Fix regression introduced in r1128 that caused SIMD detection to malfunction for ARM platforms (and probably ARM64 and MIPS as well.)


git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1135 632fc199-4ca6-4c93-a231-07263d6284db
diff --git a/acinclude.m4 b/acinclude.m4
index 5251350..afb4359 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -144,26 +144,26 @@
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS="$CCASFLAGS -x assembler-with-cpp"
   CC="$CCAS"
-  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+  AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
     .text
     .fpu neon
     .arch armv7a
     .object_arch armv4
     .arm
     pld [r0]
-    vmovn.u16 d0, q0])], ac_good_gnu_arm_assembler=yes)
+    vmovn.u16 d0, q0]])], ac_good_gnu_arm_assembler=yes)
 
   ac_use_gas_preprocessor=no
   if test "x$ac_good_gnu_arm_assembler" = "xno" ; then
     CC="gas-preprocessor.pl $CCAS"
-    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
+    AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
       .text
       .fpu neon
       .arch armv7a
       .object_arch armv4
       .arm
       pld [r0]
-      vmovn.u16 d0, q0])], ac_use_gas_preprocessor=yes)
+      vmovn.u16 d0, q0]])], ac_use_gas_preprocessor=yes)
   fi
   CFLAGS="$ac_save_CFLAGS"
   CC="$ac_save_CC"