diff --git a/src/s_cabs.c b/src/s_cabs.c
index 01b7619..9fb7ee5 100644
--- a/src/s_cabs.c
+++ b/src/s_cabs.c
@@ -17,7 +17,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 double
 cabs(double complex z)
diff --git a/src/s_cabsf.c b/src/s_cabsf.c
index d4d22f2..61b5442 100644
--- a/src/s_cabsf.c
+++ b/src/s_cabsf.c
@@ -16,7 +16,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 float
 cabsf(float complex z)
diff --git a/src/s_cabsl.c b/src/s_cabsl.c
index 2e68ec0..2c4538e 100644
--- a/src/s_cabsl.c
+++ b/src/s_cabsl.c
@@ -17,7 +17,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 long double
 cabsl(long double complex z)
diff --git a/src/s_cacos.c b/src/s_cacos.c
index 35026ea..fc4d3c3 100644
--- a/src/s_cacos.c
+++ b/src/s_cacos.c
@@ -48,7 +48,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 double complex
 cacos(double complex z)
diff --git a/src/s_cacosf.c b/src/s_cacosf.c
index 885d411..fe49956 100644
--- a/src/s_cacosf.c
+++ b/src/s_cacosf.c
@@ -47,7 +47,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 float complex
 cacosf(float complex z)
diff --git a/src/s_cacosh.c b/src/s_cacosh.c
index 75af1a3..78f8e7d 100644
--- a/src/s_cacosh.c
+++ b/src/s_cacosh.c
@@ -44,7 +44,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 double complex
 cacosh(double complex z)
diff --git a/src/s_cacoshf.c b/src/s_cacoshf.c
index d81f784..5bbbd1a 100644
--- a/src/s_cacoshf.c
+++ b/src/s_cacoshf.c
@@ -43,7 +43,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 float complex
 cacoshf(float complex z)
diff --git a/src/s_cacoshl.c b/src/s_cacoshl.c
index 67a2362..0c6d7a5 100644
--- a/src/s_cacoshl.c
+++ b/src/s_cacoshl.c
@@ -44,7 +44,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 long double complex
 cacoshl(long double complex z)
diff --git a/src/s_cacosl.c b/src/s_cacosl.c
index e4d9459..d66fad1 100644
--- a/src/s_cacosl.c
+++ b/src/s_cacosl.c
@@ -48,7 +48,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 static const long double PIO2L = 1.570796326794896619231321691639751442098585L;
 
diff --git a/src/s_casin.c b/src/s_casin.c
index e615f76..9e9ab5b 100644
--- a/src/s_casin.c
+++ b/src/s_casin.c
@@ -51,7 +51,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 double complex
 casin(double complex z)
diff --git a/src/s_casinf.c b/src/s_casinf.c
index 39cbb48..2783acc 100644
--- a/src/s_casinf.c
+++ b/src/s_casinf.c
@@ -48,7 +48,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 float complex
 casinf(float complex z)
diff --git a/src/s_casinh.c b/src/s_casinh.c
index e78f709..031d1e3 100644
--- a/src/s_casinh.c
+++ b/src/s_casinh.c
@@ -44,7 +44,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 double complex
 casinh(double complex z)
diff --git a/src/s_casinhf.c b/src/s_casinhf.c
index 334c29b..952f7fe 100644
--- a/src/s_casinhf.c
+++ b/src/s_casinhf.c
@@ -43,7 +43,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 float complex
 casinhf(float complex z)
diff --git a/src/s_casinhl.c b/src/s_casinhl.c
index 7a8a31c..1738ea4 100644
--- a/src/s_casinhl.c
+++ b/src/s_casinhl.c
@@ -44,7 +44,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 long double complex
 casinhl(long double complex z)
diff --git a/src/s_casinl.c b/src/s_casinl.c
index 64e366b..2fa08ef 100644
--- a/src/s_casinl.c
+++ b/src/s_casinl.c
@@ -51,7 +51,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 #if	LDBL_MANT_DIG == 64
 static const long double MACHEPL= 5.42101086242752217003726400434970855712890625E-20L;
diff --git a/src/s_catan.c b/src/s_catan.c
index 87c624a..dc69b3a 100644
--- a/src/s_catan.c
+++ b/src/s_catan.c
@@ -64,7 +64,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 #define MAXNUM 1.0e308
 
diff --git a/src/s_catanf.c b/src/s_catanf.c
index efd9096..33c78c4 100644
--- a/src/s_catanf.c
+++ b/src/s_catanf.c
@@ -60,7 +60,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 #define MAXNUMF 1.0e38F
 
