Added missing "level-0" BLAS [sd]cabs1_().

Details:
- Fixed issue #115 by adding implementations for scabs1_() and dcabs1_()
  to the BLAS compatibility layer. Thanks to heroxbd for pointing out
  their absence.

frame/compat/bli_blas.h

@@ -79,6 +79,11 @@
 #include "bla_xerbla.h"
 
 
+// -- Level-0 BLAS prototypes --
+
+#include "bla_cabs1.h"
+
+
 // -- Level-1 BLAS prototypes --
 
 #include "bla_amax.h"

frame/compat/f2c/bla_cabs1.c

@@ -0,0 +1,62 @@
+/*
+
+   BLIS    
+   An object-based framework for developing high-performance BLAS-like
+   libraries.
+
+   Copyright (C) 2014, The University of Texas at Austin
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+    - Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    - Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    - Neither the name of The University of Texas at Austin nor the names
+      of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+#include "blis.h"
+
+#ifdef BLIS_ENABLE_BLAS2BLIS
+
+/* scabs1.f -- translated by f2c (version 19991025).
+   You must link the resulting object file with the libraries:
+	-lf2c -lm   (in that order)
+*/
+
+/* Subroutine */ bla_real PASTEF77(s,cabs1)(bla_scomplex *z)
+{
+    return bli_fabs( bli_creal( *z ) ) +
+           bli_fabs( bli_cimag( *z ) );
+} /* scabs1_ */
+
+/* dcabs1.f -- translated by f2c (version 19991025).
+   You must link the resulting object file with the libraries:
+	-lf2c -lm   (in that order)
+*/
+
+/* Subroutine */ bla_double PASTEF77(d,cabs1)(bla_dcomplex *z)
+{
+    return bli_fabs( bli_zreal( *z ) ) +
+           bli_fabs( bli_zimag( *z ) );
+} /* dcabs1_ */
+
+#endif
+

frame/compat/f2c/bla_cabs1.h

@@ -0,0 +1,40 @@
+/*
+
+   BLIS    
+   An object-based framework for developing high-performance BLAS-like
+   libraries.
+
+   Copyright (C) 2014, The University of Texas at Austin
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are
+   met:
+    - Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    - Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    - Neither the name of The University of Texas at Austin nor the names
+      of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+   HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+#ifdef BLIS_ENABLE_BLAS2BLIS
+
+bla_real   PASTEF77(s,cabs1)(bla_scomplex *z);
+bla_double PASTEF77(d,cabs1)(bla_dcomplex *z);
+
+#endif