[PATCH] Fix failure of coarray tests on hpux

[John David Anglin]

The attached change fixes the fortran coarray tests on hpux.  On hpux,  
it is necessary
to link directly against libatomic.

Tested on hppa2.0w-hp-hpux11.11 and hppa64-hp-hpux11.11.
Okay for trunk?

Dave
--
John David Anglin       dave.ang...@bell.net


2014-12-07  John David Anglin  <dang...@gcc.gnu.org>

        Pr testsuite/62250
        * lib/gfortran.exp: Add libatomic library search path.
        * gfortran.dg/coarray/caf.exp: Add -latomic to test options.
        * gfortran.dg/coarray_lib_comm_1.f90: Likewise.

Index: lib/gfortran.exp
===================================================================
--- lib/gfortran.exp    (revision 218435)
+++ lib/gfortran.exp    (working copy)
@@ -102,6 +102,13 @@
       if [file exists "${gccpath}/libgfortran/libgforbegin.a"] {
           append flags "-L${gccpath}/libgfortran "
       }
+      if [file exists "${gccpath}/libatomic/.libs/libatomic.${shlib_ext}"] {
+         append flags "-L${gccpath}/libatomic/.libs "
+         append ld_library_path ":${gccpath}/libatomic/.libs"
+      }
+      if [file exists "${gccpath}/libatomic/libatomic.a"] {
+          append flags "-L${gccpath}/libatomic "
+      }
       if [file exists "${gccpath}/libquadmath/.libs/libquadmath.a"] {
           # Some targets use libquadmath.a%s in their specs, so they need a -B 
option
           # for uninstalled testing.
Index: gfortran.dg/coarray/caf.exp
===================================================================
--- gfortran.dg/coarray/caf.exp (revision 218435)
+++ gfortran.dg/coarray/caf.exp (working copy)
@@ -65,13 +65,13 @@
 
     foreach flags $option_list {
        verbose "Testing $nshort (single), $flags" 1
-       dg-test $test "-fcoarray=single $flags" "" 
+       dg-test $test "-fcoarray=single $flags -latomic" "" 
        cleanup-modules ""
     }
 
     foreach flags $option_list {
        verbose "Testing $nshort (libcaf_single), $flags" 1
-       dg-test $test "-fcoarray=lib $flags -lcaf_single" ""
+       dg-test $test "-fcoarray=lib $flags -lcaf_single -latomic" ""
        cleanup-modules ""
     }
 }
Index: gfortran.dg/coarray_lib_comm_1.f90
===================================================================
--- gfortran.dg/coarray_lib_comm_1.f90  (revision 218435)
+++ gfortran.dg/coarray_lib_comm_1.f90  (working copy)
@@ -1,5 +1,5 @@
 ! { dg-do run }
-! { dg-options "-fdump-tree-original -fcoarray=lib -lcaf_single" }
+! { dg-options "-fdump-tree-original -fcoarray=lib -lcaf_single -latomic" }
 !
 ! Some dependency-analysis check for coarray communication
 !