Fix header file usage -- there were many unnecessary header files included in

busybox.h which slowed compiles.  I left only what was needed and then fixed up
all the apps to include their own header files.  I also fixed naming for pwd.h
and grp.h functions.  Tested to compile and run with libc5, glibc, and uClibc.
 -Erik

4 files changed, 11 insertions, 0 deletions

diff --git a/archival/ar.c b/archival/ar.c
index 596574e..550b2a1 100644
--- a/archival/ar.c
+++ b/archival/ar.c
@@ -23,6 +23,10 @@
  *
  */
 #include <fcntl.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <unistd.h>
 #include "busybox.h"
 
 typedef struct ar_headers_s {
diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c
index 3590495..3a78937 100644
--- a/archival/dpkg_deb.c
+++ b/archival/dpkg_deb.c
@@ -17,6 +17,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
 #include "busybox.h"
 
 typedef struct ar_headers_s {
diff --git a/archival/gzip.c b/archival/gzip.c
index 0926092..5a74868 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -45,6 +45,7 @@
  */
 #include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 #define memzero(s, n)     memset ((void *)(s), 0, (n))
 
 #ifndef RETSIGTYPE
diff --git a/archival/tar.c b/archival/tar.c
index 51a857d..2c7169b 100644
--- a/archival/tar.c
+++ b/archival/tar.c
@@ -52,6 +52,9 @@
 #include <sys/sysmacros.h>
 #include <getopt.h>
 #include <fnmatch.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
 
 #ifdef BB_FEATURE_TAR_GZIP
 extern int unzip(int in, int out);