warning: multi-line comment

[ArbolOne]

when compiling my app I get a warning that reads:
warning: multi-line comment
Is there a way to remove this warning?
MSWin7
MinGW-64
Using built-in specs.
COLLECT_GCC=x86_64-w64-mingw32-gcc.exe
COLLECT_LTO_WRAPPER=d:/mingw64/bin/../libexec/gcc/x86_64-w64-mingw32/4.5.4/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../../../build/gcc/src/configure --target=x86_64-w64-mingw32 --prefix=/c/bb/vista64-mingw32/mingw-x86-x86_64/build/build/root --with-sysroot=/c/bb/vista64-mingw32/mingw-x86-x86_64/build/build/root --enable-languages=all,obj-c++ --enable-fully-dynamic-string --disable-multilib
Thread model: win32
gcc version 4.5.4 20110715 (prerelease) (GCC)

[jarod42]

Unrelated to C::B

see gcc manual or fix your warning (avoid using \ at the end of the comment).