Clang no longer supports passing flags via --extra-cflags=, causing immediate make failure about freeswitch HOT 7 CLOSED

can you give me some more info on steps to reproduce for this myself?

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To reproduce you must be on macOS Catalina 10.15 and install FS using macFI or manually:

1. Install FS prerequisites from homebrew
2. Download master or GA
3. bootstrap if master
4. ./configure
5. make. <- fails in first 25 lines

I modified 1 files (attached) and got past the error although probably not a permanent solution:
freeswitch/make.in to move $(VISIBILITY_FLAG) to cflags.
libs/libvpx/Makefile: libs/libvpx/.update
cd libs/libvpx && CC="$(CC)" CXX="$(CXX)" CFLAGS="$(CFLAGS) $(VISIBILITY_FLAG)" CXXFLAGS="$(CXXFLAGS)" LDFLAGS="$(LDFLAGS)" ./configure --enable-pic --disable-docs --disable-examples --disable-install-bins --disable-install-srcs --disable-unit-tests --size-limit=16384x16384
Makefile.in.txt

I modified **3 files
** (attached) to make sure Catalina 10.15 was detected:
libs/libvpx/configure to handle Catalina SSE
libs/libvpx/build/make/configure.sh to handle Catalina SSE
libs/libvpx/build/make/configure.sh to handle Catalina SSE

configure.txt
configure.sh.txt
iosbuild.sh.txt

And after all that, make now fails on what looks like an obsoleted compiler warning option. I found many instances on the web where '-Wno-extended-offsetof' is no longer valid and must be changed to '-Wno-invalid-offsetof'? [-Wunknown-warning-option] See attached make. If you want a separate problem opened then let me know

make 1.txt

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#70

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can you check out this PR please

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Good!

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I have been trying to figure out how to make pull changes, no luck so far. So extra mullah if you squeeze in my additions to three 3 Libvpx files above to go to darwin25 so Libvpx compiles with correct sse code.

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Fixed by #70

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