我正在使用Swift Package Manager为现有C库创建Swift包装器。我认为我已经正确构造了所有内容，但是在创建和构建Xcode项目时遇到错误。我已经尝试了所有可能找到的东西，但是没有运气。正式让我难过。
以下是当前状态的项目链接：https://github.com/JKcompute/Camiitool/tree/stackpost
这是我的Package.swift
// swift-tools-version:5.3
import PackageDescription
let package = Package(
name: "CamiitoolPackage",
products: [
.library(name: "Camiitool", targets: ["Camiitool"]),
.library(name: "amiitoolSwift", targets: ["amiitoolSwift"]),
],
dependencies: [
],
targets: [
.target(
name: "amiitoolSwift",
dependencies: [
"Camiitool"
],
path: "./Sources/amiitoolSwift"
),
.target(
name: "Camiitool",
dependencies: [
"mbedtls"
],
path: "./Sources/Camiitool",
exclude: [
"mbedtls",
"LICENSE"
],
resources: [
.copy("."),
]
),
.target(
name: "mbedtls",
dependencies: [],
path: "./Sources/Camiitool/mbedtls",
exclude: [
"./mbedtls/yotta",
"./mbedtls/visualc",
"LICENSE"
],
resources: [
.copy("."),
]
),
.testTarget(
name: "amiitoolSwiftTests",
dependencies: ["amiitoolSwift"]
)
]
)
所以我在这里有Camiitool是C库Amiitool。 Amiitool取决于mbedtls。所以我有一个针对mbedtls，Camiitool的目标，然后我也有一个针对amiitoolSwift的目标，我计划使用我的swift API。
这是我来自amiitoolSwift目标的swift文件。注意：它现在非常基本，仅用于测试。
import Foundation
import Camiitool
public class Amii {
var someString = "test"
public init() {
someString = "initialized"
}
public func printTest() {
print(someString)
}
public func methodJustForTesting() {
print(someString)
let cString: UnsafePointer<CChar> = Camiitool.nfc3d_version_fork()
print(String(cString: cString))
}
}
问题在于，当我构建时，我遇到了Camiitool的Framework Not Found错误。
> Ld /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Products/Debug/amiitoolSwift.framework/Versions/A/amiitoolSwift normal (in target 'amiitoolSwift' from project 'CamiitoolPackage')
cd /Users/ME/GIT/PERSONAL/Amiibo/backup-wip/Camiitool
/Applications/Xcode_12.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -target x86_64-apple-macos10.10 -dynamiclib -isysroot /Applications/Xcode_12.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -L/Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Products/Debug -F/Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Products/Debug -F/Applications/Xcode_12.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks -filelist /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Intermediates.noindex/CamiitoolPackage.build/Debug/amiitoolSwift.build/Objects-normal/x86_64/amiitoolSwift.LinkFileList -install_name @rpath/amiitoolSwift.framework/Versions/A/amiitoolSwift -Xlinker -rpath -Xlinker /usr/lib/swift -Xlinker -rpath -Xlinker /Applications/Xcode_12.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/macosx -Xlinker -object_path_lto -Xlinker /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Intermediates.noindex/CamiitoolPackage.build/Debug/amiitoolSwift.build/Objects-normal/x86_64/amiitoolSwift_lto.o -Xlinker -export_dynamic -Xlinker -no_deduplicate -fobjc-link-runtime -L/Applications/Xcode_12.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/macosx -L/usr/lib/swift -Xlinker -add_ast_path -Xlinker /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Intermediates.noindex/CamiitoolPackage.build/Debug/amiitoolSwift.build/Objects-normal/x86_64/amiitoolSwift.swiftmodule -framework Camiitool -framework mbedtls -Xlinker -dependency_info -Xlinker /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Intermediates.noindex/CamiitoolPackage.build/Debug/amiitoolSwift.build/Objects-normal/x86_64/amiitoolSwift_dependency_info.dat -o /Users/ME/Library/Developer/Xcode/DerivedData/CamiitoolPackage-fjhqfruljmetilfuiykpzwhzobkc/Build/Products/Debug/amiitoolSwift.framework/Versions/A/amiitoolSwift
