Made building possible under OS X via CMake.

.gitignore

@@ -3,3 +3,6 @@ image.jpg
 *~
 *.swp
 *.o
+cmake_install.cmake
+CMakeFiles
+CMakeCache.txt

CMakeLists.txt

@@ -0,0 +1,36 @@
+cmake_minimum_required (VERSION 2.8)
+
+project (seamless)
+
+set (SOURCES
+  main.c
+  pixel_access.c
+  array_image.c
+  energy_functions.c
+)
+
+set_source_files_properties (main.c pixel_access.c array_image.c energy_functions.c
+  PROPERTIES COMPILE_FLAGS "-Wall -Werror -pedantic-errors -std=c99"
+)
+
+include (FindSDL)
+include (FindSDL_image)
+
+if (${APPLE})
+  set (SOURCES
+    ${SOURCES}
+    SDLMain.m
+  )
+endif (${APPLE})
+
+include_directories (
+  ${SDL_INCLUDE_DIR}
+  ${SDLIMAGE_INCLUDE_DIR}
+)
+
+add_executable (seamless ${SOURCES})
+
+target_link_libraries (seamless
+  ${SDL_LIBRARY}
+  ${SDLIMAGE_LIBRARY}
+)

Makefile

@@ -1,28 +1,271 @@
-OBJS = main.o array_image.o energy_functions.o pixel_access.o
+# CMAKE generated file: DO NOT EDIT!
+# Generated by "Unix Makefiles" Generator, CMake Version 2.8
 
-CFLAGS = -c -Wall -Werror -pedantic-errors -std=c99 -O3
-ifeq ($(DEBUG),1)
-  CFLAGS += -g
-endif
+# Default target executed when no arguments are given to make.
+default_target: all
+.PHONY : default_target
 
-CFLAGS += `sdl-config --cflags`
-LIBS = `sdl-config --libs` -lSDL_image
+#=============================================================================
+# Special targets provided by cmake.
 
-seamless: $(OBJS)
-	gcc $(LIBS) $(OBJS) -o seamless
+# Disable implicit rules so canoncical targets will work.
+.SUFFIXES:
 
-main.o: main.c array_image.h util.h
-	gcc $(CFLAGS) main.c
+# Remove some rules from gmake that .SUFFIXES does not remove.
+SUFFIXES =
 
-array_image.o: array_image.c array_image.h pixel_access.h
-	gcc $(CFLAGS) array_image.c
+.SUFFIXES: .hpux_make_needs_suffix_list
 
-energy_functions.o: energy_functions.c util.h array_image.h
-	gcc $(CFLAGS) energy_functions.c
+# Suppress display of executed commands.
+$(VERBOSE).SILENT:
 
-pixel_access.o: pixel_access.c pixel_access.h
-	gcc $(CFLAGS) pixel_access.c
+# A target that is always out of date.
+cmake_force:
+.PHONY : cmake_force
 
