-Use git tag and latest commit as version value

Makefile

@@ -38,10 +38,12 @@ UT_SRC_32     := $(wildcard $(UT_SRC_DIR)/test_file*.cpp)
 UT_OBJ_32     := $(UT_SRC_32:$(UT_SRC_DIR)/test_file%.cpp=$(UT_OBJ_32BIT_DIR)/test_file%.o)
 UT_OBJ_32     := $(UT_OBJ_32:$(UT_SRC_DIR)/test_file%.cpp=$(UT_OBJ_32BIT_DIR)/test_file%.o)
 
+GIT_VERSION   := "$(shell git describe --tags --abbrev=0)($(shell  git rev-parse --short HEAD))"
+
 
 # Set target flags
 CPPFLAGS            := -MMD -MP -std=c++17 -fmessage-length=0 $(INCLUDES)
-CFLAGS              := -Wall -g3 
+CFLAGS              := -Wall -g3 -DJUICER_VERSION=\"$(GIT_VERSION)\"
 CFLAGS_32BIT        := -Wall -g3 -m32 
 LDFLAGS             := -Llib
 LDLIBS              := -lm -ldwarf -lsqlite3 -lelf -lcrypto

src/main.cpp

@@ -45,7 +45,7 @@
 #include "TestSymbolsA.h"
 #include "TestSymbolsB.h"
 
-const char *argp_program_version     = "juicer 0.1";
+const char *argp_program_version     = JUICER_VERSION;  // JUICER_VERSION macro is generated by build
 const char *argp_program_bug_address = "<[email protected]>";
 
 /* Program documentation. */
@@ -56,7 +56,7 @@ static char doc[] =
 /* A description of the arguments we accept. */
 static char args_doc[] =
     "--input <FILE> --mode <MODE> (--output <FILE> | "
-    "(--address <ADDR> --port <PORT> --project <PROJ>)) -x -g";
+    "(--address <ADDR> --port <PORT> --project <PROJ>)) -x -g --version";
 
 /* The options we understand. */
 static struct argp_option options[] = {{"input", 'i', "FILE", 0, "Input ELF file"},