If I try to compile tor like so: ./configure --enable-static-libevent --enable-static-openssl --enable-static-zlib --with-libevent-dir=/path/to/lib --with-zlib-dir=/path/to/lib --with-openssl-dir=/path/to/lib --prefix=/path/to/prefix I get a bunch of angry errors and tor refuses to build. I've tried this a few ways -- statically linking libz into openssl, dynamically linking it, etc. And I can statically link everything on OS X and Linux with basically the same command line, so it seems to be a Windows-specific thing that I am just not able to see. I've attached the config.log too, even though it configures fine, just to make sure someone can reproduce it. /c/MinGW/bin/gcc.exe -O -g -I/c/Users/erinn/build-scripts.git/bundles/built -alpha/include -Wall -fno-strict-aliasing -L/c/Users/erinn/build-scripts.git/osx -bundles/built-alpha/lib -L/c/Users/erinn/build-scripts.git/bundles/built-al pha/lib -L/c/Users/erinn/build-scripts.git/bundles/built-alpha/lib -Wl,--nxc ompat -Wl,--dynamicbase -o tor-gencert.exe tor-gencert.o ../common/libor.a ../co mmon/libor-crypto.a -lm /c/Users/erinn/build-scripts.git/bundles/built-alpha /lib/libz.a /c/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libssl. a /c/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a -lws2 _32 -lgdi32 -lpthread c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x6d): undefined reference to `inflateEnd' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x89): undefined reference to `deflateEnd' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x39a): undefined reference to `deflate' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x488): undefined reference to `zError' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x56b): undefined reference to `inflate' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x5c8): undefined reference to `zError' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x66b): undefined reference to `inflateInit_' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x756): undefined reference to `deflate' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x7d8): undefined reference to `zError' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x84a): undefined reference to `deflateInit_' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x933): undefined reference to `inflate' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0x9cf): undefined reference to `deflate' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0xa04): undefined reference to `inflateEnd' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0xa0f): undefined reference to `deflateEnd' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0xab4): undefined reference to `inflateInit_' c:/Users/erinn/build-scripts.git/bundles/built-alpha/lib/libcrypto.a(c_zlib. o):c_zlib.c:(.text+0xb20): undefined reference to `deflateInit_' collect2: ld returned 1 exit status make[5]: *** [tor-gencert.exe] Error 1 make[5]: Leaving directory `/c/Users/erinn/build-scripts.git/bundles/tor-0.2 .3.1-alpha/src/tools' make[4]: *** [all-recursive] Error 1 make[4]: Leaving directory `/c/Users/erinn/build-scripts.git/bundles/tor-0.2 .3.1-alpha/src/tools' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/c/Users/erinn/build-scripts.git/bundles/tor-0.2 .3.1-alpha/src' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/c/Users/erinn/build-scripts.git/bundles/tor-0.2 .3.1-alpha' make[1]: *** [all] Error 2 make[1]: Leaving directory `/c/Users/erinn/build-scripts.git/bundles/tor-0.2 .3.1-alpha' make: *** [build-tor] Error 2