How to compile static libpng with static zlib [exe linker errors]?

How to compile static libpng with static zlib [exe linker errors]?

Simion32

Member #9,622

March 2008

I'm at my wit's end trying to get this to work. I've been struggling for hours on end with CMake trying (and retrying) to do the following:

(1) compile zlib as static
(2) compile libpng as static with the static zlib I just got
(3) use this conglomerated library in an executable program

The result of this is always some variation of:

#SelectExpand
  1C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngread.obj):pngread.c|| undefined reference to `_imp__inflateEnd'|
  2C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngread.obj):pngread.c|| undefined reference to `_imp__inflate'|
  3C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngread.obj):pngread.c|| undefined reference to `_imp__inflateInit_'|
  4C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngread.obj):pngread.c|| undefined reference to `_imp__inflateInit_'|
  5C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(png.obj):png.c|| undefined reference to `_imp__inflateReset'|
  6C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(png.obj):png.c|| undefined reference to `_imp__crc32'|
  7C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(png.obj):png.c|| undefined reference to `_imp__crc32'|
  8C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngwrite.obj):pngwrite.c|| undefined reference to `_imp__deflateEnd'|
  9C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngwrite.obj):pngwrite.c|| undefined reference to `_imp__deflate'|
 10C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngrutil.obj):pngrutil.c|| undefined reference to `_imp__inflate'|
 11C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngrutil.obj):pngrutil.c|| undefined reference to `_imp__inflateReset'|
 12C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngrutil.obj):pngrutil.c|| undefined reference to `_imp__inflate'|
 13C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngrutil.obj):pngrutil.c|| undefined reference to `_imp__inflateReset'|
 14C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngwutil.obj):pngwutil.c|| undefined reference to `_imp__deflate'|
 15C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngwutil.obj):pngwutil.c|| undefined reference to `_imp__deflate'|
 16C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngwutil.obj):pngwutil.c|| undefined reference to `_imp__deflateReset'|
 17C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngwutil.obj):pngwutil.c|| undefined reference to `_imp__deflate'|
 18C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngwutil.obj):pngwutil.c|| undefined reference to `_imp__deflateReset'|
 19C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngwutil.obj):pngwutil.c|| undefined reference to `_imp__deflate'|
 20C:\Program Files\CodeBlocks\MinGW\lib\libpng12_static.a(pngwutil.obj):pngwutil.c|| undefined reference to `_imp__deflateInit2_'|
 21||=== Build finished: 20 errors, 0 warnings ===|

or sometimes without the prefixes:
undefined reference to `inflateEnd'

I know these functions are from zlib. Linking the executable with the static zlib does not help, no matter what order the libraries are in. :-/

If it matters any, I was able to statically compile/link Allegro 4.4.2, but I can't get these specific libraries to cooperate.

What am I doing wrong? I would appreciate step-by-step instructions (if it's necessary).

Trent Gamblin

Member #261

April 2000

I don't understand what you're trying to do here. You shouldn't link one static library to another. You should build both independantly (you'll need zlib headers to compile libpng though) and then link both libraries to your program.

edit: if those errors are actually from your program build, make sure libpng is linked ahead in order of zlib.

Simion32

Member #9,622

March 2008

Well I was trying to compile both into one library, so that isn't possible? OK, kinda makes sense.

I'm still linking to both libraries for the EXE, and it's still giving me those undefined reference errors (even did a full rebuild).

Going to delete all related the headers and lib files I have and try this once more from scratch...

Trent Gamblin

Member #261

April 2000

Did you link them in the right order?

Simion32

Member #9,622

March 2008

I tried both ways last time.

This time, when compiling libpng the shared version of the library stops on undefined reference errors similar to what is found in the executable. Do I have to specify the dynamic version of zlib in the configure script (using CMake)?

Trent Gamblin

Member #261

April 2000

Where does cmake come into play here? Are you building the library with examples (which have 'main' functions) built into them? What are you using to build libpng, its own build system or your own? Paste the complete output of the build here please.

edit: if it's the libpng examples/tests failing then your zlib isn't built right. It doesn't matter if it's static or dynamic.

Simion32

Member #9,622

March 2008

I've been using CMake to configure, both zlib and libpng. I'm compiling with mingw32-make.

