LU_DEFINE_VERSION_ATOM([LIBUSB_MICRO])
LU_DEFINE_VERSION_RC_ATOM([LIBUSB_RC])
+AC_PREREQ([2.69])
AC_INIT([libusb-1.0], [LIBUSB_MAJOR[.]LIBUSB_MINOR[.]LIBUSB_MICRO[]LIBUSB_RC], [libusb-devel@lists.sourceforge.net], [libusb-1.0], [http://libusb.info])
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_SRCDIR([libusb/core.c])
+AC_CONFIG_MACRO_DIR([m4])
+AC_PROG_CC
+AC_PROG_CXX
+AC_C_INLINE
+AM_INIT_AUTOMAKE
+LT_INIT
+LT_LANG([Windows Resource])
dnl Library versioning
dnl These numbers should be tweaked on every release. Read carefully:
dnl http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
dnl http://sourceware.org/autobook/autobook/autobook_91.html
-lt_current=2
+lt_current=3
lt_revision=0
-lt_age=2
-LTLDFLAGS="-version-info ${lt_current}:${lt_revision}:${lt_age}"
-
-AM_INIT_AUTOMAKE
+lt_age=3
+LT_LDFLAGS="-version-info ${lt_current}:${lt_revision}:${lt_age} -no-undefined"
-AC_CONFIG_SRCDIR([libusb/core.c])
-AC_CONFIG_MACRO_DIR([m4])
-AC_CONFIG_HEADERS([config.h])
m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
-AC_PREREQ([2.69])
-AC_PROG_CC
-AC_PROG_CXX
-LT_INIT
-LT_LANG([Windows Resource])
-AC_C_INLINE
-AM_PROG_CC_C_O
-AC_DEFINE([_GNU_SOURCE], [1], [Use GNU extensions])
+EXTRA_CPPFLAGS=
+EXTRA_CFLAGS=
+
+dnl check for -std=gnu11 compiler support (optional)
+dnl note that we don't just check if the compiler accepts '-std=x11'
+dnl but also that it supports the _Thread_local keyword because some compilers
+dnl (e.g. gcc 4.8) accept the command line option but do not implement TLS
+saved_CFLAGS="${CFLAGS}"
+CFLAGS="-std=gnu11"
+AC_MSG_CHECKING([if $CC supports -std=gnu11])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([_Thread_local int x;], [x = 42;])],
+ [AC_MSG_RESULT([yes])
+ c_dialect=gnu],
+ [AC_MSG_RESULT([no])
+ c_dialect=])
+if test "x$c_dialect" != xgnu; then
+ dnl fallback check for -std=c11 compiler support (required)
+ CFLAGS="-std=c11"
+ AC_MSG_CHECKING([if $CC supports -std=c11])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([_Thread_local int x;], [x = 42;])],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ AC_MSG_ERROR([compiler with C11 support is required to build libusb])])
+ c_dialect=c
+fi
+CFLAGS="${saved_CFLAGS}"
-LTLDFLAGS="${LTLDFLAGS} -no-undefined"
+AC_DEFINE([_GNU_SOURCE], [1], [Enable GNU extensions.])
+AC_DEFINE([DEFAULT_VISIBILITY], [__attribute__ ((visibility ("default")))], [Define to the attribute for default visibility.])
+AC_DEFINE([PRINTF_FORMAT(a, b)], [__attribute__ ((__format__ (__printf__, a, b)))], [Define to the attribute for enabling parameter checks on printf-like functions.])
