mingw "too many sections" bug while compiling huge header file in Qt

Question

I was trying to compile exprtk.hpp file (https://exprtk.codeplex.com/) with mingw32(491_32) on Qt (win7). During compilation, I give this error message:

debug\main.o:-1: error: too many sections (35325)

I've been noticed that the exprtk.hpp file is huge (>32000 lines). I've been trying optimization flags on compiler but It didn't help eighter. I'll be appreciated if somebody help me... Regards,

Answer 1

You can by adding the compilation flags -flto -Wl,-allow-multiple-definition and you can add -fuse-linker-plugin

-Wa,-mbig-obj do not work on x86/32bits architecture (only x64)