On Mon, 2019-12-16 at 17:43 +0100, Georg-Johann Lay wrote: > Am 16.12.19 um 17:40 schrieb Georg-Johann Lay: > Patch 1/3 is the GCC changes: Documentation and new avr-specific > configure options: > > --with-libf7 selects to which level double support from libf7 is added > to libgcc. > > --with-double-comparison select what FLOAT_LIB_COMPARE_RETURNS_BOOL > returns. > > Johann > > gcc/ > * config.gcc (tm_defines) [target=avr]: Support --with-libf7, > --with-double-comparison. > * doc/install.texi: Document them. > * config/avr/avr-c.c (avr_cpu_cpp_builtins) > <WITH_LIBF7_LIBGCC, WITH_LIBF7_MATH, WITH_LIBF7_MATH_SYMBOLS> > <WITH_DOUBLE_COMPARISON>: New built-in defines. > * doc/invoke.texi (AVR Built-in Macros): Document them. > * config/avr/avr-protos.h (avr_float_lib_compare_returns_bool): New. > * config/avr/avr.c (avr_float_lib_compare_returns_bool): New function. > * config/avr/avr.h (FLOAT_LIB_COMPARE_RETURNS_BOOL): New macro. I'd suggest "--with-libf77" rather than "--with-libf7".
jeff
