Can't compile with QT4 anymore

Question

Hi,
Since last upgrade I can't compile my qt4 apps with KDevelop or QDevelop. It says something like :
make: *** No rules to build target « /opt/qt4/mkspecs/linux-g++/qmake.conf », required by « Makefile ». Stopping.
The qt-config tool does not exist anymore. There is a qtconfig one but, doesn't seem to be helping.
I know that the files in the the qt4 package have been moved from /opt/qt4 to /usr/, but still I don't know what to do.
I'm stuck !

Answer 1

The fact is I cannot compile ANYTHING in QT4 !
Let's take an example. I want to compile QPaddy (you can find it on qt-apps.org).
I set the vars (which doesn't seem to have any effect):
export QTDIR=/usr/share/qt4
export QMAKESPEC=/usr/share/qt4/mkspecs/linux-g++
export QT_LIBRARY_PATH=/usr/include/Qt
I try to compile QPAddy :
qmake qpaddy.pro
make
Here is what I get :
cd src/ && make -f Makefile
make[1]: entrant dans le répertoire « /root/docs/qpaddy0876/src »
make[1]: *** Pas de règle pour fabriquer la cible « /usr/lib/qt-3.3/mkspecs/default/qmake.conf », nécessaire pour « Makefile ». Arrêt.
make[1]: quittant le répertoire « /root/docs/qpaddy0876/src »
make: *** [sub-src-make_default] Erreur 2
And now the MakeFile :
# Makefile for building: qpaddy
# Generated by qmake (2.01a) (Qt 4.3.2) on: mar. nov. 6 17:49:17 2007
# Project:  qpaddy.pro
# Template: subdirs
# Command: /usr/bin/qmake -unix -o Makefile qpaddy.pro
first: make_default
MAKEFILE      = Makefile
QMAKE         = /usr/bin/qmake
DEL_FILE      = rm -f
CHK_DIR_EXISTS= test -d
MKDIR         = mkdir -p
COPY          = cp -f
COPY_FILE     = $(COPY)
COPY_DIR      = $(COPY) -r
INSTALL_FILE  = install -m 644 -p
INSTALL_PROGRAM = install -m 755 -p
INSTALL_DIR   = $(COPY_DIR)
DEL_FILE      = rm -f
SYMLINK       = ln -sf
DEL_DIR       = rmdir
MOVE          = mv -f
CHK_DIR_EXISTS= test -d
MKDIR         = mkdir -p
SUBTARGETS    =  \
        sub-src
src//$(MAKEFILE):
    @$(CHK_DIR_EXISTS) src/ || $(MKDIR) src/
    cd src/ && $(QMAKE) src.pro -unix -o $(MAKEFILE)
sub-src-qmake_all:  FORCE
    @$(CHK_DIR_EXISTS) src/ || $(MKDIR) src/
    cd src/ && $(QMAKE) src.pro -unix -o $(MAKEFILE)
sub-src: src//$(MAKEFILE) FORCE
    cd src/ && $(MAKE) -f $(MAKEFILE)
sub-src-make_default: src//$(MAKEFILE) FORCE
    cd src/ && $(MAKE) -f $(MAKEFILE)
sub-src-make_first: src//$(MAKEFILE) FORCE
    cd src/ && $(MAKE) -f $(MAKEFILE) first
sub-src-all: src//$(MAKEFILE) FORCE
    cd src/ && $(MAKE) -f $(MAKEFILE) all
sub-src-clean: src//$(MAKEFILE) FORCE
    cd src/ && $(MAKE) -f $(MAKEFILE) clean
sub-src-distclean: src//$(MAKEFILE) FORCE
    cd src/ && $(MAKE) -f $(MAKEFILE) distclean
sub-src-install_subtargets: src//$(MAKEFILE) FORCE
    cd src/ && $(MAKE) -f $(MAKEFILE) install
sub-src-uninstall_subtargets: src//$(MAKEFILE) FORCE
    cd src/ && $(MAKE) -f $(MAKEFILE) uninstall
Makefile: qpaddy.pro  /usr/share/qt4/mkspecs/linux-g++/qmake.conf /usr/share/qt4/mkspecs/common/g++.conf \
        /usr/share/qt4/mkspecs/common/unix.conf \
        /usr/share/qt4/mkspecs/common/linux.conf \
        /usr/share/qt4/mkspecs/qconfig.pri \
        /usr/share/qt4/mkspecs/features/qt_functions.prf \
        /usr/share/qt4/mkspecs/features/qt_config.prf \
        /usr/share/qt4/mkspecs/features/exclusive_builds.prf \
        /usr/share/qt4/mkspecs/features/default_pre.prf \
        /usr/share/qt4/mkspecs/features/release.prf \
        /usr/share/qt4/mkspecs/features/default_post.prf \
        /usr/share/qt4/mkspecs/features/qt.prf \
        /usr/share/qt4/mkspecs/features/unix/thread.prf \
        /usr/share/qt4/mkspecs/features/moc.prf \
        /usr/share/qt4/mkspecs/features/warn_on.prf \
        /usr/share/qt4/mkspecs/features/resources.prf \
        /usr/share/qt4/mkspecs/features/uic.prf \
        /usr/share/qt4/mkspecs/features/yacc.prf \
        /usr/share/qt4/mkspecs/features/lex.prf
    $(QMAKE) -unix -o Makefile qpaddy.pro
/usr/share/qt4/mkspecs/common/g++.conf:
/usr/share/qt4/mkspecs/common/unix.conf:
/usr/share/qt4/mkspecs/common/linux.conf:
/usr/share/qt4/mkspecs/qconfig.pri:
/usr/share/qt4/mkspecs/features/qt_functions.prf:
/usr/share/qt4/mkspecs/features/qt_config.prf:
/usr/share/qt4/mkspecs/features/exclusive_builds.prf:
/usr/share/qt4/mkspecs/features/default_pre.prf:
/usr/share/qt4/mkspecs/features/release.prf:
/usr/share/qt4/mkspecs/features/default_post.prf:
/usr/share/qt4/mkspecs/features/qt.prf:
/usr/share/qt4/mkspecs/features/unix/thread.prf:
/usr/share/qt4/mkspecs/features/moc.prf:
/usr/share/qt4/mkspecs/features/warn_on.prf:
/usr/share/qt4/mkspecs/features/resources.prf:
/usr/share/qt4/mkspecs/features/uic.prf:
/usr/share/qt4/mkspecs/features/yacc.prf:
/usr/share/qt4/mkspecs/features/lex.prf:
qmake: qmake_all FORCE
    @$(QMAKE) -unix -o Makefile qpaddy.pro
qmake_all: sub-src-qmake_all FORCE
make_default: sub-src-make_default FORCE
make_first: sub-src-make_first FORCE
all: sub-src-all FORCE
clean: sub-src-clean FORCE
distclean: sub-src-distclean FORCE
    -$(DEL_FILE) Makefile
install_subtargets: sub-src-install_subtargets FORCE
uninstall_subtargets: sub-src-uninstall_subtargets FORCE
mocclean: compiler_moc_header_clean compiler_moc_source_clean
mocables: compiler_moc_header_make_all compiler_moc_source_make_all
install: install_subtargets  FORCE
uninstall:  uninstall_subtargets FORCE
FORCE:
Any idea ?