zlib under Qt5

gkavrecic

I have a program originally developed under Qt4 which used zlib.

I have in the *.PRO file a line stating LIBS += libz.a which links the zLib

While compiling the same project under Qt5 I get
***.cpp:-1: error: undefined reference to 'inflate'

I compile it in Windows with MingW.
I can compile the same project in Linux and ARM in Qt5.

How comes?
How to resolve? - (I can't use qCompress/qUncompress as I'm reading ZIP compressed files)

JonB

While compiling the same project under Qt5 I get
***.cpp:-1: error: undefined reference to 'inflate'

Can you confirm you get this error while compiling, not linking? If it's while compiling it would be a header file issue, not a library.

gkavrecic

Sometimes just asking a question makes you really think...

In order to use zlib I had to add LIBS += -lz

Hopes it help others

gkavrecic

@JonB, you're right.
This error normally pops up during linking.
Sorry for the typo.