fortran FC patch

[Michael R Nolta]

Hi,

Here's a small patch to automake-1.8 to support the new "FC" fortran 
interface in autoconf (AC_PROG_FC,FC,FCFLAGS). Essentially I just copied 
the F77 parts and replaced F77->FC, adding a new language with name "fc".

The patch is simple enough that it's probably ok, and it seems to work. 
The one bit which I'm not sure about regards file extensions. I split 
them between "f77" and "fc", allocating ".f" and ".for" to the former, 
".f90" and ".f95" to the latter. This probably breaks stuff which 
assumed ".f90" was handled by f77.

-Mike

diff -Nur automake-1.8.orig/automake.in automake-1.8/automake.in
--- automake-1.8.orig/automake.in       Mon Dec  8 12:53:57 2003
+++ automake-1.8/automake.in    Sat Dec 13 00:34:11 2003
@@ -790,7 +790,22 @@
                   'lder' => 'F77LD',
                   'ld' => '$(F77)',
                   'pure' => 1,
-                  'extensions' => ['.f', '.for', '.f90']);
+                  'extensions' => ['.f', '.for']);
+
+# Fortran
+register_language ('name' => 'fc',
+                  'Name' => 'Fortran',
+                  'linker' => 'FCLINK',
+                  'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) 
$(LDFLAGS) -o $@',
+                  'flags' => ['FFLAGS'],
+                  'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
+                  'compiler' => 'FCCOMPILE',
+                  'compile_flag' => '-c',
+                  'output_flag' => '-o',
+                  'lder' => 'FCLD',
+                  'ld' => '$(FC)',
+                  'pure' => 1,
+                  'extensions' => ['.f90', '.f95']);
 
 # Preprocessed Fortran 77
 #
@@ -4862,6 +4877,12 @@
 
 # Rewrite a single Fortran 77 file.
 sub lang_f77_rewrite
+{
+    return LANG_PROCESS;
+}
+
+# Rewrite a single Fortran file.
+sub lang_fc_rewrite
 {
     return LANG_PROCESS;
 }
diff -Nur automake-1.8.orig/lib/Automake/Variable.pm 
automake-1.8/lib/Automake/Variable.pm
--- automake-1.8.orig/lib/Automake/Variable.pm  Mon Dec  8 10:34:52 2003
+++ automake-1.8/lib/Automake/Variable.pm       Sat Dec 13 00:27:25 2003
@@ -175,6 +175,8 @@
    CXXFLAGS => 'AC_PROG_CXX',
    F77 => 'AC_PROG_F77',
    F77FLAGS => 'AC_PROG_F77',
+   FC => 'AC_PROG_FC',
+   FCFLAGS => 'AC_PROG_FC',
    RANLIB => 'AC_PROG_RANLIB',
    YACC => 'AC_PROG_YACC',
    );