Improve dependencies checks in the build process

- Rename all Find*.cmake files to uppercase, to make things more consistent,
  and fix some issues with them (notably the REQUIRED flag)

- Rename SYSTEMDDAEMON to SYSTEMD and only use the libsystemd instead of
  libsystemd-daemon because it's deprecated for a long time now

- Provide a WITH_* and WITHOUT_* switch for all optional dependencies

- Document things in the INSTALL file

1 files changed, 0 insertions, 60 deletions

diff --git a/cmake/Modules/FindIconv.cmake b/cmake/Modules/FindIconv.cmake
deleted file mode 100644
index 7ca173f..0000000
--- a/cmake/Modules/FindIconv.cmake
+++ /dev/null
@@ -1,60 +0,0 @@
-# - 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)
\ No newline at end of file