When link-time optimization (LTO) is used, some warnings are reported
while linking, and the flags must be passed to the linker to enable or
disable them.
-W* also catches -Wl,* and -Wa,*, but the former is already accounted
for in an earlier switch case, and the latter is already passed through.
* build-aux/ltmain.in: Pass through all warning flags to the linker.
---
build-aux/ltmain.in | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/build-aux/ltmain.in b/build-aux/ltmain.in
index 294ed43c..0f2c81f8 100644
--- a/build-aux/ltmain.in
+++ b/build-aux/ltmain.in
@@ -5664,7 +5664,7 @@ func_mode_link ()
# --unwindlib=* select unwinder library with clang
# -f{file|debug|macro|profile}-prefix-map=* needed for lto linking
# -Wa,* Pass flags directly to the assembler
- # -Werror, -Werror=* Report (specified) warnings as errors
+ # -W* Warnings, needed for lto
-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=*|--target=*|
\
-O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-no-canonical-prefixes|
\
@@ -5672,7 +5672,7 @@ func_mode_link ()
-specs=*|-fsanitize=*|-fno-sanitize*|-shared-libsan|-static-libsan| \
-ffile-prefix-map=*|-fdebug-prefix-map=*|-fmacro-prefix-map=*|-fprofile-prefix-map=*|
\
-fdiagnostics-color*|-frecord-gcc-switches| \
- -fuse-ld=*|-static-*|-fcilkplus|-Wa,*|-Werror|-Werror=*)
+ -fuse-ld=*|-static-*|-fcilkplus|-W*)
func_quote_arg pretty "$arg"
arg=$func_quote_arg_result
func_append compile_command " $arg"
--
2.50.1