+#=============================================================================
+# Set environment variables for the build.
+
+# The shell in which to execute make rules.
+SHELL = /bin/sh
+
+# The CMake executable.
+CMAKE_COMMAND = "/Applications/CMake 2.8-3.app/Contents/bin/cmake"
+
+# The command to remove a file.
+RM = "/Applications/CMake 2.8-3.app/Contents/bin/cmake" -E remove -f
+
+# The program to use to edit the cache.
+CMAKE_EDIT_COMMAND = "/Applications/CMake 2.8-3.app/Contents/bin/ccmake"
+
+# The top-level source directory on which CMake was run.
+CMAKE_SOURCE_DIR = /Users/julian/Documents/seamless
+
+# The top-level build directory on which CMake was run.
+CMAKE_BINARY_DIR = /Users/julian/Documents/seamless
+
+#=============================================================================
+# Targets provided globally by CMake.
+
+# Special rule for the target edit_cache
+edit_cache:
+	@$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR) --cyan "Running CMake cache editor..."
+	"/Applications/CMake 2.8-3.app/Contents/bin/ccmake" -H$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR)
+.PHONY : edit_cache
+
+# Special rule for the target edit_cache
+edit_cache/fast: edit_cache
+.PHONY : edit_cache/fast
+
+# Special rule for the target rebuild_cache
+rebuild_cache:
+	@$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR) --cyan "Running CMake to regenerate build system..."
+	"/Applications/CMake 2.8-3.app/Contents/bin/cmake" -H$(CMAKE_SOURCE_DIR) -B$(CMAKE_BINARY_DIR)
+.PHONY : rebuild_cache
+
+# Special rule for the target rebuild_cache
+rebuild_cache/fast: rebuild_cache
+.PHONY : rebuild_cache/fast
+
+# The main all target
+all: cmake_check_build_system
+	$(CMAKE_COMMAND) -E cmake_progress_start /Users/julian/Documents/seamless/CMakeFiles /Users/julian/Documents/seamless/CMakeFiles/progress.marks
+	$(MAKE) -f CMakeFiles/Makefile2 all
+	$(CMAKE_COMMAND) -E cmake_progress_start /Users/julian/Documents/seamless/CMakeFiles 0
+.PHONY : all
+
+# The main clean target
 clean:
-	rm -f $(OBJS)
-	rm seamless
+	$(MAKE) -f CMakeFiles/Makefile2 clean
+.PHONY : clean
+
+# The main clean target
+clean/fast: clean
+.PHONY : clean/fast
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+# Prepare targets for installation.
+preinstall: all
+	$(MAKE) -f CMakeFiles/Makefile2 preinstall
+.PHONY : preinstall
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+# Prepare targets for installation.
+preinstall/fast:
+	$(MAKE) -f CMakeFiles/Makefile2 preinstall
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+
+# clear depends
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+.PHONY : depend
+
+#=============================================================================
+# Target rules for targets named seamless
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+# Build rule for target.
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+	$(MAKE) -f CMakeFiles/Makefile2 seamless
+.PHONY : seamless
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+# fast build rule for target.
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+	$(MAKE) -f CMakeFiles/seamless.dir/build.make CMakeFiles/seamless.dir/build
+.PHONY : seamless/fast
+
+SDLMain.o: SDLMain.m.o
+.PHONY : SDLMain.o
+
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+	$(MAKE) -f CMakeFiles/seamless.dir/build.make CMakeFiles/seamless.dir/SDLMain.m.o
+.PHONY : SDLMain.m.o
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+.PHONY : SDLMain.m.i
+
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+.PHONY : SDLMain.s
+
+# target to generate assembly for a file
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+	$(MAKE) -f CMakeFiles/seamless.dir/build.make CMakeFiles/seamless.dir/SDLMain.m.s
+.PHONY : SDLMain.m.s
+
+array_image.o: array_image.c.o
+.PHONY : array_image.o
+
+# target to build an object file
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+	$(MAKE) -f CMakeFiles/seamless.dir/build.make CMakeFiles/seamless.dir/array_image.c.o
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+	$(MAKE) -f CMakeFiles/seamless.dir/build.make CMakeFiles/seamless.dir/array_image.c.s
+.PHONY : array_image.c.s
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+energy_functions.o: energy_functions.c.o
+.PHONY : energy_functions.o
+
+# target to build an object file
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+	$(MAKE) -f CMakeFiles/seamless.dir/build.make CMakeFiles/seamless.dir/energy_functions.c.o
+.PHONY : energy_functions.c.o
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+.PHONY : energy_functions.i
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+
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+	$(MAKE) -f CMakeFiles/seamless.dir/build.make CMakeFiles/seamless.dir/pixel_access.c.o
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+.PHONY : pixel_access.c.s
+
+# Help Target
+help:
+	@echo "The following are some of the valid targets for this Makefile:"
+	@echo "... all (the default if no target is provided)"
+	@echo "... clean"
+	@echo "... depend"
+	@echo "... edit_cache"
+	@echo "... rebuild_cache"
+	@echo "... seamless"
+	@echo "... SDLMain.o"
+	@echo "... SDLMain.i"
+	@echo "... SDLMain.s"
+	@echo "... array_image.o"
+	@echo "... array_image.i"
+	@echo "... array_image.s"
+	@echo "... energy_functions.o"
+	@echo "... energy_functions.i"
+	@echo "... energy_functions.s"
+	@echo "... main.o"
+	@echo "... main.i"
+	@echo "... main.s"
+	@echo "... pixel_access.o"
+	@echo "... pixel_access.i"
+	@echo "... pixel_access.s"
+.PHONY : help
+
+
+
+#=============================================================================
+# Special targets to cleanup operation of make.
+
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+# No rule that depends on this can have commands that come from listfiles
+# because they might be regenerated.
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SDLMain.h

@@ -0,0 +1,16 @@
+/*   SDLMain.m - main entry point for our Cocoa-ized SDL app
+       Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
+       Non-NIB-Code & other changes: Max Horn <max@quendi.de>
+
+    Feel free to customize this file to suit your needs
+*/
+
+#ifndef _SDLMain_h_
+#define _SDLMain_h_
+
+#import <Cocoa/Cocoa.h>
+
+@interface SDLMain : NSObject
+@end
+
+#endif /* _SDLMain_h_ */