--- cfitsio-4.2.0/configure.in.orig	2018-05-09 21:16:00.000000000 +0200
+++ cfitsio-4.2.0/configure.in	2018-12-19 18:34:11.086617382 +0100
@@ -225,7 +225,7 @@ fi
 
 #-------------------------------------------------------------------------------
 
-LDFLAGS="$CFLAGS"
+LDFLAGS="$LDFLAGS $CFLAGS"
 LDFLAGS_BIN="$LDFLAGS"
 
 if test "x$FC" = "xnone" ; then