configure: fix `mcpu` compiler parameter for RPI targets

diff --git a/configure b/configure
index a710718..f0bad74 100755 (executable)
--- a/configure
+++ b/configure
@@ -74,11 +74,11 @@ set_platform()
   platform=$1
   case "$platform" in
   rpi1)
-    MFLAGS="mcpu=arm1176jzf-s -mfpu=vfp"
+    MFLAGS="-mcpu=arm1176jzf-s -mfpu=vfp"
     have_gles="yes"
     ;;
   rpi2)
-    MFLAGS="mcpu=cortex-a7 -mfpu=neon"
+    MFLAGS="-mcpu=cortex-a7 -mfpu=neon"
     have_gles="yes"
     ;;
   generic)