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From 59b6032698d10306ffb3be3cbf76690409d7f9a6 Mon Sep 17 00:00:00 2001
From: Richard Purdie <richard.purdie@linuxfoundation.org>
Date: Tue, 26 Nov 2024 09:57:36 +0000
Subject: [PATCH 2/7] ltmain.in: Don't encode RATHS which match default linker
paths
We don't want to add RPATHS which match default linker search paths, they're
a waste of space. This patch filters libtools list of paths to encoode and
removes the ones we don't need.
Libtool may be passed link paths of the form "/usr/lib/../lib" so normalize
the paths before comparision.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Upstream-Status: Submitted [https://lists.gnu.org/archive/html/libtool-patches/2021-10/msg00013.html]
---
build-aux/ltmain.in | 34 ++++++++++++++++++++++++++++------
1 file changed, 28 insertions(+), 6 deletions(-)
diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in
index c31faebd..44c7d81e 100644
--- a/build-aux/ltmain.in
+++ b/build-aux/ltmain.in
@@ -7782,8 +7782,16 @@ func_mode_link ()
esac
fi
else
- eval flag=\"$hardcode_libdir_flag_spec\"
- func_append dep_rpath " $flag"
+ # We only want to hardcode in an rpath if it isn't in the
+ # default dlsearch path.
+ func_normal_abspath "$libdir"
+ libdir_norm=$func_normal_abspath_result
+ case " $sys_lib_dlsearch_path " in
+ *" $libdir_norm "*) ;;
+ *) eval flag=\"$hardcode_libdir_flag_spec\"
+ func_append dep_rpath " $flag"
+ ;;
+ esac
fi
elif test -n "$runpath_var"; then
case "$perm_rpath " in
@@ -8516,8 +8524,16 @@ func_mode_link ()
esac
fi
else
- eval flag=\"$hardcode_libdir_flag_spec\"
- func_append rpath " $flag"
+ # We only want to hardcode in an rpath if it isn't in the
+ # default dlsearch path.
+ func_normal_abspath "$libdir"
+ libdir_norm=$func_normal_abspath_result
+ case " $sys_lib_dlsearch_path " in
+ *" $libdir_norm "*) ;;
+ *) eval flag=\"$hardcode_libdir_flag_spec\"
+ rpath+=" $flag"
+ ;;
+ esac
fi
elif test -n "$runpath_var"; then
case "$perm_rpath " in
@@ -8571,8 +8587,14 @@ func_mode_link ()
esac
fi
else
- eval flag=\"$hardcode_libdir_flag_spec\"
- func_append rpath " $flag"
+ # We only want to hardcode in an rpath if it isn't in the
+ # default dlsearch path.
+ case " $sys_lib_dlsearch_path " in
+ *" $libdir "*) ;;
+ *) eval flag=\"$hardcode_libdir_flag_spec\"
+ func_append rpath " $flag"
+ ;;
+ esac
fi
elif test -n "$runpath_var"; then
case "$finalize_perm_rpath " in
--
2.39.5
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