+create_import_lib=
+is_android_linux=
AC_MSG_CHECKING([operating system])
case $host in
*-darwin*)
AC_MSG_RESULT([Darwin/Mac OS X])
backend=darwin
- poll=posix
- threads=posix
+ platform=posix
;;
*-haiku*)
AC_MSG_RESULT([Haiku])
backend=haiku
- poll=posix
- threads=posix
+ platform=posix
;;
*-linux* | *-uclinux*)
- dnl on linux-android platform, some functions are in different places
+ dnl on Android Linux, some functions are in different places
case $host in
*-linux-android*)
- AC_MSG_RESULT([Linux (Android system)])
- is_backend_android=yes
+ AC_MSG_RESULT([Android Linux])
+ is_android_linux=yes
;;
*)
AC_MSG_RESULT([Linux])
- is_backend_android=no
;;
esac
backend=linux
- poll=posix
- threads=posix
+ platform=posix
;;
*-netbsd*)
AC_MSG_RESULT([NetBSD])
backend=netbsd
- poll=posix
- threads=posix
+ platform=posix
;;
*-openbsd*)
AC_MSG_RESULT([OpenBSD])
backend=openbsd
- poll=posix
- threads=posix
+ platform=posix
;;
*-solaris*)
AC_MSG_RESULT([SunOS])
backend=sunos
- poll=posix
- threads=posix
+ platform=posix
;;
*-cygwin*)
AC_MSG_RESULT([Windows (using Cygwin)])
backend=windows
- poll=windows
- threads=posix
+ platform=windows
+ EXTRA_CFLAGS="-mwin32"
;;
*-mingw* | *msys*)
AC_MSG_RESULT([Windows])
backend=windows
- poll=windows
- threads=windows
+ platform=windows
test "x$enable_shared" = xyes && create_import_lib=yes
- AM_CFLAGS="${AM_CFLAGS} -fno-omit-frame-pointer"
+ EXTRA_CFLAGS="-mwin32 -fno-omit-frame-pointer"
;;
*)
AC_MSG_RESULT([Null])
- backend="null"
- poll=posix
- threads="posix"
+ AC_MSG_WARN([The host being compiled for is not supported.])
+ AC_MSG_WARN([The library may compile but will not function in any useful manner.])
+ backend=null
+ platform=posix
;;
esac
+if test "x$platform" = xposix; then
+ AC_DEFINE([PLATFORM_POSIX], [1], [Define to 1 if compiling for a POSIX platform.])
+ AC_CHECK_TYPES([nfds_t], [], [], [[#include <poll.h>]])
+ AC_CHECK_FUNCS([pipe2])
+ dnl Some compilers do not support the '-pthread' option so check for it here
+ saved_CFLAGS="${CFLAGS}"
+ CFLAGS="-Wall -Werror -pthread"
+ AC_MSG_CHECKING([if $CC recognizes -pthread])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])],
+ [AC_MSG_RESULT([yes])
+ AC_SUBST(THREAD_CFLAGS, [-pthread])],
+ [AC_MSG_RESULT([no])])
+ CFLAGS="${saved_CFLAGS}"
+ dnl Android Linux and Darwin provide pthread functions directly in libc
+ dnl glibc also provides some pthread functions directly, so search for a thread-specific function
+ AC_SEARCH_LIBS([pthread_create], [pthread],
+ [test "x$ac_cv_search_pthread_create" != "xnone required" && AC_SUBST(THREAD_LIBS, [-lpthread])],
+ [], [])
+elif test "x$platform" = xwindows; then
+ AC_DEFINE([PLATFORM_WINDOWS], [1], [Define to 1 if compiling for a Windows platform.])
