Re: [arch-general] makepkg breaks the build when building binaries manually doesn't

makepkg sets a couple environment variables that are listed in /etc/makepkg.conf. By default this includes LDFLAGS="-Wl,--as-needed" which I believe normally produces these kinds of errors. You'll have to make sure that the gcc command that is run has all necessary -lfoo arguments at the end of the command line (after the output file iirc). So `gcc foo.c -o foo -lbar -lblub`

I haven't dealt with those in months so this information may not be entirely correct.

In fact, it is the way to investigate. I am comparing the two generated libguestfs/src/Makefile, and I can find some diff in flags.