clean up stdio_impl.h

this header evolved to facilitate the extremely lazy practice of
omitting explicit includes of the necessary headers in individual
stdio source files; not only was this sloppy, but it also increased
build time.

now, stdio_impl.h is only including the headers it needs for its own
use; any further headers needed by source files are included directly
where needed.

3 files changed, 2 insertions, 17 deletions

diff --git a/src/internal/floatscan.c b/src/internal/floatscan.c
index 08251213..f6e331d4 100644
--- a/src/internal/floatscan.c
+++ b/src/internal/floatscan.c
@@ -4,6 +4,7 @@
 #include <float.h>
 #include <limits.h>
 #include <errno.h>
+#include <ctype.h>
 
 #include "shgetc.h"
 #include "floatscan.h"
diff --git a/src/internal/intscan.c b/src/internal/intscan.c
index 178cdf0d..69350efa 100644
--- a/src/internal/intscan.c
+++ b/src/internal/intscan.c
@@ -1,5 +1,6 @@
 #include <limits.h>
 #include <errno.h>
+#include <ctype.h>
 #include "shgetc.h"
 
 /* Lookup table for digit values. -1==255>=36 -> invalid */
diff --git a/src/internal/stdio_impl.h b/src/internal/stdio_impl.h
index e9045f27..c9d20fac 100644
--- a/src/internal/stdio_impl.h
+++ b/src/internal/stdio_impl.h
@@ -2,23 +2,6 @@
 #define _STDIO_IMPL_H
 
 #include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <stdarg.h>
-#include <string.h>
-#include <inttypes.h>
-#include <wchar.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <errno.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-#include <ctype.h>
-#include <sys/wait.h>
-#include <math.h>
-#include <float.h>
-#include <sys/uio.h>
 #include "syscall.h"
 #include "libc.h"