Fix the build

libc/calls/mkstemp.c

@@ -26,6 +26,32 @@
 #include "libc/sysv/consts/o.h"
 #include "libc/sysv/errfuns.h"
 
+int _mkstemp(char *template, int oflags) {
+  uint64_t w;
+  int i, n, e, fd;
+  if ((n = strlen(template)) < 6 ||
+      READ16LE(template + n - 2) != READ16LE("XX") ||
+      READ32LE(template + n - 6) != READ32LE("XXXX")) {
+    return einval();
+  }
+  for (;;) {
+    w = _rand64();
+    for (i = 0; i < 6; ++i) {
+      template[n - 6 + i] = "0123456789abcdefghijklmnopqrstuvwxyz"[w % 36];
+      w /= 36;
+    }
+    e = errno;
+    if ((fd = open(template, O_RDWR | O_CREAT | O_EXCL | oflags, 0600)) != -1) {
+      return fd;
+    } else if (errno == EEXIST) {
+      errno = e;
+    } else {
+      template[0] = 0;
+      return fd;
+    }
+  }
+}
+
 /**
  * Creates temporary file name and file descriptor.
  *
@@ -52,27 +78,5 @@
  * @see tmpfd() if you don't need a path
  */
 int mkstemp(char *template) {
-  uint64_t w;
+  return _mkstemp(template, 0);
-  int i, n, e, fd;
-  if ((n = strlen(template)) < 6 ||
-      READ16LE(template + n - 2) != READ16LE("XX") ||
-      READ32LE(template + n - 6) != READ32LE("XXXX")) {
-    return einval();
-  }
-  for (;;) {
-    w = _rand64();
-    for (i = 0; i < 6; ++i) {
-      template[n - 6 + i] = "0123456789abcdefghijklmnopqrstuvwxyz"[w % 36];
-      w /= 36;
-    }
-    e = errno;
-    if ((fd = open(template, O_RDWR | O_CREAT | O_EXCL, 0600)) != -1) {
-      return fd;
-    } else if (errno == EEXIST) {
-      errno = e;
-    } else {
-      template[0] = 0;
-      return fd;
-    }
-  }
 }

libc/calls/tmpfd.c

@@ -27,6 +27,8 @@
 
 #define _O_TMPFILE 000020200000
 
+int _mkstemp(char *, int);
+
 /**
  * Returns file descriptor of open anonymous file, e.g.
  *
@@ -88,7 +90,7 @@ int tmpfd(void) {
   if (!(prog = program_invocation_short_name)) prog = "tmp";
   strlcat(path, prog, sizeof(path));
   strlcat(path, ".XXXXXX", sizeof(path));
-  if ((fd = mkstemp(path)) == -1) return -1;
+  if ((fd = _mkstemp(path, IsWindows() ? 0x00410000 : 0)) == -1) return -1;
   if (!IsWindows()) unassert(!unlink(path));
   return fd;
 }

libc/sysv/consts.sh

@@ -193,7 +193,7 @@ syscon	open	O_SEQUENTIAL				0			0			0			0			0			0			0			0x40000000		#  kNtFileFl
 syscon	open	O_COMPRESSED				0			0			0			0			0			0			0			0x20000000		#  kNtFileAttributeCompressed [SYNC libc/calls/open-nt.c]
 syscon	open	O_INDEXED				0			0			0			0			0			0			0			0x10000000		# !kNtFileAttributeNotContentIndexed [SYNC libc/calls/open-nt.c]
 syscon	open	O_CLOEXEC				0x00080000		0x00080000		0x01000000		0x01000000		0x00100000		0x00010000		0x00400000		0x00080000		# NT faked as Linux [SYNC libc/calls/open-nt.c]
-syscon	open	O_TMPFILE				0x00410000		0x00404000		0xffffffff		0xffffffff		0xffffffff		0xffffffff		0xffffffff		0x00410000		# please use tmpfd(); Linux 3.11+ (c. 2013) __O_TMPFILE | O_DIRECTORY; kNtFileAttributeTemporary|kNtFileFlagDeleteOnClose [SYNC libc/calls/open-nt.c]
+syscon	open	O_TMPFILE				0x00410000		0x00404000		0xffffffff		0xffffffff		0xffffffff		0xffffffff		0xffffffff		0xffffffff		# please use tmpfd(); Linux 3.11+ (c. 2013) __O_TMPFILE | O_DIRECTORY; kNtFileAttributeTemporary|kNtFileFlagDeleteOnClose [SYNC libc/calls/open-nt.c]
 syscon	open	O_SPARSE				0			0			0			0			0			0			0			0			# wut
 syscon	open	O_NONBLOCK				0x00000800		0x00000800		0x00000004		0x00000004		0x00000004		0x00000004		0x00000004		0x00000800		# bsd consensus
 syscon	open	O_ASYNC					0x00002000		0x00002000		0x00000040		0x00000040		0x00000040		0x00000040		0x00000040		0			# bsd consensus

libc/sysv/consts/O_TMPFILE.S

@@ -1,2 +1,2 @@
 #include "libc/sysv/consts/syscon.internal.h"
-.syscon open,O_TMPFILE,0x00410000,0x00404000,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0x00410000
+.syscon open,O_TMPFILE,0x00410000,0x00404000,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff