move nonstd/tgmath.h to ./_tgmath.h

62 files changed, 61 insertions, 61 deletions

diff --git a/src/nonstd/tgmath.h b/src/math/_tgmath.h
index 01533baa..01533baa 100644
--- a/src/nonstd/tgmath.h
+++ b/src/math/_tgmath.h
diff --git a/src/math/acos.c b/src/math/acos.c
index a610fe2e..d1933fbd 100644
--- a/src/math/acos.c
+++ b/src/math/acos.c
@@ -1,7 +1,7 @@
 # define TGSOURCE "std/9899-1990/math/acos.c"
 #include <math.h>
 #include "errno.h"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 
 /** arc cosine **/
 TYPE TGFN(acos)(TYPE x)
diff --git a/src/math/acosh.c b/src/math/acosh.c
index 12fe6b71..291087b2 100644
--- a/src/math/acosh.c
+++ b/src/math/acosh.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "acosh.c"
-#include "nontstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(acosh)(TYPE x)
diff --git a/src/math/asin.c b/src/math/asin.c
index 4c1599fe..92dae8c8 100644
--- a/src/math/asin.c
+++ b/src/math/asin.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "asin.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** arc sine **/
diff --git a/src/math/asinh.c b/src/math/asinh.c
index 48aae9b0..08700a25 100644
--- a/src/math/asinh.c
+++ b/src/math/asinh.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "asinh.c"
-#include "nontsd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(asinh)(TYPE x)
diff --git a/src/math/atan.c b/src/math/atan.c
index 5b4b0330..141367cb 100644
--- a/src/math/atan.c
+++ b/src/math/atan.c
@@ -1,7 +1,7 @@
 # define TGSOURCE "atan.c"
 #include <math.h>
 #include "errno.h"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 
 /** arc tangent **/
 TYPE TGFN(atan)(TYPE x)
diff --git a/src/math/atan2.c b/src/math/atan2.c
index be5b9dd6..c4c56a63 100644
--- a/src/math/atan2.c
+++ b/src/math/atan2.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "atan2.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 #include "nonstd/assert.h"
 
diff --git a/src/math/atanh.c b/src/math/atanh.c
index 5db3b26b..e99a26b7 100644
--- a/src/math/atanh.c
+++ b/src/math/atanh.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "atanh.c"
-#include "nontstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(atanh)(TYPE x)
diff --git a/src/math/cbrt.c b/src/math/cbrt.c
index 864a6117..156093ba 100644
--- a/src/math/cbrt.c
+++ b/src/math/cbrt.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "cbrt.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(cbrt)(TYPE x)
diff --git a/src/math/ceil.c b/src/math/ceil.c
index e9f950c8..7af395ac 100644
--- a/src/math/ceil.c
+++ b/src/math/ceil.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "ceil.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** round up to nearest integer **/
diff --git a/src/math/copysign.c b/src/math/copysign.c
index d070036b..6e5cb127 100644
--- a/src/math/copysign.c
+++ b/src/math/copysign.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "copysign.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(copysign)(TYPE x, TYPE y)
diff --git a/src/math/cos.c b/src/math/cos.c
index 0690b6ee..d10629a3 100644
--- a/src/math/cos.c
+++ b/src/math/cos.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "cos.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** cosine **/
diff --git a/src/math/cosh.c b/src/math/cosh.c
index 75301cf1..9065cd03 100644
--- a/src/math/cosh.c
+++ b/src/math/cosh.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "cosh.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** hyperbolic cosine **/
diff --git a/src/math/erf.c b/src/math/erf.c
index 97dbc2b4..33059480 100644
--- a/src/math/erf.c
+++ b/src/math/erf.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "erf.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(erf)(TYPE x)
diff --git a/src/math/erfc.c b/src/math/erfc.c
index 06b06b5a..84579e10 100644
--- a/src/math/erfc.c
+++ b/src/math/erfc.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "erfc.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(erfc)(TYPE x)
diff --git a/src/math/exp.c b/src/math/exp.c
index b63ecf4f..f244a60f 100644
--- a/src/math/exp.c
+++ b/src/math/exp.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "exp.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** exponential function **/
diff --git a/src/math/exp2.c b/src/math/exp2.c
index 7f67294d..599634e6 100644
--- a/src/math/exp2.c
+++ b/src/math/exp2.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "exp2.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(exp2)(TYPE x)
diff --git a/src/math/expm1.c b/src/math/expm1.c
index 4c3b1c45..152c6c1e 100644
--- a/src/math/expm1.c
+++ b/src/math/expm1.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "expm1.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(expm1)(TYPE x)
diff --git a/src/math/fabs.c b/src/math/fabs.c
index abd71bb7..9664b702 100644
--- a/src/math/fabs.c
+++ b/src/math/fabs.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "fabs.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** absolute value **/
diff --git a/src/math/fdim.c b/src/math/fdim.c
index 922c5040..c39c6753 100644
--- a/src/math/fdim.c
+++ b/src/math/fdim.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "fdim.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(fdim)(TYPE x, TYPE y)
diff --git a/src/math/floor.c b/src/math/floor.c
index 2b2e07ab..baa7d3a6 100644
--- a/src/math/floor.c
+++ b/src/math/floor.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "floor.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** round down to nearest integer **/
diff --git a/src/math/fma.c b/src/math/fma.c
index e2827918..18b059d1 100644
--- a/src/math/fma.c
+++ b/src/math/fma.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "fma.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(fma)(TYPE x, TYPE y, TYPE z)
diff --git a/src/math/fmax.c b/src/math/fmax.c
index 6b056b2b..dc354ca3 100644
--- a/src/math/fmax.c
+++ b/src/math/fmax.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "fmax.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(fmax)(TYPE x, TYPE y)
diff --git a/src/math/fmin.c b/src/math/fmin.c
index 56966432..822f893b 100644
--- a/src/math/fmin.c
+++ b/src/math/fmin.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "fmin.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(fmin)(TYPE x, TYPE y)
diff --git a/src/math/fmod.c b/src/math/fmod.c
index 98091880..d8254d40 100644
--- a/src/math/fmod.c
+++ b/src/math/fmod.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "fmod.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** floating-point remainder **/
diff --git a/src/math/fpclassify.c b/src/math/fpclassify.c
index da9b24af..a12432a2 100644
--- a/src/math/fpclassify.c
+++ b/src/math/fpclassify.c
@@ -4,7 +4,7 @@
                         int __fpclassifyl(long double x);
 
