move TARGET_OS_VISION definition to umbrella header

Nimble.xcodeproj/project.pbxproj

@@ -108,7 +108,6 @@
 		1FE661571E6574E30035F243 /* ExpectationMessage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 1FE661561E6574E20035F243 /* ExpectationMessage.swift */; };
 		29EA59641B551ED2002D767E /* ThrowErrorTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 29EA59621B551ED2002D767E /* ThrowErrorTest.swift */; };
 		29EA59671B551EE6002D767E /* ThrowError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 29EA59651B551EE6002D767E /* ThrowError.swift */; };
-		37B050BA2AFE172B00B26672 /* NimblePrefixHeader.pch in Headers */ = {isa = PBXBuildFile; fileRef = 37B050B92AFE172B00B26672 /* NimblePrefixHeader.pch */; };
 		472FD1391B9E0A9700C7B8DA /* HaveCount.swift in Sources */ = {isa = PBXBuildFile; fileRef = 472FD1341B9E085700C7B8DA /* HaveCount.swift */; };
 		472FD13A1B9E0A9F00C7B8DA /* HaveCountTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 472FD1361B9E094B00C7B8DA /* HaveCountTest.swift */; };
 		4793854E1BA0BB2500296F85 /* ObjCHaveCountTest.m in Sources */ = {isa = PBXBuildFile; fileRef = 4793854C1BA0BB2500296F85 /* ObjCHaveCountTest.m */; };
@@ -294,7 +293,6 @@
 		1FE661561E6574E20035F243 /* ExpectationMessage.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ExpectationMessage.swift; sourceTree = "<group>"; };
 		29EA59621B551ED2002D767E /* ThrowErrorTest.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ThrowErrorTest.swift; sourceTree = "<group>"; };
 		29EA59651B551EE6002D767E /* ThrowError.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ThrowError.swift; sourceTree = "<group>"; };
-		37B050B92AFE172B00B26672 /* NimblePrefixHeader.pch */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = NimblePrefixHeader.pch; sourceTree = "<group>"; };
 		472FD1341B9E085700C7B8DA /* HaveCount.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = HaveCount.swift; sourceTree = "<group>"; };
 		472FD1361B9E094B00C7B8DA /* HaveCountTest.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = HaveCountTest.swift; sourceTree = "<group>"; };
 		4793854C1BA0BB2500296F85 /* ObjCHaveCountTest.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ObjCHaveCountTest.m; sourceTree = "<group>"; };
@@ -460,7 +458,6 @@
 				1F1A742D1940169200FFFC47 /* Info.plist */,
 				1FD8CD0C1968AB07008ED995 /* Matchers */,
 				1F1A742E1940169200FFFC47 /* Nimble.h */,
-				37B050B92AFE172B00B26672 /* NimblePrefixHeader.pch */,
 				1FD8CD241968AB07008ED995 /* Utils */,
 			);
 			name = Nimble;
@@ -773,7 +770,6 @@
 			files = (
 				CDFB6A491F7E082500AD8CC7 /* CwlMachBadInstructionHandler.h in Headers */,
 				CDFB6A271F7E07C700AD8CC7 /* CwlCatchException.h in Headers */,
-				37B050BA2AFE172B00B26672 /* NimblePrefixHeader.pch in Headers */,
 				1F1871DF1CA89EF500A34BF2 /* NMBStringify.h in Headers */,
 				1F1871DD1CA89EF500A34BF2 /* DSL.h in Headers */,
 				1F1871DE1CA89EF500A34BF2 /* NMBExceptionCapture.h in Headers */,
@@ -1121,7 +1117,6 @@
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREFIX_HEADER = "$(PROJECT_DIR)/Sources/$(PROJECT_NAME)/NimblePrefixHeader.pch";
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"DEBUG=1",
 					"$(inherited)",
@@ -1194,7 +1189,6 @@
 				ENABLE_TESTING_SEARCH_PATHS = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_PREFIX_HEADER = "$(PROJECT_DIR)/Sources/$(PROJECT_NAME)/NimblePrefixHeader.pch";
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_MISSING_NEWLINE = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;

Sources/Nimble/Nimble.h

@@ -1,4 +1,11 @@
 #import <Foundation/Foundation.h>
+
+// When running below Xcode 15, TARGET_OS_VISION is not defined. Since the project has TREAT_WARNINGS_AS_ERROS enabled
+// we need to workaround this warning.
+#ifndef TARGET_OS_VISION
+    #define TARGET_OS_VISION   0
+#endif /* TARGET_OS_VISION */
+
 #import <Nimble/NMBExceptionCapture.h>
 #import <Nimble/NMBStringify.h>
 #import <Nimble/DSL.h>