繼續qt

突然想到一個問題，是不是搞QT的人都清楚qt的名字，以及之間的關係。把名字變來變去，似乎是一件“好玩”的事。對開發者來說，是一件“痛苦”的事。

對於QT編譯，我想，創立"qt編譯學"是很有必要的，哈哈。

 

qt編譯是否成功，依賴系統環境（包括環境變量，需要的庫），還有開發者操作。

從心理學偵探學犯罪學的角度來看，編譯qt（對於其他編譯好像也可以），應該把自己當作偵探，不要期望兇手會自首，應該從每個error上發現線索，抓到兇手。

 

爲了方便設置，寫了一個設置環境變量的shell腳本qtenv，去掉原本已經被我設得不堪入目的變量，重新再來一遍。乾淨的，順序上qt優先，然後交叉編器，最後是系統（不清楚是否有關係）。#!/bin/sh #by oChapman #2009-5-29 #qt environment setting. echo "setting env" export QTDIR=/work/qt-2.3.7 export QPEDIR=/work/qtopia-1.7.0 export LD_LIBRARY_PATH=/usr/local/arm-linux/qt_toolchain/qt-2.3.2/lib:/usr/local/arm-linux/lib:/usr/local/bin:/usr/local/lib:/lib export TMAKEDIR=/work/tmake-1.11 export TMAKEPATH=/work/tmake-1.11/lib/qws/linux-arm-g++ export PATH=/work/tmake-1.11/bin:/usr/local/arm-linux/bin:/usr/local/arm-linux/arm-linux/lib:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games export CC=arm-linux-gcc echo "ok"

運行之（注意， 是".  ~/qtenv" ），

之後，按照編譯步驟，再一次出現成功。

 

系統：ubuntu 8.04

QT:

qt-2.3.7

qtopia-1.7.0

tmake-1.11

上面qt-2.3.2是在交叉編譯器arm-linux裏的。

回顧一下曾經的error.在我的系統上。下面的錯誤的根本原因是環境變量。

 

/work/qt-2.3.7/lib/libqte.so: undefined reference to `QMultiLineEdit::undoAvailable(bool)'
/work/qt-2.3.7/lib/libqte.so: undefined reference to `QWSClient::connectionClosed()'
/work/qt-2.3.7/lib/libqte.so: undefined reference to `QActionGroup::selected(QAction*)'
/work/qtopia-1.7.0/lib/libqpe.so: undefined reference to `QComboBox::className() const'
/work/qt-2.3.7/lib/libqte.so: undefined reference to `QIconView::mouseButtonPressed(int, QIconViewItem*, QPoint const&)'
collect2: ld returned 1 exit status
make[1]: *** [/work/qtopia-1.7.0/bin/sysinfo] Error 1
make[1]: Leaving directory `/work/qtopia-1.7.0/src/applications/sysinfo'
make: *** [applications/sysinfo] Error 2

 

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ochapman@ochapman-desktop:/work/qt-2.3.7$ make sub-src
cd src/moc; make
make[1]: Entering directory `/work/qt-2.3.7/src/moc'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/work/qt-2.3.7/src/moc'
rm -f bin/moc
cp src/moc/moc bin/moc
make -f src-mt.mk
make[1]: Entering directory `/work/qt-2.3.7'
(not building threaded Qt)
make[1]: Leaving directory `/work/qt-2.3.7'
cd src; make
make[1]: Entering directory `/work/qt-2.3.7/src'
/work/qt-2.3.7/bin/moc kernel/qthread_unix.cpp -o kernel/qthread_unix.moc
/work/qt-2.3.7/bin/moc: 1: Syntax error: word unexpected (expecting ")")
make[1]: *** [kernel/qthread_unix.moc] Error 2
make[1]: Leaving directory `/work/qt-2.3.7/src'
make: *** [sub-src] Error 2

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chapman@ochapman-desktop:/work/qtopia-1.7.0/src$ make
make -C libraries/qtopia
make[1]: Entering directory `/work/qtopia-1.7.0/src/libraries/qtopia'
/work/qt-2.3.7/bin/uic passwordbase_p.ui -o ./passwordbase_p.h
/work/qt-2.3.7/bin/uic: error while loading shared libraries: libqutil.so.1: cannot open shared object file: No such file or directory
make[1]: *** [passwordbase_p.h] Error 127
make[1]: Leaving directory `/work/qtopia-1.7.0/src/libraries/qtopia'
make: *** [libraries/qtopia] Error 2

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