Remove redundant libtool patch.

autogen.sh

@@ -38,11 +38,6 @@ touch -r m4/ltversion.m4 m4/libtool.m4 || exit $?
 patch --forward --no-backup-if-mismatch -p1 -s -l -i maint/ltmain.sh.nag_pthread.patch
 exitcode=$?; test $exitcode -ne 0 && test $exitcode -ne 1 && exit $exitcode
 
-# Libtool might duplicate some of the compilation or linking flags (e.g. -fopenmp)
-# when calling the actual compiler, which is considered and error by nagfor:
-patch --forward --no-backup-if-mismatch -p1 -s -l -i maint/ltmain.sh.no_flag_duplication.patch
-exitcode=$?; test $exitcode -ne 0 && test $exitcode -ne 1 && exit $exitcode
-
 # All went fine since we have not exited before:
 exit 0
 

maint/ltmain.sh.no_flag_duplication.patch

---- a/config/ltmain.sh
-+++ b/config/ltmain.sh
-@@ -8539,11 +8539,33 @@ func_mode_link ()
- 	fi # linkmode = lib
-       done # for deplib in $libs
-       if test link = "$pass"; then
--	if test prog = "$linkmode"; then
--	  compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
--	  finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
--	else
--	  compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
-+	# Avoid duplication of the flags
-+	if test -n "$new_inherited_linker_flags"; then
-+	  if test prog = "$linkmode"; then
-+	    tmp_inherited_linker_flags_compile_deplibs=
-+	    tmp_inherited_linker_flags_finalize_deplibs=
-+	    for new_inherited_linker_flag in $new_inherited_linker_flags; do
-+	      case "$compile_command " in
-+	        *" $new_inherited_linker_flag "*) ;;
-+	        *) func_append tmp_inherited_linker_flags_compile_deplibs " $new_inherited_linker_flag" ;;
-+	      esac
-+	      case "$finalize_command " in
-+	        *" $new_inherited_linker_flag "*) ;;
-+	        *) func_append tmp_inherited_linker_flags_finalize_deplibs " $new_inherited_linker_flag" ;;
-+	      esac
-+	    done
-+	    compile_deplibs="$tmp_inherited_linker_flags_compile_deplibs $compile_deplibs"
-+	    finalize_deplibs="$tmp_inherited_linker_flags_finalize_deplibs $finalize_deplibs"
-+	  else
-+	    tmp_inherited_linker_flags_compiler_flags=
-+	    for new_inherited_linker_flag in $new_inherited_linker_flags; do
-+	      case "$compiler_flags " in
-+	        *" $new_inherited_linker_flag "*) ;;
-+	        *) func_append tmp_inherited_linker_flags_compiler_flags " $new_inherited_linker_flag" ;;
-+	      esac
-+	    done
-+	    compiler_flags="$compiler_flags "`$ECHO " $tmp_inherited_linker_flags_compiler_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
-+	  fi
- 	fi
-       fi
-       dependency_libs=$newdependency_libs