--- libstdc++-v3/configure.host.orig
+++ libstdc++-v3/configure.host
@@ -262,6 +262,9 @@
   freebsd*)
     os_include_dir="os/bsd/freebsd"
     ;;
+  linux-android*)
+    os_include_dir="os/bionic"
+    ;;
   linux-musl*)
     os_include_dir="os/generic"
     ;;
--- libstdc++-v3/config/os/bionic/ctype_base.h.orig
+++ libstdc++-v3/config/os/bionic/ctype_base.h
@@ -38,6 +38,18 @@
     // Non-standard typedefs.
     typedef const int* 		__to_type;
 
+#ifdef _CTYPE_U
+#define _U _CTYPE_U
+#define _L _CTYPE_L
+#define _D _CTYPE_D
+#define _S _CTYPE_S
+#define _P _CTYPE_P
+#define _C _CTYPE_C
+#define _X _CTYPE_X
+#define _B _CTYPE_B
+#define _N _CTYPE_D
+#endif
+
     // NB: Offsets into ctype<char>::_M_table force a particular size
     // on the mask type. Because of this, we don't use an enum.
     typedef char 		mask;
--- libstdc++-v3/src/c++11/futex.cc.orig
+++ libstdc++-v3/src/c++11/futex.cc
@@ -27,7 +27,11 @@
 #if defined(_GLIBCXX_HAVE_LINUX_FUTEX) && ATOMIC_INT_LOCK_FREE > 1
 #include <chrono>
 #include <climits>
+#ifdef __ANDROID__
+#include <sys/syscall.h>
+#else
 #include <syscall.h>
+#endif
 #include <unistd.h>
 #include <sys/time.h>
 #include <errno.h>
--- libstdc++-v3/src/filesystem/dir.cc.orig
+++ libstdc++-v3/src/filesystem/dir.cc
@@ -146,7 +146,13 @@
 
   int err = std::exchange(errno, 0);
   const auto entp = readdir(dirp);
+#ifdef __ANDROID__
+  int tmperr = errno;
+  errno = err;
+  err = tmperr;
+#else
   std::swap(errno, err);
+#endif
 
   if (entp)
     {