[Interest] link error (and probably a dumb question)
thiago.macieira at intel.com
Wed Sep 16 20:04:38 CEST 2015
On Wednesday 16 September 2015 11:19:23 René J.V. Bertin wrote:
> .obj/qsql_sqlite.o: In function `QString::toLower() const &':
> ./src/corelib/tools/qstring.h:389: undefined reference to
> `QString::toLower_helper(QString const&)'
As Andreas pointed out and you've found out, the problem is mixing different Qt
versions. Your headers are from Qt 5.5, as evidenced by the fact that the
rvalue-ref QString::toLower() inline function was found (added in Qt 5.4,
actually, in 19dd9a0ebd570ac134e115f2339912a1015ecde5), but the corresponding
out-of-line implementation in toLower_helper() is missing during linking.
This means your -lQt5Core found an older (< 5.4) version of QtCore.
Thiago Macieira - thiago.macieira (AT) intel.com
Software Architect - Intel Open Source Technology Center
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