fix freebsd build

Author: michael-yuji

Package.swift

@@ -28,7 +28,11 @@ let terminfoLibraries: [LinkerSetting] = {
     if !useTerminfo {
         return []
     }
+#if os(FreeBSD)
+    return [.linkedLibrary("ncurses")]
+#else
     return [.linkedLibrary("ncurses", .when(platforms: [.linux, .macOS]))]
+#endif
 }()
 
 let package = Package(
@@ -339,4 +343,19 @@ if let target = package.targets.first(where: { $0.name == "llbuildCore"}) {
         .unsafeFlags(["-L/usr/local/lib"])
     ]
 }
+#elseif os(FreeBSD)
+if let target = package.targets.first(where: { $0.name == "llvmSupport" }) {
+    target.linkerSettings = ["execinfo", "m", "pthread", "ncurses"].map { .linkedLibrary($0) }
+}
+package.targets.filter({ $0.name == "llbuildCore" || $0.name == "llbuildCoreTests" }).forEach {
+    $0.cSettings = [.unsafeFlags(["-I/usr/local/include"])]
+    $0.linkerSettings = [
+        .linkedLibrary("sqlite3"),
+        .unsafeFlags(["-L/usr/local/lib"])
+    ]
+
+}
+package.targets.filter({ $0.name == "llbuild" || $0.name == "swift-build-tool" }).forEach {
+    $0.linkerSettings = [.linkedLibrary("dl"), .linkedLibrary("pthread")]
+}
 #endif

lib/llvm/Support/CMakeLists.txt

@@ -64,6 +64,6 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
     execinfo)
 endif()
 
-if(${CMAKE_SYSTEM_NAME} MATCHES "Android|Darwin|Linux")
+if(${CMAKE_SYSTEM_NAME} MATCHES "Android|Darwin|Linux|FreeBSD")
   target_link_libraries(llvmSupport PRIVATE curses)
 endif()

utils/adjust-times/adjust-times.cpp

@@ -16,7 +16,7 @@
   #define UTIME_NOW ((1l << 30) - 1l)
   #define UTIME_OMIT ((1l << 30) - 2l)
 #else
-#if defined(__OpenBSD__)
+#if defined(__OpenBSD__) || defined(__FreeBSD__)
   #include <sys/types.h>
   #include <utime.h>
 #endif