diff --git a/README.compiler b/README.compiler
index bc539e8..77e2b94 100644
--- a/README.compiler
+++ b/README.compiler
@@ -1,16 +1,16 @@
 files named compiler.mach.os.comp indicate the
-Fortran compilation and load flags for use on the 
+Fortran compilation and load flags for use on the
 machine "mach" that uses the UNIX operating
 system "os" and for the compiler "comp".
 
 Each line contains the name of an atribute that
 can be set, and equals sign (=) and the value
-that is to be ascribed to the atribute. If the 
-latter contains spaces/blanks, it should be 
+that is to be ascribed to the atribute. If the
+latter contains spaces/blanks, it should be
 surrounded by ''. If no value is to be
 ascribed, there is no need for a string beyond =.
 
-Look at any of the compiler.*.*.* files for 
+Look at any of the compiler.*.*.* files for
 suggestions and examples.
 
 Current atribute are (with defaults/options):
@@ -20,7 +20,7 @@ BASIC             compiler basic compile options (-c)
 LIBCMD            compiler link library options
 MODCMD            compiler module create options (-module $MOD -I$MOD)
 MODCMDB           compiler module access options (-I$MOD)
-MVMODS ':'        command needed to move module info files to module diectory 
+MVMODS ':'        command needed to move module info files to module diectory
 OPTIMIZATION      compiler optimization level (-O)
 NOOPTIMIZATION    compiler no optimization level (-O0)
 DEBUG             compiler debug flag (-g)
@@ -56,4 +56,5 @@ MKL_PARDISO       options to link MKL Pardiso codes (-lgalahad_mkl_pardiso)
 WSMP              options to link WSMP codes  (-lgalahad_wsmp)
 NOT95             is the compiler at least fortran 95? (IS95/NOT95)
 NOT64             is the operating system 64-bit? (IS64/NOT64)
+INTEGER           compile with this integer type (32bit/64bit)
 BINSHELL          the default UNIX shell used (usually sh)
diff --git a/compiler.all.all.gfo b/compiler.all.all.gfo
index 8c5712b..af64299 100644
--- a/compiler.all.all.gfo
+++ b/compiler.all.all.gfo
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.all.all.ifr b/compiler.all.all.ifr
index 3787ae7..9372b4b 100644
--- a/compiler.all.all.ifr
+++ b/compiler.all.all.ifr
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.all.all.ifx b/compiler.all.all.ifx
index 4a795f7..25cc609 100644
--- a/compiler.all.all.ifx
+++ b/compiler.all.all.ifx
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.binarybuilder.bb.fc b/compiler.binarybuilder.bb.fc
index 11f7f65..ecbddeb 100644
--- a/compiler.binarybuilder.bb.fc
+++ b/compiler.binarybuilder.bb.fc
@@ -47,6 +47,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=bash
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.cry.unc.f90 b/compiler.cry.unc.f90
index d874dbb..6c5abfa 100644
--- a/compiler.cry.unc.f90
+++ b/compiler.cry.unc.f90
@@ -48,6 +48,7 @@
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.mac64.osx.gfo b/compiler.mac64.osx.gfo
index 8adfb9a..55bf403 100644
--- a/compiler.mac64.osx.gfo
+++ b/compiler.mac64.osx.gfo
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.mac64.osx.ifr b/compiler.mac64.osx.ifr
index 999173f..50f05c0 100644
--- a/compiler.mac64.osx.ifr
+++ b/compiler.mac64.osx.ifr
@@ -55,6 +55,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.mac64.osx.n95 b/compiler.mac64.osx.n95
index a1d3a1e..1397386 100644
--- a/compiler.mac64.osx.n95
+++ b/compiler.mac64.osx.n95
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-Wl,-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.lnx.fla b/compiler.pc.lnx.fla
index 0c628ba..0ec30b5 100644
--- a/compiler.pc.lnx.fla
+++ b/compiler.pc.lnx.fla
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.lnx.gfo b/compiler.pc.lnx.gfo
index 3b355cf..9c89d69 100644
--- a/compiler.pc.lnx.gfo
+++ b/compiler.pc.lnx.gfo
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.lnx.ifr b/compiler.pc.lnx.ifr
index eab57c9..c461ffa 100644
--- a/compiler.pc.lnx.ifr
+++ b/compiler.pc.lnx.ifr
@@ -56,6 +56,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.lnx.ifx b/compiler.pc.lnx.ifx
index a9a2f3b..3c3df86 100644
--- a/compiler.pc.lnx.ifx
+++ b/compiler.pc.lnx.ifx
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.lnx.l95 b/compiler.pc.lnx.l95
index bbe4370..3528951 100644
--- a/compiler.pc.lnx.l95
+++ b/compiler.pc.lnx.l95
@@ -48,6 +48,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.lnx.n95 b/compiler.pc.lnx.n95
index f8617a0..3a36650 100644
