diff --git a/libs/tiff-4.0.2/configure.ac b/libs/tiff-4.0.2/configure.ac
index 72989e760e..a61d564ecc 100644
--- a/libs/tiff-4.0.2/configure.ac
+++ b/libs/tiff-4.0.2/configure.ac
@@ -32,6 +32,10 @@ AC_LANG(C)
 AC_PROG_LIBTOOL
 m4_include(m4/acinclude.m4)
 
+CFLAGS="$CFLAGS $CONFIGURE_CFLAGS"
+CXXFLAGS="$CXXFLAGS $CONFIGURE_CXXFLAGS"
+LDFLAGS="$LDFLAGS $CONFIGURE_LDFLAGS"
+
 dnl Compute the canonical host (run-time) system type variable
 AC_CANONICAL_HOST