remove spurious inclusion of libc.h for LFS64 ABI aliases

the LFS64 macro was not self-documenting and barely saved any
characters. simply use weak_alias directly so that it's clear what's
being done, and doesn't depend on a header to provide a strange macro.

src/aio/aio.c

@@ -370,9 +370,9 @@ int __aio_close(int fd)
 	return fd;
 }
 
-LFS64(aio_cancel);
-LFS64(aio_error);
-LFS64(aio_fsync);
-LFS64(aio_read);
-LFS64(aio_write);
-LFS64(aio_return);
+weak_alias(aio_cancel, aio_cancel64);
+weak_alias(aio_error, aio_error64);
+weak_alias(aio_fsync, aio_fsync64);
+weak_alias(aio_read, aio_read64);
+weak_alias(aio_write, aio_write64);
+weak_alias(aio_return, aio_return64);

src/aio/aio_suspend.c

@@ -73,4 +73,4 @@ int aio_suspend(const struct aiocb *const cbs[], int cnt, const struct timespec
 	}
 }
 
-LFS64(aio_suspend);
+weak_alias(aio_suspend, aio_suspend64);

src/aio/lio_listio.c

@@ -140,4 +140,4 @@ int lio_listio(int mode, struct aiocb *restrict const *restrict cbs, int cnt, st
 	return 0;
 }
 
-LFS64(lio_listio);
+weak_alias(lio_listio, lio_listio64);

src/dirent/alphasort.c

 #include <string.h>
 #include <dirent.h>
-#include "libc.h"
 
 int alphasort(const struct dirent **a, const struct dirent **b)
 {
 	return strcoll((*a)->d_name, (*b)->d_name);
 }
 
-LFS64(alphasort);
+weak_alias(alphasort, alphasort64);

src/dirent/readdir.c

@@ -3,7 +3,6 @@
 #include <stddef.h>
 #include "__dirent.h"
 #include "syscall.h"
-#include "libc.h"
 
 typedef char dirstream_buf_alignment_check[1-2*(int)(
 	offsetof(struct __dirstream, buf) % sizeof(off_t))];
@@ -27,4 +26,4 @@ struct dirent *readdir(DIR *dir)
 	return de;
 }
 
-LFS64(readdir);
+weak_alias(readdir, readdir64);

src/dirent/readdir_r.c

@@ -26,4 +26,4 @@ int readdir_r(DIR *restrict dir, struct dirent *restrict buf, struct dirent **re
 	return 0;
 }
 
-LFS64_2(readdir_r, readdir64_r);
+weak_alias(readdir_r, readdir64_r);

src/dirent/scandir.c

@@ -4,7 +4,6 @@
 #include <stdint.h>
 #include <errno.h>
 #include <stddef.h>
-#include "libc.h"
 
 int scandir(const char *path, struct dirent ***res,
 	int (*sel)(const struct dirent *),
@@ -45,4 +44,4 @@ int scandir(const char *path, struct dirent ***res,
 	return cnt;
 }
 
-LFS64(scandir);
+weak_alias(scandir, scandir64);

src/dirent/versionsort.c

 #define _GNU_SOURCE
 #include <string.h>
 #include <dirent.h>
-#include "libc.h"
 
 int versionsort(const struct dirent **a, const struct dirent **b)
 {
@@ -9,4 +8,4 @@ int versionsort(const struct dirent **a, const struct dirent **b)
 }
 
 #undef versionsort64
-LFS64(versionsort);
+weak_alias(versionsort, versionsort64);

src/fcntl/creat.c

 #include <fcntl.h>
-#include "libc.h"
 
 int creat(const char *filename, mode_t mode)
 {
 	return open(filename, O_CREAT|O_WRONLY|O_TRUNC, mode);
 }
 
-LFS64(creat);
+weak_alias(creat, creat64);

src/fcntl/open.c

 #include <fcntl.h>
 #include <stdarg.h>
 #include "syscall.h"
-#include "libc.h"
 
 int open(const char *filename, int flags, ...)
 {
@@ -21,4 +20,4 @@ int open(const char *filename, int flags, ...)
 	return __syscall_ret(fd);
 }
 
