Tested on x86_64-darwin21, pushed to trunk, thanks
Iain
--- 8< ---
XCode compilers recognise the weak_framework linker option in the driver
and forward it. This patch makes GCC adopt the same behaviour.
PR target/116237
gcc/ChangeLog:
* config/darwin.h (SUBTARGET_DRIVER_SELF_SPECS): Add a spec for
weak_framework.
* config/darwin.opt: Handle weak_framework driver option.
Signed-off-by: Iain Sandoe <i...@sandoe.co.uk>
---
gcc/config/darwin.h | 2 ++
gcc/config/darwin.opt | 4 ++++
2 files changed, 6 insertions(+)
diff --git a/gcc/config/darwin.h b/gcc/config/darwin.h
index c09b9e9dc94..377599074a7 100644
--- a/gcc/config/darwin.h
+++ b/gcc/config/darwin.h
@@ -264,6 +264,8 @@ extern GTY(()) int darwin_ms_struct;
"%{weak_reference_mismatches*:\
-Xlinker -weak_reference_mismatches -Xlinker %*} \
%<weak_reference_mismatches*", \
+ "%{weak_framework*: -Xlinker -weak_framework -Xlinker %*} \
+ %<weak_framework*",
\
"%{whyload:-Xlinker -whyload} %<whyload", \
"%{whatsloaded:-Xlinker -whatsloaded} %<whatsloaded",
\
"%{w:-Xlinker -w}", \
diff --git a/gcc/config/darwin.opt b/gcc/config/darwin.opt
index 307a760629b..114048045b9 100644
--- a/gcc/config/darwin.opt
+++ b/gcc/config/darwin.opt
@@ -381,6 +381,10 @@ unexported_symbols_list
Driver RejectNegative Separate
-unexported_symbols_list <filename> Do not export the global symbols listed
in <filename>.
+weak_framework
+Driver RejectNegative Separate
+-weak_framework <framework> Make a weak link to the specified framework.
+
weak_reference_mismatches
Driver RejectNegative Separate
-weak_reference_mismatches <treatment> Specifies what to do if a symbol import
conflicts between file (weak in one and not in another) the default is to treat
the symbol as non-weak.
--
2.39.2 (Apple Git-143)