+else
+ AC_MSG_ERROR([Unknown platform])
+fi
+
case $backend in
darwin)
- AC_DEFINE([OS_DARWIN], [1], [Darwin backend])
AC_CHECK_FUNCS([pthread_threadid_np])
- LIBS="-lobjc -Wl,-framework,IOKit -Wl,-framework,CoreFoundation"
- LTLDFLAGS="${LTLDFLAGS} -Wl,-prebind"
+ LIBS="${LIBS} -lobjc -Wl,-framework,IOKit -Wl,-framework,CoreFoundation -Wl,-framework,Security"
+ AC_CHECK_HEADERS([IOKit/usb/IOUSBHostFamilyDefinitions.h])
;;
haiku)
- AC_DEFINE([OS_HAIKU], [1], [Haiku backend])
- LIBS="-lbe"
+ LIBS="${LIBS} -lbe"
;;
linux)
- AC_DEFINE([OS_LINUX], [1], [Linux backend])
- AC_SEARCH_LIBS([clock_gettime], [rt], [], [], [-pthread])
+ AC_ARG_ENABLE([usbhost_api],
+ [AC_HELP_STRING([--enable-usbhost-api], [Request to deviced to obtain dev node fds [default=no]])],
+ [], [enable_usbhost_api="no"])
+ if test "x$enable_usbhost_api" = "xyes"; then
+ PKG_CHECK_MODULES([USBHOST_API], [dbus-1])
+ AC_DEFINE(USE_USBHOST_API, 1, [Request to deviced to obtain dev node fds])
+ fi
+
+ AC_SUBST(USE_USBHOST_API)
+
+ AC_SEARCH_LIBS([clock_gettime], [rt], [], [], [])
+ AC_CHECK_FUNCS([pthread_setname_np])
AC_ARG_ENABLE([udev],
- [AC_HELP_STRING([--enable-udev], [use udev for device enumeration and hotplug support (recommended) [default=yes]])],
- [], [enable_udev=yes])
- if test "x$enable_udev" = xyes ; then
+ [AS_HELP_STRING([--enable-udev], [use udev for device enumeration and hotplug support (recommended) [default=yes]])],
+ [use_udev=$enableval], [use_udev=yes])
+ if test "x$use_udev" = xyes; then
dnl system has udev. use it or fail!
AC_CHECK_HEADER([libudev.h], [], [AC_MSG_ERROR([udev support requested but libudev header not installed])])
AC_CHECK_LIB([udev], [udev_new], [], [AC_MSG_ERROR([udev support requested but libudev not installed])])
AC_CHECK_HEADER([linux/netlink.h], [], [AC_MSG_ERROR([Linux netlink header not found])])
AC_CHECK_HEADER([sys/socket.h], [], [AC_MSG_ERROR([Linux socket header not found])])
fi
- if test "x$is_backend_android" != xyes; then
- THREAD_CFLAGS="-pthread"
- LIBS="${LIBS} -pthread"
- fi
- AC_CHECK_FUNCS([pthread_setname_np])
- ;;
-netbsd)
- AC_DEFINE([OS_NETBSD], [1], [NetBSD backend])
- THREAD_CFLAGS="-pthread"
- LIBS="-pthread"
- ;;
-null)
- AC_DEFINE([OS_NULL], [1], [Null backend])
- THREAD_CFLAGS="-pthread"
- LIBS="-pthread"
- ;;
-openbsd)
- AC_DEFINE([OS_OPENBSD], [1], [OpenBSD backend])
- THREAD_CFLAGS="-pthread"
- LIBS="-pthread"
;;
sunos)
- AC_DEFINE([OS_SUNOS], [1], [SunOS backend])
- THREAD_CFLAGS="-pthread"
- LIBS="-pthread -ldevinfo"
+ LIBS="${LIBS} -ldevinfo"
;;
windows)
- AC_DEFINE([OS_WINDOWS], [1], [Windows backend])
AC_CHECK_TYPES([struct timespec], [], [], [[#include <time.h>]])
- LIBS=""
- LTLDFLAGS="${LTLDFLAGS} -avoid-version -Wl,--add-stdcall-alias"
- AC_DEFINE([_WIN32_WINNT], [_WIN32_WINNT_VISTA], [Oldest Windows version supported (Vista)])
+ AC_DEFINE([_WIN32_WINNT], [_WIN32_WINNT_VISTA], [Define to the oldest supported Windows version.])
