Try to tell clang differently to not use ios13.0-macabi

Author: arik-so

scripts/build_individual_libldk.py

@@ -55,8 +55,14 @@ def run(config: ScriptConfig):
 	os.makedirs(lipo_binary_directory, exist_ok=True)
 
 	child_environment = dict(os.environ)
-	child_environment['RUSTFLAGS'] = '--cfg=c_bindings -C link-arg=-mios-version-min=14.0'
+	child_environment['RUSTFLAGS'] = '--cfg=c_bindings'
 	child_environment['PATH'] = '/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin'
+	# stop cargo's obsession with x86_64-apple-ios13.0-macabi when nobody asked for it
+	child_environment['CFLAGS_x86_64_apple_ios_macabi'] = '--target=x86_64-apple-ios-macabi'
+	child_environment['CFLAGS_x86_64_apple_ios_macbi'] = '--target=x86_64-apple-ios-macabi'
+	child_environment['CFLAGS_x86_64_apple_ios13.0_macabi'] = '--target=x86_64-apple-ios-macabi'
+	child_environment['CFLAGS_x86_64_apple_ios13.0_macbi'] = '--target=x86_64-apple-ios-macabi'
+	# child_environment['RUSTFLAGS'] = '--cfg=c_bindings -C link-arg=-mios-version-min=14.0'
 	# child_environment['IPHONEOS_DEPLOYMENT_TARGET'] = '14.0'
 
 	# subprocess.check_call([RUSTUP_PATH, 'override', 'set', 'nightly-2022-05-13'], cwd=config.LDK_C_BINDINGS_DIRECTORY)