diff --git a/Makefile b/Makefile
index d4b7425..175aaa0 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,12 @@

 DEBUG ?= 0

+# -----------------------------------------------
+# TOOLS
+# -----------------------------------------------
+
+TAR ?= tar
+
 # -----------------------------------------------
 # SYSTEM DETECTION
 # -----------------------------------------------
@@ -54,7 +60,7 @@ $(TARFILE): $(SUBDIRS)
    @printf "\033[1;36m===[Make package]===\033[0m\n"
    @mkdir -p $(dir $@)
    rm -f $@
-   tar -czvf $@ COPYING.txt -C $(BINDIR) $(EXEFILE) BUILD_TAG.txt
+   $(TAR) -czvf $@ COPYING.txt -C $(BINDIR) $(EXEFILE) BUILD_TAG.txt
    @printf "\033[1;32mCompleted.\033[0m\n"

 $(SUBDIRS):
@@ -66,3 +72,4 @@ $(CLEANUP):
    @printf "\033[1;31m===[Clean %s]===\033[0m\n" $(basename $@)
    $(MAKE) -B -C $(basename $@) clean
    @printf "\033[1;32mExtinguished.\033[0m\n"
+
diff --git a/frontend/Makefile b/frontend/Makefile
index aecd29f..001b9a1 100644
--- a/frontend/Makefile
+++ b/frontend/Makefile
@@ -122,3 +122,4 @@ clean:
    rm -rf $(OBJDIR)/*.o
    rm -rf $(OBJDIR)/*.h
    rm -rf $(BINDIR)/*.$(SUFFIX)
+
diff --git a/frontend/src/sys_info.h b/frontend/src/sys_info.h
index 380edbb..31d27ba 100644
--- a/frontend/src/sys_info.h
+++ b/frontend/src/sys_info.h
@@ -36,6 +36,10 @@
 #  define SYSTEM_NAME "NetBSD"
 #elif defined(__OpenBSD__)
 #  define SYSTEM_NAME "OpenBSD"
+#elif defined(__sun)
+#  define SYSTEM_NAME "Solaris"
+#elif defined(__unix__)
+#  define SYSTEM_NAME "Unix"
 #else
 #  error Unknonw platform!
 #endif
diff --git a/libmhash384/Makefile b/libmhash384/Makefile
index 74d4862..fd67ae0 100644
--- a/libmhash384/Makefile
+++ b/libmhash384/Makefile
@@ -64,3 +64,4 @@ $(OBJDIR)/%.o: $(SRCDIR)/%.cpp
 clean:
    rm -rf $(OBJDIR)/*.o
    rm -rf $(LIBDIR)/*.a
+