Adding a custom sqlite function to a Qt application in linux

Asked Mar 14 '18 at 11:49

Active Mar 17 '18 at 10:44

Viewed 261 times

I am trying to add a custom sqlite3 regexp function into my Qt application (as recommended by this answer). it works fine in windows but in fedora i get this error:

:-1: error: sqlite3.o: undefined reference to symbol 'dlclose@@GLIBC_2.2.5'

after adding LIBS += -ldl to .pro, compile is ok but when run command query.exec(); return value is false without any description and qtregexp() function don't run.

Edit:

after comment

LIBS += -ldl
SOURCES +=  sqlite\sqlite3.c
HEADERS  += sqlite\sqlite3.h

and add

LIBS += -lsqlite3
to .pro i get segmentation fault with sqlite3_create_function .

if i open a database with native sqlite3 API (sqlite3_open) Instead handle of QSqlDatabase , sqlite3_create_function works very well

edited Mar 17 '18 at 10:44

asked Mar 14 '18 at 11:49

aminM

Does your code try to retrieve the error message? – CL. Mar 14 '18 at 17:43
hi CL, output of `db.lastError().text()` is " ". – aminM Mar 17 '18 at 05:56

Adding a custom sqlite function to a Qt application in linux

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