-AC_INIT([libusb], [1.0.4])
+dnl These m4 macros are whitespace sensitive and break if moved around much.
+m4_define([LU_VERSION_H], m4_include([libusb/version.h]))
+m4_define([LU_DEFINE_VERSION_ATOM],
+ [m4_define([$1], m4_bregexp(LU_VERSION_H,
+ [^#define\s*$1\s*\([0-9]*\).*], [\1]))])
+m4_define([LU_DEFINE_VERSION_RC_ATOM],
+ [m4_define([$1], m4_bregexp(LU_VERSION_H,
+ [^#define\s*$1\s*"\(-rc[0-9]*\)".*], [\1]))])
+dnl The m4_bregexp() returns (only) the numbers following the #define named
+dnl in the first macro parameter. m4_define() then defines the name for use
+dnl in AC_INIT.
+
+LU_DEFINE_VERSION_ATOM([LIBUSB_MAJOR])
+LU_DEFINE_VERSION_ATOM([LIBUSB_MINOR])
+LU_DEFINE_VERSION_ATOM([LIBUSB_MICRO])
+LU_DEFINE_VERSION_RC_ATOM([LIBUSB_RC])
+
+AC_INIT([libusbx],[LIBUSB_MAJOR[.]LIBUSB_MINOR[.]LIBUSB_MICRO[]LIBUSB_RC],[libusbx-devel@lists.sourceforge.net],[libusbx],[http://libusbx.org])
+
+# Library versioning
+# These numbers should be tweaked on every release. Read carefully:
+# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
+# http://sourceware.org/autobook/autobook/autobook_91.html
+lt_current="1"
+lt_revision="0"
+lt_age="1"
+LTLDFLAGS="-version-info ${lt_current}:${lt_revision}:${lt_age}"
+
AM_INIT_AUTOMAKE
+AM_MAINTAINER_MODE
+
AC_CONFIG_SRCDIR([libusb/core.c])
AC_CONFIG_MACRO_DIR([m4])
-AM_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
AC_PREREQ([2.50])
AC_PROG_CC
-AC_PROG_LIBTOOL
+LT_INIT
+LT_LANG([Windows Resource])
AC_C_INLINE
AM_PROG_CC_C_O
-AC_DEFINE([_GNU_SOURCE], [], [Use GNU extensions])
+AC_DEFINE([_GNU_SOURCE], 1, [Use GNU extensions])
+
+LTLDFLAGS="${LTLDFLAGS} -no-undefined"
AC_MSG_CHECKING([operating system])
+
case $host in
*-linux*)
- AC_DEFINE(OS_LINUX, [], [Linux backend])
- AC_SUBST(OS_LINUX)
AC_MSG_RESULT([Linux])
backend="linux"
- AC_CHECK_LIB(rt, clock_gettime)
- AM_LDFLAGS=""
+ threads="posix"
;;
*-darwin*)
- AC_DEFINE(OS_DARWIN, [], [Darwin backend])
- AC_SUBST(OS_DARWIN)
- AC_DEFINE(USBI_OS_HANDLES_TIMEOUT, [], [Backend handles timeout])
- AC_MSG_RESULT([Darwin/MacOS X])
+ AC_MSG_RESULT([Darwin/Mac OS X])
backend="darwin"
- AM_LDFLAGS="-Wl,-framework -Wl,IOKit -Wl,-framework -Wl,CoreFoundation -Wl,-prebind -no-undefined"
+ threads="posix"
+ ;;
+*-openbsd*)
+ AC_MSG_RESULT([OpenBSD])
+ backend="bsd"
+ threads="posix"
+ ;;
+*-netbsd*)
+ AC_MSG_RESULT([NetBSD (using OpenBSD backend)])
+ backend="bsd"
+ threads="posix"
+ ;;
+*-mingw*)
+ AC_MSG_RESULT([Windows])
+ backend="windows"
+ threads="windows"
+ create_import_lib="yes"
+ AM_CFLAGS="${AM_CFLAGS} -fno-omit-frame-pointer"
+ ;;
+*-cygwin*)
+ AC_MSG_RESULT([Cygwin (using Windows backend)])
+ backend="windows"
+ threads="posix"
;;
*)
AC_MSG_ERROR([unsupported operating system])
esac
-AM_CONDITIONAL([OS_LINUX], [test "x$backend" == "xlinux"])
-AM_CONDITIONAL([OS_DARWIN], [test "x$backend" == "xdarwin"])
+case $backend in
+linux)
+ AC_DEFINE(OS_LINUX, 1, [Linux backend])
+ AC_SUBST(OS_LINUX)
