half-hearted improvements to Windows compilability

array/iarray_allocate.c

@@ -1,6 +1,6 @@
 #include "likely.h"
 #include <stdlib.h>
-#ifndef __MINGW32__
+#ifndef _WIN32
 #include <fcntl.h>
 #include <sys/mman.h>
 #include <unistd.h>
@@ -13,7 +13,7 @@
 #endif
 
 static iarray_page* new_page(size_t pagesize) {
-#ifdef __MINGW32__
+#ifdef _WIN32
   void* x=malloc(pagesize);
   if (x==0) return 0;
 #else
@@ -49,7 +49,7 @@ void* iarray_allocate(iarray* ia,size_t pos) {
     p=&(*p)->next;
   }
   if (newpage)
-#ifdef __MINGW32__
+#ifdef _WIN32
     free(newpage);
 #else
     munmap(newpage,ia->bytesperpage);

array/iarray_free.c

@@ -1,14 +1,15 @@
 #include <stdlib.h>
-#ifndef __MINGW32__
+#ifndef _WIN32
 #include <sys/mman.h>
-#endif
+#else
 #include <unistd.h>
+#endif
 #include "iarray.h"
 
 static void freechain(iarray_page* p,size_t pagesize) {
   while (p) {
     iarray_page* n=p->next;
-#ifdef __MINGW32__
+#ifdef _WIN32
     free(p);
 #else
     munmap(p,pagesize);

fmt/fmt_httpdate.c

@@ -11,7 +11,13 @@ static unsigned int fmt_2digits(char* dest,int i) {
 size_t fmt_httpdate(char* dest,time_t t) {
   static const char days[] = "SunMonTueWedThuFriSat";
   static const char months[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
+#ifdef _WIN32
+  struct tm tmp;
+  struct tm* x=&tmp;
+  gmtime_s(&tmp,&t);	// can't recover from when this fails
+#else
   struct tm* x=gmtime(&t);
+#endif
   size_t i;
 
   if (dest==0) return 29;

fmt/fmt_iso8601.c

@@ -9,7 +9,13 @@ static unsigned int fmt_2digits(char* dest,int i) {
 }
 
 size_t fmt_iso8601(char* dest,time_t t) {
+#ifdef _WIN32
+  struct tm tmp;
+  struct tm* x=&tmp;
+  gmtime_s(&tmp,&t);	// can't recover from when this fails
+#else
   struct tm* x=gmtime(&t);
+#endif
   size_t i;
 
   if (dest==0) return sizeof("2014-05-27T19:22:16Z")-1;

mmap/mmap_private.c

@@ -1,15 +1,15 @@
 #include <sys/types.h>
-#include <unistd.h>
-#ifdef __MINGW32__
+#ifdef _WIN32
 #include <windows.h>
 #else
+#include <unistd.h>
 #include <sys/mman.h>
-#endif
 #include "open.h"
+#endif
 #include "mmap.h"
 
 char* mmap_private(const char* filename,size_t * filesize) {
-#ifdef __MINGW32__
+#ifdef _WIN32
   HANDLE fd,m;
   char* map;
   fd=CreateFile(filename,GENERIC_WRITE|GENERIC_READ,FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);

mmap/mmap_read.c

@@ -1,15 +1,15 @@
 #include <sys/types.h>
-#include <unistd.h>
-#ifdef __MINGW32__
+#ifdef _WIN32
 #include <windows.h>
 #else
+#include <unistd.h>
 #include <sys/mman.h>
-#endif
 #include "open.h"
+#endif
 #include "mmap.h"
 
 extern const char* mmap_read(const char* filename,size_t * filesize) {
-#ifdef __MINGW32__
+#ifdef _WIN32
   HANDLE fd,m;
   char* map;
   fd=CreateFile(filename,GENERIC_READ,FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);

mmap/mmap_readat.c

@@ -2,18 +2,17 @@
 #define _ATFILE_SOURCE
 
 #include <sys/types.h>
-#include <unistd.h>
-#ifndef __MINGW32__
+#ifndef _WIN32
 #include <sys/stat.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/mman.h>
-#endif
 #include "open.h"
+#endif
 #include "mmap.h"
 
 extern const char* mmap_readat(const char* filename,size_t * filesize,int dirfd) {
-#ifdef __MINGW32__
+#ifdef _WIN32
   return 0;
 #else
   int fd=openat(dirfd,filename,O_RDONLY);

mmap/mmap_shared.c

@@ -1,15 +1,15 @@
 #include <sys/types.h>
-#include <unistd.h>
-#ifdef __MINGW32__
+#ifdef _WIN32
 #include <windows.h>
 #else
+#include <unistd.h>
 #include <sys/mman.h>
-#endif
 #include "open.h"
+#endif
 #include "mmap.h"
 
 extern char* mmap_shared(const char* filename,size_t * filesize) {
-#ifdef __MINGW32__
+#ifdef _WIN32
   HANDLE fd,m;
   char* map;
   fd=CreateFile(filename,GENERIC_READ|GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);

mmap/mmap_unmap.c

@@ -1,15 +1,15 @@
 #include <sys/types.h>
-#include <unistd.h>
-#ifdef __MINGW32__
+#ifdef _WIN32
 #include <windows.h>
 #else
+#include <unistd.h>
 #include <sys/mman.h>
-#endif
 #include "open.h"
+#endif
 #include "mmap.h"
 
 int mmap_unmap(const char* mapped,size_t maplen) {
-#ifdef __MINGW32__
+#ifdef _WIN32
   (void)maplen;
   return UnmapViewOfFile(mapped)?0:-1;
 #else