From d52fb8ed43928f485272759875ea710baf223a99 Mon Sep 17 00:00:00 2001
From: Salvatore Filippone <salvatore.filippone@cranfield.ac.uk>
Date: Mon, 30 Jan 2012 14:53:03 +0000
Subject: [PATCH] psblas3:  config/pac.m4  configure.ac  configure

Work on long integers: defined configure stuff.
---
 config/pac.m4 | 34 +++++++++++++++++++++++++++++++++-
 configure     | 26 ++++++++++++++++++++++++++
 configure.ac  |  4 ++++
 3 files changed, 63 insertions(+), 1 deletion(-)

diff --git a/config/pac.m4 b/config/pac.m4
index 12b7dd4e..9884a9de 100644
--- a/config/pac.m4
+++ b/config/pac.m4
@@ -329,7 +329,7 @@ AC_MSG_RESULT(no)
 
 dnl @synopsis PAC_ARG_SERIAL_MPI
 dnl
-dnl Test for --with-serial-mpi={yes|no}
+dnl Test for --enable-serial
 dnl 
 dnl 
 dnl
@@ -359,6 +359,38 @@ fi
 ]
 )
 
+dnl @synopsis PAC_ARG_LONG_INTEGERS
+dnl
+dnl Test for --enable-long-integers
+dnl 
+dnl 
+dnl
+dnl Example use:
+dnl
+dnl
+dnl @author Salvatore Filippone <salvatore.filippone@uniroma2.it>
+dnl
+AC_DEFUN([PAC_ARG_LONG_INTEGERS],
+[
+AC_MSG_CHECKING([whether we want long (8 bytes) integers])
+AC_ARG_ENABLE(long-integers,
+AC_HELP_STRING([--enable-long-integers], 
+[Specify usage of 64 bits integers. ]),
+[
+pac_cv_long_integers="yes";
+]
+dnl ,
+dnl [pac_cv_long_integers="no";]
+)
+if test x"$pac_cv_long_integers" == x"yes" ; then
+   AC_MSG_RESULT([yes.])
+else
+ pac_cv_long_integers="no";
+ AC_MSG_RESULT([no.])
+fi
+]
+)
+
 dnl @synopsis PAC_FORTRAN_HAVE_PSBLAS( [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
 dnl
 dnl Will try to compile and link a program using the PSBLAS library
diff --git a/configure b/configure
index ae96d071..6efc2d91 100755
--- a/configure
+++ b/configure
@@ -752,6 +752,7 @@ with_library_path
 with_include_path
 with_module_path
 enable_dependency_tracking
+enable_long_integers
 with_blas
 with_lapack
 with_rsb
@@ -1397,6 +1398,7 @@ Optional Features:
                           in serial mode.
   --disable-dependency-tracking  speeds up one-time build
   --enable-dependency-tracking   do not reject slow dependency extractors
+  --enable-long-integers  Specify usage of 64 bits integers.
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -6588,6 +6590,30 @@ rm -f conftest*
 fi
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we want long (8 bytes) integers" >&5
+$as_echo_n "checking whether we want long (8 bytes) integers... " >&6; }
+# Check whether --enable-long-integers was given.
+if test "${enable_long_integers+set}" = set; then :
+  enableval=$enable_long_integers;
+pac_cv_long_integers="yes";
+
+
+fi
+
+if test x"$pac_cv_long_integers" == x"yes" ; then
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes." >&5
+$as_echo "yes." >&6; }
+else
+ pac_cv_long_integers="no";
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no." >&5
+$as_echo "no." >&6; }
+fi
+
+
+if test x"$pac_cv_long_integers" == x"yes" ; then
+   FDEFINES="$psblas_cv_define_prepend-DLONG_INTEGERS $FDEFINES";
+fi
+
 #
 # Tests for support of various Fortran features; some of them are critical,
 # some optional
diff --git a/configure.ac b/configure.ac
index 8207becc..ab92e0c9 100755
--- a/configure.ac
+++ b/configure.ac
@@ -516,6 +516,10 @@ else
  )
 fi
 
+PAC_ARG_LONG_INTEGERS
+if test x"$pac_cv_long_integers" == x"yes" ; then
+   FDEFINES="$psblas_cv_define_prepend-DLONG_INTEGERS $FDEFINES";
+fi
 
 #
 # Tests for support of various Fortran features; some of them are critical,