Diff of /cmake/modules/FindICONV.cmake [000000] .. [1c3b2d]  Maximize  Restore

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+++ b/cmake/modules/FindICONV.cmake
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+# vim:ts=4:sw=4:expandtab:autoindent:
+#
+# The MIT License
+#
+# Copyright (c) 2008, 2009 Flusspferd contributors (see "CONTRIBUTORS" or
+#                                      http://flusspferd.org/contributors.txt)
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+
+Include(CheckFunctionExists)
+include(CheckCXXSourceCompiles)
+
+if(ICONV_INCLUDE_DIR)
+  set(ICONV_FIND_QUIETLY TRUE)
+endif()
+
+find_path(ICONV_INCLUDE_DIR iconv.h)
+
+if(NOT ICONV_INCLUDE_DIR STREQUAL "ICONV_INCLUDE_DIR-NOTFOUND")
+    set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
+    check_function_exists(iconv_open ICONV_IN_GLIBC)
+endif()
+
+if(NOT ICONV_IN_GLIBC)
+    find_library(ICONV_LIBRARY NAMES iconv)
+    set(ICONV_TEST ${ICONV_LIBRARY})
+else()
+    set(ICONV_TEST "In glibc")
+endif()
+
+set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
+set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARY})
+check_cxx_source_compiles(
+    "#include <iconv.h>
+     int main() {
+        iconv(iconv_t(-1), 0, 0, 0, 0);
+     }"
+    ICONV_COMPILES)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(ICONV DEFAULT_MSG ICONV_TEST ICONV_INCLUDE_DIR ICONV_COMPILES)
+
+if(ICONV_FOUND)
+  set(ICONV_LIBRARIES ${ICONV_LIBRARY})
+else(ICONV_FOUND)
+  set(ICONV_LIBRARIES)
+endif(ICONV_FOUND)
+
+if(ICONV_FOUND)  
+    set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
+    set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARIES})
+
+    if (NOT DEFINED ICONV_ACCEPTS_NONCONST_INPUT)
+        # Display a useful message first time we come through here
+        message(STATUS "One (and only one) of the ICONV_ACCEPTS_... tests must pass")
+    endif()
+    check_cxx_source_compiles(
+        "#include <iconv.h>
+         int main() {
+            char *p = 0;
+            iconv(iconv_t(-1), &p, 0, 0, 0);
+         }"
+        ICONV_ACCEPTS_NONCONST_INPUT)
+
+    check_cxx_source_compiles(
+        "#include <iconv.h>
+         int main() {
+            char const *p = 0;
+            iconv(iconv_t(-1), &p, 0, 0, 0);
+         }"
+        ICONV_ACCEPTS_CONST_INPUT)
+
+    if (ICONV_LIBRARY)
+        list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARY})
+        list(REMOVE_DUPLICATES CMAKE_REQUIRED_LIBRARIES)
+    endif()
+endif()
+
+if(NOT ICONV_ACCEPTS_CONST_INPUT AND NOT ICONV_ACCEPTS_NONCONST_INPUT)
+  MESSAGE(FATAL_ERROR "Unebale to determine iconv() signature")
+elseif(ICONV_ACCEPTS_CONST_INPUT AND ICONV_ACCEPTS_NONCONST_INPUT)
+  MESSAGE(FATAL_ERROR "Unebale to determine iconv() signature - both test cases passed!")
+endif()
+
+mark_as_advanced(ICONV_LIBRARY ICONV_INCLUDE_DIR)

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