4 files changed, 5 insertions, 1 deletions
diff --git a/src/math/lgamma_r.c b/src/math/lgamma_r.c
index e3ed1733..82e296f5 100644
--- a/src/math/lgamma_r.c
+++ b/src/math/lgamma_r.c
@@ -79,6 +79,7 @@
  */
 
 #include "libm.h"
+#include "libc.h"
 
 static const double
 two52= 4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */
diff --git a/src/math/lgammaf_r.c b/src/math/lgammaf_r.c
index 976986aa..dc65bace 100644
--- a/src/math/lgammaf_r.c
+++ b/src/math/lgammaf_r.c
@@ -14,6 +14,7 @@
  */
 
 #include "libm.h"
+#include "libc.h"
 
 static const float
 two23= 8.3886080000e+06, /* 0x4b000000 */
diff --git a/src/math/lgammal.c b/src/math/lgammal.c
index 5d56358e..cc4895eb 100644
--- a/src/math/lgammal.c
+++ b/src/math/lgammal.c
@@ -87,6 +87,7 @@
 
 #define _GNU_SOURCE
 #include "libm.h"
+#include "libc.h"
 
 #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
 double __lgamma_r(double x, int *sg);
diff --git a/src/math/signgam.c b/src/math/signgam.c
index b39ceb04..cd728001 100644
--- a/src/math/signgam.c
+++ b/src/math/signgam.c
@@ -1,4 +1,5 @@
-#include "libm.h"
+#include <math.h>
+#include "libc.h"
 
 int __signgam = 0;