Fix iOS build: use CMAKE_BINARY_DIR for git-version.cpp so it stays at the build root

Core/CMakeLists.txt

@@ -691,7 +691,7 @@ add_library(Core STATIC
 	${CMAKE_SOURCE_DIR}/ext/riscv-disas.h
 	${CMAKE_SOURCE_DIR}/ext/loongarch-disasm.cpp
 	${CMAKE_SOURCE_DIR}/ext/loongarch-disasm.h
-	${CMAKE_CURRENT_BINARY_DIR}/git-version.cpp
+	${CMAKE_BINARY_DIR}/git-version.cpp
 )
 
 if((MACOSX OR IOS) AND NOT LIBRETRO)
@@ -793,11 +793,11 @@ endif()
 
 add_custom_command(OUTPUT something_that_never_exists
 	COMMAND ${CMAKE_COMMAND} -DSOURCE_DIR=${CMAKE_SOURCE_DIR}
-		-DOUTPUT_DIR=${CMAKE_CURRENT_BINARY_DIR}
+		-DOUTPUT_DIR=${CMAKE_BINARY_DIR}
 		-P ${CMAKE_SOURCE_DIR}/git-version.cmake
 	${WIN_VERSION_CMD})
 
-set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/git-version.cpp
+set_source_files_properties(${CMAKE_BINARY_DIR}/git-version.cpp
 	PROPERTIES GENERATED TRUE
 	SKIP_AUTOMOC ON)
 add_dependencies(Core GitVersion)

b-ios.sh

@@ -8,7 +8,8 @@ mkdir -p build # For the final IPA & DEB file
 mkdir -p build-ios
 cd build-ios
 rm -rf PPSSPP.app # There seems to be an existing symlink, may be from ccache? We don't want to include old stuff that might be removed to be included in the final IPA file.
-# It seems xcodebuild is looking for "git-version.cpp" file inside "build-ios" directory instead of at repo's root dir.
+# git-version.cpp is listed as a source file at ${CMAKE_BINARY_DIR}/git-version.cpp,
+# so we pre-create it here so Xcode can find it before any script phases run.
 echo "const char *PPSSPP_GIT_VERSION = \"$(git describe --always)\";" > git-version.cpp
 echo "#define PPSSPP_GIT_VERSION_NO_UPDATE 1" >> git-version.cpp
 # Generate exportOptions.plist for xcodebuild
@@ -34,11 +35,6 @@ echo '<?xml version="1.0" encoding="UTF-8"?>
 # There are 2 ways to build PPSSPP for iOS, using make or xcodebuild
 # Generate xcodeproject (only needed when building using xcode, similar to ./b.sh --ios-xcode)
 cmake -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchains/ios.cmake -GXcode ..
-# Xcode's new build system validates that source files exist before running script phases.
-# CMake places git-version.cpp at Core/git-version.cpp (CMAKE_CURRENT_BINARY_DIR for Core/).
-# Copy the pre-created git-version.cpp so Xcode can find it.
-mkdir -p Core
-cp git-version.cpp Core/git-version.cpp
 # Build PPSSPP using xcode
 #xcodebuild clean build -project PPSSPP.xcodeproj CODE_SIGNING_ALLOWED=NO -sdk iphoneos -configuration Release
 xcodebuild -project PPSSPP.xcodeproj -scheme PPSSPP -sdk iphoneos -configuration Release -quiet clean build archive -archivePath ./build/PPSSPP.xcarchive CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED=NO #CODE_SIGN_IDENTITY="iPhone Distribution: Your NAME / Company (TeamID)" #PROVISIONING_PROFILE="xxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"