Build of shuffle with android toolchain

# [tuscan]
# Server = file:///var/cache/pacman/pkg/

# :: Synchronizing package databases...
# downloading tuscan.db...

# /toolchain_root/arm-linux-androideabi --> /sysroot/arm-linux-androideabi
# /toolchain_root/COPYING3.LIB --> /sysroot/COPYING3.LIB
# /toolchain_root/sysroot --> /sysroot/sysroot
# /toolchain_root/COPYING.RUNTIME --> /sysroot/COPYING.RUNTIME
# /toolchain_root/lib --> /sysroot/lib
# /toolchain_root/SOURCES --> /sysroot/SOURCES
# /toolchain_root/lib64 --> /sysroot/lib64
# /toolchain_root/share --> /sysroot/share
# /toolchain_root/bin --> /sysroot/bin
# /toolchain_root/COPYING --> /sysroot/COPYING
# /toolchain_root/COPYING3 --> /sysroot/COPYING3
# /toolchain_root/COPYING.LIB --> /sysroot/COPYING.LIB
# /toolchain_root/include --> /sysroot/include
# /toolchain_root/libexec --> /sysroot/libexec

# ==> Making package: shuffle 1.5-5 (Tue Apr 4 20:52:20 UTC 2017)
# ==> Checking runtime dependencies...
# ==> Checking buildtime dependencies...
# ==> WARNING: Using existing $srcdir/ tree
# ==> Starting build()...
# cc1: error: no include path in which to search for stdc-predef.h
# shuffle.c:19:22: error: no include path in which to search for sys/mman.h
# #include
# ^
# shuffle.c:20:23: error: no include path in which to search for sys/types.h
# #include
# ^
# shuffle.c:21:20: error: no include path in which to search for unistd.h
# #include
# ^
# shuffle.c:22:20: error: no include path in which to search for string.h
# #include
# ^
# shuffle.c:23:20: error: no include path in which to search for stdlib.h
# #include
# ^
# shuffle.c:24:22: error: no include path in which to search for sys/stat.h
# #include
# ^
# shuffle.c:25:19: error: no include path in which to search for fcntl.h
# #include
# ^
# shuffle.c:26:19: error: no include path in which to search for errno.h
# #include
# ^
# shuffle.c:27:18: error: no include path in which to search for time.h
# #include
# ^
# shuffle.c: In function 'fatal':
# shuffle.c:39:25: warning: incompatible implicit declaration of built-in function 'strlen' [enabled by default]
# (void) write(2, msg1, strlen(msg1));
# ^
# shuffle.c:42:3: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
# exit(1);
# ^
# shuffle.c: In function 'syserr':
# shuffle.c:48:23: error: 'errno' undeclared (first use in this function)
# fatal(msg, strerror(errno));
# ^
# shuffle.c:48:23: note: each undeclared identifier is reported only once for each function it appears in
# shuffle.c: In function 'random_uniform':
# shuffle.c:54:14: error: 'RAND_MAX' undeclared (first use in this function)
# int r, m = RAND_MAX - (RAND_MAX % n);
# ^
# shuffle.c: In function 'main':
# shuffle.c:74:3: error: unknown type name 'off_t'
# off_t len;
# ^
# shuffle.c:81:31: error: 'O_WRONLY' undeclared (first use in this function)
# && (out = open(argv[2], O_WRONLY|O_CREAT)) < 0) syserr(argv[2]);
# ^
# shuffle.c:81:40: error: 'O_CREAT' undeclared (first use in this function)
# && (out = open(argv[2], O_WRONLY|O_CREAT)) < 0) syserr(argv[2]);
# ^
# shuffle.c:83:30: error: 'O_RDONLY' undeclared (first use in this function)
# && (in = open(argv[1], O_RDONLY)) < 0) syserr(argv[1]);
# ^
# shuffle.c:86:32: error: 'SEEK_END' undeclared (first use in this function)
# ismmap = (len = lseek(in, 0, SEEK_END)) >= 0;
# ^
# shuffle.c:88:16: error: 'NULL' undeclared (first use in this function)
# buf = mmap(NULL, len, PROT_READ, MAP_PRIVATE, in, 0);
# ^
# shuffle.c:88:27: error: 'PROT_READ' undeclared (first use in this function)
# buf = mmap(NULL, len, PROT_READ, MAP_PRIVATE, in, 0);
# ^
# shuffle.c:88:38: error: 'MAP_PRIVATE' undeclared (first use in this function)
# buf = mmap(NULL, len, PROT_READ, MAP_PRIVATE, in, 0);
# ^
# shuffle.c:91:18: warning: incompatible implicit declaration of built-in function 'malloc' [enabled by default]
# if (! (buf = malloc(BUFINC))) syserr(argv[0]);
# ^
# shuffle.c:93:20: warning: incompatible implicit declaration of built-in function 'realloc' [enabled by default]
# if (! (buf = realloc(buf, len + i + BUFINC))) syserr(argv[0]);
# ^
# shuffle.c:102:18: warning: incompatible implicit declaration of built-in function 'malloc' [enabled by default]
# if (! (lines = malloc((nlines + 1) * sizeof(lines[0])))) syserr(argv[0]);
# ^
# shuffle.c:123:16: warning: incompatible implicit declaration of built-in function 'free' [enabled by default]
# if (!ismmap) free(buf);
# ^
# ==> ERROR: A failure occurred in build().
# Aborting...