make recompile for vers/git state change minimal

Make a `version.c` with `const char*` variables to store the version
strings used by other files, to make recompiles slightly faster when the
git state changes.

Signed-off-by: Rafael Kitover <rkitover@gmail.com>

CMakeLists.txt

@@ -809,6 +809,7 @@ set(
     src/sdl/expr.cpp
     src/sdl/exprNode.cpp
     src/sdl/expr-lex.cpp
+    src/common/version.c
 )
 
 set(
@@ -818,6 +819,7 @@ set(
     src/sdl/inputSDL.h
     src/sdl/expr.cpp.h
     src/sdl/exprNode.h
+    src/common/version_c.h
 )
 
 set(

src/common/version.c

@@ -0,0 +1,6 @@
+#include "version_c.h"
+#include "version.h"
+
+const char* vba_name_and_subversion = VBA_NAME_AND_SUBVERSION;
+
+const char* vbam_version = VERSION;

src/common/version_c.h

@@ -0,0 +1,8 @@
+#ifndef VBAM_VERSION_C_H
+#define VBAM_VERSION_C_H
+
+extern const char* vba_name_and_subversion;
+
+extern const char* vbam_version;
+
+#endif /* VBAM_VERSION_C_H */

src/sdl/SDL.cpp

@@ -41,7 +41,7 @@
 
 #include <time.h>
 
-#include "version.h"
+#include "../common/version_c.h"
 
 #include "SDL.h"
 
@@ -1521,7 +1521,7 @@ void SetHomeDataDir()
 
 int main(int argc, char** argv)
 {
-    fprintf(stdout, "%s\n", VBA_NAME_AND_SUBVERSION);
+    fprintf(stdout, "%s\n", vba_name_and_subversion);
 
     home = argv[0];
     SetHome(home);

src/version.h.in

@@ -17,6 +17,9 @@
 // along with this program; if not, write to the Free Software Foundation,
 // Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
+#ifndef VBAM_VERSION_H
+#define VBAM_VERSION_H
+
 #define VBA_NAME "VisualBoyAdvance-M"
 #define VBA_CURRENT_VERSION "@VERSION@"
 
@@ -46,3 +49,5 @@
 
 #define VER_FILEVERSION_STR VERSION
 #define VER_FILEVERSION @WIN_VERSION@
+
+#endif /* VBAM_VERSION_H */

src/wx/CMakeLists.txt

@@ -668,6 +668,7 @@ set(
     cmd-evtable.h
     # icon File
     xrc/vbam.xpm
+    ../common/version.c
 )
 
 if(APPLE)
@@ -693,6 +694,7 @@ set(
     ../sdl/text.h
     # from external source with minor modifications
     widgets/wx/checkedlistctrl.h
+    ../common/version_c.h
 )
 
 set(

src/wx/cmdevents.cpp

@@ -10,7 +10,7 @@
 #include <wx/wfstream.h>
 #include <wx/msgdlg.h>
 
-#include "version.h"
+#include "../common/version_c.h"
 #include "../common/ConfigManager.h"
 #include "../gb/gbPrinter.h"
 #include "../gba/agbprint.h"
@@ -2723,22 +2723,14 @@ EVT_HANDLER(Translate, "Translations")
     wxLaunchDefaultBrowser(wxT("http://www.transifex.com/projects/p/vba-m"));
 }
 
+#include "../common/version_c.h"
+
 // was About
 EVT_HANDLER(wxID_ABOUT, "About...")
 {
     wxAboutDialogInfo ai;
     ai.SetName(wxT("VisualBoyAdvance-M"));
-    wxString version = wxT("");
-#ifndef FINAL_BUILD
-#ifndef VERSION
-# define VERSION "git"
-#endif
-
-    if (!version.IsEmpty())
-        version = version + wxT("-");
-
-    version = version + wxT(VERSION);
-#endif
+    wxString version(vbam_version);
     ai.SetVersion(version);
     // setting website, icon, license uses custom aboutbox on win32 & macosx
     // but at least win32 standard about is nothing special

src/wx/panel.cpp

@@ -5,7 +5,7 @@
 #include <wx/dcbuffer.h>
 #include <SDL_joystick.h>
 
-#include "version.h"
+#include "../common/version_c.h"
 #include "../common/ConfigManager.h"
 #include "../common/Patch.h"
 #include "../gb/gbPrinter.h"
@@ -424,9 +424,8 @@ void GameArea::SetFrameTitle()
     }
 
     tit.append(wxT("VisualBoyAdvance-M "));
-#ifndef FINAL_BUILD
-    tit.append(_(VERSION));
-#endif
+    tit.append(vbam_version);
+
 #ifndef NO_LINK
     int playerId = GetLinkPlayerId();