 #define fpclassify(x)    ((sizeof (x) == sizeof (float)) ? __fpclassifyf(x) : \
-         (sizeof (x) == sizeof (double)) ? __fpclassifyd(x) :  __fpclassifyl(x))
+	(sizeof (x) == sizeof (double)) ? __fpclassifyd(x) :  __fpclassifyl(x))
 
 /*
 STDC(199901)
diff --git a/src/math/frexp.c b/src/math/frexp.c
index 70c87eb1..40bb59c8 100644
--- a/src/math/frexp.c
+++ b/src/math/frexp.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "frexp.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** extract mantissa and exponent **/
diff --git a/src/math/hypot.c b/src/math/hypot.c
index 25fbae0b..6ab2ecf7 100644
--- a/src/math/hypot.c
+++ b/src/math/hypot.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "hypot.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(hypot)(TYPE x, TYPE y)
diff --git a/src/math/ilogb.c b/src/math/ilogb.c
index 2f37fa7b..0d826e04 100644
--- a/src/math/ilogb.c
+++ b/src/math/ilogb.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "ilogb.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(ilogb)(TYPE x)
diff --git a/src/math/isfinite.c b/src/math/isfinite.c
index 5fbf3582..dab650c0 100644
--- a/src/math/isfinite.c
+++ b/src/math/isfinite.c
@@ -4,7 +4,7 @@
                           int __isfinitel(long double x);
 
 #define isfinite(x)        ((sizeof (x) == sizeof (float)) ? __isfinitef(x) : \
-             (sizeof (x) == sizeof (double)) ? __isfinited(x) :  __isfinitel(x))
+	(sizeof (x) == sizeof (double)) ? __isfinited(x) :  __isfinitel(x))
 
 /*
 STDC(199901)
diff --git a/src/math/isinf.c b/src/math/isinf.c
index 031d870a..9139197f 100644
--- a/src/math/isinf.c
+++ b/src/math/isinf.c
@@ -4,7 +4,7 @@
                            int __isinfl(long double x);
 
