From 1062513f7ecb912a50aef9559270a8218c0bacde Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Fri, 19 Jun 2015 12:33:51 +0200
Subject: Compile asdf only if FFTW is available

---
 configure.ac            |  1 +
 libcrystfel/Makefile.am |  3 ++-
 libcrystfel/src/asdf.c  | 30 +++++++++++++++++++++++++
 libcrystfel/src/asdf.h  | 60 +++++++++++++++++++++++++++++++++++++++++++++----
 4 files changed, 89 insertions(+), 5 deletions(-)

diff --git a/configure.ac b/configure.ac
index d475d6e0..5086459c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -282,6 +282,7 @@ PKG_CHECK_MODULES([FFTW], [fftw3],
    have_fftw=true
    AC_DEFINE([HAVE_FFTW], [1], [Define to 1 if FFTW is available])
 ], [
+   AC_MSG_WARN([asdf indexing wil not be available.])
    have_fftw=false
 ])
 
diff --git a/libcrystfel/Makefile.am b/libcrystfel/Makefile.am
index be7a2556..8e5acaaf 100644
--- a/libcrystfel/Makefile.am
+++ b/libcrystfel/Makefile.am
@@ -10,9 +10,10 @@ libcrystfel_la_SOURCES = src/reflist.c src/utils.c src/cell.c src/detector.c \
                          src/render.c src/index.c src/dirax.c src/mosflm.c \
                          src/cell-utils.c src/integer_matrix.c src/crystal.c \
                          src/xds.c src/integration.c \
-                         src/histogram.c src/events.c src/asdf.c
+                         src/histogram.c src/events.c
 
 if HAVE_FFTW
+libcrystfel_la_SOURCES += src/asdf.c
 endif
 
 libcrystfel_la_includedir=$(includedir)/crystfel/
diff --git a/libcrystfel/src/asdf.c b/libcrystfel/src/asdf.c
index 345bd32c..b5436f7f 100644
--- a/libcrystfel/src/asdf.c
+++ b/libcrystfel/src/asdf.c
@@ -1,3 +1,33 @@
+/*
+ * asdf.c
+ *
+ * Alexandra's Superior Direction Finder, or
+ * Algorithm Similar to DirAx, FFT-based
+ *
+ * Copyright © 2014-2015 Deutsches Elektronen-Synchrotron DESY,
+ *                       a research centre of the Helmholtz Association.
+ *
+ * Authors:
+ *   2014-2015 Alexandra Tolstikova <alexandra.tolstikova@desy.de>
+ *   2015      Thomas White <taw@physics.org>
+ *
+ * This file is part of CrystFEL.
+ *
+ * CrystFEL is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * CrystFEL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with CrystFEL.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
 #include <stdlib.h>
 #include <stdio.h>
 #include <math.h>
diff --git a/libcrystfel/src/asdf.h b/libcrystfel/src/asdf.h
index 402636d1..2c070d79 100644
--- a/libcrystfel/src/asdf.h
+++ b/libcrystfel/src/asdf.h
@@ -1,4 +1,32 @@
-
+/*
+ * asdf.h
+ *
+ * Alexandra's Superior Direction Finder, or
+ * Algorithm Similar to DirAx, FFT-based
+ *
+ * Copyright © 2014-2015 Deutsches Elektronen-Synchrotron DESY,
+ *                       a research centre of the Helmholtz Association.
+ *
+ * Authors:
+ *   2014-2015 Alexandra Tolstikova <alexandra.tolstikova@desy.de>
+ *   2015      Thomas White <taw@physics.org>
+ *
+ * This file is part of CrystFEL.
+ *
+ * CrystFEL is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * CrystFEL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with CrystFEL.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
 
 #ifndef ASDF_H
 #define ASDF_H
@@ -13,16 +41,40 @@
 extern "C" {
 #endif
 
+#ifdef HAVE_FFTW
+
 extern int run_asdf(struct image *image, IndexingPrivate *ipriv);
 
 extern IndexingPrivate *asdf_prepare(IndexingMethod *indm,
-                                      UnitCell *cell, struct detector *det,
-                                      float *ltl);
+                                     UnitCell *cell, struct detector *det,
+                                     float *ltl);
 
 extern void asdf_cleanup(IndexingPrivate *pp);
 
+#else /* HAVE_FFTW */
+
+int run_asdf(struct image *image, IndexingPrivate *ipriv)
+{
+}
+
+
+IndexingPrivate *asdf_prepare(IndexingMethod *indm,
+                              UnitCell *cell, struct detector *det,
+                              float *ltl)
+{
+	return NULL;
+}
+
+void asdf_cleanup(IndexingPrivate *pp)
+{
+}
+
+
+#endif /* HAVE_FFTW */
+
+
 #ifdef __cplusplus
 }
 #endif
 
-#endif	/* DIRAX_H */
+#endif	/* ASDF_H */
-- 
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