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ltmain.in: Parse additional clang options
clang uses -rtlib and --unwindlib to select proper compiler
runtime in some cases. Therefore pass these options to linker when found in
ldflags
* build-aux/ltmain.in: Handle clang linker options
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/libtool.git/commit/?id=725646bf095bf5c07c49ae38dd060f95bd95ae3c]
---
build-aux/ltmain.in | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in
index 037f009..ba5c816 100644
--- a/build-aux/ltmain.in
+++ b/build-aux/ltmain.in
@@ -5414,10 +5414,12 @@ func_mode_link ()
# -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
+ # -rtlib=* select c runtime lib with clang
+ # --unwindlib=* select unwinder library with clang
# -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=*| \
+ -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*|-rtlib=*|--unwindlib=*| \
-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
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