dlltool --def Constants.def --output-exp dll.exp
g++ -o ..\blib\arch\auto\Win32\GUI\Constants\Constants.dll -Wl,--base-file -Wl,dll.base -mdll -s -L"C:\strawberry\perl\lib\CORE" -L"C:\strawberry\c\li
b" Constants.o Constants.res -Wl,--image-base,0x370e0000  C:\strawberry\perl\lib\CORE\libperl510.a -lmoldname -lkernel32 -luser32 -lgdi32 -lwinspool -
lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm -lversion -lodbc32 -lodbccp32 dll.exp
dll.exp: file not recognized: File format not recognized
collect2: ld returned 1 exit status
dmake:  Error code 129, while making '..\blib\arch\auto\Win32\GUI\Constants\Constants.dll'
dmake:  Error code 255, while making 'subdirs'