Merge in changes from [949] to [953] on 4.0 branch

to main trunk. These were:
* Absoft compiler issue (#68)
* Correct cygwin documentation (#85)

Refs #78.



git-svn-id: https://svn.nexusformat.org/code/trunk@954 ff5d1e40-2be0-497f-93bd-dc18237bd3c7

README.cygwin

@@ -1,14 +1,17 @@
-Set you PATH with
+The NeXus source code should build under cygwin, but note that
+HDF4 may not work (HDF5 and XML are fine). When building the HDF5
+library you may want to specify an explicit prefix for the 
+install location e.g.
 
-export PATH=/usr/autotools/devel/bin:$PATH
+    ./configure --prefix=/usr/local/hdf5  # for building HDF5
 
-the default "stable" autotools provided are not recent enough
-and you will get problems if you have to run autoconf/autoheader/automake
-or "autogen.sh"
+Otherwise you will need to configure NeXus with
 
-You need to install the hdf libraries - you can download a pre-compiled
-version from:
-
-http://nexus.isis.rl.ac.uk/kits/cygwin
+    ./configure --with=hdf5=/path/to/where/hdf5/went  # for building NeXus
 
+or it will not be able to locate the HDF5 libraries.
 
+Alternatively there is a native Windows kit available
+from http://download.nexusformat.org/kits/windows that supports
+HDF4/HDF5/XML and building applications under both Visual Studio
+and MinGW

test/NXtest.f90

@@ -79,7 +79,7 @@ program NXtest
          if (NXputslab(fileid, r8_buffer, (/1,1/), (/4,4/)) /= NX_OK) stop
          if (NXputattr(fileid, "ch_attribute", "NeXus") /= NX_OK) stop
          if (NXputattr(fileid, "i4_attribute", 42) /= NX_OK) stop
-         if (NXputattr(fileid, "r4_attribute", 3.14159265) /= NX_OK) stop
+         if (NXputattr(fileid, "r4_attribute", 3.141593_NXr4) /= NX_OK) stop
          if (NXgetdataID(fileid, dlink) /= NX_OK) stop
       if (NXclosedata(fileid) /= NX_OK) stop
       if (NXmakegroup(fileid, "data", "NXdata") /= NX_OK) stop

test/testsuite.at

@@ -404,7 +404,7 @@ Group: entry(NXentry) contains        8 items
           :   17.0000000  18.0000000  19.0000000  20.0000000
    ch_attribute : NeXus
    i4_attribute :       42
-   r4_attribute :    3.1415927
+   r4_attribute :    3.1415930
    target : /entry/r8_data
    Subgroup: sample(NXsample)
 Link Check OK