bug#25368: Libtool patch concerning using the NAG fortran compiler as linker

[Juergen Reuter]

Dear libtool developers,
here is a patch for the current libtool git repo when using the NAG 
Fortran compiler
(nagfor) to link exectuables or libraries. nagfor doesn't accept 
arguments passed twice,
but a setup in the ltmain.in does exactly this when using -openmp as a 
flag. To avoid
hiccups, I added the following patch  (below).
I would be grateful if you could push this to the libtool git repo!
Thanks a lot in advance!
Cheers,
    JRR

Patch:
diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in
index 4cd3818..d65ea72 100644
--- a/build-aux/ltmain.in
+++ b/build-aux/ltmain.in
@@ -5176,12 +5176,24 @@ func_mode_link ()

-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
       |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
-       func_append compiler_flags " $arg"
+        case $CC in
+           nagfor*) ;;
+           *)
+               func_append compiler_flags " $arg"
+               ;;
+       esac
        func_append compile_command " $arg"
        func_append finalize_command " $arg"
        case "$new_inherited_linker_flags " in
            *" $arg "*) ;;
-           * ) func_append new_inherited_linker_flags " $arg" ;;
+           *)
+               case $CC in
+                   nagfor*) ;;
+                   *)
+                       func_append new_inherited_linker_flags " $arg"
+                   ;;
+               esac
+               ;;
        esac
        continue
        ;;


--
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Juergen Reuter
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patch_nagfor
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