compat/winansi: support compiling with MSys2

diff --git a/compat/mingw.h b/compat/mingw.h
index 5e499cfb71a00ea81013c1ed21e9a5e9dc9e2544..10e2e4cacb75c34bfdc78bede36132c5498af811 100644 (file)
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -1,14 +1,26 @@
+#ifdef __MINGW64_VERSION_MAJOR
+#include <stdint.h>
+#include <wchar.h>
+typedef _sigset_t sigset_t;
+#endif
 #include <winsock2.h>
 #include <ws2tcpip.h>
 
+/* MinGW-w64 reports to have flockfile, but it does not actually have it. */
+#ifdef __MINGW64_VERSION_MAJOR
+#undef _POSIX_THREAD_SAFE_FUNCTIONS
+#endif
+
 /*
  * things that are not available in header files
  */
 
-typedef int pid_t;
 typedef int uid_t;
 typedef int socklen_t;
+#ifndef __MINGW64_VERSION_MAJOR
+typedef int pid_t;
 #define hstrerror strerror
+#endif
 
 #define S_IFLNK    0120000 /* Symbolic link */
 #define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
@@ -76,6 +88,14 @@ struct itimerval {
 };
 #define ITIMER_REAL 0
 
+struct utsname {
+       char sysname[16];
+       char nodename[1];
+       char release[16];
+       char version[16];
+       char machine[1];
+};
+
 /*
  * sanitize preprocessor namespace polluted by Windows headers defining
  * macros which collide with git local versions
@@ -92,14 +112,14 @@ static inline int symlink(const char *oldpath, const char *newpath)
 { errno = ENOSYS; return -1; }
 static inline int fchmod(int fildes, mode_t mode)
 { errno = ENOSYS; return -1; }
+#ifndef __MINGW64_VERSION_MAJOR
 static inline pid_t fork(void)
 { errno = ENOSYS; return -1; }
+#endif
 static inline unsigned int alarm(unsigned int seconds)
 { return 0; }
 static inline int fsync(int fd)
 { return _commit(fd); }
-static inline pid_t getppid(void)
-{ return 1; }
 static inline void sync(void)
 {}
 static inline uid_t getuid(void)
@@ -121,6 +141,12 @@ static inline int sigaddset(sigset_t *set, int signum)
 #define SIG_UNBLOCK 0
 static inline int sigprocmask(int how, const sigset_t *set, sigset_t *oldset)
 { return 0; }
+static inline pid_t getppid(void)
+{ return 1; }
+static inline pid_t getpgid(pid_t pid)
+{ return pid == 0 ? getpid() : pid; }
+static inline pid_t tcgetpgrp(int fd)
+{ return getpid(); }
 
 /*
  * simple adaptors
@@ -164,13 +190,16 @@ int pipe(int filedes[2]);
 unsigned int sleep (unsigned int seconds);
 int mkstemp(char *template);
 int gettimeofday(struct timeval *tv, void *tz);
+#ifndef __MINGW64_VERSION_MAJOR
 struct tm *gmtime_r(const time_t *timep, struct tm *result);
 struct tm *localtime_r(const time_t *timep, struct tm *result);
+#endif
 int getpagesize(void); /* defined in MinGW's libgcc.a */
 struct passwd *getpwuid(uid_t uid);
 int setitimer(int type, struct itimerval *in, struct itimerval *out);
 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 int link(const char *oldpath, const char *newpath);
+int uname(struct utsname *buf);
 
 /*
  * replacements of existing functions
@@ -197,6 +226,9 @@ FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 int mingw_fflush(FILE *stream);
 #define fflush mingw_fflush
 
+ssize_t mingw_write(int fd, const void *buf, size_t len);
+#define write mingw_write
+
 int mingw_access(const char *filename, int mode);
 #undef access
 #define access mingw_access
@@ -285,8 +317,10 @@ static inline int getrlimit(int resource, struct rlimit *rlp)
 /*
  * Use mingw specific stat()/lstat()/fstat() implementations on Windows.
  */
+#ifndef __MINGW64_VERSION_MAJOR
 #define off_t off64_t
 #define lseek _lseeki64
+#endif
 
 /* use struct stat with 64 bit st_size */
 #ifdef stat
@@ -359,8 +393,12 @@ static inline char *mingw_find_last_dir_sep(const char *path)
 int mingw_offset_1st_component(const char *path);
 #define offset_1st_component mingw_offset_1st_component
 #define PATH_SEP ';'
+#ifndef __MINGW64_VERSION_MAJOR
 #define PRIuMAX "I64u"
 #define PRId64 "I64d"
+#else
+#include <inttypes.h>
+#endif
 
 void mingw_open_html(const char *path);
 #define open_html mingw_open_html