1 m4_define(LIBUSB_MAJOR, [1])
2 m4_define(LIBUSB_MINOR, [0])
3 m4_define(LIBUSB_MICRO, [8])
5 AC_INIT([libusb], LIBUSB_MAJOR.LIBUSB_MINOR.LIBUSB_MICRO, [libusb-devel@lists.sourceforge.net], [libusb], [http://www.libusb.org/])
7 AC_SUBST([LIBUSB_VERSION_MAJOR], [LIBUSB_MAJOR])
8 AC_SUBST([LIBUSB_VERSION_MINOR], [LIBUSB_MINOR])
9 AC_SUBST([LIBUSB_VERSION_MICRO], [LIBUSB_MICRO])
12 AC_CONFIG_SRCDIR([libusb/core.c])
13 AC_CONFIG_MACRO_DIR([m4])
14 AM_CONFIG_HEADER([config.h])
15 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
22 AC_DEFINE([_GNU_SOURCE], [], [Use GNU extensions])
26 AC_MSG_CHECKING([operating system])
29 AC_DEFINE(OS_LINUX, [], [Linux backend])
31 AC_DEFINE([THREADS_POSIX], [], [Use Posix Threads])
32 AC_MSG_RESULT([Linux])
34 AC_CHECK_LIB(rt, clock_gettime)
36 THREAD_CFLAGS="-pthread"
40 AC_DEFINE(OS_DARWIN, [], [Darwin backend])
42 AC_DEFINE([THREADS_POSIX], [], [Use Posix Threads])
43 AC_DEFINE(USBI_OS_HANDLES_TIMEOUT, [], [Backend handles timeout])
44 AC_MSG_RESULT([Darwin/MacOS X])
47 THREAD_CFLAGS="-pthread"
48 AM_LDFLAGS="-Wl,-framework -Wl,IOKit -Wl,-framework -Wl,CoreFoundation -Wl,-prebind -no-undefined"
51 AC_DEFINE(OS_WINDOWS, [], [Windows backend])
53 AC_MSG_RESULT([Windows])
56 LIBS="-lsetupapi -lole32 -ladvapi32"
57 # -avoid-version to avoid a naming scheme such as libusb-0.dll
58 AM_LDFLAGS="-no-undefined -avoid-version"
59 AC_CHECK_TOOL(RC, windres, no)
62 AC_DEFINE(OS_WINDOWS, [], [Windows backend])
64 AC_DEFINE([THREADS_POSIX], [], [Use Posix Threads])
65 AC_MSG_RESULT([Windows])
68 LIBS="-lsetupapi -lole32 -ladvapi32"
69 AM_LDFLAGS="-no-undefined -avoid-version"
70 AC_CHECK_TOOL(RC, windres, no)
73 AC_MSG_ERROR([unsupported operating system])
76 AM_CONDITIONAL([OS_LINUX], [test "x$backend" = "xlinux"])
77 AM_CONDITIONAL([OS_DARWIN], [test "x$backend" = "xdarwin"])
78 AM_CONDITIONAL([OS_WINDOWS], [test "x$backend" = "xwindows"])
79 AM_CONDITIONAL([THREADS_POSIX], [test "x$threads" = "xposix"])
90 AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=1], [timerfd_h=0])
91 AC_ARG_ENABLE([timerfd],
92 [AS_HELP_STRING([--enable-timerfd],
93 [use timerfd for timing (default auto)])],
94 [use_timerfd=$enableval], [use_timerfd='auto'])
96 if test "x$use_timerfd" = "xyes" -a "x$timerfd_h" = "x0"; then
97 AC_MSG_ERROR([timerfd header not available; glibc 2.9+ required])
100 AC_CHECK_DECL([TFD_NONBLOCK], [tfd_hdr_ok=yes], [tfd_hdr_ok=no], [#include <sys/timerfd.h>])
101 if test "x$use_timerfd" = "xyes" -a "x$tfd_hdr_ok" = "xno"; then
102 AC_MSG_ERROR([timerfd header not usable; glibc 2.9+ required])
105 AC_MSG_CHECKING([whether to use timerfd for timing])
106 if test "x$use_timerfd" = "xno"; then
107 AC_MSG_RESULT([no (disabled by user)])
109 if test "x$timerfd_h" = "x1" -a "x$tfd_hdr_ok" = "xyes"; then
111 AC_DEFINE(USBI_TIMERFD_AVAILABLE, [], [timerfd headers available])
113 AC_MSG_RESULT([no (header not available)])
117 AC_CHECK_TYPES(struct timespec)
120 AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])],
121 [log_enabled=$enableval],
123 if test "x$log_enabled" != "xno"; then
124 AC_DEFINE([ENABLE_LOGGING], 1, [Message logging])
127 AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log],
128 [enable debug logging (default n)])],
129 [debug_log_enabled=$enableval],
130 [debug_log_enabled='no'])
131 if test "x$debug_log_enabled" != "xno"; then
132 AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Debug message logging])
136 AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build],
137 [build example applications (default n)])],
138 [build_examples=$enableval],
139 [build_examples='no'])
140 AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != "xno"])
142 # Restore gnu89 inline semantics on gcc 4.3 and newer
143 saved_cflags="$CFLAGS"
144 CFLAGS="$CFLAGS -fgnu89-inline"
145 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), inline_cflags="-fgnu89-inline", inline_cflags="")
146 CFLAGS="$saved_cflags"
148 # check for -fvisibility=hidden compiler support (GCC >= 3.4)
149 saved_cflags="$CFLAGS"
150 # -Werror required for cygwin
151 CFLAGS="$CFLAGS -Werror -fvisibility=hidden"
152 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
153 [VISIBILITY_CFLAGS="-fvisibility=hidden"
154 AC_DEFINE([API_EXPORTED], [__attribute__((visibility("default")))], [Default visibility]) ],
155 [ VISIBILITY_CFLAGS=""
156 AC_DEFINE([API_EXPORTED], [], [Default visibility]) ],
158 CFLAGS="$saved_cflags"
160 # check for -Wno-pointer-sign compiler support (GCC >= 4)
161 saved_cflags="$CFLAGS"
162 CFLAGS="$CFLAGS -Wno-pointer-sign"
163 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
164 nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
165 CFLAGS="$saved_cflags"
167 # sigaction not available on MinGW
168 AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no])
169 AM_CONDITIONAL([HAVE_SIGACTION], [test "x$have_sigaction" = "xyes"])
171 # headers not available on all platforms but required on others
172 AC_CHECK_HEADERS([sys/time.h])
174 AC_SUBST([THREAD_CFLAGS])
176 AM_CFLAGS="-std=gnu99 $inline_cflags -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow"
178 AC_SUBST(VISIBILITY_CFLAGS)
182 AC_CONFIG_FILES([libusb-1.0.pc] [Makefile] [libusb/Makefile] [libusb/libusb-1.0.rc] [examples/Makefile] [doc/Makefile] [doc/doxygen.cfg])