+ LT_LDFLAGS="${LT_LDFLAGS} -avoid-version -Wl,--add-stdcall-alias"
;;
*)
- AC_MSG_ERROR([Unknown backend])
+ dnl no special handling required
;;
esac
-AC_SUBST(LIBS)
-
-AM_CONDITIONAL([OS_DARWIN], [test "x$backend" = xdarwin])
-AM_CONDITIONAL([OS_HAIKU], [test "x$backend" = xhaiku])
-AM_CONDITIONAL([OS_LINUX], [test "x$backend" = xlinux])
-AM_CONDITIONAL([OS_NETBSD], [test "x$backend" = xnetbsd])
-AM_CONDITIONAL([OS_NULL], [test "x$backend" = xnull])
-AM_CONDITIONAL([OS_OPENBSD], [test "x$backend" = xopenbsd])
-AM_CONDITIONAL([OS_SUNOS], [test "x$backend" = xsunos])
-AM_CONDITIONAL([OS_WINDOWS], [test "x$backend" = xwindows])
-AM_CONDITIONAL([POLL_POSIX], [test "x$poll" = xposix])
-AM_CONDITIONAL([POLL_WINDOWS], [test "x$poll" = xwindows])
-AM_CONDITIONAL([THREADS_POSIX], [test "x$threads" = xposix])
-AM_CONDITIONAL([THREADS_WINDOWS], [test "x$threads" = xwindows])
-AM_CONDITIONAL([CREATE_IMPORT_LIB], [test "x$create_import_lib" = xyes])
-AM_CONDITIONAL([USE_UDEV], [test "x$enable_udev" = xyes])
+dnl headers not available on all platforms but required on others
+AC_CHECK_HEADERS([sys/time.h])
-if test "x$poll" = xposix; then
- AC_DEFINE([POLL_POSIX], [1], [Use POSIX poll() implementation])
- AC_CHECK_TYPES([nfds_t], [], [], [[#include <poll.h>]])
- AC_CHECK_FUNCS([pipe2])
-elif test "x$poll" = xwindows; then
- AC_DEFINE([POLL_WINDOWS], [1], [Use Windows poll() implementation])
-else
- AC_MSG_ERROR([Unknown poll implementation])
-fi
+if test "x$platform" = xposix; then
+ dnl check availability of clock_gettime()
+ if test "x$backend" = xdarwin; then
+ dnl need to verify that OS X target is 10.12 or later for clock_gettime()
+ AC_MSG_CHECKING([whether OS X target version is 10.12 or later])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
+ #include <AvailabilityMacros.h>
+ #if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_12
+ # error "Target OS X version is too old"
+ #endif
+ ], [])],
+ [AC_MSG_RESULT([yes])
+ osx_10_12_or_later=yes],
+ [AC_MSG_RESULT([no])
+ osx_10_12_or_later=])
+ if test "x$osx_10_12_or_later" = xyes; then
+ AC_CHECK_FUNCS([clock_gettime], [have_clock_gettime=yes], [have_clock_gettime=])
+ else
+ AC_MSG_NOTICE([clock_gettime() is not available on target OS X version])
+ fi
+ else
+ AC_CHECK_FUNCS([clock_gettime], [have_clock_gettime=yes], [AC_MSG_ERROR([clock_gettime() is required on this platform])])
+ fi
-if test "x$threads" = xposix; then
- AC_DEFINE([THREADS_POSIX], [1], [Use POSIX Threads])
-elif test "x$threads" = xwindows; then
- AC_DEFINE([THREADS_WINDOWS], [1], [Use Windows Threads])
-else
- AC_MSG_ERROR([Unknown threads implementation])
+ if test "x$have_clock_gettime" = xyes; then
+ dnl the clock_gettime() function needs certain clock IDs defined
+ AC_CHECK_DECL([CLOCK_MONOTONIC], [], [AC_MSG_ERROR([C library headers missing definition for CLOCK_MONOTONIC])], [[#include <time.h>]])
+ dnl use the monotonic clock for condition variable timed waits if possible
+ AC_CHECK_FUNCS([pthread_condattr_setclock], [need_clock_realtime=], [need_clock_realtime=yes])
+ if test "x$need_clock_realtime" = xyes; then
+ AC_CHECK_DECL([CLOCK_REALTIME], [], [AC_MSG_ERROR([C library headers missing definition for CLOCK_REALTIME])], [[#include <time.h>]])
