Change complex_return='intel' for ifx. (#637)

bartoldeman · web-flow · commit 98d467891b74 · 2022-07-11T18:40:53.000-05:00
Details:
- When checking the version string of the Fortran compiler for the
  purposes of determining a default return convention for complex
  domain values, grep for "IFORT" instead of "ifort" since that string
  is common to both the 'ifx' and 'ifort' binaries provided by Intel:

    $ ifx --version
    ifx (IFORT) 2022.1.0 20220316
    Copyright (C) 1985-2022 Intel Corporation. All rights reserved.

    $ ifort --version
    ifort (IFORT) 2021.6.0 20220226
    Copyright (C) 1985-2022 Intel Corporation. All rights reserved.
diff --git a/configure b/configure
@@ -3688,9 +3688,9 @@ main()
 			# Query the compiler "vendor" (ie: the compiler's simple name).
 			# The last part ({ read first rest ; echo $first ; }) is a workaround
 			# to OS X's egrep only returning the first match.
-			fc_vendor=$(echo "${vendor_string}" | egrep -o 'ifort|GNU' | { read first rest ; echo $first ; })
+			fc_vendor=$(echo "${vendor_string}" | egrep -o 'IFORT|GNU' | { read first rest ; echo $first ; })
 
-			if [ "x${fc_vendor}" = "xifort" ]; then
+			if [ "x${fc_vendor}" = "xIFORT" ]; then
 				complex_return='intel'
 			elif [ "x${fc_vendor}" = "xGNU" ]; then
 				complex_return='gnu'
