undefined reference to `TGLGetMaximumContextVersion'

[tdolphin-org]

MorphOS 3.18, SDL 2.30.7

/System/Development/gg/bin/../lib/gcc-lib/ppc-morphos/9.5.0/../../../../ppc-morphos/bin/ld: /usr/local/lib/libSDL2.a(sdl-startup.o): in function __CSTP_init_SDL2Base': sdl-startup.c:(.text+0x672): undefined reference to TGLGetMaximumContextVersion'
/System/Development/gg/bin/../lib/gcc-lib/ppc-morphos/9.5.0/../../../../ppc-morphos/bin/ld: sdl-startup.c:(.text+0x682): undefined reference to `TGLGetMaximumContextVersion'

for previous version 2.30.5 is ok