main.cpp内容
#include <graphics.h>
int main(int argc, char** argv)
{
initwindow(200,400);
return 0;
}
命令行
E:\C++\Test2>g++ -lgraphics -lgdi32 -limm32 -lmsimg32 -lole32 -loleaut32 -lwinmm
-luuid -mwindows main.cpp
C:\Users\PC\AppData\Local\Temp\ccvXmtFv.o:main.cpp:(.text+0x46): undefined refer
ence to `initwindow'
collect2.exe: error: ld returned 1 exit status
E:\C++\Test2>gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=D:/CodeBlocks/TDM-GCC/bin/../libexec/gcc/mingw32/4.9.2/lto-w
rapper.exe
Target: mingw32
Configured with: ../../../src/gcc-4.9.2/configure --build=mingw32 --enable-langu
ages=ada,c,c++,fortran,lto,objc,obj-c++ --enable-libgomp --enable-lto --enable-g
raphite --enable-libstdcxx-debug --enable-threads=posix --enable-version-specifi
c-runtime-libs --enable-fully-dynamic-string --enable-libstdcxx-threads --enable
-libstdcxx-time --with-gnu-ld --disable-werror --disable-nls --disable-win32-reg
istry --disable-symvers --enable-cxx-flags='-fno-function-sections -fno-data-sec
tions -DWINPTHREAD_STATIC' --prefix=/mingw32tdm --with-local-prefix=/mingw32tdm
--with-pkgversion=tdm-1 --enable-sjlj-exceptions --with-bugurl=http://tdm-gcc.td
ragon.net/bugs
Thread model: posix
gcc version 4.9.2 (tdm-1)

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