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 5)
  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
  74   add_flags(RELEASE_FLAGS
  75     -Wp,-D_FORTIFY_SOURCE=2)
  76
  77   if (STRICT_COMPILATION_CHECKS)
  78     add_flags(STRICT_FLAGS
  79       -Werror
  80       # sign conversion warnings can be very noisy for a very little gain
  81       #-Wsign-conversion
  82       # NOTE: Vanilla libusb-1.0.8 can't live with -pedantic-errors
  83       -pedantic-errors)
  84
  85   endif()
  86 endif()
  87
  88 if (CMAKE_COMPILER_IS_GNUCC)
  89   add_flags(CMAKE_C_FLAGS
  90     -Wunsafe-loop-optimizations
  91     --param=ssp-buffer-size=4)
  92
  93   if (STRICT_COMPILATION_CHECKS)
  94     add_flags(STRICT_FLAGS
  95       # NOTE: GCC >= 4.6 is needed for -Wunused-but-set-variable
  96       -Wunused-but-set-variable)
  97   endif()
  98 endif()
  99
 100 if (CMAKE_COMPILER_IS_CLANG)
 101   if (STRICT_COMPILATION_CHECKS)
 102     add_flags(STRICT_FLAGS
 103       -Wshorten-64-to-32)
 104   endif()
 105 endif()
 106
 107 set(CMAKE_C_FLAGS_DEBUG "-O0 -DDEBUG=1 ${DEBUG_FLAGS} ${STRICT_FLAGS}")
 108 set(CMAKE_C_FLAGS_RELEASE "-O2 ${RELEASE_FLAGS} ${STRICT_FLAGS}")
 109 set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 ${RELEASE_FLAGS} ${DEBUG_FLAGS} ${STRICT_FLAGS}")
 110
 111 # Add library project
 112 add_subdirectory(src)
 113 add_subdirectory(examples)
 114 add_subdirectory(doc)