rtl-sdr: compiling problems under windows using cygwin?

Hi all, I just tried compiling rtl-sdr under cygwin and got the following output. maybe someone has a tip for me here: $ make Scanning dependencies of target convenience_static [ 5%] Building C object src/CMakeFiles/convenience_static.dir/convenience/conve nience.c.o Linking C static library libconvenience_static.a [ 5%] Built target convenience_static Scanning dependencies of target rtlsdr_shared [ 10%] Building C object src/CMakeFiles/rtlsdr_shared.dir/librtlsdr.c.o [ 15%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_e4k.c.o [ 20%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_fc0012.c.o [ 25%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_fc0013.c.o [ 30%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_fc2580.c.o [ 35%] Building C object src/CMakeFiles/rtlsdr_shared.dir/tuner_r82xx.c.o Linking C shared library cygrtlsdr-0.dll [ 35%] Built target rtlsdr_shared Scanning dependencies of target rtl_adsb [ 40%] Building C object src/CMakeFiles/rtl_adsb.dir/rtl_adsb.c.o Linking C executable rtl_adsb.exe libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x18b): undefined reference to `rtlsdr_set_tuner_gain_mode' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x1a7): undefined reference to `rtlsdr_get_tuner_gains' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x1c8): undefined reference to `rtlsdr_get_tuner_gains' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x275): undefined reference to `rtlsdr_set_center_freq' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x2f5): undefined reference to `rtlsdr_set_sample_rate' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x375): undefined reference to `rtlsdr_set_direct_sampling' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x474): undefined reference to `rtlsdr_set_offset_tuning' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x4f4): undefined reference to `rtlsdr_set_tuner_gain_mode' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x575): undefined reference to `rtlsdr_set_tuner_gain_mode' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x58b): undefined reference to `rtlsdr_set_tuner_gain' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x651): undefined reference to `rtlsdr_set_freq_correction' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x6bc): undefined reference to `rtlsdr_reset_buffer' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x70b): undefined reference to `rtlsdr_get_device_count' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x770): undefined reference to `rtlsdr_get_device_usb_strings' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x7ff): undefined reference to `rtlsdr_get_device_usb_strings' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x83b): undefined reference to `rtlsdr_get_device_usb_strings' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x89d): undefined reference to `rtlsdr_get_device_usb_strings' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x918): undefined reference to `rtlsdr_get_device_name' libconvenience_static.a(convenience.c.o):convenience.c:(.text+0x9ca): undefined reference to `rtlsdr_get_device_name' collect2: Fehler: ld gab 1 als Ende-Status zurück src/CMakeFiles/rtl_adsb.dir/build.make:88: die Regel für Ziel „src/rtl_adsb.exe“ scheiterte make[2]: *** [src/rtl_adsb.exe] Fehler 1 CMakeFiles/Makefile2:175: die Regel für Ziel „src/CMakeFiles/rtl_adsb.dir/all“ s cheiterte make[1]: *** [src/CMakeFiles/rtl_adsb.dir/all] Fehler 2 Makefile:117: die Regel für Ziel „all“ scheiterte make: *** [all] Fehler 2 --- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. http://www.avast.com