"Naveen H. S" <Naveen.S@xxxxxxxxxxxxxxx> writes: > We are building the linux and windows toolchain configured with > "--enable-lto" option. > There were no problems while building linux toolchain. > > However, we are facing the following error while building > windows toolchain on mingw environment. > > ===================== Error Encountered============================ > checking libelf.h usability... no > checking libelf.h presence... no > checking for libelf.h... no > checking gelf.h usability... no > checking gelf.h presence... no > checking for gelf.h... no > checking libelf/libelf.h usability... no > checking libelf/libelf.h presence... no > checking for libelf/libelf.h... no > checking libelf/gelf.h usability... no > checking libelf/gelf.h presence... no > checking for libelf/gelf.h... no > configure: error: LTO support requires libelf.h or libelf/libelf.h. > ===================== Error Encountered============================ > > We could not get any useful information to solve the above problem. > Can anyone please help us to solve the issue? I assume you are using gcc 4.5. This has been fixed in gcc mainline and the fix will be in the upcoming gcc 4.6 release. I don't think LTO works on Windows in gcc 4.5. Ian
