include cleanups: remove unused headers and add feature test macros

6 files changed, 3 insertions, 9 deletions

diff --git a/src/stdio/fgetln.c b/src/stdio/fgetln.c
index a2e4bd3c..afe12b5d 100644
--- a/src/stdio/fgetln.c
+++ b/src/stdio/fgetln.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
 #include "stdio_impl.h"
 #include <string.h>
 
diff --git a/src/stdio/fwide.c b/src/stdio/fwide.c
index 48480685..fdf8e4bb 100644
--- a/src/stdio/fwide.c
+++ b/src/stdio/fwide.c
@@ -1,3 +1,4 @@
+#include <wchar.h>
 #include "stdio_impl.h"
 
 #define SH (8*sizeof(int)-1)
diff --git a/src/stdio/swprintf.c b/src/stdio/swprintf.c
index cbf83d23..f75eb112 100644
--- a/src/stdio/swprintf.c
+++ b/src/stdio/swprintf.c
@@ -1,4 +1,3 @@
-#include <stdio.h>
 #include <stdarg.h>
 #include <wchar.h>
 
diff --git a/src/stdio/swscanf.c b/src/stdio/swscanf.c
index c7986096..d893fbac 100644
--- a/src/stdio/swscanf.c
+++ b/src/stdio/swscanf.c
@@ -1,4 +1,3 @@
-#include <stdio.h>
 #include <stdarg.h>
 #include <wchar.h>
 #include "libc.h"
diff --git a/src/stdio/vfscanf.c b/src/stdio/vfscanf.c
index c0e607f5..0091a8d4 100644
--- a/src/stdio/vfscanf.c
+++ b/src/stdio/vfscanf.c
@@ -5,10 +5,7 @@
 #include <wctype.h>
 #include <limits.h>
 #include <string.h>
-#include <errno.h>
-#include <math.h>
-#include <float.h>
-#include <inttypes.h>
+#include <stdint.h>
 
 #include "stdio_impl.h"
 #include "shgetc.h"
diff --git a/src/stdio/vfwscanf.c b/src/stdio/vfwscanf.c
index 75f04d72..f8f4b70f 100644
--- a/src/stdio/vfwscanf.c
+++ b/src/stdio/vfwscanf.c
@@ -6,9 +6,6 @@
 #include <wctype.h>
 #include <limits.h>
 #include <string.h>
-#include <errno.h>
-#include <math.h>
-#include <float.h>
 
 #include "stdio_impl.h"
 #include "shgetc.h"