Add note about GFortran usability to docs

docs/api-mount.rst

@@ -4,19 +4,47 @@ Mounting UnifyCR
 
 In this section, we describe how to use the UnifyCR API in an application.
 
+.. Attention:: **Fortran Compatibility**
+
+   ``unifycr_mount`` and ``unifycr_unmount`` are now usable  with GFortran.
+   There is a known issue_ with the Intel Fortran compiler. Other Fortran
+   compilers are currently unknown.
+
 ---------------------------
 Mounting 
 ---------------------------
 
+In ``C`` applications, include *unifycr.h*. See writeread.c_ for a full
+example.
+
+.. code-block:: C
+    :caption: C
+
+        #include <unifycr.h>
+
+In ``Fortran`` applications, include *unifycrf.h*. See writeread.f90_ for a
+full example.
+
+.. code-block:: Fortran
+    :caption: Fortran
+
+        include 'unifycrf.h'
+
 To use the UnifyCR filesystem a user will have to provide a path prefix. All 
 file operations under the path prefix will be intercepted by the UnifyCR 
 filesystem. For instance, to use UnifyCR on all path prefixes that begin with 
 /tmp this would require a:
 
 .. code-block:: C
+    :caption: C
 
         unifycr_mount('/tmp', rank, rank_num, 0);
 
+.. code-block:: Fortran
+    :caption: Fortran
+
+        call UNIFYCR_MOUNT('/tmp', rank, size, 0, ierr);
+
 Where /tmp is the path prefix you want UnifyCR to intercept. The rank and rank 
 number is the rank you are currently on, and the number of tasks you have 
 running in your job. Lastly, the zero corresponds to the app id.
@@ -28,9 +56,21 @@ Unmounting
 When you are finished using UnifyCR in your application, you should unmount. 
 
 .. code-block:: C
+    :caption: C
 
         if (rank == 0) {
             unifycr_unmount();
         }
 
+.. code-block:: Fortran
+    :caption: Fortran
+
+        UNIFYCR_UNMOUNT(ierr);
+
 It is only necessary to call unmount once on rank zero.
+
+.. explicit external hyperlink targets
+
+.. _issue: https://github.com/LLNL/UnifyCR/issues/300
+.. _writeread.c: https://github.com/LLNL/UnifyCR/blob/dev/examples/src/writeread.c
+.. _writeread.f90: https://github.com/LLNL/UnifyCR/blob/dev/examples/src/writeread.f90

docs/build-intercept.rst

@@ -208,8 +208,19 @@ Steps for dynamic linking using gotcha:
 To intercept I/O calls using gotcha, use the following syntax to link an
 application.
 
+C
+^^^^^^^^^^^^^^
+
 .. code-block:: Bash
 
     $ mpicc -o test_write test_write.c \
         -I<unifycr>/include -L<unifycy>/lib -lunifycr_gotcha \
         -L<gotcha>/lib64 -lgotcha
+
+Fortran
+^^^^^^^^^^^^^^
+
+.. code-block:: Bash
+
+    $ mpif90 -o test_write test_write.F \
+        -I<unifycr>/include -L<unifycy>/lib -lunifycrf -lunifycr_gotcha