WSL: The headers or library files could not be found for zlib (Debian)

[MikuAuahDark]

What did you do?

Attempt to install Pillow

What did you expect to happen?

Installation success and I don't create this issue.

What actually happened?

The headers or library files could not be found for zlib.

What versions of Pillow and Python are you using?

Python 3.5.3 and 956432e

I attach the build_ext --debug output here

MikuAuahDark@Xyrillia-20166:~/Pillow$ LDFLAGS=-L/usr/lib/x86_64-linux-gnu sudo python3 setup.py build_ext --debug
running build_ext
Appending path /home/MikuAuahDark/Pillow/src/libImaging
Looking for `lcms2` using pkg-config.
Package lcms2 was not found in the pkg-config search path.
Perhaps you should add the directory containing `lcms2.pc'
to the PKG_CONFIG_PATH environment variable
No package 'lcms2' found
Package lcms2 was not found in the pkg-config search path.
Perhaps you should add the directory containing `lcms2.pc'
to the PKG_CONFIG_PATH environment variable
No package 'lcms2' found
Looking for `zlib` using pkg-config.
Looking for `freetype2` using pkg-config.
Package freetype2 was not found in the pkg-config search path.
Perhaps you should add the directory containing `freetype2.pc'
to the PKG_CONFIG_PATH environment variable
No package 'freetype2' found
Package freetype2 was not found in the pkg-config search path.
Perhaps you should add the directory containing `freetype2.pc'
to the PKG_CONFIG_PATH environment variable
No package 'freetype2' found
Looking for `libopenjp2` using pkg-config.
Package libopenjp2 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libopenjp2.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libopenjp2' found
Package libopenjp2 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libopenjp2.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libopenjp2' found
Looking for `libimagequant` using pkg-config.
Package libimagequant was not found in the pkg-config search path.
Perhaps you should add the directory containing `libimagequant.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libimagequant' found
Package libimagequant was not found in the pkg-config search path.
Perhaps you should add the directory containing `libimagequant.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libimagequant' found
Looking for `libtiff-5` using pkg-config.
Package libtiff-5 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libtiff-5.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libtiff-5' found
Package libtiff-5 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libtiff-5.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libtiff-5' found
Looking for `libtiff-4` using pkg-config.
Package libtiff-4 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libtiff-4.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libtiff-4' found
Package libtiff-4 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libtiff-4.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libtiff-4' found
Looking for `libjpeg` using pkg-config.
Appending path /usr/lib
Appending path /usr/include
Appending path /usr/local/lib
Appending path /usr/local/include
Appending path /lib
Looking for zlib
Checking for include file zlib.h in /home/MikuAuahDark/Pillow/src/libImaging
Checking for include file zlib.h in /usr/include
Found zlib.h
Couldn't find library z in ['/usr/lib', '/usr/local/lib', '/lib']
Looking for jpeg
Checking for include file jpeglib.h in /home/MikuAuahDark/Pillow/src/libImaging
Checking for include file jpeglib.h in /usr/include
Found jpeglib.h
Couldn't find library jpeg in ['/usr/lib', '/usr/local/lib', '/lib']
Looking for jpeg2000
Checking for openjpeg-#.# in /home/MikuAuahDark/Pillow/src/libImaging
Checking for openjpeg-#.# in /usr/include
Checking for openjpeg-#.# in /usr/local/include
Checking for openjpeg-#.# in /usr/include/python3.5m
Looking for imagequant
Checking for include file libimagequant.h in /home/MikuAuahDark/Pillow/src/libImaging
Checking for include file libimagequant.h in /usr/include
Checking for include file libimagequant.h in /usr/local/include
Checking for include file libimagequant.h in /usr/include/python3.5m
Looking for tiff
Checking for include file tiff.h in /home/MikuAuahDark/Pillow/src/libImaging
Checking for include file tiff.h in /usr/include
Checking for include file tiff.h in /usr/local/include
Checking for include file tiff.h in /usr/include/python3.5m
Looking for freetype
Couldn't find library freetype in ['/usr/lib', '/usr/local/lib', '/lib']
Looking for lcms
Checking for include file lcms2.h in /home/MikuAuahDark/Pillow/src/libImaging
Checking for include file lcms2.h in /usr/include
Checking for include file lcms2.h in /usr/local/include
Checking for include file lcms2.h in /usr/include/python3.5m
Looking for webp
Checking for include file webp/encode.h in /home/MikuAuahDark/Pillow/src/libImaging
Checking for include file webp/encode.h in /usr/include
Checking for include file webp/encode.h in /usr/local/include
Checking for include file webp/encode.h in /usr/include/python3.5m
Looking for webpmux
Checking for include file webp/mux.h in /home/MikuAuahDark/Pillow/src/libImaging
Checking for include file webp/mux.h in /usr/include
Checking for include file webp/mux.h in /usr/local/include
Checking for include file webp/mux.h in /usr/include/python3.5m


The headers or library files could not be found for zlib,
a required dependency when compiling Pillow from source.

Please see the install instructions at:
   https://pillow.readthedocs.io/en/latest/installation.html

(usual exception message of missing dependencies here)

Additional note:

• Debian is running inside WSL (Linux environment under Windows, not MinGW nor Cygwin).

• Debian 9.3 "Stretch"

• zlib is installed. pkg-config zlib outputs -lz. I can't install libjpeg8-dev because it's replaced by libjpeg62-turbo-dev.

[aclark4life]

Pretty sure we don't support the Windows Subsystem for Linux … sorry! Please reopen if you want to discuss further.

[MikuAuahDark]

I'm not sure why it's not supported. Like, it has the needed libraries (zlib) there, but it seems Pillow pick wrong paths as you can see in this line

Couldn't find library z in ['/usr/lib', '/usr/local/lib', '/lib']

Also Pillow seems ignore my LDFLAGS as you can see I add LDFLAGS=-L/usr/lib/x86_64-linux-gnu before invoking the command.