Cannot use LibHaru because cannot find the reference of zlib

Question

I am trying to build a program that will hopefully create dynamic .pdf files. I have actually developed a similar project with PHP for web, but now I want to write it with C++.

This resulted me to rebuild those three libraries (zlib, libpng and libharu) more than time times for the last four days. I have read all the relevant entries in the web (including this stack overflow entry) I understood that my problem is that the compiler cannot find zlib (maybe I understood the problem wrongly)

I want to explain what I've done. Please note that I'm using Codeblocks IDE with GNU GCC C++ Compiler (MingGW) in Windows 7. First, I compiled zlib 1.2.7 and created my zlib.a static library file (I'm using static libraries). Secondly, I compiled libpng 1.5.13 and created my libpng.a. Thirdly, I compiled libharu (snapshot) and created my libharu.a static library file. Then I added those library files to my project. (I did everything explained in here). And at last, compiled my project.

Well, I shall say I did those all steps more than ten times, changing some small things, but everytime I am getting an error. I have even tried the official examples in libharu.org. The most weird thing is that my error is NOT stable. Nearly everytime I got different errors! But mostly it was related with hpdf_streams.c.
My recent log file:

C:\Libs\libharu-201301131604\libharu.a(hpdf_streams.o):hpdf_streams.c:(.text+0xd4a): undefined reference to `deflateInit_'
C:\Libs\libharu-201301131604\libharu.a(hpdf_streams.o):hpdf_streams.c:(.text+0xdfa): undefined reference to `deflate'
C:\Libs\libharu-201301131604\libharu.a(hpdf_streams.o):hpdf_streams.c:(.text+0xe78): undefined reference to `deflateEnd'
C:\Libs\libharu-201301131604\libharu.a(hpdf_streams.o):hpdf_streams.c:(.text+0xee2): undefined reference to `deflate'
C:\Libs\libharu-201301131604\libharu.a(hpdf_streams.o):hpdf_streams.c:(.text+0xf7e): undefined reference to `deflateEnd'
C:\Libs\libharu-201301131604\libharu.a(hpdf_streams.o):hpdf_streams.c:(.text+0xfb7): undefined reference to `deflateEnd'
C:\Libs\libharu-201301131604\libharu.a(hpdf_streams.o):hpdf_streams.c:(.text+0xff1): undefined reference to `deflateEnd'

In what order did you list the libraries? The correct order would be `-lharu -lpng -lz`, or the linker might not think zlib is being used. — James M, Jan 13 '13 at 13:21
James McLaughlin, oops I though it should be -lz -lpng -lharu since lharu will need lz and lpng; and lpng will need lz. I will fix it, thank you :) — Equalities of polynomials, Jan 13 '13 at 13:26
Unfortunately, I works for zlib, but now it gives errors about pngtest.c when I add and declare int WINAPI WinMain(...), should I compile libpng without this file (pngtest.c) Can I edit my question according to this? — Equalities of polynomials, Jan 13 '13 at 13:41

score 0 · Answer 1 · answered Feb 06 '13 at 19:49

0

We just had this issue. You need to recompile zlib with WIN_API off. Or use the dll's and not the static library.

answered Feb 06 '13 at 19:49

Cannot use LibHaru because cannot find the reference of zlib

1 Answers1