diff --git a/src/s_catanh.c b/src/s_catanh.c
index 16666fd..726ac50 100644
--- a/src/s_catanh.c
+++ b/src/s_catanh.c
@@ -44,7 +44,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 double complex
 catanh(double complex z)
diff --git a/src/s_catanhf.c b/src/s_catanhf.c
index 35fc8f7..866e6a9 100644
--- a/src/s_catanhf.c
+++ b/src/s_catanhf.c
@@ -43,7 +43,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 float complex
 catanhf(float complex z)
diff --git a/src/s_catanhl.c b/src/s_catanhl.c
index e2134f9..2a5fa16 100644
--- a/src/s_catanhl.c
+++ b/src/s_catanhl.c
@@ -44,7 +44,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 long double complex
 catanhl(long double complex z)
diff --git a/src/s_catanl.c b/src/s_catanl.c
index 1edc444..5a08728 100644
--- a/src/s_catanl.c
+++ b/src/s_catanl.c
@@ -65,7 +65,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 static const long double PIL = 3.141592653589793238462643383279502884197169L;
 static const long double DP1 = 3.14159265358979323829596852490908531763125L;
diff --git a/src/s_ccos.c b/src/s_ccos.c
index 06c6fc7..96731c7 100644
--- a/src/s_ccos.c
+++ b/src/s_ccos.c
@@ -51,7 +51,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 /* calculate cosh and sinh */
 
diff --git a/src/s_ccosf.c b/src/s_ccosf.c
index 1b83a57..6643d4c 100644
--- a/src/s_ccosf.c
+++ b/src/s_ccosf.c
@@ -49,7 +49,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 /* calculate cosh and sinh */
 
diff --git a/src/s_ccoshl.c b/src/s_ccoshl.c
index 1928aa9..265137d 100644
--- a/src/s_ccoshl.c
+++ b/src/s_ccoshl.c
@@ -44,7 +44,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 long double complex
 ccoshl(long double complex z)
diff --git a/src/s_ccosl.c b/src/s_ccosl.c
index 74148e2..b57fd9e 100644
--- a/src/s_ccosl.c
+++ b/src/s_ccosl.c
@@ -51,7 +51,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 static void
 cchshl(long double x, long double *c, long double *s)
diff --git a/src/s_cexpl.c b/src/s_cexpl.c
index d1f6376..0391322 100644
--- a/src/s_cexpl.c
+++ b/src/s_cexpl.c
@@ -55,7 +55,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 long double complex
 cexpl(long double complex z)
diff --git a/src/s_clog.c b/src/s_clog.c
index 7b17efa..a862cc9 100644
--- a/src/s_clog.c
+++ b/src/s_clog.c
@@ -56,7 +56,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 double complex
 clog(double complex z)
diff --git a/src/s_clogf.c b/src/s_clogf.c
index 7596927..3348fcb 100644
--- a/src/s_clogf.c
+++ b/src/s_clogf.c
@@ -54,7 +54,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 float complex
 clogf(float complex z)
diff --git a/src/s_clogl.c b/src/s_clogl.c
index 9b115ca..0618de3 100644
--- a/src/s_clogl.c
+++ b/src/s_clogl.c
@@ -56,7 +56,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 long double complex
 clogl(long double complex z)
diff --git a/src/s_csin.c b/src/s_csin.c
index 3d2f2c8..d176c25 100644
--- a/src/s_csin.c
+++ b/src/s_csin.c
@@ -53,7 +53,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 /* calculate cosh and sinh */
 
diff --git a/src/s_csinf.c b/src/s_csinf.c
index 2e38c8e..f0023b5 100644
--- a/src/s_csinf.c
+++ b/src/s_csinf.c
@@ -50,7 +50,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 /* calculate cosh and sinh */
 
diff --git a/src/s_csinhl.c b/src/s_csinhl.c
index 9f2be15..4c85d82 100644
--- a/src/s_csinhl.c
+++ b/src/s_csinhl.c
@@ -43,7 +43,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 long double complex
 csinhl(long double complex z)
diff --git a/src/s_csinl.c b/src/s_csinl.c
index 100affa..02a8746 100644
--- a/src/s_csinl.c
+++ b/src/s_csinl.c
@@ -53,7 +53,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 static void
 cchshl(long double x, long double *c, long double *s)
diff --git a/src/s_ctan.c b/src/s_ctan.c
index 0612d20..c23d8d0 100644
--- a/src/s_ctan.c
+++ b/src/s_ctan.c
@@ -58,7 +58,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 #define MACHEP 1.1e-16
 #define MAXNUM 1.0e308
diff --git a/src/s_ctanf.c b/src/s_ctanf.c
index c4eee6a..9771372 100644
--- a/src/s_ctanf.c
+++ b/src/s_ctanf.c
@@ -54,7 +54,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 #define MACHEPF 3.0e-8
 #define MAXNUMF 1.0e38f
diff --git a/src/s_ctanhl.c b/src/s_ctanhl.c
index c3dd9cf..0328bc8 100644
--- a/src/s_ctanhl.c
+++ b/src/s_ctanhl.c
@@ -44,7 +44,7 @@
  */
 
 #include <complex.h>
-#include <math.h>
+#include "openlibm.h"
 
 long double complex
 ctanhl(long double complex z)
diff --git a/src/s_ctanl.c b/src/s_ctanl.c
index 7c08ac5..c35b69f 100644
--- a/src/s_ctanl.c
+++ b/src/s_ctanl.c
@@ -58,7 +58,7 @@
 
 #include <complex.h>
 #include <float.h>
-#include <math.h>
+#include "openlibm.h"
 
 #if	LDBL_MANT_DIG == 64
 static const long double MACHEPL= 5.42101086242752217003726400434970855712890625E-20L;