+ fi
+ fi
fi
-dnl headers not available on all platforms but required on others
-AC_CHECK_HEADERS([sys/time.h])
-
-dnl the clock_gettime() function needs certain clock IDs defined
-AC_CHECK_FUNCS([clock_gettime], [have_clock_gettime=yes], [have_clockgettime=no])
-if test "x$have_clock_gettime" = xyes; then
- AC_CHECK_DECL([CLOCK_REALTIME], [], [AC_MSG_ERROR([C library headers missing definition for CLOCK_REALTIME])], [[#include <time.h>]])
- AC_CHECK_DECL([CLOCK_MONOTONIC], [], [AC_MSG_ERROR([C library headers missing definition for CLOCK_MONOTONIC])], [[#include <time.h>]])
-elif test "x$backend" != xdarwin && test "x$backend" != xwindows; then
- AC_MSG_ERROR([clock_gettime() is required on this platform])
+dnl eventfd support
+if test "x$backend" = xlinux || test "x$backend" = xsunos; then
+ AC_ARG_ENABLE([eventfd],
+ [AS_HELP_STRING([--enable-eventfd], [use eventfd for signalling [default=auto]])],
+ [use_eventfd=$enableval],
+ [use_eventfd=auto])
+ if test "x$use_eventfd" != xno; then
+ AC_CHECK_HEADER([sys/eventfd.h], [eventfd_h=yes], [eventfd_h=])
+ if test "x$eventfd_h" = xyes; then
+ AC_CHECK_DECLS([EFD_NONBLOCK, EFD_CLOEXEC], [eventfd_h_ok=yes], [eventfd_h_ok=], [[#include <sys/eventfd.h>]])
+ if test "x$eventfd_h_ok" = xyes; then
+ AC_CHECK_FUNC([eventfd], [eventfd_ok=yes], [eventfd_ok=])
+ if test "x$eventfd_ok" = xyes; then
+ AC_DEFINE([HAVE_EVENTFD], [1], [Define to 1 if the system has eventfd functionality.])
+ elif test "x$use_eventfd" = xyes; then
+ AC_MSG_ERROR([eventfd() function not found; glibc 2.9+ required])
+ fi
+ elif test "x$use_eventfd" = xyes; then
+ AC_MSG_ERROR([eventfd header not usable; glibc 2.9+ required])
+ fi
+ elif test "x$use_eventfd" = xyes; then
+ AC_MSG_ERROR([eventfd header not available; glibc 2.9+ required])
+ fi
+ fi
+ AC_MSG_CHECKING([whether to use eventfd for signalling])
+ if test "x$use_eventfd" = xno; then
+ AC_MSG_RESULT([no (disabled by user)])
+ elif test "x$eventfd_h" != xyes; then
+ AC_MSG_RESULT([no (header not available)])
+ elif test "x$eventfd_h_ok" != xyes; then
+ AC_MSG_RESULT([no (header not usable)])
+ elif test "x$eventfd_ok" != xyes; then
+ AC_MSG_RESULT([no (functions not available)])
+ else
+ AC_MSG_RESULT([yes])
+ fi
fi
dnl timerfd support
[use_timerfd=$enableval],
[use_timerfd=auto])
if test "x$use_timerfd" != xno; then
- AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=yes], [timerfd_h=no])
+ AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=yes], [timerfd_h=])
if test "x$timerfd_h" = xyes; then
- AC_CHECK_DECLS([TFD_NONBLOCK, TFD_CLOEXEC], [timerfd_h_ok=yes], [timerfd_h_ok=no], [[#include <sys/timerfd.h>]])
+ AC_CHECK_DECLS([TFD_NONBLOCK, TFD_CLOEXEC], [timerfd_h_ok=yes], [timerfd_h_ok=], [[#include <sys/timerfd.h>]])
if test "x$timerfd_h_ok" = xyes; then
- AC_CHECK_FUNC([timerfd_create], [timerfd_ok=yes], [timerfd_ok=no])
+ AC_CHECK_FUNC([timerfd_create], [timerfd_ok=yes], [timerfd_ok=])
if test "x$timerfd_ok" = xyes; then
- AC_DEFINE([HAVE_TIMERFD], [1], [Define if the system has timerfd functionality])
+ AC_DEFINE([HAVE_TIMERFD], [1], [Define to 1 if the system has timerfd functionality.])
