[svn-r6883] Purpose:

Bug Fix

Description:
    Lots of things. Mostly, multiple libraries declared on the command
    line bothered some compilers. Then the order of the libraries is
    important. Then if you are building static, you don't want an
    "-lhdf5" flag in your compile line.

Solution:
    Various hacks to remove redundant libraries from the compile line and
    to keep the order of them and to replace -lhdf5 with the .a file when
    building static.

Platforms tested:
    Modi4 (Fortran & Parallel)
    Verbena (Fortran & C++)
    Arabica (Fortran)

Misc. update:

tools/misc/h5cc.in

@@ -202,6 +202,9 @@ for arg in $@ ; do
             do_link="yes"
             link_objs="$link_objs $arg"
           fi
+        elif test "x$ext" = "x.a"; then
+          # This is an archive that we're linking in
+          libraries=" $libraries $arg "
         else
           compile_args="$compile_args $arg"
           link_args="$link_args $arg"
@@ -229,8 +232,12 @@ fi
 
 if test "x$do_link" = "xyes"; then
   shared_link=""
+  libraries=" $libraries $LIBS "
+  link_args="$link_args -L${libdir}"
 
   if test "x$USE_SHARED_LIB" = "xyes"; then
+    libraries=" -lhdf5 $libraries "
+
     case "$kind" in
       gcc|linux*)           flag="-Wl,-rpath -Wl," ;;
       hpux*)                flag="-Wl,+b -Wl," ;;
@@ -243,20 +250,34 @@ if test "x$do_link" = "xyes"; then
     if test -n "$flag"; then
       shared_link="${flag}${libdir}"
     fi
-
-    libraries=" -lhdf5 $libraries "
-    link_args="$link_args -L${libdir}"
-
-    for l in $libraries; do
-      if ! echo $link_args | grep " $l " > /dev/null; then
-        link_args="$link_args $l "
-      fi
+  else
+    if echo "$libraries" | grep " -lhdf5 " > /dev/null; then
+      new_libraries=""
+      for lib in $libraries; do
+        case "$lib" in
+          -lhdf5)
+            new_libraries="$new_libraries ${libdir}/libhdf5.a"
+            ;;
+          *)
+            new_libraries="$new_libraries $lib"
+            ;;
+        esac
       done
+      libraries="$new_libraries"
     else
       link_args="$link_args ${libdir}/libhdf5.a"
     fi
+  fi
+
+  for lib in $libraries; do
+    if echo $link_args | grep " $lib " > /dev/null ||
+       echo $link_args | grep " $lib$" > /dev/null; then
+      :
+    else
+      link_args="$link_args $lib "
+    fi
+  done
 
-  link_args="$link_args $LIBS"
   $SHOW $CLINKER $LDFLAGS $clibpath $link_objs $link_args $shared_link
   status=$?
 fi