openSUSE Programming May 2004

programming@lists.opensuse.org

18 participants
16 discussions

Problems for using videodev2 header
by Antonio Beamud Montero 31 May '04

31 May '04

Hi all: This is my first e-mail to this list. I have a problem with Suse 9.0 to compile nvrec. Nvrec uses a v4l2_buffer, but in the headers inside /usr/include/linux/videodev2.h this definition is inside an if __KERNEL__, and the compilation give me errors like: v4l2_core.c:70: error: field `cbuf' has incomplete type In Debian compiles ok, because the declaration of v4l2_buffer is not conditionally defined by __KERNEL__. How I can use this declaration...? Thanks. -- Antonio Beamud Montero <antonio.beamud(a)linkend.com> JID: farruquit0(a)jabber.org

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Why I find autotools confusing.
by Steven T. Hatton 28 May '04

28 May '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 A while back I told people that I find using autotools to be confusing. I've been looking at the documentation of the latest versions and have concluded that the reason I don't understand the documentation is because the documents are inconsistent, at least when used as references. Compare the following two excerpts: This is from autoconf.info: To encourage consistency, here is a suggested order for calling the Autoconf macros. Generally speaking, the things near the end of this list are those that could depend on things earlier in it. For example, library functions could be affected by types and libraries. Autoconf requirements `AC_INIT(PACKAGE, VERSION, BUG-REPORT-ADDRESS)' information on the package checks for programs checks for libraries checks for header files checks for types checks for structures checks for compiler characteristics checks for library functions checks for system services `AC_CONFIG_FILES([FILE...])' `AC_OUTPUT' This is from automake.info: The first step is to update your `configure.ac' to include the commands that `automake' needs. The way to do this is to add an `AM_INIT_AUTOMAKE' call just after `AC_INIT': AC_INIT(zardoz, 1.0) AM_INIT_AUTOMAKE This is from a working autoconf.ac # -*- Autoconf -*- # Process this file with autoconf to produce a configure script. AC_PREREQ(2.59) AC_INIT(src/main.cpp) AM_INIT_AUTOMAKE(rematrix, 1.0, hattons(a)globalsymmetry.com) AC_CONFIG_SRCDIR([src]) AC_CONFIG_HEADER([config.h]) # Checks for programs. AC_PROG_CXX AC_PROG_CC # Checks for libraries. # Checks for header files. # Checks for typedefs, structures, and compiler characteristics. AC_HEADER_STDBOOL AC_C_CONST AC_C_INLINE AC_TYPE_SIZE_T # Checks for library functions. AC_OUTPUT([Makefile src/Makefile]) The examples found in http://sources.redhat.com/autobook/ did not work (were out of date?) when I tried to use the book to get started. I'm now to the point where I can produce a basic gnu gnits build setup for simple programs, but it's been trial and error (as well as some very helpful guidance from people on this list). Other than simply venting my frustrations, my purpose in posting this is to ask others how they would approach learning how to use these tools. Perhaps the answer is still the Goat Book. It seems a shame to see the book has not been maintained. - -- Regards, Steven -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQFAtzqqwX61+IL0QsMRAhxYAJ4uX7zoByNhGcDZqD555H4JbedUhgCfVU5V ZzED9r4iHrUSkM/4mJA2pFA= =1pvP -----END PGP SIGNATURE-----

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An error occurred while accessing the database
by Prabu Subroto 26 May '04

