From 8a9962aba8274ebf211ffa872ed840a2afd1740e Mon Sep 17 00:00:00 2001
From: Tobias Hunger <tobias.hunger@qt.io>
Date: Tue, 2 Apr 2019 11:36:39 +0200
Subject: CMake: Add FindCups.cmake from upstream cmake

This FindCups defines a target, which the FindCups.cmake in the currently
required CMake version does not:-/

Change-Id: I76c5bb72ece80415db1971e4f2079682126fde36
Todo: Remove again once we depend on CMake 3.15.
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
---
 cmake/FindCups.cmake | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 cmake/FindCups.cmake

(limited to 'cmake')

diff --git a/cmake/FindCups.cmake b/cmake/FindCups.cmake
new file mode 100644
index 0000000000..7a78100aae
--- /dev/null
+++ b/cmake/FindCups.cmake
@@ -0,0 +1,98 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+FindCups
+--------
+
+Find the CUPS printing system.
+
+Set CUPS_REQUIRE_IPP_DELETE_ATTRIBUTE to TRUE if you need a version which
+features this function (i.e. at least 1.1.19)
+
+Imported targets
+^^^^^^^^^^^^^^^^
+
+This module defines :prop_tgt:`IMPORTED` target ``Cups::Cups``, if Cups has
+been found.
+
+Result variables
+^^^^^^^^^^^^^^^^
+
+This module will set the following variables in your project:
+
+``CUPS_FOUND``
+  true if CUPS headers and libraries were found
+``CUPS_INCLUDE_DIRS``
+  the directory containing the Cups headers
+``CUPS_LIBRARIES``
+  the libraries to link against to use CUPS.
+``CUPS_VERSION_STRING``
+  the version of CUPS found (since CMake 2.8.8)
+
+Cache variables
+^^^^^^^^^^^^^^^
+
+The following cache variables may also be set:
+
+``CUPS_INCLUDE_DIR``
+  the directory containing the Cups headers
+#]=======================================================================]
+
+find_path(CUPS_INCLUDE_DIR cups/cups.h )
+
+find_library(CUPS_LIBRARIES NAMES cups )
+
+if (CUPS_INCLUDE_DIR AND CUPS_LIBRARIES AND CUPS_REQUIRE_IPP_DELETE_ATTRIBUTE)
+    include(${CMAKE_CURRENT_LIST_DIR}/CheckLibraryExists.cmake)
+    include(${CMAKE_CURRENT_LIST_DIR}/CMakePushCheckState.cmake)
+    cmake_push_check_state()
+    set(CMAKE_REQUIRED_QUIET ${Cups_FIND_QUIETLY})
+
+    # ippDeleteAttribute is new in cups-1.1.19 (and used by kdeprint)
+    CHECK_LIBRARY_EXISTS(cups ippDeleteAttribute "" CUPS_HAS_IPP_DELETE_ATTRIBUTE)
+    cmake_pop_check_state()
+endif ()
+
+if (CUPS_INCLUDE_DIR AND EXISTS "${CUPS_INCLUDE_DIR}/cups/cups.h")
+    file(STRINGS "${CUPS_INCLUDE_DIR}/cups/cups.h" cups_version_str
+         REGEX "^#[\t ]*define[\t ]+CUPS_VERSION_(MAJOR|MINOR|PATCH)[\t ]+[0-9]+$")
+
+    unset(CUPS_VERSION_STRING)
+    foreach(VPART MAJOR MINOR PATCH)
+        foreach(VLINE ${cups_version_str})
+            if(VLINE MATCHES "^#[\t ]*define[\t ]+CUPS_VERSION_${VPART}[\t ]+([0-9]+)$")
+                set(CUPS_VERSION_PART "${CMAKE_MATCH_1}")
+                if(CUPS_VERSION_STRING)
+                    string(APPEND CUPS_VERSION_STRING ".${CUPS_VERSION_PART}")
+                else()
+                    set(CUPS_VERSION_STRING "${CUPS_VERSION_PART}")
+                endif()
+            endif()
+        endforeach()
+    endforeach()
+endif ()
+
+include(FindPackageHandleStandardArgs)
+
+if (CUPS_REQUIRE_IPP_DELETE_ATTRIBUTE)
+    FIND_PACKAGE_HANDLE_STANDARD_ARGS(Cups
+                                      REQUIRED_VARS CUPS_LIBRARIES CUPS_INCLUDE_DIR CUPS_HAS_IPP_DELETE_ATTRIBUTE
+                                      VERSION_VAR CUPS_VERSION_STRING)
+else ()
+    FIND_PACKAGE_HANDLE_STANDARD_ARGS(Cups
+                                      REQUIRED_VARS CUPS_LIBRARIES CUPS_INCLUDE_DIR
+                                      VERSION_VAR CUPS_VERSION_STRING)
+endif ()
+
+mark_as_advanced(CUPS_INCLUDE_DIR CUPS_LIBRARIES)
+
+if (CUPS_FOUND)
+    set(CUPS_INCLUDE_DIRS "${CUPS_INCLUDE_DIR}")
+    if (NOT TARGET Cups::Cups)
+        add_library(Cups::Cups INTERFACE IMPORTED)
+        set_target_properties(Cups::Cups PROPERTIES
+            INTERFACE_LINK_LIBRARIES      "${CUPS_LIBRARIES}"
+            INTERFACE_INCLUDE_DIRECTORIES "${CUPS_INCLUDE_DIR}")
+    endif ()
+endif ()
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