Handle strchr_P alias for AVR code compat

This function is used in some projects (Marlin) and require to be defined
rogerclarkmelbourne · Jul 28, 2019 · 9c369ac · 9c369ac
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commit 9c369ac
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diff --git a/STM32F1/cores/maple/avr/pgmspace.h b/STM32F1/cores/maple/avr/pgmspace.h
@@ -22,6 +22,7 @@ typedef uint32_t prog_uint32_t;
 #define memcpy_P(dest, src, num) memcpy((dest), (src), (num))
 #define strcpy_P(dest, src) strcpy((dest), (src))
 #define strcat_P(dest, src) strcat((dest), (src))
+#define strchr_P(s, c) strchr((s), (c))
 #define strcmp_P(a, b) strcmp((a), (b))
 #define strstr_P(a, b) strstr((a), (b))
 #define strlen_P(a) strlen((a))

diff --git a/STM32F4/cores/maple/avr/pgmspace.h b/STM32F4/cores/maple/avr/pgmspace.h
@@ -22,6 +22,7 @@ typedef uint32_t prog_uint32_t;
 #define memcpy_P(dest, src, num) memcpy((dest), (src), (num))
 #define strcpy_P(dest, src) strcpy((dest), (src))
 #define strcat_P(dest, src) strcat((dest), (src))
+#define strchr_P(s, c) strchr((s), (c))
 #define strcmp_P(a, b) strcmp((a), (b))
 #define strstr_P(a, b) strstr((a), (b))
 #define strlen_P(a) strlen((a))