26 May '04

Dear my friends... I move forward to getting to know more about qt in database application development. I tried to make a very simple database application qith QTable. I have made the database connection successfully. I found no error. If I click on "connect" it can connect successfully because the connection name move to the left hand column. The documentation in help menu said it is so. Compiled successfully. but if I run the compiled code, i found this error message as a prompt window comes: " An error occurred while accessing the database ". And the error message on the linux console where I executed "./book" are under below: " patrixlinux@patrix:~/arsip/proyek/qt/book> ./book QSqlCursor::setName: unable to build record, does 'author' exist? QSqlRecord::field: index out of range: 0 QSqlRecord::position: unable to find field forename QSqlRecord::field: index out of range: -1 QSqlRecord::field: index out of range: 1 QSqlRecord::position: unable to find field surname QSqlRecord::field: index out of range: -1 QSqlCursor::setName: unable to build record, does 'author' exist? patrixlinux@patrix:~/arsip/proyek/qt/book> " the author table really exists. should do choosing the database name as I do usually on PHP+MySQL ( mysql_select_db("192.168.23.21","patrix", "perjaka"); )? I have tested to connect to my mysql server with the same hostname, username and password and it's OK. I also can do select query. I did testing with mysql-client (mysql -h 192.168.23.21 -u patrix -p) Please tell me where my mistake. Thank you very much in advance. ps: Here is what I've done underbelow: patrixlinux@patrix:~/arsip/proyek/qt/book> ls book.db book.pro depanform.ui depanform.ui~ main.cpp patrixlinux@patrix:~/arsip/proyek/qt/book> qmake -o Makefile book.pro patrixlinux@patrix:~/arsip/proyek/qt/book> make /usr/lib/qt3/bin/uic depanform.ui -o .ui/depanform.h g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -DQT_NO_DEBUG -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I. -I.moc/ -o .obj/main.o main.cpp /usr/lib/qt3/bin/uic depanform.ui -i depanform.h -o .ui/depanform.cpp g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -DQT_NO_DEBUG -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I. -I.moc/ -o .obj/depanform.o .ui/depanform.cpp /usr/lib/qt3/bin/moc .ui/depanform.h -o .moc/moc_depanform.cpp g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -DQT_NO_DEBUG -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I. -I.moc/ -o .obj/moc_depanform.o .moc/moc_depanform.cpp g++ -o book .obj/main.o .obj/depanform.o .obj/moc_depanform.o -L/usr/lib/ -L/usr/lib/qt3/lib/ -L/usr/X11R6/lib/ -lqt -lXext -lX11 -lm patrixlinux@patrix:~/arsip/proyek/qt/book> ls Makefile book book.db book.pro depanform.ui depanform.ui~ main.cpp patrixlinux@patrix:~/arsip/proyek/qt/book> ./book QSqlCursor::setName: unable to build record, does 'author' exist? QSqlRecord::field: index out of range: 0 QSqlRecord::position: unable to find field forename QSqlRecord::field: index out of range: -1 QSqlRecord::field: index out of range: 1 QSqlRecord::position: unable to find field surname QSqlRecord::field: index out of range: -1 patrixlinux@patrix:~/arsip/proyek/qt/book> cat main.cpp #include <qapplication.h> #include "depanform.h" int main( int argc, char ** argv ) { QApplication a( argc, argv ); depanForm w; w.show(); a.connect( &a, SIGNAL( lastWindowClosed() ), &a, SLOT( quit() ) ); return a.exec(); } patrixlinux@patrix:~/arsip/proyek/qt/book> cat book.pro unix { UI_DIR = .ui MOC_DIR = .moc OBJECTS_DIR = .obj } TEMPLATE = app LANGUAGE = C++ CONFIG += qt warn_on release SOURCES += main.cpp FORMS = depanform.ui DBFILE = book.db patrixlinux@patrix:~/arsip/proyek/qt/book> cat depanform.ui <!DOCTYPE UI><UI version="3.3" stdsetdef="1"> <class>depanForm</class> <widget class="QDialog"> <property name="name"> <cstring>depanForm</cstring> </property> <property name="geometry"> <rect> <x>0</x> <y>0</y> <width>600</width> <height>480</height> </rect> </property> <property name="caption"> <string>Halaman depan</string> </property> <widget class="QDataTable"> <column> <property name="text"> <string>Forename</string> </property> <property name="field"> <string>forename</string> </property> </column> <column> <property name="text"> <string>Surname</string> </property> <property name="field"> <string>surname</string> </property> </column> <property name="name"> <cstring>dataTable1</cstring> </property> <property name="geometry"> <rect> <x>90</x> <y>20</y> <width>390</width> <height>220</height> </rect> </property> <property name="sorting"> <bool>true</bool> </property> <property name="confirmDelete"> <bool>true</bool> </property> <property name="database" stdset="0"> <stringlist> <string>(default)</string> <string>author</string> </stringlist> </property> </widget> </widget> <pixmapinproject/> <layoutdefaults spacing="6" margin="11"/> </UI> patrixlinux@patrix:~/arsip/proyek/qt/book> cat book.db <!DOCTYPE DB><DB version="1.0"> <connection> <property name="name"> <string>(default)</string> </property> <property name="driver"> <string>QMYSQL3</string> </property> <property name="database"> <string>book</string> </property> <property name="username"> <string>root</string> </property> <property name="hostname"> <string>192.168.23.21</string> </property> <property name="port"> <string>-1</string> </property> <table> <property name="name"> <string>author</string> </property> <field> <property name="name"> <string>id</string> </property> </field> <field> <property name="name"> <string>forename</string> </property> </field> <field> <property name="name"> <string>surname</string> </property> </field> </table> <table> <property name="name"> <string>book</string> </property> <field> <property name="name"> <string>id</string> </property> </field> <field> <property name="name"> <string>title</string> </property> </field> <field> <property name="name"> <string>price</string> </property> </field> <field> <property name="name"> <string>authorid</string> </property> </field> <field> <property name="name"> <string>notes</string> </property> </field> </table> <table> <property name="name"> <string>sequence</string> </property> <field> <property name="name"> <string>tablename</string> </property> </field> <field> <property name="name"> <string>sequence</string> </property> </field> </table> </connection> </DB> patrixlinux@patrix:~/arsip/proyek/qt/book> __________________________________ Do you Yahoo!? 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Error : Error occurred while accessing the database
by Prabu Subroto 25 May '04

