Index: src/color.c
--- src/color.c.orig	2016-11-14 21:11:59.000000000 +0100
+++ src/color.c	2017-09-04 11:04:00.434955000 +0200
@@ -62,7 +62,7 @@
 
 
 void
-init_color()
+gnuplot_init_color()
 {
   /* initialize global palette */
   sm_palette.colorFormulae = 37;  /* const */
Index: src/color.h
--- src/color.h.orig	2013-10-22 00:31:59.000000000 +0200
+++ src/color.h	2017-09-04 11:04:00.435103000 +0200
@@ -217,7 +217,7 @@
 /* ROUTINES */
 
 
-void init_color __PROTO((void));  /* call once to initialize variables */
+void gnuplot_init_color __PROTO((void));  /* call once to initialize variables */
 
 
 /*
Index: src/command.c
--- src/command.c.orig	2017-08-30 20:48:26.000000000 +0200
+++ src/command.c	2017-09-04 11:09:20.185398000 +0200
@@ -138,6 +138,8 @@
 int vms_ktid;			/* key table id, for translating keystrokes */
 #endif /* VMS */
 
+#include <sys/types.h>
+#include <sys/wait.h>
 
 /* static prototypes */
 static void command __PROTO((void));
Index: src/set.c
--- src/set.c.orig	2017-08-13 07:47:14.000000000 +0200
+++ src/set.c	2017-09-04 11:04:00.435797000 +0200
@@ -3284,7 +3284,7 @@
     free_at(sm_palette.Afunc.at);
     free_at(sm_palette.Bfunc.at);
     free_at(sm_palette.Cfunc.at);
-    init_color();
+    gnuplot_init_color();
     pm3d_last_set_palette_mode = SMPAL_COLOR_MODE_NONE;
 }