-LFS64(open);
+weak_alias(open, open64);

src/fcntl/openat.c

 #include <fcntl.h>
 #include <stdarg.h>
 #include "syscall.h"
-#include "libc.h"
 
 int openat(int fd, const char *filename, int flags, ...)
 {
@@ -17,4 +16,4 @@ int openat(int fd, const char *filename, int flags, ...)
 	return syscall_cp(SYS_openat, fd, filename, flags|O_LARGEFILE, mode);
 }
 
-LFS64(openat);
+weak_alias(openat, openat64);

src/fcntl/posix_fadvise.c

 #include <fcntl.h>
 #include "syscall.h"
-#include "libc.h"
 
 int posix_fadvise(int fd, off_t base, off_t len, int advice)
 {
@@ -16,4 +15,4 @@ int posix_fadvise(int fd, off_t base, off_t len, int advice)
 #endif
 }
 
-LFS64(posix_fadvise);
+weak_alias(posix_fadvise, posix_fadvise64);

src/fcntl/posix_fallocate.c

 #include <fcntl.h>
 #include "syscall.h"
-#include "libc.h"
 
 int posix_fallocate(int fd, off_t base, off_t len)
 {
@@ -8,4 +7,4 @@ int posix_fallocate(int fd, off_t base, off_t len)
 		__SYSCALL_LL_E(len));
 }
 
-LFS64(posix_fallocate);
+weak_alias(posix_fallocate, posix_fallocate64);

src/internal/libc.h

@@ -59,10 +59,4 @@ hidden void __unlock(volatile int *);
 hidden void __synccall(void (*)(void *), void *);
 hidden int __setxid(int, int, int, int);
 
-#undef LFS64_2
-#define LFS64_2(x, y) weak_alias(x, y)
-
-#undef LFS64
-#define LFS64(x) LFS64_2(x, x##64)
-
 #endif

src/legacy/ftw.c

 #include <ftw.h>
-#include "libc.h"
 
 int ftw(const char *path, int (*fn)(const char *, const struct stat *, int), int fd_limit)
 {
@@ -9,4 +8,4 @@ int ftw(const char *path, int (*fn)(const char *, const struct stat *, int), int
 	return nftw(path, (int (*)())fn, fd_limit, FTW_PHYS);
 }
 
-LFS64(ftw);
+weak_alias(ftw, ftw64);

src/linux/fallocate.c

 #define _GNU_SOURCE
 #include <fcntl.h>
 #include "syscall.h"
-#include "libc.h"
 
 int fallocate(int fd, int mode, off_t base, off_t len)
 {
@@ -10,4 +9,4 @@ int fallocate(int fd, int mode, off_t base, off_t len)
 }
 
 #undef fallocate64
-LFS64(fallocate);
+weak_alias(fallocate, fallocate64);

src/linux/getdents.c

 #define _BSD_SOURCE
 #include <dirent.h>
 #include "syscall.h"
-#include "libc.h"
 
 int getdents(int fd, struct dirent *buf, size_t len)
 {
 	return syscall(SYS_getdents, fd, buf, len);
 }
 
-LFS64(getdents);
+weak_alias(getdents, getdents64);

src/linux/prlimit.c

 #define _GNU_SOURCE
 #include <sys/resource.h>
 #include "syscall.h"
-#include "libc.h"
 
 #define FIX(x) do{ if ((x)>=SYSCALL_RLIM_INFINITY) (x)=RLIM_INFINITY; }while(0)
 
@@ -24,4 +23,4 @@ int prlimit(pid_t pid, int resource, const struct rlimit *new_limit, struct rlim
 }
 
 #undef prlimit64
-LFS64(prlimit);
+weak_alias(prlimit, prlimit64);

src/linux/sendfile.c

 #include <sys/sendfile.h>
 #include "syscall.h"
-#include "libc.h"
 
 ssize_t sendfile(int out_fd, int in_fd, off_t *ofs, size_t count)
 {
 	return syscall(SYS_sendfile, out_fd, in_fd, ofs, count);
 }
 
