configure.ac

   1 AC_INIT([libusb], [1.0.3])
   2 AM_INIT_AUTOMAKE
   3 AC_CONFIG_SRCDIR([libusb/core.c])
   4 AC_CONFIG_MACRO_DIR([m4])
   5 AM_CONFIG_HEADER([config.h])
   6
   7 AC_PREREQ([2.50])
   8 AC_PROG_CC
   9 AC_PROG_LIBTOOL
  10 AC_C_INLINE
  11 AM_PROG_CC_C_O
  12 AC_DEFINE([_GNU_SOURCE], [], [Use GNU extensions])
  13
  14 AC_MSG_CHECKING([operating system])
  15 case $host in
  16 *-linux*)
  17         AC_DEFINE(OS_LINUX, [], [Linux backend])
  18         AC_SUBST(OS_LINUX)
  19         AC_MSG_RESULT([Linux])
  20         backend="linux"
  21         AC_CHECK_LIB(rt, clock_gettime)
  22         AM_LDFLAGS=""
  23         ;;
  24 *-darwin*)
  25         AC_DEFINE(OS_DARWIN, [], [Darwin backend])
  26         AC_SUBST(OS_DARWIN)
  27         AC_DEFINE(USBI_OS_HANDLES_TIMEOUT, [], [Backend handles timeout])
  28         AC_MSG_RESULT([Darwin/MacOS X])
  29         backend="darwin"
  30         AM_LDFLAGS="-Wl,-framework -Wl,IOKit -Wl,-framework -Wl,CoreFoundation -Wl,-prebind -no-undefined"
  31         ;;
  32 *)
  33         AC_MSG_ERROR([unsupported operating system])
  34 esac
  35
  36 AM_CONDITIONAL([OS_LINUX], [test "x$backend" == "xlinux"])
  37 AM_CONDITIONAL([OS_DARWIN], [test "x$backend" == "xdarwin"])
  38
  39 # Library versioning
  40 lt_major="0"
  41 lt_revision="0"
  42 lt_age="0"
  43 AC_SUBST(lt_major)
  44 AC_SUBST(lt_revision)
  45 AC_SUBST(lt_age)
  46
  47 # Message logging
  48 AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])],
  49         [log_enabled=$enableval],
  50         [log_enabled='yes'])
  51 if test "x$log_enabled" != "xno"; then
  52         AC_DEFINE([ENABLE_LOGGING], 1, [Message logging])
  53 fi
  54
  55 AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log],
  56         [enable debug logging (default n)])],
  57         [debug_log_enabled=$enableval],
  58         [debug_log_enabled='no'])
  59 if test "x$debug_log_enabled" != "xno"; then
  60         AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Debug message logging])
  61 fi
  62
  63 # Examples build
  64 AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build],
  65         [build example applications (default n)])],
  66         [build_examples=$enableval],
  67         [build_examples='no'])
  68 AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != "xno"])
  69
  70 # Restore gnu89 inline semantics on gcc 4.3 and newer
  71 saved_cflags="$CFLAGS"
  72 CFLAGS="$CFLAGS -fgnu89-inline"
  73 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), inline_cflags="-fgnu89-inline", inline_cflags="")
  74 CFLAGS="$saved_cflags"
  75
  76 # check for -fvisibility=hidden compiler support (GCC >= 3.4)
  77 saved_cflags="$CFLAGS"
  78 CFLAGS="$CFLAGS -fvisibility=hidden"
  79 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
  80         [VISIBILITY_CFLAGS="-fvisibility=hidden"
  81          AC_DEFINE([API_EXPORTED], [__attribute__((visibility("default")))], [Default visibility]) ],
  82         [ VISIBILITY_CFLAGS=""
  83          AC_DEFINE([API_EXPORTED], [], [Default visibility]) ],
  84         ])
  85 CFLAGS="$saved_cflags"
  86
  87 # check for -Wno-pointer-sign compiler support (GCC >= 4)
  88 saved_cflags="$CFLAGS"
  89 CFLAGS="$CFLAGS -Wno-pointer-sign"
  90 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
  91         nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
  92 CFLAGS="$saved_cflags"
  93
  94 AM_CFLAGS="-std=gnu99 $inline_cflags -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow"
  95
  96 AC_SUBST(VISIBILITY_CFLAGS)
  97 AC_SUBST(AM_CFLAGS)
  98 AC_SUBST(AM_LDFLAGS)
  99
 100 AC_CONFIG_FILES([libusb-1.0.pc] [Makefile] [libusb/Makefile] [examples/Makefile] [doc/Makefile] [doc/doxygen.cfg])
 101 AC_OUTPUT
 102