try to get rid of libunwind

.cirrus.yml

@@ -26,10 +26,10 @@ task:
   - export ARCHS_STANDARD_INCLUDING_64_BIT="i386 x86_64"
   - export ARCHS_UNIVERSAL_IPHONE_OS="i386 x86_64"
   - export VALID_ARCHS="i386 x86_64"
-  - find /Applications/Xcode-13.4.1.app -name libunwind.dylib
+  - #find /Applications/Xcode-13.4.1.app -name libunwind.dylib
   - export CC=/Applications/Xcode-13.4.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
-  - export CFLAGS="-O2 -Wno-macro-redefined -isysroot /Applications/Xcode-13.4.1.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator15.5.sdk -arch x86_64 -miphoneos-version-min=10.0"
-  - #make TARGET=CORE2 DYNAMIC_ARCH=1 NUM_THREADS=32 HOSTCC=clang NOFORTRAN=1
+  - export CFLAGS="-O2 -unwindlib=none -Wno-macro-redefined -isysroot /Applications/Xcode-13.4.1.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator15.5.sdk -arch x86_64 -miphoneos-version-min=10.0"
+  - make TARGET=CORE2 DYNAMIC_ARCH=1 NUM_THREADS=32 HOSTCC=clang NOFORTRAN=1
   always:
     config_artifacts:
       path: "*conf*"