Setting zlib path when compiling on Windows,
- Re: Setting zlib path when compiling on Windows, Thomas Klausner (2017/10/02 21:28:00)
On Mon, Oct 02, 2017 at 10:51:25PM +0200, Andreas Falkenhahn wrote: > I'm trying to compile libzip on Windows using CMake to generate > makefiles. Libzip needs zlib so I'm doing the following: > > mkdir build > cd build > cmake -DZLIB_LIBRARY=../../../zlib-1.2.11 > -DZLIB_INCLUDE_DIR=../../../zlib-1.2.11 .. > > This doesn't work, however. I get the following error: > > CMake Error at C:/Program Files > (x86)/CMake/share/cmake-3.2/Modules/FindPackageHandleStandardArgs.cmake:138 > (message): > Could NOT find ZLIB (missing: ZLIB_LIBRARY ZLIB_INCLUDE_DIR) > > Why is that? I have defined ZLIB_LIBRARY and ZLIB_INCLUDE_DIR to point > to the latest zlib. > > I've also tried the following: > > mkdir build > cd build > cmake .. -DZLIB_LIBRARY=../../../zlib-1.2.11 > -DZLIB_INCLUDE_DIR=../../../zlib-1.2.11 > > When I run CMake like this, I get the following two warnings: > > CMake Warning: > Manually-specified variables were not used by the project: > ZLIB_INCLUDE_DIR > ZLIB_LIBRARY > > In comparison to the first approach, however, build files are now written to > my build > directory. When running nmake, however, only zlib seems to get built. libzip > itself > isn't built at all. This confuses me. We do not distribute infrastructure to build zlib. zlib needs to be built first separately. > I'm out of ideas here. What am I doing wrong? When I run it locally (just 'cmake ..', and on NetBSD, not Linux) I get ZLIB_INCLUDE_DIR:PATH=/usr/include ZLIB_LIBRARY_DEBUG:FILEPATH=ZLIB_LIBRARY_DEBUG-NOTFOUND ZLIB_LIBRARY_RELEASE:FILEPATH=/usr/lib/libz.so in my CMakeCache.txt file. So it seems that ZLIB_LIBRARY might have to point to the actual library and not a directory. Hope this helps, Thomas
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