diff -urpa rpm-4.5.orig/configure.ac rpm-4.5/configure.ac
--- rpm-4.5.orig/configure.ac	2011-10-03 01:50:17.000000000 +0000
+++ rpm-4.5/configure.ac	2018-02-23 13:52:54.438364538 +0000
@@ -291,6 +291,7 @@ AC_PATH_PROG(__PHP, php, %{_bindir}/php,
 AC_PATH_PROG(__PYTHON, python, %{_bindir}/python, $MYPATH)
 AC_PATH_PROG(__RM, rm, /bin/rm, $MYPATH)
 AC_PATH_PROG(__RSH, rsh, %{_bindir}/rsh, $MYPATH)
+AC_PATH_PROG(__RUBY, ruby, %{_bindir}/ruby, $MYPATH)
 AC_PATH_PROG(__SED, sed, /bin/sed, $MYPATH)
 AC_PATH_PROG(__SH, sh, /bin/sh, $MYPATH)
 AC_PATH_PROG(__SSH, ssh, %{_bindir}/ssh, $MYPATH)
diff -urpa rpm-4.5.orig/lib/rpmfc.c rpm-4.5/lib/rpmfc.c
--- rpm-4.5.orig/lib/rpmfc.c	2008-06-10 22:13:27.000000000 +0000
+++ rpm-4.5/lib/rpmfc.c	2018-02-23 14:04:42.056356571 +0000
@@ -478,6 +478,9 @@ static struct rpmfcTokens_s rpmfcTokens[
 
   { "Java ",			RPMFC_JAVA|RPMFC_INCLUDE },
 
+  { "ruby script text",		RPMFC_RUBY|RPMFC_INCLUDE },
+  { "Ruby script text",		RPMFC_RUBY|RPMFC_INCLUDE },
+
   /* .NET executables and libraries. file(1) cannot differ it from native win32 executables unfortunatelly */
   { "PE executable",		RPMFC_MONO|RPMFC_INCLUDE },
   { "executable PE",		RPMFC_MONO|RPMFC_INCLUDE },
@@ -740,6 +743,8 @@ static int rpmfcSCRIPT(rpmfc fc)
 	    fc->fcolor->vals[fc->ix] |= RPMFC_PYTHON;
 	else if (!strncmp(bn, "php", sizeof("php")-1))
 	    fc->fcolor->vals[fc->ix] |= RPMFC_PHP;
+	else if (!strncmp(bn, "ruby", sizeof("ruby")-1))
+	    fc->fcolor->vals[fc->ix] |= RPMFC_RUBY;
 
 	break;
     }
@@ -788,6 +793,13 @@ static int rpmfcSCRIPT(rpmfc fc)
 	if (is_executable)
 	    xx = rpmfcHelper(fc, 'R', "php");
     } else
+    if (fc->fcolor->vals[fc->ix] & RPMFC_RUBY) {
+	xx = rpmfcHelper(fc, 'P', "ruby");
+#ifdef  NOTYET
+	if (is_executable)
+#endif
+	    xx = rpmfcHelper(fc, 'R', "ruby");
+    } else
     if (fc->fcolor->vals[fc->ix] & RPMFC_JAVA) {
 	xx = rpmfcHelper(fc, 'P', "java");
 	xx = rpmfcHelper(fc, 'R', "java");
@@ -898,7 +910,7 @@ typedef struct rpmfcApplyTbl_s {
 /*@unchecked@*/
 static struct rpmfcApplyTbl_s rpmfcApplyTable[] = {
     { rpmfcELF,		RPMFC_ELF },
-    { rpmfcSCRIPT,	(RPMFC_SCRIPT|RPMFC_PERL|RPMFC_PYTHON|RPMFC_LIBTOOL|RPMFC_PKGCONFIG|RPMFC_BOURNE|RPMFC_JAVA|RPMFC_PHP|RPMFC_DESKTOP_FILE) },
+    { rpmfcSCRIPT,	(RPMFC_SCRIPT|RPMFC_PERL|RPMFC_PYTHON|RPMFC_LIBTOOL|RPMFC_PKGCONFIG|RPMFC_BOURNE|RPMFC_JAVA|RPMFC_PHP|RPMFC_RUBY|RPMFC_DESKTOP_FILE) },
     { rpmfcMONO,	RPMFC_MONO },
     { NULL, 0 }
 };
@@ -925,7 +937,7 @@ int rpmfcApply(rpmfc fc)
     /* Generate package and per-file dependencies. */
     for (fc->ix = 0; fc->fn[fc->ix] != NULL; fc->ix++) {
 
