From 374260027df00af208445b8239fb643e63f74745 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Thu, 21 Dec 2017 20:42:30 +0100
Subject: [PATCH] Add conditionals around ar calls for optional modules

The macOS ar aborts when it gets called with no input, see #1398
---
 lapack-netlib/LAPACKE/src/Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lapack-netlib/LAPACKE/src/Makefile b/lapack-netlib/LAPACKE/src/Makefile
index 600984308..44884d4a5 100644
--- a/lapack-netlib/LAPACKE/src/Makefile
+++ b/lapack-netlib/LAPACKE/src/Makefile
@@ -2457,9 +2457,15 @@ all: ../../$(LAPACKELIB)
 ../../$(LAPACKELIB): $(OBJ_A) $(OBJ_B) $(DEPRECATED) $(EXTENDED) $(MATGEN)
 	$(ARCH) $(ARCHFLAGS) $@ $(OBJ_A)
 	$(ARCH) $(ARCHFLAGS) $@ $(OBJ_B)
+ifdef BUILD_DEPRECATED
 	$(ARCH) $(ARCHFLAGS) $@ $(DEPRECATED)
+endif
+ifdef (USEXBLAS)
 	$(ARCH) $(ARCHFLAGS) $@ $(EXTENDED)
+endif
+ifdef LAPACKE_WITH_TMG
 	$(ARCH) $(ARCHFLAGS) $@ $(MATGEN)
+endif
 	$(RANLIB) $@
 
 clean: cleanobj