Enlightenment, apparently for no particular reason, casts a few (const char *)'s  to (char *) array before passing them to iconv(3), which expects a (const char *)   as 2nd argument.
This leads to some warnings which we could get rid of.

Fix: add this patch to ${FILESDIR}

/*** BEGIN patch-src-lang.c ***/



/*** END patch-src-lang.c ***/--J4HxEBX1lEb8reFwExmVQgK8cVADOKKDjE3FG5XJ0CYx2JuE
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--- src/lang.c.orig	2007-10-06 09:16:39.000000000 +0200
+++ src/lang.c	2007-10-31 01:40:09.000000000 +0100
@@ -53,10 +53,11 @@
 Eiconv(iconv_t icd, const char *txt, size_t len)
 {
    char                buf[4096];
-   char               *pi, *po;
+   const char         *pi;
+   char               *po;
    size_t              err, ni, no;
 
-   pi = (char *)txt;
+   pi = txt;
    po = buf;
    ni = (len > 0) ? len : strlen(txt);
    if (!icd)
@@ -202,11 +203,12 @@
 EwcStrToWcs(const char *str, int len, wchar_t * wcs, int wcl)
 {
 #if HAVE_ICONV
-   char               *pi, *po;
+   const char         *pi;
+   char               *po;
    size_t              ni, no, rc;
    char                buf[4096];
 
-   pi = (char *)str;
+   pi = str;
    ni = len;
 
    if (!wcs)
@@ -242,10 +244,10 @@
 EwcWcsToStr(const wchar_t * wcs, int wcl, char *str, int len)
 {
 #if HAVE_ICONV
-   char               *pi;
+   const char         *pi;
    size_t              ni, no, rc;
 
-   pi = (char *)wcs;
+   pi = (const char *)wcs;
    ni = wcl * sizeof(wchar_t);
    no = len;
    rc = iconv(iconv_cd_wcs2str, &pi, &ni, &str, &no);
How-To-Repeat: cd /usr/ports/x11-wm/enlightenment && make | grep warning