-	/* XXX Insure that /usr/lib{,64}/python files are marked RPMFC_PYTHON */
+	/* XXX Insure that /usr/{share,lib{,64}}/python files are marked RPMFC_PYTHON */
 	/* XXX HACK: classification by path is intrinsically stupid. */
 	{   const char *fn = strstr(fc->fn[fc->ix], "/usr/lib");
 	    if (fn) {
@@ -934,6 +946,36 @@ int rpmfcApply(rpmfc fc)
 		    fn += 2;
 		if (!strncmp(fn, "/python", sizeof("/python")-1))
 		    fc->fcolor->vals[fc->ix] |= RPMFC_PYTHON;
+		else if (!strncmp(fn, "/ruby", sizeof("/ruby")-1)) {
+		    fc->fcolor->vals[fc->ix] |= RPMFC_RUBY;
+		    if ((strstr(fn, ".gemspec") || strstr(fn, "rbconfig.rb"))) {
+			miRE mire = mireNew(RPMMIRE_REGEX, RPMTAG_FILEPATHS);
+			if (!mireRegcomp(mire, ".*/(specifications/.*\\.gemspec|rbconfig\\.rb)$"))
+			    if (mireRegexec(mire, fc->fn[fc->ix]))
+				fc->fcolor->vals[fc->ix] |= RPMFC_MODULE;
+			mire = mireFree(mire);
+		    }
+		}
+		/* XXX: lacking better, more generic classifier... */
+		else if (!strncmp(fn, "/gstreamer", sizeof("/gstreamer")-1) &&
+			fc->fcolor->vals[fc->ix] & RPMFC_LIBRARY)
+		    fc->fcolor->vals[fc->ix] |= (RPMFC_MODULE|RPMFC_SCRIPT);
+	    }
+	    fn = strstr(fc->fn[fc->ix], "/usr/share");
+	    if (fn) {
+		fn += sizeof("/usr/share")-1;
+		if (!strncmp(fn, "/python", sizeof("/python")-1))
+		    fc->fcolor->vals[fc->ix] |= RPMFC_PYTHON;
+		else if (!strncmp(fn, "/ruby", sizeof("/ruby")-1) || !strncmp(fn, "/gems/specifications", sizeof("/gems/specifications")-1)) {
+		    fc->fcolor->vals[fc->ix] |= RPMFC_RUBY;
+		    if ((strstr(fn, ".gemspec") || strstr(fn, "rbconfig.rb"))) {
+			miRE mire = mireNew(RPMMIRE_REGEX, RPMTAG_FILEPATHS);
+			if (!mireRegcomp(mire, ".*/(specifications/.*\\.gemspec|rbconfig\\.rb)$"))
+			    if (mireRegexec(mire, fc->fn[fc->ix]))
+				fc->fcolor->vals[fc->ix] |= RPMFC_MODULE;
+			mire = mireFree(mire);
+		    }
+		}
 	    }
 	}
 
diff -urpa rpm-4.5.orig/lib/rpmfc.h rpm-4.5/lib/rpmfc.h
--- rpm-4.5.orig/lib/rpmfc.h	2008-06-10 21:21:57.000000000 +0000
+++ rpm-4.5/lib/rpmfc.h	2018-02-23 13:52:54.438364538 +0000
@@ -31,8 +31,9 @@ enum FCOLOR_e {
 #define	RPMFC_ELF	(RPMFC_ELF32|RPMFC_ELF64|RPMFC_ELFMIPSN32)
 