25 May '04

Dear my friends... I want to develop a database application with qt and MySQL. I begin from a very simple application, only selecting (query : select * from book) a table. Compiling succeeded. But if I executed the compiled program, I found this error message: " Error occurred while accessing the database ". I have made the connection successfully with "Project << Database connection". And no problem while I am trying to "Connect". Please tell me where my mistake. Thank you very much in advance. For detail information, here is what I've done as below: prabu@susefujitsu:/usr/lib/qt3/bin> ./qmake -o /home/prabu/arsip/coba-2x/qt/2/Makefile /home/prabu/arsip/coba-2x/qt/2/hello.pro prabu@susefujitsu:~/arsip/coba-2x/qt/2> make /usr/lib/qt3/bin/uic depan.ui -o .ui/depan.h g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -fPIC -DNO_DEBUG -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -fPIC -DNO_DEBUG -DQT_NO_DEBUG -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I.moc/ -o .obj/main.o main.cpp /usr/lib/qt3/bin/uic depan.ui -i depan.h -o .ui/depan.cpp g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -fPIC -DNO_DEBUG -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -fPIC -DNO_DEBUG -DQT_NO_DEBUG -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I.moc/ -o .obj/depan.o .ui/depan.cpp /usr/lib/qt3/bin/moc .ui/depan.h -o .moc/moc_depan.cpp g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -fPIC -DNO_DEBUG -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -fPIC -DNO_DEBUG -DQT_NO_DEBUG -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I.moc/ -o .obj/moc_depan.o .moc/moc_depan.cpp g++ -o hello .obj/main.o .obj/depan.o .obj/moc_depan.o -L/usr/lib/ -L/usr/lib/qt3/lib/ -L/usr/X11R6/lib/ -lqt -lXext -lX11 -lm prabu@susefujitsu:~/arsip/coba-2x/qt/2> ./hello QSqlCursor::setName: unable to build record, does 'author' exist? QSqlRecord::field: index out of range: 0 QSqlRecord::position: unable to find field forename QSqlRecord::field: index out of range: -1 QSqlRecord::field: index out of range: 1 QSqlRecord::position: unable to find field surname QSqlRecord::field: index out of range: -1 prabu@susefujitsu:~/arsip/coba-2x/qt/2> __________________________________ Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger. http://messenger.yahoo.com/

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problem in qt for beginner
by Prabu Subroto 25 May '04

25 May '04

Dear my friends... I tried to develop an application with qt. As the beginning I try to make a very simple application with qt. just display a form contain a label "Hello Qt". But I have problem in compiling as below: patrixlinux@patrix:~/arsip/proyek/metric> ls conversionform.ui main.cpp metric.pro patrixlinux@patrix:~/arsip/proyek/metric> qmake -o Makefile metric.pro patrixlinux@patrix:~/arsip/proyek/metric> ls Makefile conversionform.ui main.cpp metric.pro patrixlinux@patrix:~/arsip/proyek/metric> make g++ -c -pipe -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -Wall -W -O2 -march=i586 -mcpu=i686 -fmessage-length=0 -Wall -fPIC -DQT_NO_DEBUG -DQT_SHARED -DQT_TABLET_SUPPORT -I/usr/lib/qt3/mkspecs/default -I. -I/usr/include -I/usr/lib/qt3/include -I.ui/ -I. -I.moc/ -o .obj/main.o main.cpp main.cpp:2:22: unnamed1.h: No such file or directory main.cpp: In function `int main(int, char**)': main.cpp:7: error: `conversionForm' undeclared (first use this function) main.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.) main.cpp:7: error: syntax error before `;' token main.cpp:8: error: `w' undeclared (first use this function) make: *** [.obj/main.o] Error 1 patrixlinux@patrix:~/arsip/proyek/metric> My program only contents 1 form (conversionForm) with 1 textLabel. too poor that I have not understood where I should define the init (of constructor) and destroy (of destructor). In project view, I found "conversionform.ui.h" and thist texts as below : " /**************************************************************************** ** ui.h extension file, included from the uic-generated form implementation. ** ** If you wish to add, delete or rename functions or slots use ** Qt Designer which will update this file, preserving your code. Create an ** init() function in place of a constructor, and a destroy() function in ** place of a destructor. *****************************************************************************/ " I tried to see the help of qt but I didn't find a brief explanation about where I can make init() from qt designer. Please help me, teach me please..... I am an idiot computer freak but I strong willing to learn. Thank you very much for your generousity. __________________________________ Do you Yahoo!? SBC Yahoo! - Internet access at a great low price. http://promo.yahoo.com/sbc/

