diff --git a/.cproject b/.cproject
index 181d6ea..de8d93c 100644
--- a/.cproject
+++ b/.cproject
@@ -67,7 +67,6 @@
 		<buildTargets>
 			<target name="clean" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>clean</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
@@ -75,12 +74,19 @@
 			</target>
 			<target name="all" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>all</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments/>
+				<buildTarget>package</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 		</buildTargets>
 	</storageModule>
 </cproject>
diff --git a/Makefile b/Makefile
index da23e51..008612c 100644
--- a/Makefile
+++ b/Makefile
@@ -17,20 +17,29 @@
 #      (at your option) any later version.
 #
 #******************************************************************************
-OS = $(shell uname -s)
-ifneq (,$(findstring MINGW,$(OS)))
-RES  = obj/png2bestpal_stdres.res
-EXEEXT = .exe
+ifneq (,$(findstring Windows,$(OS)))
+  RES  = obj/png2bestpal_stdres.res
+  EXEEXT = .exe
+  PKGFMT = zip
+  PKGOS = win
 else
-RES  = 
-EXEEXT =
+  RES  = 
+  EXEEXT =
+  PKGFMT = tar.gz
+  PKGOS = lin
 endif
+
 CPP  = g++
 CC   = gcc
 WINDRES = windres
 DLLTOOL = dlltool
 RM = rm -f
+MV = mv -f
+CP = cp -f
 MKDIR = mkdir -p
+ECHO = @echo
+TAR = tar
+ZIP = zip
 
 BIN  = bin/png2bestpal$(EXEEXT)
 LIBS =
@@ -38,6 +47,7 @@ OBJS = \
 obj/png2bestpal.o \
 $(RES)
 
+GENSRC   = obj/ver_defs.h
 LINKOBJ  = $(OBJS)
 LINKLIB = -static -lpng -lz -lm
 INCS = 
@@ -55,9 +65,12 @@ WARNFLAGS = -Wall -Wno-sign-compare -Wno-unused-parameter
 CXXFLAGS = $(CXXINCS) -std=c++11 -c -fmessage-length=0 $(WARNFLAGS) $(DEPFLAGS) $(OPTFLAGS)
 CFLAGS = $(INCS) -c -fmessage-length=0 $(WARNFLAGS) $(DEPFLAGS) $(OPTFLAGS)
 LDFLAGS = $(LINKLIB) $(OPTFLAGS) $(DBGFLAGS) $(LINKFLAGS)
-RM = rm -f
 
-.PHONY: all all-before all-after clean clean-custom
+# load program version
+include version.mk
+VER_STRING = $(VER_MAJOR).$(VER_MINOR).$(VER_RELEASE).$(VER_BUILD)
+
+.PHONY: all all-before all-after clean clean-custom package pkg-before zip tar.gz
 
 all: all-before $(BIN) all-after
 
@@ -65,30 +78,67 @@ all-before:
 	$(MKDIR) obj bin
 
 clean: clean-custom
-	-${RM} $(OBJS) $(BIN) $(LIBS)
-	-@echo ' '
+	-${RM} $(OBJS) $(GENSRC) $(BIN) $(LIBS)
+	-${RM} pkg/*
+	-$(ECHO) ' '
 
 $(BIN): $(OBJS) $(LIBS)
-	@echo 'Building target: $@'
+	-$(ECHO) 'Building target: $@'
 	$(CPP) $(LINKOBJ) -o "$@" $(LDFLAGS)
-	@echo 'Finished building target: $@'
-	@echo ' '
+	-$(ECHO) 'Finished building target: $@'
+	-$(ECHO) ' '
 
-obj/%.o: src/%.cpp
-	@echo 'Building file: $<'
+obj/%.o: src/%.cpp $(GENSRC)
+	-$(ECHO) 'Building file: $<'
 	$(CPP) $(CXXFLAGS) -o"$@" "$<"
-	@echo 'Finished building: $<'
-	@echo ' '
+	-$(ECHO) 'Finished building: $<'
+	-$(ECHO) ' '
 
-obj/%.o: src/%.c
-	@echo 'Building file: $<'
+obj/%.o: src/%.c $(GENSRC)
+	-$(ECHO) 'Building file: $<'
 	$(CC) $(CFLAGS) -o"$@" "$<"
-	@echo 'Finished building: $<'
-	@echo ' '
+	-$(ECHO) 'Finished building: $<'
+	-$(ECHO) ' '
 
