[Interest] Using ccache with QtCreator under Windows

[Xavier Bigand]

Hello,


I am trying to use ccache, that I got here :
https://code.google.com/archive/p/ccache-win32/
This binary seems working fine, and I just put it in
the Qt\Tools\mingw530_32\bin folder near g++ and other binaries.

In .pro file of our project I simply add the line : QMAKE_CXX = ccache g++
The command line is correctly generated for the compilation, but it fails:


C:/sdks/Qt/Tools/mingw530_32/bin/mingw32-make -f Makefile.Debug

mingw32-make[1]: Entering directory
'C:/projects/HomeDesign3D/Projects/build-HomeDesign3D-Desktop_Qt_5_7_1_MinGW_32bit2-Debug'

ccache g++ -c -pipe -fno-keep-inline-dllexport -isystem
../../Dependencies/boost_1_52_0 -isystem ../../Dependencies/glew/include
-isystem ../../Dependencies/libpng -isystem
../../Dependencies/glsl-optimizer/src/glsl -isystem
../../Dependencies/curl-7.30.0/builds/libcurl-vc10-x86-release-dll-ipv6-sspi-spnego-winssl/include
-isystem ../../Dependencies/glsl-optimizer/src/glsl -isystem
../../Dependencies/zlib-1.2.7 -isystem ../../Dependencies -isystem
../../Dependencies/glew/include -isystem ../../Dependencies/iGLU -isystem
../../Dependencies/protobuf-2.6.1/src -isystem ../../Dependencies/boost
-isystem ../../Dependencies/freetype-2.5.0.1/include -isystem
../../Dependencies/freetype-gl -isystem ../../Dependencies/lzham/include
-isystem ../../Dependencies/quazip-0.7.1 -isystem
../../Dependencies/assimp/include -isystem ../../Dependencies/DropboxQt/src
-isystem ../../Dependencies/QtXlsxWriter/src/xlsx -isystem
../../Dependencies/zlib-1.2.7 -isystem ../../Dependencies/boost -I
../../Source -isystem ../../Source/GUI_QML/qtsingleapplication
-Werror=return-type -g -DDEBUG -D_DEBUG -std=gnu++11 -frtti -Wall -Wextra
-Wconversion -Wno-unused-variable -Wno-unused-parameter -Wno-reorder
-fexceptions -mthreads -DUNICODE -DH3D_QMAKE -DH3D_USE_WEBVIEW
-DBOOST_GEOMETRY_OVERLAY_NO_THROW -DH3D_DEVELOPER_MODE
-DH3D_WORLDWIDE_VERSION -DH3D_GOLD_VERSION -DH3D_NO_STORE -DH3D_QT
-DUSE_ASSIMP -DXLSX_NO_LIB -D_USE_MATH_DEFINES -DGLEW_STATIC
-DENABLED_ASSERT -DENGINE3D_STATIC_LIBRARY -DARCHITECTURE_STATIC_LIBRARY
-DPLATFORM_STATIC_LIBRARY -DCORE_STATIC_LIBRARY -DQUAZIP_STATIC
-DQT_QML_DEBUG -DQT_QUICK_LIB -DQT_SVG_LIB -DQT_OPENGL_LIB
-DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_MULTIMEDIA_LIB -DQT_GUI_LIB
-DQT_QML_LIB -DQT_NETWORK_LIB -DQT_XML_LIB -DQT_CORE_LIB -DQT_NEEDS_QMAIN
-I..\Qt -I. -I..\..\Source -I..\..\Source\GUI_QML\qtquick2applicationviewer
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtQuick
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtSvg
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtOpenGL
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtPrintSupport
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtWidgets
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtMultimedia
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtGui
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtANGLE
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtQml
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtNetwork
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtCore\5.7.1
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtCore\5.7.1\QtCore
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtXml
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\include\QtCore -Idebug
-I..\..\..\..\sdks\Qt\5.7\mingw53_32\mkspecs\win32-g++ -o
debug\Application.o ..\..\Source\Core\Application.cpp

Makefile.Debug:5501: recipe for target 'debug/Application.o' failed

mingw32-make[1]: Leaving directory
'C:/projects/HomeDesign3D/Projects/build-HomeDesign3D-Desktop_Qt_5_7_1_MinGW_32bit2-Debug'

mingw32-make[1]: *** [debug/Application.o] Error 1

Makefile:34: recipe for target 'debug' failed

mingw32-make: *** [debug] Error 2

19:26:57: The process "C:\sdks\Qt\Tools\mingw530_32\bin\mingw32-make.exe"
exited with code 2.

Error while building/deploying project HomeDesign3D (kit: Desktop Qt 5.7.1
MinGW 32bit)

When executing step "Make"


Is there a way to get the complete output of the ccache execution? Because
here I just can't understand what goes wrong.

Does someone do a similar thing or have an idea of what make the command
line failed?

-- 
Xavier
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