Change Autoconf macro to put extension compiler flag at the end

Author: Girgias

build/php.m4

@@ -251,10 +251,10 @@ dnl Append to the array which has been dynamically chosen at m4 time.
 
 dnl Choose the right compiler/flags/etc. for the source-file.
       case $ac_src in
-        *.c[)] ac_comp="$b_c_pre $3 $ac_inc $b_c_meta -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $6$b_c_post" ;;
-        *.s[)] ac_comp="$b_c_pre $3 $ac_inc $b_c_meta -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $6$b_c_post" ;;
-        *.S[)] ac_comp="$b_c_pre $3 $ac_inc $b_c_meta -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $6$b_c_post" ;;
-        *.cpp|*.cc|*.cxx[)] ac_comp="$b_cxx_pre $3 $ac_inc $b_cxx_meta -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $6$b_cxx_post" ;;
+        *.c[)] ac_comp="$b_c_pre $ac_inc $b_c_meta -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $3 $6$b_c_post" ;;
+        *.s[)] ac_comp="$b_c_pre $ac_inc $b_c_meta -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $3 $6$b_c_post" ;;
+        *.S[)] ac_comp="$b_c_pre $ac_inc $b_c_meta -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $3 $6$b_c_post" ;;
+        *.cpp|*.cc|*.cxx[)] ac_comp="$b_cxx_pre $ac_inc $b_cxx_meta -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $3 $6$b_cxx_post" ;;
       esac
 
 dnl Create a rule for the object/source combo.