-LFS64(sendfile);
+weak_alias(sendfile, sendfile64);

src/misc/getrlimit.c

 #include <sys/resource.h>
 #include <errno.h>
 #include "syscall.h"
-#include "libc.h"
 
 #define FIX(x) do{ if ((x)>=SYSCALL_RLIM_INFINITY) (x)=RLIM_INFINITY; }while(0)
 
@@ -24,4 +23,4 @@ int getrlimit(int resource, struct rlimit *rlim)
 	return 0;
 }
 
-LFS64(getrlimit);
+weak_alias(getrlimit, getrlimit64);

src/misc/lockf.c

 #include <unistd.h>
 #include <fcntl.h>
 #include <errno.h>
-#include "libc.h"
 
 int lockf(int fd, int op, off_t size)
 {
@@ -30,4 +29,4 @@ int lockf(int fd, int op, off_t size)
 	return -1;
 }
 
-LFS64(lockf);
+weak_alias(lockf, lockf64);

src/misc/nftw.c

@@ -6,7 +6,6 @@
 #include <string.h>
 #include <limits.h>
 #include <pthread.h>
-#include "libc.h"
 
 struct history
 {
@@ -126,4 +125,4 @@ int nftw(const char *path, int (*fn)(const char *, const struct stat *, int, str
 	return r;
 }
 
-LFS64(nftw);
+weak_alias(nftw, nftw64);

src/misc/setrlimit.c

@@ -47,4 +47,4 @@ int setrlimit(int resource, const struct rlimit *rlim)
 	return 0;
 }
 
-LFS64(setrlimit);
+weak_alias(setrlimit, setrlimit64);

src/mman/mmap.c

@@ -4,7 +4,6 @@
 #include <stdint.h>
 #include <limits.h>
 #include "syscall.h"
-#include "libc.h"
 
 static void dummy(void) { }
 weak_alias(dummy, __vm_wait);
@@ -39,4 +38,4 @@ void *__mmap(void *start, size_t len, int prot, int flags, int fd, off_t off)
 
 weak_alias(__mmap, mmap);
 
-LFS64(mmap);
+weak_alias(mmap, mmap64);

src/regex/glob.c

@@ -7,7 +7,6 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <stddef.h>
-#include "libc.h"
 
 struct match
 {
@@ -240,5 +239,5 @@ void globfree(glob_t *g)
 	g->gl_pathv = NULL;
 }
 
-LFS64(glob);
-LFS64(globfree);
+weak_alias(glob, glob64);
+weak_alias(globfree, globfree64);

src/stat/__xstat.c

 #include <sys/stat.h>
-#include "libc.h"
 
 int __fxstat(int ver, int fd, struct stat *buf)
 {
@@ -21,10 +20,10 @@ int __xstat(int ver, const char *path, struct stat *buf)
 	return stat(path, buf);
 }
 
-LFS64(__fxstat);
-LFS64(__fxstatat);
-LFS64(__lxstat);
-LFS64(__xstat);
+weak_alias(__fxstat, __fxstat64);
+weak_alias(__fxstatat, __fxstatat64);
+weak_alias(__lxstat, __lxstat64);
+weak_alias(__xstat, __xstat64);
 
 int __xmknod(int ver, const char *path, mode_t mode, dev_t *dev)
 {

src/stat/fstat.c

@@ -2,7 +2,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include "syscall.h"
-#include "libc.h"
 
 int fstat(int fd, struct stat *st)
 {
@@ -19,4 +18,4 @@ int fstat(int fd, struct stat *st)
 #endif
 }
 
-LFS64(fstat);
+weak_alias(fstat, fstat64);

src/stat/fstatat.c

 #include <sys/stat.h>
 #include "syscall.h"
-#include "libc.h"
 
 int fstatat(int fd, const char *restrict path, struct stat *restrict buf, int flag)
 {
 	return syscall(SYS_fstatat, fd, path, buf, flag);
 }
 
