diff -Naur cfitsio/longnam.h cfitsio.noversioncheck/longnam.h

--- cfitsio/longnam.h	2017-09-20 21:40:41.000000000 +0200

+++ cfitsio.noversioncheck/longnam.h	2018-02-23 14:42:36.246522445 +0100

@@ -19,7 +19,8 @@

    that was used to build the CFITSIO library is compatible with the version

    as included when compiling the application program

 */

-#define fits_open_file(A, B, C, D)  ffopentest( CFITSIO_SONAME, A, B, C, D)

+/*#define fits_open_file(A, B, C, D)  ffopentest( CFITSIO_SONAME, A, B, C, D)*/

+#define fits_open_file  ffopen

 #define fits_open_data      ffdopn

 #define fits_open_extlist   ffeopn