$ make convttf
cc -O -g -W -Wall -Wshadow -pedantic -lm -std=c99 -O2 -Wall -g convttf.c -o convttf \
                `freetype-config --libs` `freetype-config --cflags`
convttf.c: In function `convttf':
convttf.c:781: warning: declaration of 'error' shadows a previous local
convttf.c:602: warning: shadowed declaration is here
convttf.c:816: warning: declaration of 'src' shadows a previous local
convttf.c:771: warning: shadowed declaration is here
convttf.c:888:16: warning: non-ISO-standard escape sequence, '\e'
convttf.c:943:12: warning: non-ISO-standard escape sequence, '\e'