make thumb build a configure option (--thumb)

Put the USE_THUMB define in extradefines (Makefile), not in autoconf.h

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26764 a1c6a512-1295-4272-9138-f99709370657

tools/configure

@@ -369,7 +369,7 @@ whichadvanced () {
     interact=1
     echo ""
     echo "Enter your developer options (press enter when done)"
-    printf "(D)EBUG, (L)ogf, Boot(c)hart, (S)imulator, (P)rofiling, (V)oice, (W)in32 crosscompile, (T)est plugins, T(H)umb"
+    printf "(D)EBUG, (L)ogf, Boot(c)hart, (S)imulator, (P)rofiling, (V)oice, (W)in32 crosscompile, (T)est plugins"
     if [ "$memory" = "2" ]; then
       printf ", (8)MB MOD"
     fi
@@ -414,10 +414,6 @@ whichadvanced () {
         echo "Including test plugins"
         extradefines="$extradefines -DHAVE_TEST_PLUGINS"
         ;;
-      [Hh])
-        echo "Building with thumb"
-        config_thumb="#define USE_THUMB"
-        ;;
       [Cc])
           echo "bootchart enabled (logf also enabled)"
         bootchart="yes"
@@ -801,6 +797,7 @@ help() {
     --eabi            Make configure prefer toolchains that are able to compile
                       for the new ARM standard abi EABI
     --no-eabi         The opposite of --eabi (prefer old non-eabi toolchains)
+    --thumb           Build with -mthumb (for ARM builds)
     --help            Shows this message (must not be used with other options)
 
 EOF
@@ -835,6 +832,7 @@ for arg in "$@"; do
 		--voice=*)    ARG_VOICE=`echo "$arg" | cut -d = -f 2`;;
 		--eabi)       ARG_ARM_EABI=1;;
 		--no-eabi)    ARG_ARM_EABI=0;;
+		--thumb)      ARG_ARM_THUMB=1;;
 		--help)       help;;
 		*)            err=1; echo "[ERROR] Option '$arg' unsupported";;
 	esac
@@ -2927,7 +2925,8 @@ DLLTOOL=`findtool ${DLLTOOL} --lit`
 DLLWRAP=`findtool ${DLLWRAP} --lit`
 RANLIB=`findtool ${RANLIB} --lit`
 
-if test -n "$config_thumb"; then
+if test "$ARG_ARM_THUMB" = "1"; then
+  extradefines="$extradefines -DUSE_THUMB"
   CC="$toolsdir/thumb-cc.py $CC"
 fi
 
@@ -2956,7 +2955,6 @@ sed > autoconf.h \
  -e "s,@have_backlight@,$have_backlight,g" \
  -e "s,@have_fmradio_in@,$have_fmradio_in,g" \
  -e "s,@have_ata_poweroff@,$have_ata_poweroff,g" \
- -e "s,@config_thumb@,$config_thumb,g" \
 <<EOF
 /* This header was made by configure */
 #ifndef __BUILD_AUTOCONF_H
@@ -2980,9 +2978,6 @@ sed > autoconf.h \
 /* optional define for ATA poweroff on Player */
 @have_ata_poweroff@
 
-/* optional define for ARM thumb builds */
-@config_thumb@
-
 /* optional defines for RTC mod for h1x0 */
 @config_rtc@
 @have_rtc_alarm@