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SuSE 9.1 with PHP4 and Apache2.
by Prabu Subroto 24 May '04

24 May '04

Dear my friends... I have a new machine for development server. This machine has SuSE 9.1 and Apache 2. I want to install PHP4 for Apache 2 on this machine (apache2-mod_php4). I have installed the package "apache2-mod_php4) with YaST2. I restarted the apache2 but I didn't see php module being loaded. Here is what on my machine: " patrix:/localhome/patrixlinux # rcapache2 restart Syntax OK Shutting down httpd2 (waiting for all children to terminate) done Starting httpd2 (prefork) done patrix:/localhome/patrixlinux # " Please tell me what should I do to install php module on my Apache 2 server. Thank you very much. __________________________________ Do you Yahoo!? Yahoo! Domains � Claim yours for only $14.70/year http://smallbusiness.promotions.yahoo.com/offer

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Help with using Ncurses and C++
by Charley 24 May '04

24 May '04

Hello, I have just spend the last few hours researching on both the list archives and using google without much success. I am looking at moving a project from a real-time (sort of) version of Windows NT to run under SuSE Linux 9.1. >From the OS perspective everything looks good, however one small subject is messing me up. Most of the code is written in C, compiled under C++ and it is our intention to rewrite to OO type C++. And while this also is pretty straight forward we are stumbling on a small problem. Most of the time the system runs with little input from the users, however there are quite a few setup screens that need to be on terminal type screens. We are using QT for the more complex setup screens but need to use Ncurses for the runtime stuff. Has anyone had an experience using Ncurses in a C++ class type programming? I have found quite a few wrappers and such but all seem to have been dropped around late 2000 or in one case 2003. What are people actually using for this type of development? Would appreciate any help you could give and if you have a better suggestion would appreciate that as well. Thanks for your time, Charley

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comparison between eles8 and redhat AS
by zhang li 18 May '04

18 May '04

hi, Could anybody know the difference between suse enterprise server 8 and redhat advanced server 3 (or 2.1) in the aspect of glibc/gcc library? Could this difference made some .so files run smoothly on redhat but failed on suse? How could we solve such kind of problem? Thanks. Regards, __________________________________ Do you Yahoo!? SBC Yahoo! - Internet access at a great low price. http://promo.yahoo.com/sbc/

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Compiling problem
by Kennie Cruz 14 May '04

14 May '04

Dear SuSE Programmers, I am trying to compile the Bulk Synchronous Parallel lib (BSPlib for short), which you can download from http://www.bsp-worldwide.org/implmnts/oxtool/ on SuSE version 9.1, but the compilation aborts with a somewhat strange error with the MSG_WAITALL declaration on the /usr/include/bits/socket.h at line 194. Here is the complete error log: In file included from /usr/include/sys/socket.h:35, from ../library_now/bsploadfuns.h:31, from bsploadfuns.c:20: /usr/include/bits/socket.h:194: error: parse error before numeric constant bsploadfuns.c: In function `lookup_remote_load_recv': bsploadfuns.c:124: error: `MSG_WAITALL' undeclared (first use in this function) bsploadfuns.c:124: error: (Each undeclared identifier is reported only once bsploadfuns.c:124: error: for each function it appears in.) bsploadfuns.c: In function `bspnow_isin_topp_globalload': bsploadfuns.c:698: error: `MSG_WAITALL' undeclared (first use in this function) I looked at the /usr/include/bits/socket.h on all my Linux boxes (with Red Hat, SuSE and Debian) and they look the same. Help will be appreciated. -- Kennie J. Cruz Gutierrez, System Administrator Department of Electrical and Computer Engineering University of Puerto Rico, Mayaguez Campus Work Phone: (787) 832-4040 x 3798 Email: Kennie.Cruz(a)ece.uprm.edu Web: http://ece.uprm.edu/~kennie/ [2004-05-14/18:01] Black holes are created when God divides by zero!

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Property Editor
by Prabu Subroto 14 May '04

14 May '04

Dear my friends. I am new in Qt Designer. Anybody would be so nice to tell me how to launch the property editor? I close the property editor by clicking the "x" sign of its window. Thanks. __________________________________ Do you Yahoo!? Yahoo! Movies - Buy advance tickets for 'Shrek 2' http://movies.yahoo.com/showtimes/movie?mid=1808405861

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openSUSE Programming May 2004