Linker can't resolve any references

Bob Cowdery bob@bobcowdery.plus.com
Wed Jun 23 07:18:00 GMT 2010


Hi all,

This is such a basic problem I must be doing something daft. I have a
set of static libraries which I am linking into a dll. None of the
external references seem to be getting resolved. This is on Win7 and I
have MinGW and msys installed using the msys make. I am using Eclipse
CDT but get the same result from the command line. Here is the start of
the build to which I added the -v flag, but it still didn't help me. I
know this set of libraries builds into a shared library ok because I
have done so using Python distutils. However, this time its not Python
at the top end so I can't use that.

Any help would be very much appreciated.

Regards
Bob

C:\LibSDR\src\c\stPlugin\Release>make all
Building target: libstPlugin.dll
Invoking: MinGW C Linker
gcc -v -s -L"C:\libs\fftw"
-L"C:\libs\libusb-win32-device-bin-0.1.12.2\lib\gcc"
-L"C:\libs\pthreads\Pre-built.2\lib" -L"
C:\LibSDR\src\c\Utils\Release" -L"C:\LibSDR\src\c\RingBuffer\Debug"
-L"C:\LibSDR\src\c\Dsp\Release" -L"C:\LibSDR\src\c\O
zyDriver\Release" -L"C:\LibSDR\src\c\SdrMain\Release" -shared
-o"libstPlugin.dll"  ./SDRLibPlugin.o   -lfftw3f-3 -lpthre
adGC2 -lusb -lUtils -lRingBuffer -lDsp -lozydrv -lSdrMain
Reading specs from c:/MinGW/bin/../lib/gcc/mingw32/3.4.5/specs
Configured with: ../gcc-3.4.5-20060117-3/configure --with-gcc
--with-gnu-ld --with-gnu-as --host=mingw32 --target=mingw3
2 --prefix=/mingw --enable-threads --disable-nls
--enable-languages=c,c++,f77,ada,objc,java --disable-win32-registry --d
isable-shared --enable-sjlj-exceptions --enable-libgcj
--disable-java-awt --without-x --enable-java-gc=boehm --disable-l
ibgcj-debug --enable-interpreter --enable-hash-synchronization
--enable-libstdcxx-debug
Thread model: win32
gcc version 3.4.5 (mingw-vista special r3)
 c:/MinGW/bin/../libexec/gcc/mingw32/3.4.5/collect2.exe --shared
-Bdynamic -e _DllMainCRTStartup@12 --enable-auto-image-
base -olibstPlugin.dll -s /mingw/lib/dllcrt2.o
c:/MinGW/bin/../lib/gcc/mingw32/3.4.5/crtbegin.o -LC:\libs\fftw -LC:\libs
\libusb-win32-device-bin-0.1.12.2\lib\gcc
-LC:\libs\pthreads\Pre-built.2\lib -LC:\LibSDR\src\c\Utils\Release
-LC:\LibSDR
\src\c\RingBuffer\Debug -LC:\LibSDR\src\c\Dsp\Release
-LC:\LibSDR\src\c\OzyDriver\Release -LC:\LibSDR\src\c\SdrMain\Rele
ase -Lc:/MinGW/bin/../lib/gcc/mingw32/3.4.5 -Lc:/MinGW/bin/../lib/gcc
-L/mingw/lib/gcc/mingw32/3.4.5 -Lc:/MinGW/bin/../l
ib/gcc/mingw32/3.4.5/../../../../mingw32/lib
-L/mingw/lib/gcc/mingw32/3.4.5/../../../../mingw32/lib -L/mingw/lib -Lc:/Mi
nGW/bin/../lib/gcc/mingw32/3.4.5/../../..
-L/mingw/lib/gcc/mingw32/3.4.5/../../.. ./SDRLibPlugin.o -lfftw3f-3
-lpthreadG
C2 -lusb -lUtils -lRingBuffer -lDsp -lozydrv -lSdrMain -lmingw32 -lgcc
-lmoldname -lmingwex -lmsvcrt -luser32 -lkernel32
 -ladvapi32 -lshell32 -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt
c:/MinGW/bin/../lib/gcc/mingw32/3.4.5/crtend.o
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x14):
undefined reference to `ringb_float_cre
ate'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x25):
undefined reference to `ringb_float_cre
ate'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x48):
undefined reference to `safealloc'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x6b):
undefined reference to `safealloc'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x8e):
undefined reference to `safealloc'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0xb1):
undefined reference to `safealloc'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0xd4):
undefined reference to `safealloc'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0xf7):
more undefined references to `safealloc
' follow
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x22f):
undefined reference to `ringb_float_wr
ite_space'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x257):
undefined reference to `ringb_float_wr
ite'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x288):
undefined reference to `ringb_float_re
ad_space'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x2cf):
undefined reference to `ringb_float_re
ad'
C:\LibSDR\src\c\OzyDriver\Release/libozydrv.a(ozy_usb.o):ozy_usb.c:(.text+0x2f1):
undefined reference to `_imp__pthread_
mutex_lock'

etc etc.



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