[Development] `/opt/qt5/bin/qdoc: not found` with `-prefix /opt/qt5` config

[Yuchen Deng]

hi, list!
This issue been for a long while.
my Qt5.3 config options:

../Qt5/configure *-prefix /opt/qt5* -force-debug-info -separate-debug-info
> -platform linux-g++ -opensource -confirm-license -qt-zlib -qt-libpng
> -qt-libjpeg -qt-xcb -qt-xkbcommon -no-compile-examples -skip
> qtandroidextras -skip qtwebkit >config.log 2>&1


The `make` step just fine. I can finish the build process.
The issue only happen when execute `make docs`.

here is the full log for `make docs` on Ubuntu 14.04.

>
> make -f Makefile html_docs && make -f Makefile qch_docs
> make[1]: Entering directory `/home/loaden/qpSOFT/Projects/BuildQt5'
> make -f Makefile prepare_docs && make -f Makefile generate_docs
> make[2]: Entering directory `/home/loaden/qpSOFT/Projects/BuildQt5'
> cd qtbase/ && ( test -e Makefile || /home/loaden/qpSOFT/Projects/BuildQt5/qtbase/bin/qmake /home/loaden/qpSOFT/Projects/Qt5/qtbase/qtbase.pro -o Makefile ) && make -f Makefile prepare_docs
> make[3]: Entering directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase'
> cd src/ && ( test -e Makefile || /home/loaden/qpSOFT/Projects/BuildQt5/qtbase/bin/qmake /home/loaden/qpSOFT/Projects/Qt5/qtbase/src/src.pro -o Makefile ) && make -f Makefile prepare_docs
> make[4]: Entering directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src'
> cd tools/bootstrap/ && ( test -e Makefile || /home/loaden/qpSOFT/Projects/BuildQt5/qtbase/bin/qmake /home/loaden/qpSOFT/Projects/Qt5/qtbase/src/tools/bootstrap/bootstrap.pro -o Makefile ) && make -f Makefile prepare_docs
> make[5]: Entering directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src/tools/bootstrap'
> make[5]: Nothing to be done for `prepare_docs'.
> make[5]: Leaving directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src/tools/bootstrap'
> cd tools/moc/ && ( test -e Makefile || /home/loaden/qpSOFT/Projects/BuildQt5/qtbase/bin/qmake /home/loaden/qpSOFT/Projects/Qt5/qtbase/src/tools/moc/moc.pro -o Makefile ) && make -f Makefile prepare_docs
> make[5]: Entering directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src/tools/moc'
> make[5]: Nothing to be done for `prepare_docs'.
> make[5]: Leaving directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src/tools/moc'
> cd tools/rcc/ && ( test -e Makefile || /home/loaden/qpSOFT/Projects/BuildQt5/qtbase/bin/qmake /home/loaden/qpSOFT/Projects/Qt5/qtbase/src/tools/rcc/rcc.pro -o Makefile ) && make -f Makefile prepare_docs
> make[5]: Entering directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src/tools/rcc'
> make[5]: Nothing to be done for `prepare_docs'.
> make[5]: Leaving directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src/tools/rcc'
> cd corelib/ && ( test -e Makefile || /home/loaden/qpSOFT/Projects/BuildQt5/qtbase/bin/qmake /home/loaden/qpSOFT/Projects/Qt5/qtbase/src/corelib/corelib.pro -o Makefile ) && make -f Makefile prepare_docs
> make[5]: Entering directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src/corelib'
> QT_INSTALL_DOCS=/home/loaden/qpSOFT/Projects/Qt5/qtbase/doc QT_VERSION_TAG=530 QT_VER=5.3 QT_VERSION=5.3.0 /opt/qt5/bin/qdoc -outputdir /home/loaden/qpSOFT/Projects/BuildQt5/qtbase/doc/qtcore -installdir /opt/qt5/doc /home/loaden/qpSOFT/Projects/Qt5/qtbase/src/corelib/doc/qtcore.qdocconf -prepare -no-link-errors
> /bin/sh: 1: /opt/qt5/bin/qdoc: not found
> make[5]: *** [prepare_docs] Error 127
> make[5]: Leaving directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src/corelib'
> make[4]: *** [sub-corelib-prepare_docs] Error 2
> make[4]: Leaving directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase/src'
> make[3]: *** [sub-src-prepare_docs] Error 2
> make[3]: Leaving directory `/home/loaden/qpSOFT/Projects/BuildQt5/qtbase'
> make[2]: *** [module-qtbase-prepare_docs] Error 2
> make[2]: Leaving directory `/home/loaden/qpSOFT/Projects/BuildQt5'
> make[1]: *** [html_docs] Error 2
> make[1]: Leaving directory `/home/loaden/qpSOFT/Projects/BuildQt5'
> make: *** [docs] Error 2
>
> --
Best Regards
Yuchen
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