+ AC_SEARCH_LIBS(clock_gettime, rt, [], [], -pthread)
+ THREAD_CFLAGS="-pthread"
+ LIBS="${LIBS} -pthread"
+ AC_CHECK_HEADERS([poll.h])
+ AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
+ ;;
+darwin)
+ AC_DEFINE(OS_DARWIN, 1, [Darwin backend])
+ AC_SUBST(OS_DARWIN)
+ LIBS="-lobjc -Wl,-framework,IOKit -Wl,-framework,CoreFoundation"
+ LTLDFLAGS="${LTLDFLAGS} -Wl,-prebind"
+ AC_CHECK_HEADERS([poll.h])
+ AC_CHECK_TYPE([nfds_t],
+ [AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])],
+ [AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument])],
+ [#include <poll.h>])
+ ;;
+bsd)
+ AC_DEFINE(OS_OPENBSD, 1, [OpenBSD/NetBSD backend])
+ AC_SUBST(OS_OPENBSD)
+ THREAD_CFLAGS="-pthread"
+ LIBS="-pthread"
+ AC_CHECK_HEADERS([poll.h])
+ AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
+ ;;
+windows)
+ AC_DEFINE(OS_WINDOWS, 1, [Windows backend])
+ AC_SUBST(OS_WINDOWS)
+ LIBS=""
+ LTLDFLAGS="${LTLDFLAGS} -avoid-version -Wl,--add-stdcall-alias"
+ AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument])
+ ;;
+esac
-# Library versioning
-lt_major="0"
-lt_revision="0"
-lt_age="0"
-AC_SUBST(lt_major)
-AC_SUBST(lt_revision)
-AC_SUBST(lt_age)
+AC_SUBST(LIBS)
+
+AM_CONDITIONAL(OS_LINUX, test "x$backend" = xlinux)
+AM_CONDITIONAL(OS_DARWIN, test "x$backend" = xdarwin)
+AM_CONDITIONAL(OS_OPENBSD, test "x$backend" = xbsd)
+AM_CONDITIONAL(OS_WINDOWS, test "x$backend" = xwindows)
+AM_CONDITIONAL(THREADS_POSIX, test "x$threads" = xposix)
+AM_CONDITIONAL(CREATE_IMPORT_LIB, test "x$create_import_lib" = "xyes")
+if test "$threads" = posix; then
+ AC_DEFINE(THREADS_POSIX, 1, [Use POSIX Threads])
+fi
# timerfd
AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=1], [timerfd_h=0])
[use_timerfd=$enableval], [use_timerfd='auto'])
if test "x$use_timerfd" = "xyes" -a "x$timerfd_h" = "x0"; then
- AC_MSG_ERROR([timerfd header not available; glibc 2.8+ required])
-error
+ AC_MSG_ERROR([timerfd header not available; glibc 2.9+ required])
+fi
+
+AC_CHECK_DECL([TFD_NONBLOCK], [tfd_hdr_ok=yes], [tfd_hdr_ok=no], [#include <sys/timerfd.h>])
+if test "x$use_timerfd" = "xyes" -a "x$tfd_hdr_ok" = "xno"; then
+ AC_MSG_ERROR([timerfd header not usable; glibc 2.9+ required])
fi
AC_MSG_CHECKING([whether to use timerfd for timing])
if test "x$use_timerfd" = "xno"; then
AC_MSG_RESULT([no (disabled by user)])
else
- if test "x$timerfd_h" = "x1"; then
+ if test "x$timerfd_h" = "x1" -a "x$tfd_hdr_ok" = "xyes"; then
AC_MSG_RESULT([yes])
- AC_DEFINE(USBI_TIMERFD_AVAILABLE, [], [timerfd headers available])
+ AC_DEFINE(USBI_TIMERFD_AVAILABLE, 1, [timerfd headers available])
else
AC_MSG_RESULT([no (header not available)])
fi
fi
+AC_CHECK_TYPES(struct timespec)
+
# Message logging
AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])],
[log_enabled=$enableval],
fi
AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log],
- [enable debug logging (default n)])],
+ [start with debug message logging enabled (default n)])],
