fix for mingw32/g++ 4.8.1

git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@998 d0cd1f9f-072b-0410-8dd7-cf729c803f20

api/Makefile.am

@@ -73,14 +73,16 @@ tesseract_CPPFLAGS += -DTESS_IMPORTS
 endif
 
 tesseract_LDADD = libtesseract.la
-if !OSX
-tesseract_LDADD += -lrt
-endif
+
 if USE_OPENCL
 tesseract_LDADD += $(OPENCL_LIB)
 endif
+
 if MINGW
 tesseract_LDADD += -lws2_32
-libtesseract_la_LDFLAGS += -no-undefined  -Wl,--as-needed -lws2_32
+libtesseract_la_LDFLAGS += -no-undefined -Wl,--as-needed -lws2_32
+endif
+if ADD_RT
+tesseract_LDADD += -lrt
 endif
 

api/baseapi.cpp

@@ -26,6 +26,25 @@
 #include <signal.h>
 #endif
 
+#if defined(_WIN32)
+#ifdef _MSC_VER
+#include "mathfix.h"
+#elif MINGW
+// workaround for stdlib.h with -std=c++11 for _splitpath and _MAX_FNAME
+#undef __STRICT_ANSI__ 
+#endif // _MSC_VER
+#include <stdlib.h>
+#include <windows.h>
+#else
+#include <dirent.h>
+#include <libgen.h>
+#include <string.h>
+#endif // _WIN32
+
+#if !defined(VERSION)
+#include "version.h"
+#endif
+
 #include "allheaders.h"
 
 #include "baseapi.h"
@@ -54,22 +73,6 @@
 #include "strngs.h"
 #include "openclwrapper.h"
 
-#ifdef _WIN32
-#include <windows.h>
-#include <stdlib.h>
-#ifdef _MSC_VER
-#include "mathfix.h"
-#endif // _MSC_VER
-#else
-#include <dirent.h>
-#include <libgen.h>
-#include <string.h>
-#endif // _WIN32
-
-#if !defined(VERSION)
-#include "version.h"
-#endif
-
 namespace tesseract {
 
 /** Minimum sensible image size to be worth running tesseract. */
@@ -370,7 +373,7 @@ void TessBaseAPI::GetAvailableLanguagesAsVector(
       }
       FindClose(handle);
     }
-#else
+#else  // _WIN32
     DIR *dir;
     struct dirent *dirent;
     char *dot;

ccmain/pagesegmain.cpp

@@ -20,10 +20,13 @@
 #ifdef _WIN32
 #ifndef __GNUC__
 #include <windows.h>
-#endif  /* __GNUC__ */
+#endif  // __GNUC__
+#ifndef unlink
+#include <io.h>
+#endif
 #else
 #include <unistd.h>
-#endif
+#endif // _WIN32
 #ifdef _MSC_VER
 #pragma warning(disable:4244)  // Conversion warnings
 #endif

ccstruct/pdblock.cpp

@@ -195,7 +195,7 @@ void PDBLK::plot(                //draw outline
     //              tprintf("Block %d bottom left is (%d,%d)\n",
     //                      serial,startpt.x(),startpt.y());
     char temp_buff[34];
-    #ifdef __UNIX__
+    #if defined(__UNIX__) || defined(MINGW)
     sprintf(temp_buff, INT32FORMAT, serial);
     #else
     ultoa (serial, temp_buff, 10);

ccstruct/polyblk.cpp

@@ -252,7 +252,7 @@ void POLY_BLOCK::plot(ScrollView* window, inT32 num) {
   if (num > 0) {
     window->TextAttributes("Times", 80, false, false, false);
     char temp_buff[34];
-    #ifdef __UNIX__
+    #if defined(__UNIX__) || defined(MINGW)
     sprintf(temp_buff, INT32FORMAT, num);
     #else
     ltoa (num, temp_buff, 10);

configure.ac

@@ -8,7 +8,7 @@
 
 AC_PREREQ(2.50)
 AC_INIT([tesseract], [3.03], [http://code.google.com/p/tesseract-ocr/issues/list])
-CXXFLAGS=""
+CXXFLAGS=${CXXFLAGS:-""}
 AC_CONFIG_MACRO_DIR([m4])
 AC_REVISION([$Revision$])
 AC_CONFIG_AUX_DIR(config)
@@ -78,21 +78,24 @@ case "${host_os}" in
     mingw32*)
         AC_DEFINE_UNQUOTED(MINGW,1,[This is a MinGW system])
         AM_CONDITIONAL(MINGW, true)
+		AM_CONDITIONAL(ADD_RT, false)
         AC_SUBST([AM_LDFLAGS], ['-Wl,-no-undefined -Wl,--as-needed'])
         ;;
     solaris*)
         LIBS="-lsocket -lnsl -lrt -lxnet"
+		AM_CONDITIONAL(ADD_RT, true)
         ;;
     *-*-darwin*)
         OPENCL_LIBS="-framework OpenCL"
         OPENCL_INC=""
-        AM_CONDITIONAL(OSX, true)
+        AM_CONDITIONAL(ADD_RT, false)
         ;;
     powerpc-*-darwin*)
         OPENCL_LIBS=""
         ;;
-     *)
+    *)
         # default
+		AM_CONDITIONAL(ADD_RT, true)
         ;;
 esac
 

opencl/openclwrapper.cpp

-#ifdef WIN32
+#ifdef _WIN32
 #include <Windows.h>
 #include <io.h>
 #else