Fixed error from fontconvert.c when compiling example sketch of adafruit OLED display #183
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Issue:
When compiling the example sketch for adafruit OLED display, the sketch refers to Adafruit_GFX and consequently to fontconvert.c
This file includes a header file named ft2build.h, which many of the compilers fail to find, resulting in compilation error.
Check the discussion on this issue: #88
Fix:
Simply adding two lines at the beginning and at the end solves the problem: 4a2757c