[debug_log_enabled=$enableval],
[debug_log_enabled='no'])
if test "x$debug_log_enabled" != "xno"; then
- AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Debug message logging])
+ AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Start with debug message logging enabled])
fi
# Examples build
[build_examples='no'])
AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != "xno"])
-# Restore gnu89 inline semantics on gcc 4.3 and newer
-saved_cflags="$CFLAGS"
-CFLAGS="$CFLAGS -fgnu89-inline"
-AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), inline_cflags="-fgnu89-inline", inline_cflags="")
-CFLAGS="$saved_cflags"
+# Tests build
+AC_ARG_ENABLE([tests-build], [AS_HELP_STRING([--enable-tests-build],
+ [build test applications (default n)])],
+ [build_tests=$enableval],
+ [build_tests='no'])
+AM_CONDITIONAL([BUILD_TESTS], [test "x$build_tests" != "xno"])
# check for -fvisibility=hidden compiler support (GCC >= 3.4)
saved_cflags="$CFLAGS"
-CFLAGS="$CFLAGS -fvisibility=hidden"
-AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
+# -Werror required for cygwin
+CFLAGS="$CFLAGS -Werror -fvisibility=hidden"
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
[VISIBILITY_CFLAGS="-fvisibility=hidden"
- AC_DEFINE([API_EXPORTED], [__attribute__((visibility("default")))], [Default visibility]) ],
+ AC_DEFINE([DEFAULT_VISIBILITY], [__attribute__((visibility("default")))], [Default visibility]) ],
[ VISIBILITY_CFLAGS=""
- AC_DEFINE([API_EXPORTED], [], [Default visibility]) ],
+ AC_DEFINE([DEFAULT_VISIBILITY], [], [Default visibility]) ],
])
CFLAGS="$saved_cflags"
# check for -Wno-pointer-sign compiler support (GCC >= 4)
saved_cflags="$CFLAGS"
CFLAGS="$CFLAGS -Wno-pointer-sign"
-AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]),
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
CFLAGS="$saved_cflags"
-AM_CFLAGS="-std=gnu99 $inline_cflags -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow"
+# sigaction not available on MinGW
+AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no])
+AM_CONDITIONAL([HAVE_SIGACTION], [test "x$have_sigaction" = "xyes"])
-AC_SUBST(VISIBILITY_CFLAGS)
-AC_SUBST(AM_CFLAGS)
-AC_SUBST(AM_LDFLAGS)
+# headers not available on all platforms but required on others
+AC_CHECK_HEADERS([sys/time.h])
+AC_CHECK_FUNCS(gettimeofday)
+AC_CHECK_HEADERS([signal.h])
-AC_CONFIG_FILES([libusb-1.0.pc] [Makefile] [libusb/Makefile] [examples/Makefile] [doc/Makefile] [doc/doxygen.cfg])
-AC_OUTPUT
+AM_CFLAGS="${AM_CFLAGS} -std=gnu99 -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow ${THREAD_CFLAGS} ${VISIBILITY_CFLAGS}"
+AC_SUBST(AM_CFLAGS)
+AC_SUBST(LTLDFLAGS)
+
+AC_CONFIG_FILES([libusb-1.0.pc])
+AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([libusb/Makefile])
+AC_CONFIG_FILES([examples/Makefile])
+AC_CONFIG_FILES([tests/Makefile])
+AC_CONFIG_FILES([doc/Makefile])
+AC_CONFIG_FILES([doc/doxygen.cfg])
+AC_OUTPUT