fixed libpio for autotools builds with fortran info, added FCFLAGS

configure.ac

@@ -63,6 +63,27 @@ fi
 # Find and learn about the Fortran compiler.
 AC_PROG_FC
 
+# Compiler with version information. This consists of the full path
+# name of the compiler and the reported version number.
+AC_SUBST([FC_VERSION])
+# Strip anything that looks like a flag off of $FC
+FC_NOFLAGS=`echo $FC | sed 's/ -.*//'`
+
+if `echo $FC_NOFLAGS | grep ^/ >/dev/null 2>&1`; then
+  FC_VERSION="$FC"
+else
+  FC_VERSION="$FC";
+  for x in `echo $PATH | sed -e 's/:/ /g'`; do
+    if test -x $x/$FC_NOFLAGS; then
+      FC_VERSION="$x/$FC"
+      break
+    fi
+  done
+fi
+if test -n "$fc_version_info"; then
+  FC_VERSION="$FC_VERSION ( $fc_version_info)"
+fi
+
 # Always use malloc in autotools builds.
 AC_DEFINE([PIO_USE_MALLOC], [1], [use malloc for memory])
 
@@ -363,10 +384,10 @@ AC_SUBST([enable_shared])
 AC_SUBST([enable_static])
 AC_SUBST([CFLAGS])
 AC_SUBST([CPPFLAGS])
+AC_SUBST([FFLAGS])
+AC_SUBST([FCFLAGS])
 AC_SUBST([LDFLAGS])
-AC_SUBST([AM_CFLAGS])
-AC_SUBST([AM_CPPFLAGS])
-AC_SUBST([AM_LDFLAGS])
+AC_SUBST([FPPFLAGS]) # ignored by autotools
 AC_SUBST(HAS_PNETCDF,[$enable_pnetcdf])
 AC_SUBST(HAS_LOGGING, [$enable_logging])
 AC_SUBST(HAS_SZIP_WRITE, [$have_szip_write])

libpio.settings.in

@@ -21,6 +21,7 @@ Extra libraries:	@LIBS@
 
 Fortran Compiler:       @FC_VERSION@
 FFLAGS:                 @FFLAGS@
+FCFLAGS:                @FCFLAGS@
 FPPFLAGS:               @FPPFLAGS@
 
 # Features

src/CMakeLists.txt

@@ -42,5 +42,6 @@ set(CPPFLAGS ${CPPFLAGS} PARENT_SCOPE)
 if (PIO_ENABLE_FORTRAN)
   add_subdirectory (flib)
   set(FFLAGS ${FFLAGS} PARENT_SCOPE)
+  set(FCFLAGS ${FCFLAGS} PARENT_SCOPE)
   set(FPPFLAGS ${FPPFLAGS} PARENT_SCOPE)
 endif ()