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t-softfp32 revision 1.1 
      1  1.1  mrg ABI_SINGLE:=$(findstring __riscv_float_abi_single,$(shell $(gcc_compile_bare) -dM -E - </dev/null))
      2  1.1  mrg ABI_DOUBLE:=$(findstring __riscv_float_abi_double,$(shell $(gcc_compile_bare) -dM -E - </dev/null))
      3  1.1  mrg ABI_QUAD:=$(findstring __riscv_float_abi_quad,$(shell $(gcc_compile_bare) -dM -E - </dev/null))
      4  1.1  mrg 
      5  1.1  mrg softfp_int_modes := si di
      6  1.1  mrg softfp_exclude_libgcc2 := n
      7  1.1  mrg 
      8  1.1  mrg ifndef ABI_QUAD
      9  1.1  mrg ifdef ABI_DOUBLE
     10  1.1  mrg 
     11  1.1  mrg softfp_float_modes := tf
     12  1.1  mrg softfp_extensions := sftf dftf
     13  1.1  mrg softfp_truncations := tfsf tfdf
     14  1.1  mrg 
     15  1.1  mrg else
     16  1.1  mrg 
     17  1.1  mrg softfp_float_modes := df tf
     18  1.1  mrg softfp_extensions := sfdf sftf dftf
     19  1.1  mrg softfp_truncations := dfsf tfsf tfdf
     20  1.1  mrg 
     21  1.1  mrg ifndef ABI_SINGLE
     22  1.1  mrg softfp_float_modes += sf
     23  1.1  mrg endif
     24  1.1  mrg 
     25  1.1  mrg endif
     26  1.1  mrg endif
     27