Switch to libgcc entierly when using gcc as a toolchain

liba/Makefile

@@ -138,58 +138,4 @@ tests += $(addprefix liba/test/, \
 # In practice we're always using liba on such a target.
 objs += $(addprefix liba/src/aeabi-rt/, \
   atexit.o \
-  double.o \
-  llsl.o \
-  llsr.o \
-  long.o \
-  memclr.o \
-  memcpy.o \
-)
-
-liba/src/external/softfloat/src/%.o: CFLAGS += -Iliba/src/external/softfloat/include -Iliba/src/external/softfloat/src/8086 -Iliba/src/external/softfloat/port
-liba/src/external/softfloat/src/s_roundPackToF64.o: CFLAGS += -w
-liba/src/external/softfloat/src/s_roundPackToF32.o: CFLAGS += -w
-# s_roundPackToF64 and s_roundPackToF32 are throwing warnings
-
-objs += $(addprefix liba/src/external/softfloat/src/, \
-  8086/s_commonNaNToF32UI.o \
-  8086/s_commonNaNToF64UI.o \
-  8086/s_f32UIToCommonNaN.o \
-  8086/s_f64UIToCommonNaN.o \
-  8086/s_propagateNaNF64UI.o \
-  8086/softfloat_raiseFlags.o \
-  f32_to_f64.o \
-  f32_to_i64_r_minMag.o\
-  f64_add.o \
-  f64_div.o \
-  f64_eq.o \
-  f64_le.o \
-  f64_lt.o \
-  f64_mul.o \
-  f64_sub.o \
-  f64_to_i32_r_minMag.o \
-  f64_to_i64_r_minMag.o \
-  f64_to_f32.o \
-  i32_to_f64.o \
-  i64_to_f32.o \
-  i64_to_f64.o \
-  s_addMagsF64.o \
-  s_approxRecip32_1.o \
-  s_approxRecip_1Ks.o \
-  s_countLeadingZeros32.o \
-  s_countLeadingZeros64.o \
-  s_countLeadingZeros8.o \
-  s_mul64To128M.o \
-  s_normRoundPackToF64.o \
-  s_normSubnormalF32Sig.o \
-  s_normSubnormalF64Sig.o \
-  s_roundPackToF32.o \
-  s_roundPackToF64.o \
-  s_shiftRightJam32.o \
-  s_shiftRightJam64.o \
-  s_shortShiftRightJam64.o \
-  s_subMagsF64.o \
-  softfloat_state.o \
-  ui32_to_f64.o \
-  ui64_to_f64.o \
 )

liba/Makefile.libgcc

@@ -1,139 +0,0 @@
-SFLAGS += -Iliba/include
-
-liba/src/external/sqlite/mem5.o: CFLAGS += -w
-
-objs += $(addprefix liba/src/, \
-  armv7m/setjmp.o \
-  armv7m/longjmp.o \
-  assert.o \
-  bzero.o \
-  ctype.o \
-  errno.o \
-  fpclassify.o \
-  fpclassifyf.o \
-  ieee754.o \
-  malloc.o \
-  memcmp.o \
-  memcpy.o \
-  memmove.o \
-  memset.o \
-  nearbyint.o \
-  nearbyintf.o \
-  strcmp.o \
-  strchr.o \
-  strlcpy.o \
-  strlen.o \
-  external/sqlite/mem5.o \
-)
-
-objs += $(addprefix liba/src/external/openbsd/, \
-  b_exp__D.o \
-  b_log__D.o \
-  b_tgamma.o \
-  e_acosf.o \
-  e_acoshf.o \
-  e_asinf.o \
-  e_atanhf.o \
-  e_atan2.o \
-  e_atan2f.o \
-  e_coshf.o \
-  e_expf.o \
-  e_fmod.o \
-  e_fmodf.o \
-  e_lgammaf_r.o \
-  e_log10f.o \
-  e_log2.o \
-  e_logf.o \
-  e_powf.o \
-  e_rem_pio2f.o \
-  e_scalb.o \
-  e_sinhf.o \
-  e_sqrtf.o \
-  k_cosf.o \
-  k_rem_pio2f.o \
-  k_sinf.o \
-  k_tanf.o \
-  s_asinhf.o\
-  s_atanf.o \
-  s_ceilf.o \
-  s_copysignf.o \
-  s_cosf.o \
-  s_erf.o \
-  s_expm1f.o\
-  s_fabsf.o \
-  s_floorf.o \
-  s_frexpf.o \
-  s_frexp.o \
-  s_log1pf.o \
-  s_logb.o \
-  s_modf.o \
-  s_modff.o \
-  s_rint.o \
-  s_roundf.o \
-  s_scalbnf.o \
-  s_signgam.o \
-  s_sinf.o \
-  s_tanf.o \
-  s_tanhf.o \
-  s_trunc.o \
-  s_truncf.o \
-  w_lgammaf.o \
-)
-
-objs += $(addprefix liba/src/external/openbsd/, \
-  e_acos.o \
-  e_acosh.o \
-  e_asin.o \
-  e_atanh.o \
-  e_cosh.o \
-  e_exp.o \
-  e_lgamma_r.o \
-  e_log.o \
-  e_log10.o \
-  e_pow.o \
-  e_rem_pio2.o \
-  e_sinh.o \
-  e_sqrt.o \
-  k_cos.o \
-  k_rem_pio2.o \
-  k_sin.o \
-  k_tan.o \
-  s_asinh.o \
-  s_atan.o \
-  s_ceil.o \
-  s_copysign.o \
-  s_cos.o \
-  s_expm1.o \
-  s_fabs.o \
-  s_floor.o \
-  s_log1p.o \
-  s_round.o \
-  s_scalbn.o \
-  s_sin.o \
-  s_tan.o \
-  s_tanh.o \
-  w_lgamma.o \
-)
-
-liba/src/external/openbsd/%.o: SFLAGS := -Iliba/src/external/openbsd/include $(SFLAGS)
-liba/src/external/openbsd/%.o: CFLAGS += -w
-
-tests += $(addprefix liba/test/, \
-  aeabi.c \
-  double.c \
-  ieee754.c \
-  long.c \
-  math.c \
-  setjmp.c \
-  stddef.c \
-  stdint.c \
-  strlcpy.c \
-)
-
-# The use of aeabi-rt could be made conditional to an AEABI target.
-# In practice we're always using liba on such a target.
-objs += $(addprefix liba/src/aeabi-rt/, \
-  atexit.o \
-)
-
-LDFLAGS+=-lgcc