Bump minimum PSBLAS requirement to 3.9.0

configure

@@ -4250,7 +4250,7 @@ ac_compile='$FC -c $FCFLAGS $ac_fcflags_srcext conftest.$ac_ext >&5'
 ac_link='$FC -o conftest$ac_exeext $FCFLAGS $LDFLAGS $ac_fcflags_srcext conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_fc_compiler_gnu
 if test -n "$ac_tool_prefix"; then
-  for ac_prog in ftn xlf2003_r xlf2003 xlf95_r xlf95 xlf90 xlf pgf95 pgf90 ifx ifort ifc  nagfor gfortran
+  for ac_prog in ftn xlf2003_r xlf2003 xlf95_r xlf95 xlf90 xlf pgf95 pgf90 flang ifx ifort ifc  nagfor gfortran
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
@@ -4300,7 +4300,7 @@ fi
 fi
 if test -z "$FC"; then
   ac_ct_FC=$FC
-  for ac_prog in ftn xlf2003_r xlf2003 xlf95_r xlf95 xlf90 xlf pgf95 pgf90 ifx ifort ifc  nagfor gfortran
+  for ac_prog in ftn xlf2003_r xlf2003 xlf95_r xlf95 xlf90 xlf pgf95 pgf90 flang ifx ifort ifc  nagfor gfortran
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
@@ -4738,7 +4738,7 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
-  for ac_prog in cc xlc pgcc icx icc gcc
+  for ac_prog in cc xlc pgcc clang icx icc gcc
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
@@ -4788,7 +4788,7 @@ fi
 fi
 if test -z "$CC"; then
   ac_ct_CC=$CC
-  for ac_prog in cc xlc pgcc icx icc gcc
+  for ac_prog in cc xlc pgcc clang icx icc gcc
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
@@ -5442,7 +5442,7 @@ if test -z "$CXX"; then
     CXX=$CCC
   else
     if test -n "$ac_tool_prefix"; then
-  for ac_prog in CC xlc++ icpx icpc g++
+  for ac_prog in CC xlc++ clang++ icpx icpc g++
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
@@ -5492,7 +5492,7 @@ fi
 fi
 if test -z "$CXX"; then
   ac_ct_CXX=$CXX
-  for ac_prog in CC xlc++ icpx icpc g++
+  for ac_prog in CC xlc++ clang++ icpx icpc g++
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2

configure.ac

@@ -129,10 +129,10 @@ dnl We set our own FC flags, ignore those from AC_PROG_FC but not those from the
 dnl environment variable. Same for C
 dnl 
 save_FCFLAGS="$FCFLAGS";
-AC_PROG_FC([ftn xlf2003_r xlf2003 xlf95_r xlf95 xlf90 xlf pgf95 pgf90 ifx ifort ifc  nagfor gfortran])
+AC_PROG_FC([ftn xlf2003_r xlf2003 xlf95_r xlf95 xlf90 xlf pgf95 pgf90 flang ifx ifort ifc  nagfor gfortran])
 FCFLAGS="$save_FCFLAGS";
 save_CFLAGS="$CFLAGS";
-AC_PROG_CC([cc xlc pgcc icx icc gcc ])
+AC_PROG_CC([cc xlc pgcc clang icx icc gcc ])
 if test "x$ac_cv_prog_cc_stdc" == "xno" ; then
    AC_MSG_ERROR([Problem : Need a C99 compiler ! ])
 else
@@ -140,7 +140,7 @@ else
 fi	
 CFLAGS="$save_CFLAGS";
 save_CXXFLAGS="$CXXFLAGS";
-AC_PROG_CXX([CC xlc++ icpx icpc g++])
+AC_PROG_CXX([CC xlc++ clang++ icpx icpc g++])
 CXXFLAGS="$save_CXXFLAGS";
 dnl AC_PROG_CXX