I've re-ran the zlib build with shared lib built (now I have both). Output:

#SelectExpand
  1C:\zlib\build>mingw32-make
  2[  5%] Building C object CMakeFiles/zlib.dir/adler32.obj
  3[ 10%] Building C object CMakeFiles/zlib.dir/compress.obj
  4[ 15%] Building C object CMakeFiles/zlib.dir/crc32.obj
  5[ 20%] Building C object CMakeFiles/zlib.dir/deflate.obj
  6[ 25%] Building C object CMakeFiles/zlib.dir/gzclose.obj
  7[ 30%] Building C object CMakeFiles/zlib.dir/gzlib.obj
  8C:\zlib\gzlib.c: In function 'gz_error':
  9C:\zlib\gzlib.c:518: warning: visibility attribute not supported in this configu
 10ration; ignored
 11[ 35%] Building C object CMakeFiles/zlib.dir/gzread.obj
 12[ 40%] Building C object CMakeFiles/zlib.dir/gzwrite.obj
 13[ 45%] Building C object CMakeFiles/zlib.dir/inflate.obj
 14[ 50%] Building C object CMakeFiles/zlib.dir/infback.obj
 15[ 55%] Building C object CMakeFiles/zlib.dir/inftrees.obj
 16C:\zlib\inftrees.c: In function 'inflate_table':
 17C:\zlib\inftrees.c:330: warning: visibility attribute not supported in this conf
 18iguration; ignored
 19[ 60%] Building C object CMakeFiles/zlib.dir/inffast.obj
 20C:\zlib\inffast.c: In function 'inflate_fast':
 21C:\zlib\inffast.c:324: warning: visibility attribute not supported in this confi
 22guration; ignored
 23[ 65%] Building C object CMakeFiles/zlib.dir/trees.obj
 24C:\zlib\trees.c: In function '_tr_init':
 25C:\zlib\trees.c:410: warning: visibility attribute not supported in this configu
 26ration; ignored
 27C:\zlib\trees.c: In function '_tr_stored_block':
 28C:\zlib\trees.c:883: warning: visibility attribute not supported in this configu
 29ration; ignored
 30C:\zlib\trees.c: In function '_tr_align':
 31C:\zlib\trees.c:919: warning: visibility attribute not supported in this configu
 32ration; ignored
 33C:\zlib\trees.c: In function '_tr_tally':
 34C:\zlib\trees.c:1071: warning: visibility attribute not supported in this config
 35uration; ignored
 36C:\zlib\trees.c: In function '_tr_flush_block':
 37C:\zlib\trees.c:1020: warning: visibility attribute not supported in this config
 38uration; ignored
 39C:\zlib\trees.c: At top level:
 40C:\zlib\trees.c:1244: warning: visibility attribute not supported in this config
 41uration; ignored
 42C:\zlib\trees.c:1244: warning: visibility attribute not supported in this config
 43uration; ignored
 44[ 70%] Building C object CMakeFiles/zlib.dir/uncompr.obj
 45[ 75%] Building C object CMakeFiles/zlib.dir/zutil.obj
 46C:\zlib\zutil.c: In function 'zcfree':
 47C:\zlib\zutil.c:316: warning: visibility attribute not supported in this configu
 48ration; ignored
 49C:\zlib\zutil.c: In function 'zcalloc':
 50C:\zlib\zutil.c:308: warning: visibility attribute not supported in this configu
 51ration; ignored
 52Linking C shared library libzlib1.dll
 53Creating library file: libzlib.dll.a
 54[ 80%] Built target zlib
 55Linking C executable example.exe
 56[ 85%] Built target example
 57Linking C executable example64.exe
 58[ 90%] Built target example64
 59Linking C executable minigzip.exe
 60[ 95%] Built target minigzip
 61Linking C executable minigzip64.exe
 62[100%] Built target minigzip64
 63
 64C:\zlib\build>mingw32-make install
 65[ 80%] Built target zlib
 66[ 85%] Built target example
 67[ 90%] Built target example64
 68[ 95%] Built target minigzip
 69[100%] Built target minigzip64
 70Install the project...
 71-- Install configuration: "MinSizeRel"
 72-- Installing: C:/MinGW/lib/libzlib.dll.a
 73-- Installing: C:/MinGW/bin/libzlib1.dll
 74-- Up-to-date: C:/MinGW/include/zconf.h
 75-- Up-to-date: C:/MinGW/include/zlib.h
 76-- Up-to-date: C:/MinGW/share/man/man3/zlib.3
 77
 78C:\zlib\build>

Do those warnings mean the library is incorrectly built?

Here's libpng compile process:

