我試圖使用別人的Makefile來編譯一個非常簡單的C++庫。生成文件如下:使用g ++鏈接失敗搜索-lstdC++
JNIFLAGS=-O2 -pthread -I/usr/lib/jvm/java-6-sun/include -I/usr/lib/jvm/java-6-sun/include/linux
all:
rm -f ../dist/libUtils.so
g++ $(JNIFLAGS) -c -m32 -o com_markets_utils_dates_NativeTime.o com_markets_utils_dates_NativeTime.cpp
g++ $(JNIFLAGS) -c -m32 -o DateUtil.o DateUtil.cpp
g++ -pthread -m32 -shared -fPIC -o ../dist/libUtils.so DateUtil.cpp
g++ -pthread -m32 -shared -fPIC -o ../dist/libNativeTime.so DateUtil.o com_markets_utils_dates_NativeTime.o
編譯沒有問題,但鏈接器抱怨:
...
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.4.1/libstdc++.so when searching for -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.4.1/libstdc++.a when searching for -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.4.1/libstdc++.so when searching for -lstdc++
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.4.1/libstdc++.a when searching for -lstdc++
/usr/bin/ld: cannot find -lstdc++
collect2: ld returned 1 exit status
make: *** [all] Error 1
僅供參考,我在Ubuntu 9.10 64位。
您正在使用哪個版本的g ++ - 做'g ++ --version'來找出答案。 – 2010-01-18 12:54:01
$ g ++ --version g ++(Ubuntu 4.4.1-4ubuntu8)4.4.1 – jwoolard 2010-01-18 13:19:51