diff --git a/GNUmakefile b/GNUmakefile
index f940174..1f5cf3e 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -8,7 +8,7 @@ USE_FREETYPE2 = 1
 
 CC = $(GCC)gcc
 
-CFLAGS = -Wall -Wextra -Wno-implicit-fallthrough -Wno-sign-compare -Iinclude -Iexternal/fdlibm
+CFLAGS = -Wall -Wextra -Wno-implicit-fallthrough -Wno-sign-compare -Iinclude
 LDFLAGS =
 LIBS =
 
diff --git a/mk/fdlibm.mk b/mk/fdlibm.mk
index 7c62255..576b34f 100644
--- a/mk/fdlibm.mk
+++ b/mk/fdlibm.mk
@@ -1,2 +1,3 @@
 # $Id$
 L_OBJS += external/fdlibm/e_acos.o external/fdlibm/e_acosh.o external/fdlibm/e_asin.o external/fdlibm/e_atan2.o external/fdlibm/e_atanh.o external/fdlibm/e_cosh.o external/fdlibm/e_exp.o external/fdlibm/e_fmod.o external/fdlibm/e_gamma.o external/fdlibm/e_gamma_r.o external/fdlibm/e_hypot.o external/fdlibm/e_j0.o external/fdlibm/e_j1.o external/fdlibm/e_jn.o external/fdlibm/e_lgamma.o external/fdlibm/e_lgamma_r.o external/fdlibm/e_log.o external/fdlibm/e_log10.o external/fdlibm/e_pow.o external/fdlibm/e_rem_pio2.o external/fdlibm/e_remainder.o external/fdlibm/e_scalb.o external/fdlibm/e_sinh.o external/fdlibm/e_sqrt.o external/fdlibm/k_cos.o external/fdlibm/k_rem_pio2.o external/fdlibm/k_sin.o external/fdlibm/k_tan.o external/fdlibm/s_asinh.o external/fdlibm/s_atan.o external/fdlibm/s_cbrt.o external/fdlibm/s_ceil.o external/fdlibm/s_copysign.o external/fdlibm/s_cos.o external/fdlibm/s_erf.o external/fdlibm/s_expm1.o external/fdlibm/s_fabs.o external/fdlibm/s_finite.o external/fdlibm/s_floor.o external/fdlibm/s_frexp.o external/fdlibm/s_ilogb.o external/fdlibm/s_isnan.o external/fdlibm/s_ldexp.o external/fdlibm/s_log1p.o external/fdlibm/s_logb.o external/fdlibm/s_modf.o external/fdlibm/s_nextafter.o external/fdlibm/s_rint.o external/fdlibm/s_scalbn.o external/fdlibm/s_signgam.o external/fdlibm/s_significand.o external/fdlibm/s_sin.o external/fdlibm/s_tan.o external/fdlibm/s_tanh.o external/fdlibm/w_acos.o external/fdlibm/w_acosh.o external/fdlibm/w_asin.o external/fdlibm/w_atan2.o external/fdlibm/w_atanh.o external/fdlibm/w_cosh.o external/fdlibm/w_exp.o external/fdlibm/w_fmod.o external/fdlibm/w_gamma.o external/fdlibm/w_gamma_r.o external/fdlibm/w_hypot.o external/fdlibm/w_j0.o external/fdlibm/w_j1.o external/fdlibm/w_jn.o external/fdlibm/w_lgamma.o external/fdlibm/w_lgamma_r.o external/fdlibm/w_log.o external/fdlibm/w_log10.o external/fdlibm/w_pow.o external/fdlibm/w_remainder.o external/fdlibm/w_scalb.o external/fdlibm/w_sinh.o external/fdlibm/w_sqrt.o 
+L_OBJS += -Iexternal/fdlibm