Undefined reference to 'inflateInit2_'

Question

I'm using Code Blocks IDE and I want to install Tiled Map Editor for SFML. So, I downloaded the source and imported it to my project. Unfortunately, the build finished with an error due to missing zlib library. I downloaded it and built again. This time I received an error that reads:

undefined reference to `inflateInit2_'|
undefined reference to `inflateEnd'|
undefined reference to `inflateEnd'|

On the Internet I found the advice to join the linker command -lz, but the compiler refuses throwing the error: cannot find -lz. Does anyone know how to fix it?

Bernadette

You need to put zlib somewhere your compiler can find it. On Linux, that means /usr/lib or /usr/local/lib (normally make install would handle this), and on Windows there is no standard way, but you either point your compiler to the DLL, or put the DLL inside your compiler's lib folder (mingw doesn't search the PATH on windows last time I checked). What's your OS? – Ripe

@add I solved the problem put the DLL inside my compiler. Thanks! – Bernadette

related: #1632701 – Adigranth

Answer 1

Use the option -L<path> to tell the linker where to find libz.so.x.y.z.

For your reference: http://gcc.gnu.org/onlinedocs/gcc/Directory-Options.html

Delitescence

Answer 2

you can see where your zlib is installed like this :

/sbin/ldconfig -p| grep libz.so

it should find one or more entries if installed, otherwise it will return blank line

Weylin

This would suite as comment, but does not answer the question. – Delitescence

Yes so it seems – Weylin