iOS 14.5 compile error

[slajar]

I patched polly to compile against iOS 14.5 and updated boost to 1.7.0-p0 but I still get this compiler error, which is obviously a boost compiling error. Any help is appreciated.

clang: error: unknown argument: '-fcoalesce-templates'
darwin.compile.c++ bin.v2/libs/filesystem/build/darwin-iphoneos/debug/architecture-arm/instruction-set-armv7/link-static/target-os-iphone/threading-multi/visibility-hidden/windows_file_codecvt.o

    "xcrun" "clang++" "-arch" "arm64" "-isysroot" "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.5.sdk"   -fvisibility-inlines-hidden -fcoalesce-templates -pthread -O0 -fno-inline -Wall -g -fvisibility=hidden -gdwarf-2 -fexceptions -Wno-long-double -std=c++14 -miphoneos-version-min=10.0 -std=c++14 -DBOOST_ALL_NO_LIB=1 -DBOOST_FILESYSTEM_STATIC_LINK=1 -DBOOST_SP_NO_SYNC  -I"." -c -o "bin.v2/libs/filesystem/build/darwin-iphoneos/debug/architecture-arm/instruction-set-armv7/link-static/target-os-iphone/threading-multi/visibility-hidden/windows_file_codecvt.o" "libs/filesystem/src/windows_file_codecvt.cpp"

clang: error: unknown argument: '-fcoalesce-templates'
...skipped <pbin.v2/libs/filesystem/build/darwin-iphoneos/debug/architecture-arm/instruction-set-armv7/link-static/target-os-iphone/threading-multi/visibility-hidden>libboost_filesystem-mt-d.a(clean) for lack of <pbin.v2/libs/filesystem/build/darwin-iphoneos/debug/architecture-arm/instruction-set-armv7/link-static/target-os-iphone/threading-multi/visibility-hidden>codecvt_error_category.o...
...skipped <pbin.v2/libs/filesystem/build/darwin-iphoneos/debug/architecture-arm/instruction-set-armv7/link-static/target-os-iphone/threading-multi/visibility-hidden>libboost_filesystem-mt-d.a for lack of <pbin.v2/libs/filesystem/build/darwin-iphoneos/debug/architecture-arm/instruction-set-armv7/link-static/target-os-iphone/threading-multi/visibility-hidden>codecvt_error_category.o...
...skipped <p/Users/<user>/.hunter/_Base/9cb4184/d4f530e/aa34bad/Build/Boost/__filesystem/Source/stage/lib>libboost_filesystem-mt-d.a for lack of <pbin.v2/libs/filesystem/build/darwin-iphoneos/debug/architecture-arm/instruction-set-armv7/link-static/target-os-iphone/threading-multi/visibility-hidden>libboost_filesystem-mt-d.a...
...failed updating 16 targets...

** BUILD FAILED **


The following build commands failed:
  PhaseScriptExecution Generate\ Boost-filesystem-ios-prefix/src/Boost-filesystem-ios-stamp/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)/Boost-filesystem-ios-build /Users/<user>/.hunter/_Base/9cb4184/d4f530e/aa34bad/Build/Boost/__filesystem/Build/Hunter.build/Debug-iphoneos/Boost-filesystem-ios.build/Script-F7F6B02B5C3B808575DB6730.sh
(1 failure)