Changes for UNIX port.

src/Makefile.am

@@ -0,0 +1,51 @@
+bin_PROGRAMS = celestia
+
+celestia_SOURCES = \
+	3dsmesh.cpp \
+	3dsmodel.cpp \
+	3dsread.cpp \
+	asterism.cpp \
+	astro.cpp \
+	bigfix.cpp \
+	body.cpp \
+	cmdparser.cpp \
+	color.cpp \
+	command.cpp \
+	config.cpp \
+	console.cpp \
+	constellation.cpp \
+	debug.cpp \
+	dispmap.cpp \
+	execution.cpp \
+	favorites.cpp \
+	filetype.cpp \
+	galaxy.cpp \
+	glext.cpp \
+	glutmain.cpp \
+	meshmanager.cpp \
+	observer.cpp \
+	orbit.cpp \
+	overlay.cpp \
+	parser.cpp \
+	perlin.cpp \
+	regcombine.cpp \
+	render.cpp \
+	resmanager.cpp \
+	selection.cpp \
+	simulation.cpp \
+	solarsys.cpp \
+	spheremesh.cpp \
+	star.cpp \
+	stardb.cpp \
+	starname.cpp \
+	stellarclass.cpp \
+	texfont.cpp \
+	texmanager.cpp \
+	texture.cpp \
+	tokenizer.cpp \
+	univcoord.cpp \
+	util.cpp \
+	vertexlist.cpp \
+	visstars.cpp \
+	glutmain.cpp
+

src/gl.h

@@ -2,7 +2,7 @@
 //
 // Why is this file necessary?  Because Microsoft requires us to include
 // windows.h before including the GL headers, even though GL is a
-// cross-platform API.  So, we encapsulate the resulting ifdef nonsense
+// cross-platform API.  So, we encapsulate the resulting #ifdef nonsense
 // in this file.
 // 
 // Copyright (C) 2001, Chris Laurel <claurel@shatters.net>
@@ -15,6 +15,8 @@
 #ifndef _GL_H_
 #define _GL_H_
 
+#ifdef _WIN32
+
 #ifdef _MSC_VER
 #if _MSC_VER > 1000
 #pragma once
@@ -25,6 +27,8 @@
 #include <windows.h>
 #endif // _MSC_VER
 
+#endif
+
 #include <GL/gl.h>
 #include <GL/glu.h>