Fix compile with cygwin

The underscores are wrong. The comment is also correct.

Also remove the configure.ac option. Otherwise it tries to compile the
windows unicode stuff which POSIX(cygwin) does not understand.
Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>

configure.ac

@@ -185,7 +185,7 @@ AM_CONDITIONAL(FLaC__CPU_PPC_SPE, test "x$abi_spe" = xtrue)
 
 os_is_windows=no
 case "$host" in
-	*-*-cygwin|*mingw*)
+	*mingw*)
 		CPPFLAGS="-D__MSVCRT_VERSION__=0x0601 $CPPFLAGS"
 		os_is_windows=yes
 		;;

include/share/compat.h

@@ -98,7 +98,7 @@
 #define FLAC__STRNCASECMP strncasecmp
 #endif
 
-#if defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__ || defined __EMX__
+#if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
 #include <io.h> /* for _setmode(), chmod() */
 #include <fcntl.h> /* for _O_BINARY */
 #else

src/libFLAC/stream_decoder.c

@@ -1253,9 +1253,6 @@ FILE *get_binary_stdin_(void)
 	 */
 #if defined _MSC_VER || defined __MINGW32__
 	_setmode(_fileno(stdin), _O_BINARY);
-#elif defined __CYGWIN__
-	/* almost certainly not needed for any modern Cygwin, but let's be safe... */
-	setmode(_fileno(stdin), _O_BINARY);
 #elif defined __EMX__
 	setmode(fileno(stdin), O_BINARY);
 #endif

src/libFLAC/stream_encoder.c

@@ -4540,9 +4540,6 @@ FILE *get_binary_stdout_(void)
 	 */
 #if defined _MSC_VER || defined __MINGW32__
 	_setmode(_fileno(stdout), _O_BINARY);
-#elif defined __CYGWIN__
-	/* almost certainly not needed for any modern Cygwin, but let's be safe... */
-	setmode(_fileno(stdout), _O_BINARY);
 #elif defined __EMX__
 	setmode(fileno(stdout), O_BINARY);
 #endif

src/share/grabbag/file.c

@@ -29,7 +29,7 @@
 #include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
 #include <utime.h> /* for utime() */
 #endif
-#if defined __CYGWIN__ || defined __EMX__
+#if defined __EMX__
 #include <io.h> /* for setmode(), O_BINARY */
 #include <fcntl.h> /* for _O_BINARY */
 #endif
@@ -164,9 +164,6 @@ FILE *grabbag__file_get_binary_stdin(void)
 	 */
 #if defined _MSC_VER || defined __MINGW32__
 	_setmode(_fileno(stdin), _O_BINARY);
-#elif defined __CYGWIN__
-	/* almost certainly not needed for any modern Cygwin, but let's be safe... */
-	setmode(_fileno(stdin), _O_BINARY);
 #elif defined __EMX__
 	setmode(fileno(stdin), O_BINARY);
 #endif
@@ -182,9 +179,6 @@ FILE *grabbag__file_get_binary_stdout(void)
 	 */
 #if defined _MSC_VER || defined __MINGW32__
 	_setmode(_fileno(stdout), _O_BINARY);
-#elif defined __CYGWIN__
-	/* almost certainly not needed for any modern Cygwin, but let's be safe... */
-	setmode(_fileno(stdout), _O_BINARY);
 #elif defined __EMX__
 	setmode(fileno(stdout), O_BINARY);
 #endif