 	/* bits 4-7 unused */
-    RPMFC_DESKTOP_FILE		= (1 << 7),	/* XXX */
+    RPMFC_DESKTOP_FILE		= (1 << 6),	/* XXX */
 
+    RPMFC_RUBY			= (1 << 7),
     RPMFC_PKGCONFIG		= (1 <<  8),
     RPMFC_LIBTOOL		= (1 <<  9),
     RPMFC_BOURNE		= (1 << 10),
diff -urpa rpm-4.5.orig/macros.in rpm-4.5/macros.in
--- rpm-4.5.orig/macros.in	2008-06-10 22:00:43.000000000 +0000
+++ rpm-4.5/macros.in	2018-02-23 13:52:54.439364538 +0000
@@ -78,6 +78,7 @@
 %__python		@__PYTHON@
 %__rm			@__RM@
 %__rsh			@__RSH@
+%__ruby			@__RUBY@
 %__sed			@__SED@
 %__sh			@__SH@
 %__ssh			@__SSH@
@@ -1421,6 +1422,44 @@ PreReq: python >= %{python_version}, pyt
 #%__java_requires	%{_rpmhome}/javadeps.sh --requires
 
 #------------------------------------------------------------------------
+# ruby(...) configuration.
+#
+# Path to scripts to autogenerate ruby package dependencies,
+
+# Note: Used if _use_internal_dependency_generator is non-zero. The
+# helpers are also used by %{_rpmhome}/rpmdeps {--provides|--requires}.
+%__ruby_provides	%{_rpmhome}/rubygems.rb --provides
+%__ruby_requires	%{_rpmhome}/rubygems.rb --requires
+
+%ruby_version		%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["ruby_version"]')
+
+%ruby_archdir		%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["archdir"]')
+%ruby_libdir		%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["rubylibdir"]')
+%ruby_sitedir		%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["sitedir"]')
+%ruby_sitearchdir	%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["sitearchdir"]')
+%ruby_sitelibdir	%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["sitelibdir"]')
+%ruby_vendordir		%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["vendordir"]')
+%ruby_vendorarchdir	%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["vendorarchdir"]')
+%ruby_vendorlibdir	%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["vendorlibdir"]')
+%ruby_gemdir		%(%{__ruby} -rrbconfig -e 'print RbConfig::CONFIG["rubylibdir"].sub(RbConfig::CONFIG["ruby_version"], "gems/#{RbConfig::CONFIG["ruby_version"]}")')
+%ruby_ridir		%(%{__ruby} -rrbconfig -e 'print File.join(RbConfig::CONFIG["datadir"], "ri", RbConfig::CONFIG["ruby_version"])')
+
+%__gem_helper %{_usrlibrpm}/gem_helper.rb
+
+%gem_build(f:j:) \
+	%__gem_helper build \\\
+	%{-f:-f%{-f*}} \\\
+	%{!-j:%{_smp_mflags}}%{-j:-j%{-j*}}
+
+%gem_install(i:n:C) \
+	DESTDIR=${DESTDIR:-%{buildroot}} \\\
+	%__gem_helper install \\\
+	--env-shebang --rdoc --ri --force --ignore-dependencies \\\
+	%{!-i:--install-dir %{buildroot}%{ruby_gemdir}}%{-i:--install-dir %{-i*}} \\\
+	%{!-n:--bindir %{buildroot}%{_bindir}}%{-n:--bindir%{-n*}} \\\
+	%{!-C:--fix-permissions}
+
+#------------------------------------------------------------------------
 # libtool(...) configuration.
 #
 # Path to scripts to autogenerate libtool package dependencies,