--- a/compiler.pc.lnx.n95
+++ b/compiler.pc.lnx.n95
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-Wl,-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.lnx.nvc b/compiler.pc.lnx.nvc
index e59f0e6..2cb72ff 100644
--- a/compiler.pc.lnx.nvc
+++ b/compiler.pc.lnx.nvc
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.lnx.xlf b/compiler.pc.lnx.xlf
index eb8e21e..8e5b900 100644
--- a/compiler.pc.lnx.xlf
+++ b/compiler.pc.lnx.xlf
@@ -48,6 +48,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.mgw.dgf b/compiler.pc.mgw.dgf
index 0bbf4ff..b352c65 100644
--- a/compiler.pc.mgw.dgf
+++ b/compiler.pc.mgw.dgf
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.mgw.ifr b/compiler.pc.mgw.ifr
index 4ba6e12..7a9e10e 100644
--- a/compiler.pc.mgw.ifr
+++ b/compiler.pc.mgw.ifr
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc.mgw.n95 b/compiler.pc.mgw.n95
index 2aac4cf..43d5ce2 100644
--- a/compiler.pc.mgw.n95
+++ b/compiler.pc.mgw.n95
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-Wl,-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.fla b/compiler.pc64.lnx.fla
index 321b766..0885cea 100644
--- a/compiler.pc64.lnx.fla
+++ b/compiler.pc64.lnx.fla
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.g10 b/compiler.pc64.lnx.g10
index cf8517d..bc755bd 100644
--- a/compiler.pc64.lnx.g10
+++ b/compiler.pc64.lnx.g10
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.g11 b/compiler.pc64.lnx.g11
index b6e08a1..9957e60 100644
--- a/compiler.pc64.lnx.g11
+++ b/compiler.pc64.lnx.g11
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.g12 b/compiler.pc64.lnx.g12
index 92e47aa..fc992ed 100644
--- a/compiler.pc64.lnx.g12
+++ b/compiler.pc64.lnx.g12
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.gfo b/compiler.pc64.lnx.gfo
index 7379312..18663f3 100644
--- a/compiler.pc64.lnx.gfo
+++ b/compiler.pc64.lnx.gfo
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.ifr b/compiler.pc64.lnx.ifr
index 3787ae7..9372b4b 100644
--- a/compiler.pc64.lnx.ifr
+++ b/compiler.pc64.lnx.ifr
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.ifx b/compiler.pc64.lnx.ifx
index 9f488a9..0379584 100644
--- a/compiler.pc64.lnx.ifx
+++ b/compiler.pc64.lnx.ifx
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.l95 b/compiler.pc64.lnx.l95
index 301a684..d5b05b1 100644
--- a/compiler.pc64.lnx.l95
+++ b/compiler.pc64.lnx.l95
@@ -48,6 +48,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.n95 b/compiler.pc64.lnx.n95
index cb62fcc..74645fa 100644
--- a/compiler.pc64.lnx.n95
+++ b/compiler.pc64.lnx.n95
@@ -51,6 +51,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-Wl,-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.nvc b/compiler.pc64.lnx.nvc
index 974cb41..9c8bda5 100644
--- a/compiler.pc64.lnx.nvc
+++ b/compiler.pc64.lnx.nvc
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.nvf b/compiler.pc64.lnx.nvf
index 36669ca..118d90b 100644
--- a/compiler.pc64.lnx.nvf
+++ b/compiler.pc64.lnx.nvf
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.lnx.xlf b/compiler.pc64.lnx.xlf
index 2bf4086..b361e30 100644
--- a/compiler.pc64.lnx.xlf
+++ b/compiler.pc64.lnx.xlf
@@ -48,6 +48,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.pc64.msys2.gfo b/compiler.pc64.msys2.gfo
index f2d13c2..b62374f 100644
--- a/compiler.pc64.msys2.gfo
+++ b/compiler.pc64.msys2.gfo
@@ -48,6 +48,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 MA97BUG=gfo
 SHARED='-shared'
diff --git a/compiler.ppc.aix.n95 b/compiler.ppc.aix.n95
index c571b2d..af8703c 100644
--- a/compiler.ppc.aix.n95
+++ b/compiler.ppc.aix.n95
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-Wl,-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.ppc.aix.x95 b/compiler.ppc.aix.x95
index a16e98f..b933ced 100644
--- a/compiler.ppc.aix.x95
+++ b/compiler.ppc.aix.x95
@@ -48,6 +48,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.sun.lnx.gfo b/compiler.sun.lnx.gfo
index fee14dc..d254e93 100644
--- a/compiler.sun.lnx.gfo
+++ b/compiler.sun.lnx.gfo
@@ -49,6 +49,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=IS64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-shared'
 PASTIX='-lgalahad_pastix'
diff --git a/compiler.sun.sol.n95 b/compiler.sun.sol.n95
index 150c529..13f2cfa 100644
--- a/compiler.sun.sol.n95
+++ b/compiler.sun.sol.n95
@@ -50,6 +50,7 @@ MKL_PARDISO='-lgalahad_mkl_pardiso'
 WSMP='-lgalahad_wsmp'
 NOT95=IS95
 NOT64=NOT64
+INTEGER=32bit
 BINSHELL=sh
 SHARED='-Wl,-shared'
 PASTIX='-lgalahad_pastix'