Bug found in subroutine 'build', then was added compatiblies for packages 'mysql' & 'postgresql'.
1) In this section 'qmake' is updating Makefile in '{qt-src}/plugins/src/sqldrivers/mysql' & in '{qt-src}/plugins/src/sqldrivers/psql', but qmake does not install in system (provided by Qt)..
I am 1st call `make -C qmake` from Qt source tree and call `${startdir}/src/$pkgfqn/bin/qmake`..
2) In new versions of Qt variable 'INCLUDEPATH' (in Makefile's) was replaced to 'INCPATH'. (See {src_tree}/plugins/src/sqldrivers/mysql/makefile, after configuring..)


Pathch for fix this:

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diff -Naur qt.orig/PKGBUILD qt/PKGBUILD
--- qt.orig/PKGBUILD 2007-03-12 17:50:18.000000000 +0200
+++ qt/PKGBUILD 2007-03-23 23:46:03.000000000 +0200
@@ -57,10 +57,15 @@
[ "$CARCH" = "x86_64" ] && sed -i "s|/opt/qt/lib64|/opt/qt/lib|g" $startdir/src/$pkgfqn/tools/assistant/lib/Makefile
[ "$CARCH" = "x86_64" ] && sed -i "s|/opt/qt/lib64|/opt/qt/lib|g" $startdir/src/$pkgfqn/tools/designer/uilib/Makefile

+ cd $startdir/src/$pkgfqn
+ make -C qmake || return 1
+
cd $startdir/src/$pkgfqn/plugins/src/sqldrivers/mysql
- qmake -o Makefile "INCLUDEPATH+=/usr/include/mysql" "LIBS+=-L/usr/lib/mysql -lmysqlclient" mysql.pro
+ $startdir/src/$pkgfqn/bin/qmake -spec $startdir/src/$pkgfqn/mkspecs/default \
+ -o Makefile "INCPATH+=/usr/include/mysql" "LIBS+=-L/usr/lib/mysql -lmysqlclient" mysql.pro
cd $startdir/src/$pkgfqn/plugins/src/sqldrivers/psql
- qmake -o Makefile "INCLUDEPATH+=/usr/src/include /usr/include/postgresql/server" "LIBS+=-L/usr/lib -lpq" psql.pro
+ $startdir/src/$pkgfqn/bin/qmake -spec $startdir/src/$pkgfqn/mkspecs/default \
+ -o Makefile "INCPATH+=/usr/src/include /usr/include/postgresql/server" "LIBS+=-L/usr/lib -lpq" psql.pro

cd $startdir/src/$pkgfqn
# fix the broken makefiles
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