build: replace glob() check and assume it's always in POSIX

POSIX requires glob(), so no need to check for it. Together with the
fact that we can emulate glob() on Windows, glob() is always available.

demux/demux_mf.c

@@ -115,7 +115,6 @@ static mf_t *open_mf_pattern(void *talloc_ctx, struct mp_log *log, char *filenam
 
     char *fname = talloc_size(mf, strlen(filename) + 32);
 
-#if HAVE_GLOB || HAVE_GLOB_WIN32_REPLACEMENT
     if (!strchr(filename, '%')) {
         strcpy(fname, filename);
         if (!strchr(filename, '*'))
@@ -138,7 +137,6 @@ static mf_t *open_mf_pattern(void *talloc_ctx, struct mp_log *log, char *filenam
         globfree(&gg);
         goto exit_mf;
     }
-#endif
 
     mp_info(log, "search expr: %s\n", filename);
 

options/parse_commandline.c

@@ -103,7 +103,7 @@ static bool split_opt(struct parse_state *p)
     return false;
 }
 
-#if defined(__MINGW32__) && (HAVE_GLOB || HAVE_GLOB_WIN32_REPLACEMENT)
+#ifdef __MINGW32__
 static void process_non_option(struct playlist *files, const char *arg)
 {
     glob_t gg;

osdep/io.h

@@ -28,7 +28,7 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 
-#if HAVE_GLOB
+#if HAVE_POSIX
 #include <glob.h>
 #endif
 

wscript

@@ -208,13 +208,9 @@ iconv support use --disable-iconv.",
         'func': check_true,
         'deps_any': ['posix-spawn', 'mingw'],
     }, {
-        'name': 'glob',
-        'desc': 'glob()',
-        'func': check_statement('glob.h', 'glob("filename", 0, 0, 0)')
-    }, {
-        'name': 'glob-win32-replacement',
+        'name': 'glob-win32',
         'desc': 'glob() win32 replacement',
-        'deps_neg': [ 'glob' ],
+        'deps_neg': [ 'posix' ],
         'deps_any': [ 'os-win32', 'os-cygwin' ],
         'func': check_true
     }, {

wscript_build.py

@@ -432,7 +432,7 @@ def build(ctx):
         ( "osdep/path-unix.c"),
         ( "osdep/path-win.c",                    "os-win32" ),
         ( "osdep/path-win.c",                    "os-cygwin" ),
-        ( "osdep/glob-win.c",                    "glob-win32-replacement" ),
+        ( "osdep/glob-win.c",                    "glob-win32" ),
         ( "osdep/w32_keyboard.c",                "os-win32" ),
         ( "osdep/w32_keyboard.c",                "os-cygwin" ),
         ( "osdep/windows_utils.c",               "win32" ),