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ltmain.in: Handle prefix-map compiler options correctly
If lto is enabled, we need the prefix-map variables to be passed to the linker
to correctly link the objects using correctly mapped paths.
Add these to the list of options libtool passes through.
* build-aux/ltmain.in: Handle prefix-map compiler options
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
https://lists.gnu.org/archive/html/libtool-patches/2021-10/msg00019.html
https://lists.gnu.org/archive/html/libtool-patches/2024-01/msg00066.html
Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/libtool.git/commit/?id=cdf4bf702f11d17e06569936e8a433a77f791228]
---
build-aux/ltmain.in | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in
index 0a50f5b..037f009 100644
--- a/build-aux/ltmain.in
+++ b/build-aux/ltmain.in
@@ -5413,11 +5413,12 @@ func_mode_link ()
# -stdlib=* select c++ std lib with clang
# -fsanitize=* Clang/GCC memory and address sanitizer
# -fuse-ld=* Linker select flags for GCC
+ # -f{file|debug|macro|profile}-prefix-map* needed for lto linking
# -Wa,* Pass flags directly to the assembler
-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=*| \
- -specs=*|-fsanitize=*|-fuse-ld=*|-Wa,*)
+ -specs=*|-fsanitize=*|-fuse-ld=*|-ffile-prefix-map=*|-fdebug-prefix-map=*|-fmacro-prefix-map=*|-fprofile-prefix-map=*|-Wa,*)
func_quote_arg pretty "$arg"
arg=$func_quote_arg_result
func_append compile_command " $arg"
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