-obj/%.res: res/%.rc
-	@echo 'Building resource: $<'
+obj/%.res: res/%.rc $(GENSRC)
+	-$(ECHO) 'Building resource: $<'
 	$(WINDRES) -i "$<" --input-format=rc -o "$@" -O coff 
-	@echo 'Finished building: $<'
-	@echo ' '
+	-$(ECHO) 'Finished building: $<'
+	-$(ECHO) ' '
+
+obj/ver_defs.h: version.mk Makefile
+	$(ECHO) \#define VER_MAJOR   $(VER_MAJOR) > "$(@D)/tmp"
+	$(ECHO) \#define VER_MINOR   $(VER_MINOR) >> "$(@D)/tmp"
+	$(ECHO) \#define VER_RELEASE $(VER_RELEASE) >> "$(@D)/tmp"
+	$(ECHO) \#define VER_BUILD   $(VER_BUILD) >> "$(@D)/tmp"
+	$(ECHO) \#define VER_STRING  \"$(VER_STRING)\" >> "$(@D)/tmp"
+	$(ECHO) \#define PACKAGE_SUFFIX  \"$(PACKAGE_SUFFIX)\" >> "$(@D)/tmp"
+	$(MV) "$(@D)/tmp" "$@"
+
+package: pkg-before $(PKGFMT)
+
+pkg-before:
+	-${RM} pkg/*
+	$(MKDIR) pkg
+	$(CP) bin/* pkg/
+	$(CP) docs/*_readme.txt pkg/
+
+pkg/%.tar.gz: pkg-before
+	-$(ECHO) 'Creating package: $<'
+	cd $(@D); \
+	$(TAR) --owner=0 --group=0 --exclude=*.tar.gz --exclude=*.zip -zcf "$(@F)" .
+	-$(ECHO) 'Finished creating: $<'
+	-$(ECHO) ' '
+
+tar.gz: pkg/png2bestpal-$(subst .,_,$(VER_STRING))-$(PACKAGE_SUFFIX)-$(PKGOS).tar.gz
+
+pkg/%.zip: pkg-before
+	-$(ECHO) 'Creating package: $<'
+	cd $(@D); \
+	$(ZIP) -x*.tar.gz -x*.zip -9 -r "$(@F)" .
+	-$(ECHO) 'Finished creating: $<'
+	-$(ECHO) ' '
+
+zip: pkg/png2bestpal-$(subst .,_,$(VER_STRING))-$(PACKAGE_SUFFIX)-$(PKGOS).zip
+
 #******************************************************************************
diff --git a/docs/png2bestpal_readme.txt b/docs/png2bestpal_readme.txt
new file mode 100644
index 0000000..cc84db5
--- /dev/null
+++ b/docs/png2bestpal_readme.txt
@@ -0,0 +1,11 @@
+
+Best 8bpp palette selector for a series of PNG files (Png2bestPal)
+  Created by Tomasz Lis; GNU General Public License
+----------------------------------------
+usage:
+
+    png2bestpal.exe [options] <filename>
+where <filename> should be the input BMP file, and [options] are:
+    -v,--verbose             Verbose console output mode
+    -m<file>,--palmap<file>  Static palette entries mapping file name
+    -o<file>,--output<file>  Output PAL file name
diff --git a/src/png2bestpal_version.h b/src/png2bestpal_version.h
index 5e87add..974dc23 100644
--- a/src/png2bestpal_version.h
+++ b/src/png2bestpal_version.h
@@ -20,11 +20,13 @@
 #define PNG2BESTPAL_VERSION_H
 
 /* Version definitions */
-#define VER_MAJOR         1
-#define VER_MINOR         0
-#define VER_RELEASE       0
-#define VER_BUILD         1
-#define VER_STRING        "1.0.0.1"
+#include "../obj/ver_defs.h"
+//#define VER_MAJOR         1
+//#define VER_MINOR         2
+//#define VER_RELEASE       3
+//#define VER_BUILD         4
+//#define VER_STRING        "1.2.3.4"
+
 /* Program name, copyrights and file names */
 #define PROGRAM_NAME      "Png2bestPal"
 #define PROGRAM_FULL_NAME "Best 8bpp palette selector for a series of PNG files"
diff --git a/version.mk b/version.mk
new file mode 100644
index 0000000..155de0d
--- /dev/null
+++ b/version.mk
@@ -0,0 +1,5 @@
+VER_MAJOR=1
+VER_MINOR=0
+VER_RELEASE=1
+VER_BUILD=19
+PACKAGE_SUFFIX=devel