From: Richard Purdie <richard.purdie@linuxfoundation.org>
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Subject: [PATCH 05/12] ltmain.in: Don't encode RATHS which match default linker paths
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We don't want to add RPATHS which match default linker search paths, they're
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a waste of space. This patch filters libtools list of paths to encoode and
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removes the ones we don't need.
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Libtool may be passed link paths of the form "/usr/lib/../lib" so normalize
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the paths before comparision.
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Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Upstream-Status: Submitted [https://lists.gnu.org/archive/html/libtool-patches/2021-10/msg00013.html]
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diff -u b/build-aux/ltmain.in b/build-aux/ltmain.in
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--- b/build-aux/ltmain.in
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+++ b/build-aux/ltmain.in 2012-08-22 11:01:34.191345989 -0700
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@@ -7286,8 +7286,16 @@
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esac
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fi
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else
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- eval flag=\"$hardcode_libdir_flag_spec\"
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- func_append dep_rpath " $flag"
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+ # We only want to hardcode in an rpath if it isn't in the
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+ # default dlsearch path.
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+ func_normal_abspath "$libdir"
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+ libdir_norm=$func_normal_abspath_result
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+ case " $sys_lib_dlsearch_path " in
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+ *" $libdir_norm "*) ;;
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+ *) eval flag=\"$hardcode_libdir_flag_spec\"
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+ func_append dep_rpath " $flag"
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+ ;;
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+ esac
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fi
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elif test -n "$runpath_var"; then
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case "$perm_rpath " in
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@@ -8019,8 +8027,16 @@
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esac
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fi
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else
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- eval flag=\"$hardcode_libdir_flag_spec\"
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- func_append rpath " $flag"
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+ # We only want to hardcode in an rpath if it isn't in the
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+ # default dlsearch path.
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+ func_normal_abspath "$libdir"
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+ libdir_norm=$func_normal_abspath_result
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+ case " $sys_lib_dlsearch_path " in
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+ *" $libdir_norm "*) ;;
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+ *) eval flag=\"$hardcode_libdir_flag_spec\"
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+ rpath+=" $flag"
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+ ;;
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+ esac
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fi
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elif test -n "$runpath_var"; then
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case "$perm_rpath " in
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@@ -8070,8 +8086,14 @@
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esac
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fi
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else
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- eval flag=\"$hardcode_libdir_flag_spec\"
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- func_append rpath " $flag"
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+ # We only want to hardcode in an rpath if it isn't in the
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+ # default dlsearch path.
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+ case " $sys_lib_dlsearch_path " in
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+ *" $libdir "*) ;;
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+ *) eval flag=\"$hardcode_libdir_flag_spec\"
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+ func_append rpath " $flag"
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+ ;;
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+ esac
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fi
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elif test -n "$runpath_var"; then
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case "$finalize_perm_rpath " in
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