[win32] [msvc] minizip-ng 4.1.0 still fails to locate zlib-ng within the installation path.

[Demonese]

First, I compiled and installed zlib-ng (Debug configuration):

cmake -S %cd%\zlib-ng -B %cd%\zlib-ng-build -G "Visual Studio 18 2026" -A x64 -DCMAKE_INSTALL_PREFIX=%cd%\install -DZLIB_ALIASES=OFF -DBUILD_TESTING=OFF -DWITH_GTEST=OFF

cmake --build   %cd%\zlib-ng-build --config Debug
cmake --install %cd%\zlib-ng-build --config Debug

(Omitting large amount of command line output)...

-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/lib/zlib-ngd.lib
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/bin/zlib-ngd2.dll
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/lib/zlibstatic-ngd.lib
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/include/zlib-ng.h
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/include/zlib_name_mangling-ng.h
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/include/zconf-ng.h
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/lib/pkgconfig/zlib-ng.pc
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/lib/cmake/zlib-ng/zlib-ng-targets.cmake
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/lib/cmake/zlib-ng/zlib-ng-targets-debug.cmake
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/lib/cmake/zlib-ng/zlib-ng-config.cmake
-- Installing: C:/Users/Admin/AppData/Local/Temp/x-ng/install/lib/cmake/zlib-ng/zlib-ng-config-version.cmake

Then, I tried to configure minizip-ng:

cmake -S %cd%\minizip-ng -B %cd%\minizip-ng-build -G "Visual Studio 18 2026" -A x64 -DCMAKE_INSTALL_PREFIX=%cd%\install -DMZ_COMPAT=OFF -DMZ_BZIP2=OFF -DMZ_LZMA=OFF -DMZ_ZSTD=OFF -DMZ_FETCH_LIBS=OFF -DMZ_ZLIB_FLAVOR=zlib-ng

-- Selecting Windows SDK version 10.0.26100.0 to target Windows 10.0.26200.
-- The C compiler identification is MSVC 19.50.35723.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files/Microsoft Visual Studio/18/Community/VC/Tools/MSVC/14.50.35717/bin/Hostx64/x64/cl.exe - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Using CMake version 4.2.3
-- Looking for stdint.h
-- Looking for stdint.h - found
-- Looking for inttypes.h
-- Looking for inttypes.h - found
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of off64_t
-- Check size of off64_t - failed
-- Looking for fseeko
-- Looking for fseeko - not found
-- Looking for symlink
-- Looking for symlink - not found
-- Looking for readlink
-- Looking for readlink - not found
-- ZLIB library not found
-- Compression not supported due to missing libraries
-- Looking for BCryptGenRandom
-- Looking for BCryptGenRandom - found
-- The following features have been enabled:

 * MZ_PKCRYPT, Enables PKWARE traditional encryption
 * MZ_WZAES, Enables WinZIP AES encryption

-- The following features have been disabled:

 * MZ_COMPAT, Enables compatibility layer
 * MZ_ZLIB, Enables ZLIB compression
 * MZ_BZIP2, Enables BZIP2 compression
 * MZ_LZMA, Enables LZMA & XZ compression
 * MZ_ZSTD, Enables ZSTD compression
 * MZ_LIBCOMP, Enables Apple compression
 * MZ_FETCH_LIBS, Enables fetching third-party libraries if not found
 * MZ_FORCE_FETCH_LIBS, Enables fetching third-party libraries always
 * MZ_OPENSSL, Enables OpenSSL for encryption
 * MZ_LIBBSD, Builds with libbsd crypto random
 * MZ_ICONV, Enables iconv string encoding conversion library
 * MZ_COMPRESS_ONLY, Only support compression
 * MZ_DECOMPRESS_ONLY, Only support decompression
 * MZ_FILE32_API, Builds using posix 32-bit file api
 * MZ_BUILD_TESTS, Builds minizip test executable
 * MZ_BUILD_UNIT_TESTS, Builds minizip unit test project
 * MZ_BUILD_FUZZ_TESTS, Builds minizip fuzzer executables
 * MZ_CODE_COVERAGE, Builds with code coverage flags

-- Configuring done (8.1s)
-- Generating done (0.1s)
-- Build files have been written to: C:/Users/Admin/AppData/Local/Temp/x-ng/minizip-ng-build

[Demonese]

Well, the solution was actually quite simple. I modified the FindZLIB-NG.cmake file, and then it was able to locate zlib-ng.

index 2e2a366..223109a 100644
--- a/cmake/FindZLIB-NG.cmake
+++ b/cmake/FindZLIB-NG.cmake
@@ -14,9 +14,9 @@ if(ZLIB-NG_INCLUDE_DIRS)
 endif()

 if(BUILD_SHARED_LIBS)
-    set(LIB_NAMES z-ng zlib-ng libz-ng)
+    set(LIB_NAMES z-ng zlib-ng zlib-ngd libz-ng)
 else()
-    set(LIB_NAMES zlibstatic-ng libz-ng.a z-ng)
+    set(LIB_NAMES zlibstatic-ng zlibstatic-ngd libz-ng.a z-ng)
 endif()

 find_library(ZLIB-NG_LIBRARY NAMES ${LIB_NAMES})

(Omitting large amount of command line output)...

-- Found zlib-ng: C:/Users/Admin/AppData/Local/Temp/x-ng/install/lib/zlibstatic-ngd.lib, C:/Users/Admin/AppData/Local/Temp/x-ng/install/include
-- Using ZLIB-NG

(Omitting large amount of command line output)...

However, I'm worried this might introduce other issues. Perhaps we could maintain different search lists based on the CMAKE_BUILD_TYPE instead?

[Coeur]

Feel free to open a PR with that fix, and ckerr will review it. :)