ld：找不到框架Camiitool 铛：错误：链接器命令失败，退出代码为1（使用-v查看调用）
我尝试解决的所有问题似乎都在创建同一错误的某些不同版本。例如“未找到Camiitool模块”，或者我找到了Camiitool，但是随后在方法调用（nfc3d_version_fork）上出现错误，该方法不存在。
最后一点说明：我的项目的当前状态基于以下示例：https://github.com/RoaringBitmap/SwiftRoaring 除了没有子模块外，这与我所做的基本上相同。我已经完成了这个项目，并且能够很好地构建和运行它。我已经比较了项目之间的所有设置，我看不到任何差异。最终导致我在这里发布。
运行MacOS 10.15.7，Xcode 12.0
答案 0 :(得分：0)
所以我想出了这个。
首先，我注意到即使生成了.framework文件，它也大部分为空。显然这似乎不对，所以我开始进行一个单独的项目，以确保我没有错过任何步骤。我能够使另一个项目工作，所以我回到了这个项目并进行了一些更改。
我的5.3版本设置似乎有问题。我回到5.1，并得到重复符号错误。一旦我通过排除不需要的c文件清除了这些文件。我能够在5.1上运行它
为了回到5.1，我需要删除原始清单中的resources.copy参数。因此，当我回到5.3时，我收到一堆关于未处理资源的警告：
warning: found 424 file(s) which are unhandled; explicitly declare them as resources or exclude from the target
我之前收到此警告，这就是我首先添加resource.copy（“。”）的原因。这次我决定采用另一种方法，排除不需要的所有内容，然后查看完成后是否需要具体包括任何内容。原来，我不需要包含任何资源，也不需要排除所有我的错误和警告。
这是我的清单更新了。
// swift-tools-version:5.3
// The swift-tools-version declares the minimum version of Swift required to build this package.
import PackageDescription
let package = Package(
name: "CamiitoolPackage",
products: [
// Products define the executables and libraries a package produces, and make them visible to other packages.
.library(name: "Camiitool", targets: ["Camiitool"]),
.library(name: "amiitoolSwift", targets: ["amiitoolSwift"]),
.library(name: "amiitoolSwiftDynamic", type: .dynamic, targets: ["amiitoolSwift"]),
],
dependencies: [
],
targets: [
.target(
name: "amiitoolSwift",
dependencies: [
"Camiitool"
],
path: "./Sources/amiitoolSwift"
),
.target(
name: "Camiitool",
dependencies: [
"mbedtls"
],
path: "./Sources/Camiitool",
exclude: [
"./mbedtls",
"./mbedtls/yotta",
"./mbedtls/visualc",
"./LICENSE",
"./amiitool.c",
"./README.md",
"./Makefile"
]
),
.target(
name: "mbedtls",
dependencies: [],
path: "./Sources/Camiitool/mbedtls",
exclude: [
"./yotta",
"./visualc",
"./LICENSE",
"./programs",
"./tests",
"./scripts",
"./include/CMakeLists.txt",
"./DartConfiguration.tcl",
"./doxygen",
"./library/Makefile",
"./apache-2.0.txt",
"./Makefile",
"./README.md",
"./ChangeLog",
"./CMakeLists.txt",
"./circle.yml",
"./configs/README.txt",
"./library/CMakeLists.txt"
]
),
.testTarget(
name: "amiitoolSwiftTests",
dependencies: ["amiitoolSwift"]
)
]
)
现在，它可以生成，不生成警告或错误，并且我的.framework文件已按预期完成。我认为这里可能存在一个错误，我没有得到更好的错误，因为xcode将显示我的Camiitool.framework构建成功。即使显然不是。
然后我可以使用以下可执行程序包安装程序来测试我的程序包，而且效果也很好。
// swift-tools-version:5.3
// The swift-tools-version declares the minimum version of Swift required to build this package.
import PackageDescription
let package = Package(
name: "packageTester",
dependencies: [
// Dependencies declare other packages that this package depends on.
.package(name: "CamiitoolPackage", path: "../Camiitool"),
],
targets: [
.target(
name: "packageTester",
dependencies: [
.product(name: "amiitoolSwift", package: "CamiitoolPackage")
]
),
.testTarget(
name: "packageTesterTests",
dependencies: ["packageTester"]),
]
)