Assuming the Cygwin setup program (`setup-x86_64.exe` in this case) is in your Downloads directory and the default directory is your home directory, the following command should work:
```
-.\Downloads\setup-x86_64.exe -P pkg-config,autoconf,automake,clang,libdaemon-devel,popt-devel,make,libao-devel,openssl-devel,libtool,git,wget,flex,bison
+.\Downloads\setup-x86_64.exe -P pkg-config,autoconf,automake,clang, \
+ libdaemon-devel,popt-devel,make,libao-devel,openssl-devel, \
+ libtool,git,wget,flex,bison
```
* Download, configure, compile and install `libconfig`:
```
$ git clone https://github.com/hyperrealm/libconfig.git
-$ ./make
+$ cd libconfig
$ autoreconf -fi
$ ./configure
$ make