move pgm_options.c into the discount library so I can publish mkd_set_flag_string()

Makefile.in

@@ -29,11 +29,12 @@ OBJS=mkdio.o markdown.o dumptree.o generate.o \
      resource.o docheader.o version.o toc.o css.o \
      xml.o Csio.o xmlpage.o basename.o emmatch.o \
      github_flavoured.o setup.o tags.o html5.o \
-     @AMALLOC@ @H1TITLE@ flags.o v2compat.o flagprocs.o
+     pgm_options.o flags.o v2compat.o flagprocs.o \
+     @AMALLOC@ @H1TITLE@
 TESTFRAMEWORK=rep echo cols branch pandoc_headers space2nl
 
 # modules that markdown, makepage, mkd2html, &tc use
-COMMON=pgm_options.o gethopt.o notspecial.o
+COMMON=gethopt.o notspecial.o
 
 MAN3PAGES=mkd-callbacks.3 mkd-functions.3 markdown.3 mkd-line.3
 

pgm_options.c

@@ -153,6 +153,18 @@ handle_special(mkd_flag_t *flags, char *opt, int enable)
 	}
 }
 
+static void
+set_dlist(mkd_flag_t *flags, int enable)
+{
+    if ( enable ) {
+	set_mkd_flag(flags, MKD_DLDISCOUNT);
+	set_mkd_flag(flags, MKD_DLEXTRA);
+    }
+    else {
+	clear_mkd_flag(flags, MKD_DLDISCOUNT);
+	clear_mkd_flag(flags, MKD_DLEXTRA);
+    }
+}
 
 char *
 mkd_set_flag_string(mkd_flag_t *flags, char *optionstring)
@@ -203,16 +215,3 @@ mkd_set_flag_string(mkd_flag_t *flags, char *optionstring)
     }
     return 0;
 }
-
-static void
-set_dlist(mkd_flag_t *flags, int enable)
-{
-    if ( enable ) {
-	set_mkd_flag(flags, MKD_DLDISCOUNT);
-	set_mkd_flag(flags, MKD_DLEXTRA);
-    }
-    else {
-	clear_mkd_flag(flags, MKD_DLDISCOUNT);
-	clear_mkd_flag(flags, MKD_DLEXTRA);
-    }
-}