diff --git a/toolbox/cp/cp.c b/toolbox/cp/cp.c
index e666453..0ea206e 100644
--- a/toolbox/cp/cp.c
+++ b/toolbox/cp/cp.c
@@ -95,7 +95,7 @@
 
 static int copy(char *[], enum op, int);
 
-#ifndef ANDROID
+#ifndef __ANDROID__
 static void
 progress(int sig __unused)
 {
@@ -112,9 +112,7 @@
 	int ch, fts_options, r, have_trailing_slash;
 	char *target, **src;
 
-#ifndef ANDROID
 	setprogname(argv[0]);
-#endif
 	(void)setlocale(LC_ALL, "");
 
 	Hflag = Lflag = Pflag = Rflag = 0;
@@ -222,7 +220,7 @@
 	/* Set end of argument list for fts(3). */
 	argv[argc] = NULL;
 
-#ifndef ANDROID
+#ifndef __ANDROID__
 	(void)signal(SIGINFO, progress);
 #endif
 
diff --git a/toolbox/cp/utils.c b/toolbox/cp/utils.c
index 9d0390f..12c3d67 100644
--- a/toolbox/cp/utils.c
+++ b/toolbox/cp/utils.c
@@ -42,7 +42,7 @@
 #include <sys/param.h>
 #include <sys/stat.h>
 #include <sys/time.h>
-#ifndef ANDROID
+#ifndef __ANDROID__
 #include <sys/extattr.h>
 #endif
 
@@ -58,7 +58,7 @@
 
 #include "extern.h"
 
-#ifdef ANDROID
+#ifdef __ANDROID__
 #define MAXBSIZE 65536
 #endif
 
@@ -70,7 +70,7 @@
 {
     static struct timeval tv[2];
 
-#ifdef ANDROID
+#ifdef __ANDROID__
     tv[0].tv_sec = fs->st_atime;
     tv[0].tv_usec = 0;
     tv[1].tv_sec = fs->st_mtime;
@@ -198,7 +198,9 @@
 	 * There's no reason to do anything other than close the file
 	 * now if it's empty, so let's not bother.
 	 */
+#ifndef __ANDROID__ // Files in /proc report length 0. mmap will fail but we'll fall back to read.
 	if (fs->st_size > 0) {
+#endif
 		struct finfo fi;
 
 		fi.from = entp->fts_path;
@@ -273,9 +275,11 @@
 				rval = 1;
 			}
 		}
+#ifndef __ANDROID__
 	}
+#endif
 
-#ifndef ANDROID
+#ifndef __ANDROID__
 	if (pflag && (fcpxattr(from_fd, to_fd) != 0))
 		warn("%s: error copying extended attributes", to.p_path);
 #endif
@@ -381,9 +385,7 @@
 setfile(struct stat *fs, int fd)
 {
 	int rval = 0;
-#ifndef ANDROID
 	int islink = S_ISLNK(fs->st_mode);
-#endif
 
 	fs->st_mode &= S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
 
@@ -401,7 +403,7 @@
 		}
 		fs->st_mode &= ~(S_ISUID | S_ISGID);
 	}
-#ifdef ANDROID
+#ifdef __ANDROID__
         if (fd ? fchmod(fd, fs->st_mode) : chmod(to.p_path, fs->st_mode)) {
 #else
         if (fd ? fchmod(fd, fs->st_mode) : lchmod(to.p_path, fs->st_mode)) {
@@ -410,7 +412,7 @@
                 rval = 1;
         }
 
-#ifndef ANDROID
+#ifndef __ANDROID__
 	if (!islink && !Nflag) {
 		unsigned long fflags = fs->st_flags;
 		/*