Compilation error - missing zlib.h
Compiler ErrorsCompilationZlibCompiler Errors Problem Overview
I am trying to compile software on Blue Gene Q using IBM XL compilers and I got this error message:
"iostreams/zlib.cpp", line 19.10: 1540-0836 (S) The #include file "zlib.h" is not found.
make[3]: *** [zlib.o] Error 1
I have installed a new version of zlib and updated LD_LIBRARY_PATH with $HOME/zlib/include
Am I missing something?
Compiler Errors Solutions
Solution 1 - Compiler Errors
You are missing zlib.h header file, on Linux install it via:
sudo apt-get install libz-dev
As a matter of fact, the module presents as zlib1g-dev in the apt repo, so this is the up-to-date call (Feb 2019):
sudo apt install zlib1g-dev
On Fedora: sudo dnf install zlib-devel (in older versions: sudo dnf install libz-devel).
This will provide the development support files for a library implementing the deflate compression method found in gzip and PKZIP.
If you've already zlib library, make sure you're compiling your code sources with -lz. See: <https://stackoverflow.com/q/22337896/55075>;.
Solution 2 - Compiler Errors
You have installed the library in a non-standard location ($HOME/zlib/). That means the compiler will not know where your header files are and you need to tell the compiler that.
You can add a path to the list that the compiler uses to search for header files by using the -I (upper-case i) option.
Also note that the LD_LIBRARY_PATH is for the run-time linker and loader, and is searched for dynamic libraries when attempting to run an application. To add a path for the build-time linker use the -L option.
All-together the command line should look like
$ c++ -I$HOME/zlib/include some_file.cpp -L$HOME/zlib/lib -lz
Solution 3 - Compiler Errors
I also had the same problem. Then I installed the zlib, still the problem remained the same. Then I added the following lines in my .bashrc and it worked. You should replace the path with your zlib installation path. (I didn't have root privileges).
export PATH =$PATH:$HOME/Softwares/library/Zlib/zlib-1.2.11/
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$HOME/Softwares/library/Zlib/zlib-1.2.11/lib/
export LIBRARY_PATH=$LIBRARY_PATH:$HOME/Softwares/library/Zlib/zlib-1.2.11/lib/
export C_INCLUDE_PATH=$HOME/Softwares/library/Zlib/zlib-1.2.11/include/
export CPLUS_INCLUDE_PATH=$HOME/Softwares/library/Zlib/zlib-1.2.11/include/
export PKG_CONFIG_PATH=$HOME/Softwares/library/Zlib/zlib-1.2.11/lib/pkgconfig
Solution 4 - Compiler Errors
In openSUSE 19.2 installing the patterns-hpc-development_node package fixed this issue for me.
Solution 5 - Compiler Errors
Maybe you can download zlib.h from https://dev.w3.org/Amaya/libpng/zlib/zlib.h, and put it in the directory to solve the problem.