[Vm-dev] Problems with building a freetype plugin on linux

gcc -g -O2 -fomit-frame-pointer -DLSB_FIRST=1 -DHAVE_CONFIG_H -I/home/sig/squeak/src/build -I/home/sig/squeak/src/platforms/unix/vm -I/home/sig/squeak/src/platforms/Cross/vm -I/home/sig/squeak/src/src/vm -c /home/sig/squeak/src/src/plugins/FT2Plugin/FT2Plugin.c -fPIC -DPIC -DPIC -o FT2Plugin.o

In file included from /home/sig/squeak/src/src/plugins/FT2Plugin/FT2Plugin.c:30: /usr/include/ft2build.h:56:38: error: freetype/config/ftheader.h: No such file or directory

and ftheader.h contents says:

/* `<prefix>/include/freetype2' must be in your current inclusion path */ #include <freetype/config/ftheader.h>

So, it looks like a gcc flags missing the include option:

-I/use/include/freetype2