如何解决'collect2：ld返回1退出状态'？

Question

when I build my source code in linux I got an error like

qstring.cpp:(.text+0x2c01): undefined reference to `terminate(void)'
collect2: ld returned 1 exit status

How to solve this problem?

Answer 1

terminate is defined in the C++ standard library, so make sure that you're linking that in. Assuming you're using gcc to compile, you should use the g++ executable to compile your source code, not the gcc executable:

g++ source.cc -o output

When executed as g++ , the linker automatically links in the C++ standard library (libstdc++) for you. If you instead execute gcc as plain gcc , or you directly invoke the linker ld , then you need to add -lstdc++ yourself to link in the library, eg:

gcc source.cc -o output -lstdc++  # Compile directly from source
ld source1.o source2.o -o output -lstdc++  # Link together object files

Answer 2

You need to find out which object file or library terminate lives in and include it in your compile/link command.

If it's in an object or source file, just give it to your gcc (assuming you're actually using gcc , if not, the method will probably be similar) command as per normal. If it's in a library, you should look into the -L (library path) and -l (library name) options.

Answer 3

void terminate(void) { raise(9); }