编译 出现这些问题，link不到libqca ，但是我在qca的目录下有个lib文件夹，里面有两个.a的文件叫libqca2.a和libqcad2.a ,这两个文件需要做什么么?
E:\Qt\libs\qca-2.0.1>mingw32-make
mingw32-make -f Makefile.Debug
mingw32-make[1]: Entering directory `E:/Qt/libs/qca-2.0.1'
g++ -enable-stdcall-fixup -Wl,-enable-auto-import -Wl,-enable-runtime-pseudo-rel
oc -mthreads -Wl -Wl,-subsystem,windows -o debug\crypto.exe -L"e:\Qt\2010.02.1
\qt\lib" -lmingw32 -lqtmaind -LE:\Qt\libs\qca-2.0.1\lib -lqcad -lQtGuid4 -lQtCor
ed4
e:/qt/2010.02.1/mingw/bin/../lib/gcc/mingw32/4.4.0/../../../../mingw32/bin/ld.ex
e: cannot find -lqcad
collect2: ld returned 1 exit status
mingw32-make[1]: *** [debug\crypto.exe] Error 1
mingw32-make[1]: Leaving directory `E:/Qt/libs/qca-2.0.1'
mingw32-make: *** [debug] Error 2
