build Qt5.12.4 for Ubuntu 18.04 MYSQL driver
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Hi
Could someone kindly tell me the proper method to build Qt5.12 with the mysql driver?
I attempted:
#/opt/Qt/5.12.4/Src# ./configure -sql-mysql
producing the result:
ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.ERROR: Feature 'sql-mysql' was enabled, but the pre-condition 'libs.mysql' failed.
Check config.log for details.
my config.log file showed for mysql:
/opt/Qt/5.12.4/Src# cat config.log | grep mysql
Command line: -sql-mysql
loaded result for library config.qtbase_sqldrivers.libraries.mysql
Trying source 0 (type mysqlConfig) of library mysql ...
mysql_config not found.
Trying source 1 (type mysqlConfig) of library mysql ...
mysql_config not found.
Trying source 2 (type mysqlConfig) of library mysql ...
mysql_config not found.
Trying source 3 (type mysqlConfig) of library mysql ...
mysql_config not found.
Trying source 4 (type inline) of library mysql ...
None of [libmysqlclient_r.so libmysqlclient_r.a] found in [] and global paths.
Trying source 5 (type inline) of library mysql ...
Trying source 6 (type inline) of library mysql ...
None of [libmysqlclient.so libmysqlclient.a] found in [] and global paths.
test config.qtbase_sqldrivers.libraries.mysql FAILED
Apparently, the Qt configuration file is not able to find the libmysqlclient.so library files.
However these exist on my Ubuntu 18.04 system as:
/usr/lib/x86_64-linux-gnu$ ls | grep libmysqlclient
libmysqlclient.a
libmysqlclient_r.so
libmysqlclient.so
libmysqlclient.so.20
libmysqlclient.so.20.3.19
but apparently the Qt config file:
/opt/Qt/5.12.4/Src/configuration file is not able to find the above files.
Could someone kindly tell me how to proceed?
Thanks,
Phil -
Hi,
It's explained in the documentation.
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Hi SGaist,
I had been scouring this documentation, and it's the first place I went to but it's still not clear to me and here's what happened when I do:
root@bellatrix:/opt/Qt/5.12.4/Src/qtbase/src/plugins/sqldrivers# /opt/Qt/5.12.4/gcc_64/bin/qmake -- MYSQL_PREFIX=/usr/include/mysql
Project ERROR: You cannot configure sqldrivers separately within a top-level build.root@bellatrix:/opt/Qt/5.12.4/Src/qtbase/src/plugins/sqldrivers# /opt/Qt/5.12.4/gcc_64/bin/qmake -- MYSQL_INCDIR=/usr/include/mysql -- MYSQL_LIBDIR=/usr/lib/x86_64-linux-gnu
Project ERROR: You cannot configure sqldrivers separately within a top-level build.Thanks,
Phil -
Your Src dir is configured to build the whole Qt, so you cannot configure plugin folder separately.
(Here's a good habit called shadow-building: Don't run configure / qmake in the source folder but in an empty build folder. This will keep the source clean.)
If all you want is just the mysql plugin, you don't need to build Qt.
Get a clean source, and follow the instruction from the documentation again. -
@montanaviking said in build Qt5.12.4 for Ubuntu 18.04 MYSQL driver:
Project ERROR: You cannot configure sqldrivers separately within a top-level build.
Hi SGaist, Bonnie,
I did the following:
cd $QTDIR/qtbase/src/plugins/sqldriverstouch .qmake.stash
touch .qmake.super
qmake -- MYSQL_PREFIX=/usr/local
make sub-mysql
make
make install
It appears that adding empty .qmake.stash and .qmake.super to the $QTDIR/qtbase/src/plugins/sqldrivers directory
was necessary to enable the build of the mysql driver.
It appears I can now open the mysql database from my Qt5.12.4 program without error.
Thanks and best,
Phil -
Hi, I am running Qt5.12.4 with Ubuntu 18.04 64-bit and the following is how I compiled Qt statically:
Install Qt+source to directorysource this is the downloaded and installed source Qt5.12.4 code
mkdir directorystaticcompile this is the directory where configure, make, and make install are run
mkdir directorystaticinstall this is where the compiled Qt5.12.4 libraries and includes, etc.. are installed$ cd directorystaticcompile
$ sudo directorysource/configure -v -static -qt-zlib -qt-pcre -qt-libpng -qt-libjpeg -qt-freetype -qt-xcb -make libs -nomake tools -nomake examples -nomake tests -opensource -confirm-license -egl -opengl es2 -skip wayland -prefix directorystaticinstall -sql-mysql -feature-freetype -fontconfigThe above will build Qt and takes a few hours on most computers
After the build is complete:
$ sudo make
The above will take a few minutes
Then:
$ sudo make install
The above finishes the install
Best,
Phil
