diff --git a/common/common.h b/common/common.h
index 26f49fb..39a6df7 100644
--- a/common/common.h
+++ b/common/common.h
@@ -177,7 +177,11 @@ void COM_StripExtension (char *in, char *out);
 void COM_FileBase (char *in, char *out);
 void COM_DefaultExtension (char *path, char *extension);
 
+#ifdef __GNUC__
+char	*va(char *format, ...) __attribute__((format (printf, 1, 2)));
+#else
 char	*va(char *format, ...);
+#endif
 // does a varargs printf into a temp buffer
 
 
diff --git a/common/console.h b/common/console.h
index 32eca1e..db982a5 100644
--- a/common/console.h
+++ b/common/console.h
@@ -62,9 +62,15 @@ void Con_CheckResize (void);
 void Con_Init (void);
 void Con_DrawConsole (int lines);
 void Con_Print (char *txt);
+#ifdef __GNUC__
+void Con_Printf (char *fmt, ...) __attribute__((format (printf, 1, 2)));
+void Con_DPrintf (char *fmt, ...) __attribute__((format (printf, 1, 2)));
+void Con_SafePrintf (char *fmt, ...) __attribute__((format (printf, 1, 2)));
+#else
 void Con_Printf (char *fmt, ...);
 void Con_DPrintf (char *fmt, ...);
 void Con_SafePrintf (char *fmt, ...);
+#endif
 void Con_Clear_f (void);
 void Con_DrawNotify (void);
 void Con_ClearNotify (void);
diff --git a/common/gl_rmain.c b/common/gl_rmain.c
index be0ba4c..ff01e46 100644
--- a/common/gl_rmain.c
+++ b/common/gl_rmain.c
@@ -595,7 +595,7 @@ R_SetupAliasBlendedFrame (int frame, aliashdr_t *paliashdr, entity_t *e)
 	{
 		e->frame_interval = paliashdr->frames[frame].interval;
 		pose += (int)(cl.time / e->frame_interval) % numposes;
-		Con_DPrintf ("0x%x\n", e);
+		Con_DPrintf ("%p\n", e);
 		Con_DPrintf ("1st: pose = %i  pose2 = %i  pose1 = %i\n",
 				pose, e->pose2, e->pose1);
 	} else
diff --git a/common/snd_alsa.c b/common/snd_alsa.c
index b8fc7d8..73cd314 100644
--- a/common/snd_alsa.c
+++ b/common/snd_alsa.c
@@ -248,7 +248,7 @@ qboolean SNDDMA_Init(void)
     Con_Printf("%5d samplebits\n", shm->samplebits);
     Con_Printf("%5d submission_chunk\n", shm->submission_chunk);
     Con_Printf("%5d speed\n", shm->speed);
-    Con_Printf("0x%x dma buffer\n", shm->buffer);
+    Con_Printf("0x%x dma buffer\n", (int)shm->buffer);
 	Con_Printf("%5d total_channels\n", total_channels);
 
 	snd_inited=1;
diff --git a/common/snd_dma.c b/common/snd_dma.c
index 8abd499..5839cb9 100644
--- a/common/snd_dma.c
+++ b/common/snd_dma.c
@@ -144,7 +144,7 @@ void S_SoundInfo_f(void)
     Con_Printf("%5d samplebits\n", shm->samplebits);
     Con_Printf("%5d submission_chunk\n", shm->submission_chunk);
     Con_Printf("%5d speed\n", shm->speed);
-    Con_Printf("0x%x dma buffer\n", shm->buffer);
+    Con_Printf("0x%x dma buffer\n", (int)shm->buffer);
 	Con_Printf("%5d total_channels\n", total_channels);
 }