diff --git a/src/auto/configure b/src/auto/configure
index bb079f0..63da098 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -4221,7 +4221,7 @@
     MACOSX=yes
     OS_EXTRA_SRC="os_macosx.m os_mac_conv.c";
     OS_EXTRA_OBJ="objects/os_macosx.o objects/os_mac_conv.o"
-        CPPFLAGS="$CPPFLAGS -DMACOS_X_UNIX -no-cpp-precomp"
+            CPPFLAGS="$CPPFLAGS -DMACOS_X_UNIX"
 
                 # On IRIX 5.3, sys/types and inttypes.h are conflicting.
 for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
@@ -4311,7 +4311,7 @@
 
   if test "$GCC" = yes -a "$local_dir" != no; then
     echo 'void f(){}' > conftest.c
-        have_local_include=`${CC-cc} -no-cpp-precomp -c -v conftest.c 2>&1 | grep "${local_dir}/include"`
+        have_local_include=`${CC-cc} -c -v conftest.c 2>&1 | grep "${local_dir}/include"`
     have_local_lib=`${CC-cc} -c -v conftest.c 2>&1 | grep "${local_dir}/lib"`
     rm -f conftest.c conftest.o
   fi