Make improvements

- Invent openatemp() API
- Invent O_UNLINK open flag
- Introduce getenv_secure() API
- Remove `git pull` from cosmocc
- Fix utimes() when path is NULL
- Fix mktemp() to never return NULL
- Fix utimensat() UTIME_OMIT on XNU
- Improve utimensat() code for RHEL5
- Turn `argv[0]` C:/ to /C/ on Windows
- Introduce tmpnam() and tmpnam_r() APIs
- Fix more const issues with internal APIs
- Permit utimes() on WIN32 in O_RDONLY mode
- Fix fdopendir() to check fd is a directory
- Fix recent crash regression in landlock make
- Fix futimens(AT_FDCWD, NULL) to return EBADF
- Use workaround so `make -j` doesn't fork bomb
- Rename dontdiscard to __wur (just like glibc)
- Fix st_size for WIN32 symlinks containing UTF-8
- Introduce stdio ext APIs needed by GNU coreutils
- Fix lstat() on WIN32 for symlinks to directories
- Move some constants from normalize.inc to limits.h
- Fix segv with memchr() and memcmp() overlapping page
- Implement POSIX fflush() behavior for reader streams
- Implement AT_SYMLINK_NOFOLLOW for utimensat() on WIN32
- Don't change read-only status of existing files on WIN32
- Correctly handle `0x[^[:xdigit:]]` case in strtol() functions

third_party/hiredis/alloc.c

@@ -41,7 +41,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/gdtoa/gdtoa.h"

third_party/hiredis/async.c

@@ -40,7 +40,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/gdtoa/gdtoa.h"

third_party/hiredis/dict.c

@@ -44,7 +44,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/gdtoa/gdtoa.h"

third_party/hiredis/hiredis.c

@@ -43,7 +43,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/gdtoa/gdtoa.h"

third_party/hiredis/net.c

@@ -70,7 +70,7 @@
 #include "libc/calls/weirdtypes.h"
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"
 #include "libc/limits.h"
 #include "libc/sysv/consts/_posix.h"
@@ -87,7 +87,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/gdtoa/gdtoa.h"

third_party/hiredis/read.c

@@ -41,7 +41,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/gdtoa/gdtoa.h"

third_party/hiredis/read.h

@@ -38,7 +38,7 @@
 #include "libc/calls/weirdtypes.h"
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h" /* for size_t */
 
 #define REDIS_ERR -1

third_party/hiredis/sds.c

@@ -36,7 +36,7 @@
 #include "libc/calls/weirdtypes.h"
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"
 #include "libc/calls/calls.h"
 #include "libc/stdio/dprintf.h"
@@ -47,7 +47,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/gdtoa/gdtoa.h"
@@ -1147,7 +1147,7 @@ void sds_free(void *ptr) { s_free(ptr); }
 #include "libc/calls/weirdtypes.h"
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"
 // MISSING #include "testhelp.h"
 // MISSING #include "limits.h"