Added findzip

cmake/modules/Findlibzip.cmake

@@ -0,0 +1,86 @@
+# Copyright (c) 2025 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+set(LIBZIP_ALLOW_FETCH ON CACHE BOOL "Allow fetching libzip if not found")
+set(LIBZIP_FETCH_GIT_REPO "https://github.com/nih-at/libzip.git" CACHE STRING "libzip Git repository")
+set(LIBZIP_FETCH_GIT_TAG  "v1.11.1" CACHE STRING "libzip Git tag to fetch")
+set(LIBZIP_MIN_VERSION "" CACHE STRING "Required minimum libzip version (optional)")
+
+unset(LIBZIP_FOUND CACHE)
+unset(LIBZIP_TARGET CACHE)
+unset(LIBZIP_INCLUDE_DIRS CACHE)
+unset(LIBZIP_LIBRARIES CACHE)
+
+set(_find_args CONFIG QUIET)
+if(LIBZIP_MIN_VERSION)
+  list(PREPEND _find_args ${LIBZIP_MIN_VERSION})
+endif()
+
+find_package(libzip ${_find_args})
+
+if(TARGET libzip::zip)
+  set(LIBZIP_FOUND ON)
+  set(LIBZIP_TARGET libzip::zip)
+elseif(TARGET zip) # some builds expose an un-namespaced "zip"
+  add_library(libzip::zip ALIAS zip)
+  set(LIBZIP_FOUND ON)
+  set(LIBZIP_TARGET libzip::zip)
+endif()
+
+if(NOT LIBZIP_FOUND)
+  find_package(PkgConfig QUIET)
+  if(PkgConfig_FOUND)
+    pkg_check_modules(LIBZIP_PC QUIET libzip)
+    if(LIBZIP_PC_FOUND)
+      # Create a consistent imported target matching libzip::zip
+      add_library(libzip::zip INTERFACE IMPORTED)
+      set_target_properties(libzip::zip PROPERTIES
+        INTERFACE_INCLUDE_DIRECTORIES "${LIBZIP_PC_INCLUDE_DIRS}"
+        INTERFACE_LINK_LIBRARIES      "${LIBZIP_PC_LINK_LIBRARIES}"
+      )
+      set(LIBZIP_FOUND ON)
+      set(LIBZIP_TARGET libzip::zip)
+      set(LIBZIP_INCLUDE_DIRS "${LIBZIP_PC_INCLUDE_DIRS}")
+      set(LIBZIP_LIBRARIES "${LIBZIP_PC_LINK_LIBRARIES}")
+    endif()
+  endif()
+endif()
+
+# ---- 3) FetchContent as a last resort ---------------------------------------
+if(NOT LIBZIP_FOUND AND LIBZIP_ALLOW_FETCH)
+  include(FetchContent)
+
+  set(BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)
+  set(LIBZIP_DO_INSTALL OFF CACHE BOOL "" FORCE)
+  set(ENABLE_BZIP2 OFF CACHE BOOL "" FORCE)
+  set(ENABLE_LZMA OFF CACHE BOOL "" FORCE)
+  set(ENABLE_ZSTD OFF CACHE BOOL "" FORCE)
+
+  FetchContent_Declare(
+    libzip_fetch
+    GIT_REPOSITORY "${LIBZIP_FETCH_GIT_REPO}"
+    GIT_TAG        "${LIBZIP_FETCH_GIT_TAG}"
+  )
+  FetchContent_MakeAvailable(libzip_fetch)
+
+  if(NOT TARGET libzip::zip)
+    if(TARGET zip)
+      add_library(libzip::zip ALIAS zip)
+    endif()
+  endif()
+
+  if(TARGET libzip::zip)
+    set(LIBZIP_FOUND ON)
+    set(LIBZIP_TARGET libzip::zip)
+  else()
+    message(FATAL_ERROR "libzip fetch succeeded but target 'libzip::zip' (or 'zip') was not created.")
+  endif()
+endif()
+
+# Final guard
+if(NOT LIBZIP_FOUND)
+  message(FATAL_ERROR "libzip not found and fetching is disabled or failed. "
+                      "Set LIBZIP_ALLOW_FETCH=ON or install libzip development files.")
+endif()

src/CMakeLists.txt

@@ -4,6 +4,7 @@
 # https://opensource.org/licenses/MIT
 
 find_package(cglm REQUIRED)
+find_package(libzip REQUIRED)
 
 # Libs
 target_link_libraries(${DUSK_TARGET_NAME}