Updated git repository on my cygwin(1.7.7-1)+winxp box this weekend and tried
rebuild gnuradio
./configure reported usrp is not to be built due to not able to detect libusb
I do have libusb-win32 0.1.12.2-1 in cygwin
Looked at the config.log, I found it insists on checking pkgconfig file
libusb.pc, which does not exist.
I manually created that file. Then it goes a bit further.
configure:24742: Checking for LIBUSB version 'libusb'
configure:24890: checking for USB
configure:24898: $PKG_CONFIG --exists --print-errors "${libusb_name}"
configure:24901: $? = 0
configure:24946: $PKG_CONFIG --exists --print-errors "${libusb_name}"
configure:24949: $? = 0
configure:24966: $PKG_CONFIG --exists --print-errors "${libusb_name}"
configure:24969: $? = 0
configure:25017: result: yes
configure:25039: checking libusb for header usb.h
configure:25054: gcc -c -I/usr/include conftest.c >&5
configure:25054: $? = 0
configure:25060: result: yes
configure:25089: checking libusb for function usb_bulk_write in library usb
configure:25107: gcc -o conftest.exe conftest.c -lusb >&5
configure:25107: $? = 0
configure:25114: result: yes
configure:25136: checking libusb for symbol usb_debug in library usb
configure:25150: gcc -o conftest.exe -I/usr/include conftest.c -lusb >&5
/tmp/ccaJXA3I.o:conftest.c:(.text+0x2c): undefined reference to `_usb_debug'
I really don't know how that can be failed? checked the libusb-win32 source
codes that usb_debug is indeed in usb.c
I feel gnuradio support in cygwin is becoming more and more fragile.
anyone has success in building usrp in cygwin recently?
Thanks
Kyle
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