# CMakePrintHelpers

Convenience functions for printing properties and variables, useful e.g. for debugging.

## Commands

cmake_print_properties

      cmake_print_properties(<TARGETS       [<target1> ...] |
                              SOURCES       [<source1> ...] |
                              DIRECTORIES   [<dir1> ...]    |
                              TESTS         [<test1> ...]   |
                              CACHE_ENTRIES [<entry1> ...]  >
                             PROPERTIES [<prop1> ...])

  This function prints the values of the properties of the given targets, source files, directories, tests or cache entries. Exactly one of the scope keywords must be used. The scope keyword and its arguments must come before the `PROPERTIES` keyword in the arguments list.

cmake_print_variables

      cmake_print_variables([var1 [var2 ... [varN]]])

  This function prints the name of each variable followed by its value.

## Examples

Printing the `LOCATION` and `INTERFACE_INCLUDE_DIRECTORIES` properties for both targets `foo` and `bar`:

    include(CMakePrintHelpers)

    cmake_print_properties(
      TARGETS foo bar
      PROPERTIES LOCATION INTERFACE_INCLUDE_DIRECTORIES
    )

Gives:

    --
     Properties for TARGET foo:
       foo.LOCATION = "/usr/lib/libfoo.so"
       foo.INTERFACE_INCLUDE_DIRECTORIES = "/usr/include;/usr/include/foo"
     Properties for TARGET bar:
       bar.LOCATION = "/usr/lib/libbar.so"
       bar.INTERFACE_INCLUDE_DIRECTORIES = "/usr/include;/usr/include/bar"

Printing given variables:

    include(CMakePrintHelpers)

    cmake_print_variables(CMAKE_C_COMPILER CMAKE_MAJOR_VERSION NOT_EXISTS)

Gives:

    -- CMAKE_C_COMPILER="/usr/bin/cc" ; CMAKE_MAJOR_VERSION="3" ; NOT_EXISTS=""