When building Linux examples, they fail.

[mwedmark]

It seems that after installing SDL and trying to build, some examples fails to build with missing functions error (see below).
Should the rest of the examples still work if started manually via SSH?

-snip-
Building for PiTrex under Linux on Pi0
gcc -W -Wall -s -Ofast -DSETTINGS_DIR=""/opt/pitrex/share/vmmenu/"" -DSND_DIR=""/opt/pitrex/share/vmmenu/VMMsnd"" -I../pitrex/ -DPITREX -DPIZERO -DRPI0 -o vmmenu sdl2-config --libs -lSDL2 -lSDL2_mixer -lm obj/vmmenu.o obj/graphics.o obj/window.o obj/timer.o obj/iniparser.o obj/dictionary.o obj/LinuxVMM.o obj/VMM-SDL.o obj/vchars.o obj/gamelist.o obj/editlist.o
../pitrex/pitrex/build.raspbian/bcm2835.o
../pitrex/pitrex/build.raspbian/pitrexio-gpio.o
../pitrex/vectrex/build.raspbian/vectrexInterface.o
../pitrex/vectrex/build.raspbian/osWrapper.o
../pitrex/vectrex/build.raspbian/baremetalUtil.o
/usr/bin/ld: obj/vmmenu.o: in function PrintString.constprop.1': vmmenu.c:(.text+0x1c4): undefined reference to sincos'
/usr/bin/ld: obj/vmmenu.o: in function PrintString.constprop.2': vmmenu.c:(.text+0x3e0): undefined reference to sincos'
/usr/bin/ld: obj/vmmenu.o: in function PrintString': vmmenu.c:(.text+0x608): undefined reference to sincos'
/usr/bin/ld: vmmenu.c:(.text+0x6d0): undefined reference to sincos' /usr/bin/ld: obj/vmmenu.o: in function fnrotate':
vmmenu.c:(.text+0x814): undefined reference to sincos' /usr/bin/ld: obj/vmmenu.o:vmmenu.c:(.text+0x8d8): more undefined references to sincos' follow
/usr/bin/ld: obj/vmmenu.o: in function EditGamesList': vmmenu.c:(.text+0x4960): undefined reference to sin'
/usr/bin/ld: obj/vmmenu.o: in function main': vmmenu.c:(.text.startup+0xab4): undefined reference to cos'
/usr/bin/ld: obj/VMM-SDL.o: in function InitialiseSDL': VMM-SDL.c:(.text+0xb8): undefined reference to SDL_Init'
/usr/bin/ld: VMM-SDL.c:(.text+0x100): undefined reference to `SDL_CreateWindow'
-snip-

[gtoal]

I don't currently have a clean copy of what's on github installed on a pi but give me a little time to recreate the environment and I'll check this out. From a quick glance, I have a vague recollection that '-lm' has to be the last item on the command line.