 #define isinf(x)              ((sizeof (x) == sizeof (float)) ? __isinff(x) : \
-                    (sizeof (x) == sizeof (double)) ? __isinfd(x) : __isinfl(x))
+	(sizeof (x) == sizeof (double)) ? __isinfd(x) : __isinfl(x))
 
 /*
 STDC(199901)
diff --git a/src/math/isnan.c b/src/math/isnan.c
index 472bc4b8..963b7021 100644
--- a/src/math/isnan.c
+++ b/src/math/isnan.c
@@ -4,7 +4,7 @@
                        int __isnanl(long double x);
 
 #define isnan(x)              ((sizeof (x) == sizeof (float)) ? __isnanf(x) : \
-                    (sizeof (x) == sizeof (double)) ? __isnand(x) : __isnanl(x))
+	(sizeof (x) == sizeof (double)) ? __isnand(x) : __isnanl(x))
 
 /*
 STDC(199901)
diff --git a/src/math/ldexp.c b/src/math/ldexp.c
index f32c1d76..ab143982 100644
--- a/src/math/ldexp.c
+++ b/src/math/ldexp.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "ldexp.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** multiply by a power of 2 **/
diff --git a/src/math/lgamma.c b/src/math/lgamma.c
index 7336d946..3612c825 100644
--- a/src/math/lgamma.c
+++ b/src/math/lgamma.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "lgamma.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(lgamma)(TYPE x)
diff --git a/src/math/llrint.c b/src/math/llrint.c
index f0b9e9bf..a967f651 100644
--- a/src/math/llrint.c
+++ b/src/math/llrint.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "llrint.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 long long int TGFN(llrint)(TYPE x)
diff --git a/src/math/llround.c b/src/math/llround.c
index f259cfbb..1025df15 100644
--- a/src/math/llround.c
+++ b/src/math/llround.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "llround.c"
-#include "nontsd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 long long int TGFN(llround)(TYPE x)
diff --git a/src/math/log.c b/src/math/log.c
index a75fdafa..ee809cf5 100644
--- a/src/math/log.c
+++ b/src/math/log.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "log.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** natural logarithm **/
diff --git a/src/math/log10.c b/src/math/log10.c
index 5000910b..cea1d45b 100644
--- a/src/math/log10.c
+++ b/src/math/log10.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "log10.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** base-10 logarithm **/
diff --git a/src/math/log1p.c b/src/math/log1p.c
index 0afcb33f..30e4a8d1 100644
--- a/src/math/log1p.c
+++ b/src/math/log1p.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "log1p.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(log1p)(TYPE x)
diff --git a/src/math/log2.c b/src/math/log2.c
index 16a0363c..c438d7ce 100644
--- a/src/math/log2.c
+++ b/src/math/log2.c
@@ -1,5 +1,5 @@
 #define TGSOURCE "log2.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(log2)(TYPE x)
diff --git a/src/math/logb.c b/src/math/logb.c
index 49cdf274..d0bbfaca 100644
--- a/src/math/logb.c
+++ b/src/math/logb.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "logb.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(logb)(TYPE x)
diff --git a/src/math/lrint.c b/src/math/lrint.c
index 2ee0b986..16eaf7be 100644
--- a/src/math/lrint.c
+++ b/src/math/lrint.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "lrint.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 long int TGFN(lrint)(TYPE x)
diff --git a/src/math/lround.c b/src/math/lround.c
index e27c1225..d24f7738 100644
--- a/src/math/lround.c
+++ b/src/math/lround.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "lround.c"
-#include "nontstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 long int TGFN(lround)(TYPE x)
diff --git a/src/math/modf.c b/src/math/modf.c
index 73c5d3f3..fc09fc2d 100644
--- a/src/math/modf.c
+++ b/src/math/modf.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "modf.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** decompose floating-point numbers **/
diff --git a/src/math/nan.c b/src/math/nan.c
index ac96ca3d..c5615b98 100644
--- a/src/math/nan.c
+++ b/src/math/nan.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "nan.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(nan)(const char *tagp)
diff --git a/src/math/nearbyint.c b/src/math/nearbyint.c
index 1b3a5c72..c3994a62 100644
--- a/src/math/nearbyint.c
+++ b/src/math/nearbyint.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "nearbyint.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(nearbyint)(TYPE x)
diff --git a/src/math/nextafter.c b/src/math/nextafter.c
index fa059035..a91fa4b5 100644
--- a/src/math/nextafter.c
+++ b/src/math/nextafter.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "nextafter.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(nextafter)(TYPE x, TYPE y)
diff --git a/src/math/nexttoward.c b/src/math/nexttoward.c
index 6825d89b..2d8bc59f 100644
--- a/src/math/nexttoward.c
+++ b/src/math/nexttoward.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "nexttoward.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(nexttoward)(TYPE x, TYPE y)
diff --git a/src/math/pow.c b/src/math/pow.c
index 4fb3aa2a..c0d613e5 100644
--- a/src/math/pow.c
+++ b/src/math/pow.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "pow.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** exponentiation **/
diff --git a/src/math/remquo.c b/src/math/remquo.c
index 3aec6382..88e59c0f 100644
--- a/src/math/remquo.c
+++ b/src/math/remquo.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "remquo.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(remquo)(TYPE x, TYPE y, int *quo)
diff --git a/src/math/rint.c b/src/math/rint.c
index 920525d4..a1868cbb 100644
--- a/src/math/rint.c
+++ b/src/math/rint.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "rint.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(rint)(TYPE x)
diff --git a/src/math/round.c b/src/math/round.c
index 504bcead..c154bdbf 100644
--- a/src/math/round.c
+++ b/src/math/round.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "round.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(round)(TYPE x)
diff --git a/src/math/scalbln.c b/src/math/scalbln.c
index 1c564393..d59c3502 100644
--- a/src/math/scalbln.c
+++ b/src/math/scalbln.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "scalbln.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(scalbln)(TYPE x, long int n)
diff --git a/src/math/scalbn.c b/src/math/scalbn.c
index 3bbaa431..bf5b4aae 100644
--- a/src/math/scalbn.c
+++ b/src/math/scalbn.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "scalbn.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(scalbn)(TYPE x, int n)
diff --git a/src/math/signbit.c b/src/math/signbit.c
index 7b5ba8a2..3491a1e2 100644
--- a/src/math/signbit.c
+++ b/src/math/signbit.c
@@ -4,7 +4,7 @@
                          int __signbitl(long double x);
 
