minor engine cleanup.

- enclose glbuild.h in #idndef ... sentinels
- engine.c: remove unused variable 'pageoffset', make 'lastx' static
- formatting

git-svn-id: https://svn.eduke32.com/eduke32@2272 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/eduke32/build/include/glbuild.h

@@ -1,3 +1,7 @@
+
+#ifndef BGLBUILD_H_INCLUDED_
+#define BGLBUILD_H_INCLUDED_
+
 #ifdef USE_OPENGL
 
 #ifdef RENDERTYPEWIN
@@ -340,3 +344,5 @@ int32_t unloadgldriver(void);
 
 int32_t loadglulibrary(const char *driver);
 int32_t unloadglulibrary(void);
+
+#endif

polymer/eduke32/build/src/engine.c

@@ -2161,11 +2161,15 @@ int32_t globalx, globaly, globalz;
 
 int16_t sectorborder[256], sectorbordercnt;
 static char tablesloaded = 0;
-int32_t pageoffset, ydim16, qsetmode = 0;
+int32_t ydim16, qsetmode = 0;
 int32_t startposx, startposy, startposz;
 int16_t startang, startsectnum;
 int16_t pointhighlight=-1, linehighlight=-1, highlightcnt=0;
+#ifndef OBSOLETE_RENDMODES
+static int32_t lastx[MAXYDIM];
+#else
 int32_t lastx[MAXYDIM];
+#endif
 char *transluc = NULL, paletteloaded = 0;
 
 int32_t halfxdim16, midydim16;

polymer/eduke32/build/src/engine_priv.h

@@ -17,6 +17,9 @@
 # define YAX_MAXDRAWS 8
 #endif
 
+//#define OBSOLETE_RENDMODES
+
+
 extern uint8_t **basepaltableptr;
 extern uint8_t basepalcount;
 extern uint8_t curbasepal;
@@ -54,7 +57,9 @@ extern char inpreparemirror;
 extern int32_t curbrightness, gammabrightness;
 extern char britable[16][256];
 extern char picsiz[MAXTILES];
+#ifdef OBSOLETE_RENDMODES
 extern int32_t lastx[MAXYDIM];
+#endif
 extern char *transluc;
 extern int16_t sectorborder[256], sectorbordercnt;
 extern int32_t qsetmode;

polymer/eduke32/build/src/polymost.c

@@ -91,8 +91,6 @@ Low priority:
 extern int32_t filelength(int h); // kplib.c
 #endif
 
-//#define OBSOLETE_RENDMODES
-
 extern char textfont[2048], smalltextfont[2048];
 
 int32_t rendmode=0;