CMakeLists.txt

   1 cmake_minimum_required(VERSION 2.6)
   2 project(libam7xxx C)
   3
   4 set(PROJECT_DESCRIPTION
   5   "Communication library for Actions Micro AM7XXX based USB projectors and DPFs")
   6
   7 set(PROJECT_VER_MAJOR 0)
   8 set(PROJECT_VER_MINOR 1)
   9 set(PROJECT_VER_PATCH 4)
  10 set(PROJECT_VER_EXTRA "")
  11 set(PROJECT_VER
  12   "${PROJECT_VER_MAJOR}.${PROJECT_VER_MINOR}.${PROJECT_VER_PATCH}${PROJECT_VER_EXTRA}")
  13 set(PROJECT_APIVER
  14   "${PROJECT_VER_MAJOR}.${PROJECT_VER_MINOR}")
  15
  16 set(CMAKE_MODULE_PATH
  17   ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules/")
  18
  19 OPTION(STRICT_COMPILATION_CHECKS "Enable stricter compilation checks" OFF)
  20
  21 include (MaintenanceTools)
  22
  23 set(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR}/bin)
  24 set(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR}/lib)
  25 set(DOC_OUTPUT_PATH ${CMAKE_BINARY_DIR}/doc)
  26
  27 # Because cmake cannot deal sanely with multiline strings. SRSLY?
  28 # See http://www.vtkedge.org/Bug/view.php?id=8362&nbn=8
  29 macro(add_flags var)
  30   string(REPLACE ";" " " _flags "${ARGN}")
  31   set(${var} "${${var}} ${_flags}")
  32 endmacro(add_flags)
  33
  34 string(REGEX MATCH "clang" CMAKE_COMPILER_IS_CLANG "${CMAKE_C_COMPILER}")
  35
  36 if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_CLANG)
  37   add_definitions(-Wall)
  38
  39   # let CFLAGS env override this
  40   if(CMAKE_C_FLAGS STREQUAL "")
  41     set(CMAKE_C_FLAGS "-std=c99 -pedantic -Wall -Wextra")
  42   endif()
  43
  44   add_flags(CMAKE_C_FLAGS
  45     -fvisibility=hidden
  46     -fno-common
  47     -Wall
  48     -Wextra
  49     -Wformat=2
  50     -Winit-self
  51     -Winline
  52     -Wpacked
  53     -Wpointer-arith
  54     -Wlarger-than-65500
  55     -Wmissing-declarations
  56     -Wmissing-format-attribute
  57     -Wmissing-noreturn
  58     -Wmissing-prototypes
  59     -Wnested-externs
  60     -Wold-style-definition
  61     -Wredundant-decls
  62     -Wsign-compare
  63     -Wstrict-aliasing=2
  64     -Wstrict-prototypes
  65     -Wswitch-enum
  66     -Wundef
  67     -Wunreachable-code
  68     -Wwrite-strings
  69     -fstack-protector)
  70
  71   add_flags(DEBUG_FLAGS
  72     -ggdb
  73     -DDEBUG=1)
  74
  75   add_flags(RELEASE_FLAGS
  76     -Wp,-D_FORTIFY_SOURCE=2)
  77
  78   if (STRICT_COMPILATION_CHECKS)
  79     add_flags(STRICT_FLAGS
  80       -Werror
  81       # sign conversion warnings can be very noisy for a very little gain
  82       #-Wsign-conversion
  83       # NOTE: Vanilla libusb-1.0.8 can't live with -pedantic-errors
  84       -pedantic-errors)
  85
  86   endif()
  87 endif()
  88
  89 if (CMAKE_COMPILER_IS_GNUCC)
  90   add_flags(CMAKE_C_FLAGS
  91     -Wunsafe-loop-optimizations
  92     --param=ssp-buffer-size=4)
  93
  94   if (STRICT_COMPILATION_CHECKS)
  95     add_flags(STRICT_FLAGS
  96       # NOTE: GCC >= 4.6 is needed for -Wunused-but-set-variable
  97       -Wunused-but-set-variable)
  98   endif()
  99 endif()
 100
 101 if (CMAKE_COMPILER_IS_CLANG)
 102   if (STRICT_COMPILATION_CHECKS)
 103     add_flags(STRICT_FLAGS
 104       -Wshorten-64-to-32)
 105   endif()
 106 endif()
 107
 108 set(CMAKE_C_FLAGS_DEBUG "-O0 ${DEBUG_FLAGS} ${STRICT_FLAGS}")
 109 set(CMAKE_C_FLAGS_RELEASE "-O2 ${RELEASE_FLAGS} ${STRICT_FLAGS}")
 110 set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 ${RELEASE_FLAGS} ${DEBUG_FLAGS} ${STRICT_FLAGS}")
 111
 112 # Add library project
 113 add_subdirectory(src)
 114 add_subdirectory(examples)
 115 add_subdirectory(doc)