1 AC_INIT([libusb], [1.0.4])
3 AC_CONFIG_SRCDIR([libusb/core.c])
4 AC_CONFIG_MACRO_DIR([m4])
5 AM_CONFIG_HEADER([config.h])
6 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
13 AC_DEFINE([_GNU_SOURCE], [], [Use GNU extensions])
15 AC_MSG_CHECKING([operating system])
18 AC_DEFINE(OS_LINUX, [], [Linux backend])
20 AC_MSG_RESULT([Linux])
22 AC_CHECK_LIB(rt, clock_gettime)
26 AC_DEFINE(OS_DARWIN, [], [Darwin backend])
28 AC_DEFINE(USBI_OS_HANDLES_TIMEOUT, [], [Backend handles timeout])
29 AC_MSG_RESULT([Darwin/MacOS X])
31 AM_LDFLAGS="-Wl,-framework -Wl,IOKit -Wl,-framework -Wl,CoreFoundation -Wl,-prebind -no-undefined"
34 AC_MSG_ERROR([unsupported operating system])
37 AM_CONDITIONAL([OS_LINUX], [test "x$backend" == "xlinux"])
38 AM_CONDITIONAL([OS_DARWIN], [test "x$backend" == "xdarwin"])
49 AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])],
50 [log_enabled=$enableval],
52 if test "x$log_enabled" != "xno"; then
53 AC_DEFINE([ENABLE_LOGGING], 1, [Message logging])
56 AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log],
57 [enable debug logging (default n)])],
58 [debug_log_enabled=$enableval],
59 [debug_log_enabled='no'])
60 if test "x$debug_log_enabled" != "xno"; then
61 AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Debug message logging])
65 AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build],
66 [build example applications (default n)])],
67 [build_examples=$enableval],
68 [build_examples='no'])
69 AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != "xno"])
71 # Restore gnu89 inline semantics on gcc 4.3 and newer
72 saved_cflags="$CFLAGS"
73 CFLAGS="$CFLAGS -fgnu89-inline"
74 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), inline_cflags="-fgnu89-inline", inline_cflags="")
75 CFLAGS="$saved_cflags"
77 # check for -fvisibility=hidden compiler support (GCC >= 3.4)
78 saved_cflags="$CFLAGS"
79 CFLAGS="$CFLAGS -fvisibility=hidden"
80 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
81 [VISIBILITY_CFLAGS="-fvisibility=hidden"
82 AC_DEFINE([API_EXPORTED], [__attribute__((visibility("default")))], [Default visibility]) ],
83 [ VISIBILITY_CFLAGS=""
84 AC_DEFINE([API_EXPORTED], [], [Default visibility]) ],
86 CFLAGS="$saved_cflags"
88 # check for -Wno-pointer-sign compiler support (GCC >= 4)
89 saved_cflags="$CFLAGS"
90 CFLAGS="$CFLAGS -Wno-pointer-sign"
91 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
92 nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
93 CFLAGS="$saved_cflags"
95 AM_CFLAGS="-std=gnu99 $inline_cflags -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow"
97 AC_SUBST(VISIBILITY_CFLAGS)
101 AC_CONFIG_FILES([libusb-1.0.pc] [Makefile] [libusb/Makefile] [examples/Makefile] [doc/Makefile] [doc/doxygen.cfg])