U8g2_for_Adafruit_GFX conflicts with U8g2

[glenlau228]

1909 | extern const uint8_t u8g2_font_px437wyse700a_mn[] U8G2_FONT_SECTION("u8g2_font_px437wyse700a_mn");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2\src/clib/u8g2.h:3961:22: error: conflicting declaration of 'const uint8_t u8g2_font_px437wyse700b_tf []' with 'C' linkage
3961 | extern const uint8_t u8g2_font_px437wyse700b_tf[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_tf");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2_for_Adafruit_GFX\src/U8g2_for_Adafruit_GFX.h:1910:22: note: previous declaration with 'C++' linkage
1910 | extern const uint8_t u8g2_font_px437wyse700b_tf[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_tf");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2\src/clib/u8g2.h:3962:22: error: conflicting declaration of 'const uint8_t u8g2_font_px437wyse700b_tr []' with 'C' linkage
3962 | extern const uint8_t u8g2_font_px437wyse700b_tr[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_tr");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2_for_Adafruit_GFX\src/U8g2_for_Adafruit_GFX.h:1911:22: note: previous declaration with 'C++' linkage
1911 | extern const uint8_t u8g2_font_px437wyse700b_tr[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_tr");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2\src/clib/u8g2.h:3963:22: error: conflicting declaration of 'const uint8_t u8g2_font_px437wyse700b_tn []' with 'C' linkage
3963 | extern const uint8_t u8g2_font_px437wyse700b_tn[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_tn");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2_for_Adafruit_GFX\src/U8g2_for_Adafruit_GFX.h:1912:22: note: previous declaration with 'C++' linkage
1912 | extern const uint8_t u8g2_font_px437wyse700b_tn[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_tn");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2\src/clib/u8g2.h:3964:22: error: conflicting declaration of 'const uint8_t u8g2_font_px437wyse700b_mf []' with 'C' linkage
3964 | extern const uint8_t u8g2_font_px437wyse700b_mf[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_mf");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2_for_Adafruit_GFX\src/U8g2_for_Adafruit_GFX.h:1913:22: note: previous declaration with 'C++' linkage
1913 | extern const uint8_t u8g2_font_px437wyse700b_mf[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_mf");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2\src/clib/u8g2.h:3965:22: error: conflicting declaration of 'const uint8_t u8g2_font_px437wyse700b_mr []' with 'C' linkage
3965 | extern const uint8_t u8g2_font_px437wyse700b_mr[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_mr");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2_for_Adafruit_GFX\src/U8g2_for_Adafruit_GFX.h:1914:22: note: previous declaration with 'C++' linkage
1914 | extern const uint8_t u8g2_font_px437wyse700b_mr[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_mr");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2\src/clib/u8g2.h:3966:22: error: conflicting declaration of 'const uint8_t u8g2_font_px437wyse700b_mn []' with 'C' linkage
3966 | extern const uint8_t u8g2_font_px437wyse700b_mn[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_mn");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
d:\Arduino\libraries\U8g2_for_Adafruit_GFX\src/U8g2_for_Adafruit_GFX.h:1915:22: note: previous declaration with 'C++' linkage
1915 | extern const uint8_t u8g2_font_px437wyse700b_mn[] U8G2_FONT_SECTION("u8g2_font_px437wyse700b_mn");
| ^~~~~~~~~~~~~~~~~~~~~~~~~~

[olikraus]

yes, but why would you want to use these two libs together?

[glenlau228]

Because I want to drive an ink screen and an LED screen at the same time, the ink screen uses the GxEPD2 driver, and I need to use U8g2_for_Adafruit_GFX to customize the font, and the LED screen needs to use the U8g2 driver. Is there any other way?

[olikraus]

hmm It should be possible to just remove the font declarations from U8g2_for_Adafruit_GFX .h file, because fonts are exactly the same in U8g2_for_Adafruit_GFX and u8g2