bug#79534: Icecat fails to build with MOZ_PGO=1

[0xningen--- via bug-gnuzilla via GNUzilla bug reports]

Hi,

When building with a .mozconfig that has ac_add_options MOZ_PGO=1​ icecat fails 
to build after generating the profile and ld says it fails to link the final 
link because theres undefined references 
`/usr/bin/ld:%20/usr/lib/clang/20/lib/linux/libclang_rt.profile 
x86_64.a(InstrProfilingPlatformLinux.c.o):%20in%20function%20%60__llvm_profile_begin_data':`

Sent with [Proton Mail](https://proton.me/mail/home) secure email.