diff -ur cpl-6.3.1/configure cpl-6.3.1.new/configure
--- cpl-6.3.1/configure	2013-05-16 10:28:55.000000000 +0200
+++ cpl-6.3.1.new/configure	2013-07-16 01:49:54.772272737 +0200
@@ -14548,7 +14548,7 @@
 
     cpl_cfitsio_check_version="3.310"
     cpl_cfitsio_check_header="fitsio.h"
-    cpl_cfitsio_check_lib="libcfitsio.a"
+    cpl_cfitsio_check_lib="libcfitsio.so"
 
     cpl_cfitsio_incdirs=""
     cpl_cfitsio_libdirs=""
@@ -15109,7 +15109,7 @@
 
     cpl_wcs_check_version="4.16"
     cpl_wcs_check_header="wcslib/wcslib.h"
-    cpl_wcs_check_lib="libwcs.a"
+    cpl_wcs_check_lib="libwcs.so"
 
     cpl_wcs_includes=""
     cpl_wcs_libraries=""
@@ -15411,8 +15411,8 @@
 
 	cpl_fftw_check_version="3.3.3"
     cpl_fftw_check_header="fftw3.h"
-    cpl_fftw_check_lib="libfftw3.a"
-    cpl_fftwf_check_lib="libfftw3f.a"
+    cpl_fftw_check_lib="libfftw3.so"
+    cpl_fftwf_check_lib="libfftw3f.so"
 
     cpl_fftw_includes=""
     cpl_fftw_libraries=""