Hello everyone, I've installed successfully zip 0.3.1 with Nimble on Windows. 
I'm using Nim release is 1.6.0 (but I have same problem on another PC with Nim 
1.4.4). When trying to build a program importing zip module, it fails. Minimal 
code to trigger the problem is:
    
    
    import zip/zipfiles
    
    
    Run

then I get:

PS C:UsersAndrea> nim c -r 
"c:UsersAndreaDocumentsNimworking_codezip_import.nim" Hint: used config file 
'C:UsersAndrea.choosenimtoolchainsnim-1.6.0confignim.cfg' [Conf] Hint: used 
config file 'C:UsersAndrea.choosenimtoolchainsnim-1.6.0configconfig.nims' [Conf]

c:UsersAndreaDocumentsNimworking_codezip_import.nim(1, 11) Warning: imported 
and not used: 'zipfiles' [UnusedImport] CC: libzip_all CC: 
stdlib_digitsutils.nim CC: stdlib_assertions.nim CC: stdlib_dollars.nim

C:UsersAndrea.nimblepkgszip-0.3.1zipprivatelibzip_all.c:34:10: fatal error: 
zlib.h: No such file or directory
    

34 | #include <zlib.h>
    | ^~~~~~~~

compilation terminated. Error: execution of an external compiler program 
'gcc.exe -c -w -fmax-errors=3 -mno-ms-bitfields -DWIN32_LEAN_AND_MEAN 
-IC:UsersAndrea.choosenimtoolchainsnim-1.6.0lib 
-Ic:UsersAndreaDocumentsNimworking_code -o 
C:UsersAndreanimcachezip_import_dlibzip_all.c.o 
C:UsersAndrea.nimblepkgszip-0.3.1zipprivatelibzip_all.c' failed with exit code: 
1

Did I execute something wrong (I'm not very solid on Nim...)? Thank you.

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