+
+if test "x$with_libiptc" = "xpkgconfig"
+then
+ $PKG_CONFIG --exists 'libiptc' 2>/dev/null
+ if test $? -ne 0
+ then
+ with_libiptc="no (pkg-config doesn't know libiptc)"
+ fi
+fi
+if test "x$with_libiptc" = "xpkgconfig"
+then
+ with_libiptc_cflags="`$PKG_CONFIG --cflags 'libiptc'`"
+ if test $? -ne 0
+ then
+ with_libiptc="no ($PKG_CONFIG failed)"
+ fi
+ with_libiptc_libs="`$PKG_CONFIG --libs 'libiptc'`"
+ if test $? -ne 0
+ then
+ with_libiptc="no ($PKG_CONFIG failed)"
+ fi
+fi
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="$CPPFLAGS $with_libiptc_cflags"
+
+# check whether the header file for libiptc is available.
+if test "x$with_libiptc" = "xpkgconfig"