diff --git a/build/php.m4 b/build/php.m4
index 1f77f38e572f2..b4cf3edcf3fda 100644
--- a/build/php.m4
+++ b/build/php.m4
@@ -218,7 +218,7 @@ ifelse($1,shared,[
 ])
 
 dnl
-dnl PHP_ADD_SOURCES_X(source-path, sources[, special-flags[, target-var[, shared[, special-post-flags]]]])
+dnl PHP_ADD_SOURCES_X(source-path, sources[, special-flags[, target-var[, shared]]])
 dnl
 dnl Additional to PHP_ADD_SOURCES (see above), this lets you set the name of the
 dnl array target-var directly, as well as whether shared objects will be built
@@ -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 $3 -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $b_c_post" ;;
+        *.s[)] ac_comp="$b_c_pre $ac_inc $b_c_meta $3 -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $b_c_post" ;;
+        *.S[)] ac_comp="$b_c_pre $ac_inc $b_c_meta $3 -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $b_c_post" ;;
+        *.cpp|*.cc|*.cxx[)] ac_comp="$b_cxx_pre $ac_inc $b_cxx_meta $3 -c $ac_srcdir$ac_src -o $ac_bdir$ac_obj.$b_lo $b_cxx_post" ;;
       esac
 
 dnl Create a rule for the object/source combo.