gcc/libgcc/config/avr/libf7/t-libf7-math-symbols

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# Triggered by --with-libf7=math-symbols
#
# We have at least one module in libgcc that depends on __SIZEOF_DOUBLE__
# or __SIZEOF_LONG_DOUBLE__ which means that t-avrlibc must not copy
# double32/64 or long-double32/64 variants from the vanilla one.
# This occurs when some module(s) define(s) weak aliases for functions
# that usually live in libm.
WITH_LIBF7_MATH_SYMBOLS = 1
F7_FLAGS += -DWITH_LIBF7_MATH_SYMBOLS