Linking Error to lib on OSX

[billbonney]

Hi,

I am building Qt5.4 from source (gitorious) and I having a problem linking in my project. I have built from source successfully (I think) using
@./configure -developer-build -opensource -nomake examples -nomake tests@
This assumes -system-zlib evaluated to use system version

The link error I get is
@Undefined symbols for architecture x86_64:
"_z_adler32", referenced from:
QuaAdler32::calculate(QByteArray const&) in quaadler32.o
QuaAdler32::reset() in quaadler32.o
QuaAdler32::update(QByteArray const&) in quaadler32.o
"_z_crc32", referenced from:
QuaCrc32::calculate(QByteArray const&) in quacrc32.o
QuaCrc32::reset() in quacrc32.o
QuaCrc32::update(QByteArray const&) in quacrc32.o
_unzReadCurrentFile in unzip.o
_zipWriteInFileInZip in zip.o
"_z_deflate", referenced from:
_zipWriteInFileInZip in zip.o
_zipCloseFileInZipRaw in zip.o
"_z_deflateEnd", referenced from:
_zipCloseFileInZipRaw in zip.o
"z_deflateInit2", referenced from:
_zipOpenNewFileInZip3 in zip.o
"_z_get_crc_table", referenced from:
_unzOpenCurrentFile3 in unzip.o
_zipOpenNewFileInZip3 in zip.o
"_z_inflate", referenced from:
_unzReadCurrentFile in unzip.o
"_z_inflateEnd", referenced from:
_unzCloseCurrentFile in unzip.o
"z_inflateInit2", referenced from:
_unzOpenCurrentFile3 in unzip.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [debug/apmplanner2.app/Contents/MacOS/apmplanner2] Error 1
20:38:41: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project qgroundcontrol (kit: Qt5.4 (source))
When executing step "Make"
20:38:41: Elapsed time: 02:31.@
I have LIBS += -lz in the pro file, but it fails.

Any help on how to fix this, or debug this would be awesome.

NOTE: the code can be seen at http://github.com/diydrones/apm_planner and it builds ok when using Qt5.4 pre-built binaries.

[SGaist]

Hi,

Looks like your are linking to a zlib not built for x86_64, are you sure you are using the right one ?

[billbonney]

I'm building Qt from source on OSX 10.10 64 bit. I'm not electing the sib, but expecting Qt to pull the correct one. Are you suggesting I need to explicitly state 64bit on a 64bit system?

The same code builds ok using prebuilt Qt on OSX 10.10 64bit. So I don't understand why it fails.

Thanks for any pointers in right direction

[SGaist]

No, you don't need to.

What are the options you gave to configure when building your own version of Qt ?

[billbonney]

See the first post. It was on OSX 10.10.

[SGaist]

Can you show the linker line that fails ?

Also, which version of Xcode are you using ?

[billbonney]

Xcode 6.1. It's all latest versions for 10.10.

[billbonney]

here's the linker line, see https://gist.github.com/billbonney/f8e6db162672078bc14d

[billbonney]

here's the linker line, see https://gist.github.com/billbonney/f8e6db162672078bc14d