Support and pass "-marm".

* build-aux/cflags.sh,
build-aux/check.sh.in: Pass "-marm" for ARM.
* module/mescc/mescc.scm: Accept it.

build-aux/cflags.sh

@@ -50,6 +50,12 @@ if test $mes_libc = mes; then
 fi
 LIBS=-lc
 
+if test $mes_cpu = arm; then
+    AM_CFLAGS="$AM_CFLAGS
+-marm
+"
+fi
+
 export AM_CFLAGS CFLAGS
 export AM_CPPFLAGS CPPFLAGS
 export AM_LDFLAGS LDFLAGS

build-aux/check.sh.in

@@ -35,6 +35,9 @@ if $courageous; then
 fi
 
 CFLAGS=
+if test $mes_cpu = arm; then
+    CFLAGS="-marm"
+fi
 if test $mes_libc = mes; then
     CFLAGS="${CFLAGS}
 -static

module/mescc/mescc.scm

@@ -299,7 +299,8 @@
          (arch (option-ref options 'arch #f)))
     (if machine (cond ((member arch '("x86" "x86_64")) (cond ((equal? machine "32") "x86")
                                                              ((equal? machine "64") "x86_64")))
-                      ((equal? arch "arm") (cond ((equal? machine "32") "arm"))))
+                      ((equal? arch "arm") (cond ((equal? machine "32") "arm")
+                                                 ((equal? machine "arm") "arm"))))
         arch)))
 
 (define (mescc:get-host options)