1 files changed, 60 insertions, 0 deletions
diff --git a/cmake/Modules/FindICONV.cmake b/cmake/Modules/FindICONV.cmake
new file mode 100644
index 0000000..fb78ac7
--- /dev/null
+++ b/cmake/Modules/FindICONV.cmake
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+# - Find iconv
+# Find the iconv (character set conversion) library
+#
+# This module defines the following variables:
+#   ICONV_FOUND  -  True if library and include directory are found
+# If set to TRUE, the following are also defined:
+#   ICONV_INCLUDE_DIRS  -  The directory where to find the header file
+#   ICONV_LIBRARIES  -  Where to find the library file
+#   ICONV_SECOND_ARGUMENT_IS_CONST  -  The second argument for iconv() is const
+#
+# For conveniance, these variables are also set. They have the same values
+# than the variables above.  The user can thus choose his/her prefered way
+# to write them.
+#   ICONV_LIBRARY
+#   ICONV_INCLUDE_DIR
+#
+# This file is in the public domain
+
+find_path(ICONV_INCLUDE_DIRS NAMES iconv.h
+  DOC "The iconv include directory")
+
+find_library(ICONV_LIBRARIES NAMES iconv libiconv libiconv-2 c
+  DOC "The iconv library")
+
+# Use some standard module to handle the QUIETLY and REQUIRED arguments, and
+# set ICONV_FOUND to TRUE if these two variables are set.
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Iconv REQUIRED_VARS ICONV_LIBRARIES ICONV_INCLUDE_DIRS)
+
+# Check if the prototype is
+# size_t iconv(iconv_t cd, char** inbuf, size_t* inbytesleft,
+#              char** outbuf, size_t* outbytesleft);
+# or
+# size_t iconv (iconv_t cd, const char** inbuf, size_t* inbytesleft,
+#              char** outbuf, size_t* outbytesleft);
+if(ICONV_FOUND)
+  include(CheckCXXSourceCompiles)
+
+  # Set the parameters needed to compile the following code.
+  set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIRS})
+  set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARIES})
+
+ check_cxx_source_compiles("
+   #include <iconv.h>
+   int main(){
+   iconv_t conv = 0;
+   const char* in = 0;
+   size_t ilen = 0;
+   char* out = 0;
+   size_t olen = 0;
+   iconv(conv, &in, &ilen, &out, &olen);
+   return 0;}"
+   ICONV_SECOND_ARGUMENT_IS_CONST)
+
+  # Compatibility for all the ways of writing these variables
+  set(ICONV_LIBRARY ${ICONV_LIBRARIES})
+  set(ICONV_INCLUDE_DIR ${ICONV_INCLUDE_DIRS})
+endif()
+
+mark_as_advanced(ICONV_INCLUDE_DIRS ICONV_LIBRARIES ICONV_SECOND_ARGUMENT_IS_CONST)