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From: Richard Purdie <richard.purdie@linuxfoundation.org>
Subject: [PATCH 11/12] ltmain.in: Handle prefix-map compiler options correctly
If lto is enabled, we need the prefix-map variables to be passed to the linker.
Add these to the list of options libtool passes through.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Upstream-Status: Submitted [https://lists.gnu.org/archive/html/libtool-patches/2021-10/msg00019.html]
Index: libtool-2.4.6/build-aux/ltmain.in
===================================================================
--- libtool-2.4.6.orig/build-aux/ltmain.in
+++ libtool-2.4.6/build-aux/ltmain.in
@@ -5424,9 +5424,10 @@ func_mode_link ()
# --sysroot=* for sysroot support
# -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
# -stdlib=* select c++ std lib with clang
+ # -f*-prefix-map* needed for lto linking
-64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
-t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
- -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*)
+ -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*|-f*-prefix-map*)
func_quote_for_eval "$arg"
arg=$func_quote_for_eval_result
func_append compile_command " $arg"
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