 #define signbit(x)          ((sizeof (x) == sizeof (float)) ? __signbitf(x) : \
-                (sizeof (x) == sizeof (double)) ? __signbitd(x) : __signbitl(x))
+	(sizeof (x) == sizeof (double)) ? __signbitd(x) : __signbitl(x))
 
 /*
 STDC(199901)
diff --git a/src/math/sin.c b/src/math/sin.c
index c5d127f0..b753cecb 100644
--- a/src/math/sin.c
+++ b/src/math/sin.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "sin.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** sine **/
diff --git a/src/math/sinh.c b/src/math/sinh.c
index 26363703..e5942de6 100644
--- a/src/math/sinh.c
+++ b/src/math/sinh.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "sinh.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** hyperbolic sine **/
diff --git a/src/math/sqrt.c b/src/math/sqrt.c
index dd9d4433..a53d4750 100644
--- a/src/math/sqrt.c
+++ b/src/math/sqrt.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "sqrt.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** square root **/
diff --git a/src/math/tan.c b/src/math/tan.c
index 16d83d78..2e60bd2f 100644
--- a/src/math/tan.c
+++ b/src/math/tan.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "tan.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** tangent **/
diff --git a/src/math/tanh.c b/src/math/tanh.c
index d2c09fe2..d64be283 100644
--- a/src/math/tanh.c
+++ b/src/math/tanh.c
@@ -1,6 +1,6 @@
 # define TGSOURCE "tanh.c"
 #include <math.h>
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include "errno.h"
 
 /** hyperbolic tangent **/
diff --git a/src/math/tgamma.c b/src/math/tgamma.c
index b7c7094c..25778059 100644
--- a/src/math/tgamma.c
+++ b/src/math/tgamma.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "tgamma.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(tgamma)(TYPE x)
diff --git a/src/math/trunc.c b/src/math/trunc.c
index d047d7f8..77671f5d 100644
--- a/src/math/trunc.c
+++ b/src/math/trunc.c
@@ -1,5 +1,5 @@
 # define TGSOURCE "trunc.c"
-#include "nonstd/tgmath.h"
+#include "_tgmath.h"
 #include <math.h>
 
 TYPE TGFN(trunc)(TYPE x)