ole32.lib oleaut32.lib uuid.lib comdlg32.lib advapi32.lib /MANIFEST /MANIFESTFILE:python\CMakeFiles\python_module_qgis__core.dir/intermediate.manifest python\CMakeFiles\python_module_qgis__core.dir/manifest.res" failed (exit code 1104) with the following output:</div><div>LINK : fatal error LNK1104: cannot open file 'python37_d.lib'</div><div>[1831/4896] Building CXX object src\gui\CMakeFiles\qgis_gui.dir\qgspresetcolorrampdialog.cpp.obj</div><div>ninja: build stopped: subcommand failed.</div></div><br class="gmail-m_3367253618789321501gmail-Apple-interchange-newline"></div></div></div></div></div></div>