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.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/stdio/pclose.c b/src/stdio/pclose.c
index 7fb76ed4..080a4262 100644
--- a/src/stdio/pclose.c
+++ b/src/stdio/pclose.c
@@ -1,5 +1,6 @@
 #include "stdio_impl.h"
-#include "syscall.h"
+#include <errno.h>
+#include <unistd.h>
 
 int pclose(FILE *f)
 {