-LFS64(fstatat);
+weak_alias(fstatat, fstatat64);

src/stat/lstat.c

 #include <sys/stat.h>
 #include <fcntl.h>
 #include "syscall.h"
-#include "libc.h"
 
 int lstat(const char *restrict path, struct stat *restrict buf)
 {
@@ -12,4 +11,4 @@ int lstat(const char *restrict path, struct stat *restrict buf)
 #endif
 }
 
-LFS64(lstat);
+weak_alias(lstat, lstat64);

src/stat/stat.c

 #include <sys/stat.h>
 #include <fcntl.h>
 #include "syscall.h"
-#include "libc.h"
 
 int stat(const char *restrict path, struct stat *restrict buf)
 {
@@ -12,4 +11,4 @@ int stat(const char *restrict path, struct stat *restrict buf)
 #endif
 }
 
-LFS64(stat);
+weak_alias(stat, stat64);

src/stat/statvfs.c

 #include <sys/statvfs.h>
 #include <sys/statfs.h>
 #include "syscall.h"
-#include "libc.h"
 
 static int __statfs(const char *path, struct statfs *buf)
 {
@@ -58,7 +57,7 @@ int fstatvfs(int fd, struct statvfs *buf)
 	return 0;
 }
 
-LFS64(statvfs);
-LFS64(statfs);
-LFS64(fstatvfs);
-LFS64(fstatfs);
+weak_alias(statvfs, statvfs64);
+weak_alias(statfs, statfs64);
+weak_alias(fstatvfs, fstatvfs64);
+weak_alias(fstatfs, fstatfs64);

src/stdio/fgetpos.c

 #include "stdio_impl.h"
-#include "libc.h"
 
 int fgetpos(FILE *restrict f, fpos_t *restrict pos)
 {
@@ -9,4 +8,4 @@ int fgetpos(FILE *restrict f, fpos_t *restrict pos)
 	return 0;
 }
 
-LFS64(fgetpos);
+weak_alias(fgetpos, fgetpos64);

src/stdio/fopen.c

@@ -2,7 +2,6 @@
 #include <fcntl.h>
 #include <string.h>
 #include <errno.h>
-#include "libc.h"
 
 FILE *fopen(const char *restrict filename, const char *restrict mode)
 {
@@ -31,4 +30,4 @@ FILE *fopen(const char *restrict filename, const char *restrict mode)
 	return 0;
 }
 
-LFS64(fopen);
+weak_alias(fopen, fopen64);

src/stdio/freopen.c

 #include "stdio_impl.h"
 #include <fcntl.h>
 #include <unistd.h>
-#include "libc.h"
 
 /* The basic idea of this implementation is to open a new FILE,
  * hack the necessary parts of the new FILE into the old one, then
@@ -51,4 +50,4 @@ fail:
 	return NULL;
 }
 
-LFS64(freopen);
+weak_alias(freopen, freopen64);

src/stdio/fseek.c

 #include "stdio_impl.h"
-#include "libc.h"
 
 int __fseeko_unlocked(FILE *f, off_t off, int whence)
 {
@@ -41,4 +40,4 @@ int fseek(FILE *f, long off, int whence)
 
 weak_alias(__fseeko, fseeko);
 
-LFS64(fseeko);
+weak_alias(fseeko, fseeko64);

src/stdio/fsetpos.c

 #include "stdio_impl.h"
-#include "libc.h"
 
 int fsetpos(FILE *f, const fpos_t *pos)
 {
 	return __fseeko(f, *(const long long *)pos, SEEK_SET);
 }
 
-LFS64(fsetpos);
+weak_alias(fsetpos, fsetpos64);

src/stdio/ftell.c

 #include "stdio_impl.h"
 #include <limits.h>
 #include <errno.h>
-#include "libc.h"
 
 off_t __ftello_unlocked(FILE *f)
 {
@@ -35,4 +34,4 @@ long ftell(FILE *f)
 
 weak_alias(__ftello, ftello);
 
-LFS64(ftello);
+weak_alias(ftello, ftello64);

src/stdio/tmpfile.c

@@ -2,7 +2,6 @@
 #include <fcntl.h>
 #include <stdlib.h>
 #include "stdio_impl.h"
-#include "libc.h"
 
