From 01d207a5076b6fc37a064645b13f2c6550f58b94 Mon Sep 17 00:00:00 2001
From: Julian Andres Klode <jak@debian.org>
Date: Fri, 26 Aug 2016 17:55:28 +0200
Subject: [PATCH] CMake: Add missing iconv dependency

FreeBSD has two iconv systems: It ships an iconv.h itself,
and symbols for that in the libc. But there's also the port
of GNU libiconv, which unfortunately for us, Doxygen depends
on.

This changes things to prefer a separate libiconv library
over the system one; that is, the port on FreeBSD.

Gbp-Dch: ignore
---
 CMake/FindIconv.cmake  | 20 ++++++++++++++++++++
 CMakeLists.txt         |  1 +
 apt-pkg/CMakeLists.txt |  9 +++++++--
 3 files changed, 28 insertions(+), 2 deletions(-)
 create mode 100644 CMake/FindIconv.cmake

diff --git a/CMake/FindIconv.cmake b/CMake/FindIconv.cmake
new file mode 100644
index 000000000..67046d95d
--- /dev/null
+++ b/CMake/FindIconv.cmake
@@ -0,0 +1,20 @@
+find_path(ICONV_INCLUDE_DIR NAMES iconv.h)
+
+find_library(ICONV_LIBRARY NAMES iconv)
+if (ICONV_LIBRARY)
+    set(ICONV_SYMBOL_FOUND "${ICONV_LIBRARY}")
+else()
+    check_function_exists(iconv_open ICONV_SYMBOL_FOUND)
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Iconv DEFAULT_MESSAGE ICONV_INCLUDE_DIR ICONV_SYMBOL_FOUND)
+
+if(ICONV_LIBRARY)
+    set(ICONV_LIBRARIES "${ICONV_LIBRARY}")
+else()
+    set(ICONV_LIBRARIES)
+endif()
+set(ICONV_INCLUDE_DIRS "${ICONV_INCLUDE_DIR}")
+
+mark_as_advanced(ICONV_LIBRARY ICONV_INCLUDE_DIR)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 24c58a0f8..35c75b18a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,6 +29,7 @@ include(GNUInstallDirs)
 include(TestBigEndian)
 find_package(Threads)
 find_package(LFS REQUIRED)
+find_package(Iconv REQUIRED)
 
 if(USE_NLS)
   find_package(Intl REQUIRED)
diff --git a/apt-pkg/CMakeLists.txt b/apt-pkg/CMakeLists.txt
index 3f85bc143..34930c8e9 100644
--- a/apt-pkg/CMakeLists.txt
+++ b/apt-pkg/CMakeLists.txt
@@ -28,14 +28,19 @@ target_include_directories(apt-pkg
                            PRIVATE ${ZLIB_INCLUDE_DIRS}
                                    ${BZIP2_INCLUDE_DIR}
                                    ${LZMA_INCLUDE_DIRS}
-                                   ${LZ4_INCLUDE_DIRS})
+                                   ${LZ4_INCLUDE_DIRS}
+                                   ${ICONV_DIRECTORIES}
+)
+
 target_link_libraries(apt-pkg
                       PRIVATE -lutil ${CMAKE_DL_LIBS} ${RESOLV_LIBRARIES}
                              ${CMAKE_THREAD_LIBS_INIT}
                              ${ZLIB_LIBRARIES}
                              ${BZIP2_LIBRARIES}
                              ${LZMA_LIBRARIES}
-                             ${LZ4_LIBRARIES})
+                             ${LZ4_LIBRARIES}
+                             ${ICONV_LIBRARIES}
+)
 set_target_properties(apt-pkg PROPERTIES VERSION ${MAJOR}.${MINOR})
 set_target_properties(apt-pkg PROPERTIES SOVERSION ${MAJOR})
 add_version_script(apt-pkg)
-- 
2.45.2