#SelectExpand
  1C:\libpng\build>mingw32-make
  2Scanning dependencies of target png12
  3[  3%] Building C object CMakeFiles/png12.dir/png.obj
  4[  6%] Building C object CMakeFiles/png12.dir/pngerror.obj
  5[  9%] Building C object CMakeFiles/png12.dir/pngget.obj
  6[ 12%] Building C object CMakeFiles/png12.dir/pngmem.obj
  7[ 16%] Building C object CMakeFiles/png12.dir/pngpread.obj
  8[ 19%] Building C object CMakeFiles/png12.dir/pngread.obj
  9[ 22%] Building C object CMakeFiles/png12.dir/pngrio.obj
 10[ 25%] Building C object CMakeFiles/png12.dir/pngrtran.obj
 11[ 29%] Building C object CMakeFiles/png12.dir/pngrutil.obj
 12[ 32%] Building C object CMakeFiles/png12.dir/pngset.obj
 13[ 35%] Building C object CMakeFiles/png12.dir/pngtrans.obj
 14[ 38%] Building C object CMakeFiles/png12.dir/pngwio.obj
 15[ 41%] Building C object CMakeFiles/png12.dir/pngwrite.obj
 16[ 45%] Building C object CMakeFiles/png12.dir/pngwtran.obj
 17[ 48%] Building C object CMakeFiles/png12.dir/pngwutil.obj
 18Linking C shared library libpng12.dll
 19Creating library file: libpng12.dll.a
 20[ 48%] Built target png12
 21Scanning dependencies of target png12_static
 22[ 51%] Building C object CMakeFiles/png12_static.dir/png.obj
 23[ 54%] Building C object CMakeFiles/png12_static.dir/pngerror.obj
 24[ 58%] Building C object CMakeFiles/png12_static.dir/pngget.obj
 25[ 61%] Building C object CMakeFiles/png12_static.dir/pngmem.obj
 26[ 64%] Building C object CMakeFiles/png12_static.dir/pngpread.obj
 27[ 67%] Building C object CMakeFiles/png12_static.dir/pngread.obj
 28[ 70%] Building C object CMakeFiles/png12_static.dir/pngrio.obj
 29[ 74%] Building C object CMakeFiles/png12_static.dir/pngrtran.obj
 30[ 77%] Building C object CMakeFiles/png12_static.dir/pngrutil.obj
 31[ 80%] Building C object CMakeFiles/png12_static.dir/pngset.obj
 32[ 83%] Building C object CMakeFiles/png12_static.dir/pngtrans.obj
 33[ 87%] Building C object CMakeFiles/png12_static.dir/pngwio.obj
 34[ 90%] Building C object CMakeFiles/png12_static.dir/pngwrite.obj
 35[ 93%] Building C object CMakeFiles/png12_static.dir/pngwtran.obj
 36[ 96%] Building C object CMakeFiles/png12_static.dir/pngwutil.obj
 37Linking C static library libpng12_static.a
 38[ 96%] Built target png12_static
 39Scanning dependencies of target pngtest
 40[100%] Building C object CMakeFiles/pngtest.dir/pngtest.obj
 41C:\libpng\pngtest.c: In function 'pngtest_write_data':
 42C:\libpng\pngtest.c:400: warning: 'io_ptr' is deprecated (declared at C:\libpng\
 43png.h:1254)
 44Linking C executable pngtest.exe
 45CMakeFiles/pngtest.dir/pngtest.obj:pngtest.c:(.text+0x11fc): undefined reference
 46 to `png_libpng_ver'
 47CMakeFiles/pngtest.dir/pngtest.obj:pngtest.c:(.text+0x1237): undefined reference
 48 to `png_libpng_ver'
 49collect2: ld returned 1 exit status
 50mingw32-make[2]: *** [pngtest.exe] Error 1
 51mingw32-make[1]: *** [CMakeFiles/pngtest.dir/all] Error 2
 52mingw32-make: *** [all] Error 2
 53
 54C:\libpng\build>

Trent Gamblin

Member #261

April 2000

Is this a developement version of libpng? Its failing to compile its own tests. In any case, they both seem to have built correctly. The only thing to do is try using them and see if they work.

Simion32

Member #9,622

March 2008

So far, nothing. I tried using these two compiles and I STILL get undefined's.

I might have the wrong ZIP of the source code, is the only conclusion I can reasonably come to.

I'll edit back in here if I get it to work off of a different source version/zip/whatever. It'll be a while before I can try though, I have other things to do now ("maintenance" on a new laptop).

EDIT: Yep, that was the source of all this mess, I was using the wrong zlib source code distribution. Problem SOLVED.

Thank you, Trent, for the help.

Edgar Reynaldo

Major Reynaldo

May 2007

To build zlib you can use win32/makefile.gcc or else you need MSYS. I don't know why you're trying to use cmake to build zlib, because it doesn't come with CMakeLists.txt unless that's a recent addition.

With MinGW

cd zlib
copy win32\makefile.gcc .\makefile.gcc
mingw32-make -fmakefile.gcc
mingw32-make install prefix=c:\mingw -fmakefile.gcc

With MSYS

cd zlib
./configure
mingw32-make
mingw32-make install prefix=/c/mingw

To build libpng, it's pretty much the same except you can use a custom makefile, MSYS, or Cmake.

MinGW

cd png
copy scripts\makefile.mingw .\makefile.mingw
mingw32-make -fmakefile.mingw
mingw32-make install -fmakefile.mingw

MSYS

cd png
./configure --prefix=/c/mingw
mingw32-make
mingw32-make install

Cmake

cd png
mkdir build
cd build
cmake -G "MinGW Makefiles" ..
mingw32-make
mingw32-make install

When building with MinGW or MSYS by themselves, you should get both the static and dynamic libraries by default.

Edit
Too late to the party...

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