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