 #define MAXTRIES 100
 
@@ -29,4 +28,4 @@ FILE *tmpfile(void)
 	return 0;
 }
 
-LFS64(tmpfile);
+weak_alias(tmpfile, tmpfile64);

src/temp/mkostemp.c

 #define _BSD_SOURCE
 #include <stdlib.h>
-#include "libc.h"
 
 int mkostemp(char *template, int flags)
 {
 	return __mkostemps(template, 0, flags);
 }
 
-LFS64(mkostemp);
+weak_alias(mkostemp, mkostemp64);

src/temp/mkstemp.c

 #include <stdlib.h>
-#include "libc.h"
 
 int mkstemp(char *template)
 {
 	return __mkostemps(template, 0, 0);
 }
 
-LFS64(mkstemp);
+weak_alias(mkstemp, mkstemp64);

src/temp/mkstemps.c

 #define _BSD_SOURCE
 #include <stdlib.h>
-#include "libc.h"
 
 int mkstemps(char *template, int len)
 {
 	return __mkostemps(template, len, 0);
 }
 
-LFS64(mkstemps);
+weak_alias(mkstemps, mkstemps64);

src/unistd/ftruncate.c

 #include <unistd.h>
 #include "syscall.h"
-#include "libc.h"
 
 int ftruncate(int fd, off_t length)
 {
 	return syscall(SYS_ftruncate, fd, __SYSCALL_LL_O(length));
 }
 
-LFS64(ftruncate);
+weak_alias(ftruncate, ftruncate64);

src/unistd/lseek.c

 #include <unistd.h>
 #include "syscall.h"
-#include "libc.h"
 
 off_t lseek(int fd, off_t offset, int whence)
 {
@@ -12,4 +11,4 @@ off_t lseek(int fd, off_t offset, int whence)
 #endif
 }
 
-LFS64(lseek);
+weak_alias(lseek, lseek64);

src/unistd/pread.c

 #include <unistd.h>
 #include "syscall.h"
-#include "libc.h"
 
 ssize_t pread(int fd, void *buf, size_t size, off_t ofs)
 {
 	return syscall_cp(SYS_pread, fd, buf, size, __SYSCALL_LL_PRW(ofs));
 }
 
-LFS64(pread);
+weak_alias(pread, pread64);

src/unistd/preadv.c

@@ -2,7 +2,6 @@
 #include <sys/uio.h>
 #include <unistd.h>
 #include "syscall.h"
-#include "libc.h"
 
 ssize_t preadv(int fd, const struct iovec *iov, int count, off_t ofs)
 {
@@ -10,4 +9,4 @@ ssize_t preadv(int fd, const struct iovec *iov, int count, off_t ofs)
 		(long)(ofs), (long)(ofs>>32));
 }
 
-LFS64(preadv);
+weak_alias(preadv, preadv64);

src/unistd/pwrite.c

 #include <unistd.h>
 #include "syscall.h"
-#include "libc.h"
 
 ssize_t pwrite(int fd, const void *buf, size_t size, off_t ofs)
 {
 	return syscall_cp(SYS_pwrite, fd, buf, size, __SYSCALL_LL_PRW(ofs));
 }
 
-LFS64(pwrite);
+weak_alias(pwrite, pwrite64);

src/unistd/pwritev.c

@@ -2,7 +2,6 @@
 #include <sys/uio.h>
 #include <unistd.h>
 #include "syscall.h"
-#include "libc.h"
 
 ssize_t pwritev(int fd, const struct iovec *iov, int count, off_t ofs)
 {
@@ -10,4 +9,4 @@ ssize_t pwritev(int fd, const struct iovec *iov, int count, off_t ofs)
 		(long)(ofs), (long)(ofs>>32));
 }
 
-LFS64(pwritev);
+weak_alias(pwritev, pwritev64);

src/unistd/truncate.c

 #include <unistd.h>
 #include "syscall.h"
-#include "libc.h"
 
 int truncate(const char *path, off_t length)
 {
 	return syscall(SYS_truncate, path, __SYSCALL_LL_O(length));
 }
 
-LFS64(truncate);
+weak_alias(truncate, truncate64);