elif test "x$use_timerfd" = xyes; then
AC_MSG_ERROR([timerfd_create() function not found; glibc 2.9+ required])
fi
AC_MSG_CHECKING([whether to use timerfd for timing])
if test "x$use_timerfd" = xno; then
AC_MSG_RESULT([no (disabled by user)])
- elif test "x$timerfd_h" = xno; then
- AC_MSG_RESULT([no (header not usable)])
- elif test "x$timerfd_h_ok" = xno; then
+ elif test "x$timerfd_h" != xyes; then
AC_MSG_RESULT([no (header not available)])
- elif test "x$timerfd_ok" = xno; then
+ elif test "x$timerfd_h_ok" != xyes; then
+ AC_MSG_RESULT([no (header not usable)])
+ elif test "x$timerfd_ok" != xyes; then
AC_MSG_RESULT([no (functions not available)])
else
AC_MSG_RESULT([yes])
[log_enabled=$enableval],
[log_enabled=yes])
if test "x$log_enabled" != xno; then
- AC_DEFINE([ENABLE_LOGGING], [1], [Message logging])
+ AC_DEFINE([ENABLE_LOGGING], [1], [Define to 1 to enable message logging.])
fi
AC_ARG_ENABLE([debug-log],
[debug_log_enabled=$enableval],
[debug_log_enabled=no])
if test "x$debug_log_enabled" != xno; then
- AC_DEFINE([ENABLE_DEBUG_LOGGING], [1], [Start with debug message logging enabled])
+ AC_DEFINE([ENABLE_DEBUG_LOGGING], [1], [Define to 1 to start with debug message logging enabled.])
fi
AC_ARG_ENABLE([system-log],
- [AS_HELP_STRING([--enable-system-log], [output logging messages to system wide log, if supported by the OS [default=no]])],
+ [AS_HELP_STRING([--enable-system-log], [output logging messages to the systemwide log, if supported by the OS [default=no]])],
[system_log_enabled=$enableval],
[system_log_enabled=no])
if test "x$system_log_enabled" != xno; then
- AC_DEFINE([USE_SYSTEM_LOGGING_FACILITY], [1], [Enable output to system log])
- if test "x$backend" != xwindows && test "x$is_backend_android" != xyes; then
+ AC_DEFINE([USE_SYSTEM_LOGGING_FACILITY], [1], [Define to 1 to output logging messages to the systemwide log.])
+ if test "x$backend" != xwindows && test "x$is_android_linux" != xyes; then
dnl Check if syslog is available in standard C library
- AC_CHECK_HEADER([syslog.h], [syslog_h=yes], [syslog_h=no])
+ AC_CHECK_HEADER([syslog.h], [syslog_h=yes], [syslog_h=])
if test "x$syslog_h" = xyes; then
AC_CHECK_FUNCS([syslog])
fi
[AS_HELP_STRING([--enable-examples-build], [build example applications [default=no]])],
[build_examples=$enableval],
[build_examples=no])
-AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != xno])
dnl Tests build
AC_ARG_ENABLE([tests-build],
[AS_HELP_STRING([--enable-tests-build], [build test applications [default=no]])],
[build_tests=$enableval],
[build_tests=no])
-AM_CONDITIONAL([BUILD_TESTS], [test "x$build_tests" != xno])
-dnl sigaction needed for some example programs
-if test "x$build_examples" != xno; then
- AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no])
-fi
-AM_CONDITIONAL([HAVE_SIGACTION], [test "x$have_sigaction" = xyes])
-
-dnl check for -fvisibility=hidden compiler support (GCC >= 3.4)
-saved_CFLAGS="${CFLAGS}"
-dnl -Werror required for cygwin
-CFLAGS="${CFLAGS} -Werror -fvisibility=hidden"
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
- [VISIBILITY_CFLAGS="-fvisibility=hidden"
- AC_DEFINE([DEFAULT_VISIBILITY], [__attribute__((visibility("default")))], [Default visibility])],
- [VISIBILITY_CFLAGS=""
- AC_DEFINE([DEFAULT_VISIBILITY], [], [Default visibility])],
- ])
-CFLAGS="${saved_CFLAGS}"
-
-dnl check for -Wno-pointer-sign compiler support (GCC >= 4)
-saved_CFLAGS="${CFLAGS}"
-CFLAGS="${CFLAGS} -Wno-pointer-sign"
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
- nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
-CFLAGS="${saved_CFLAGS}"
-
-dnl check for -std=gnu11 compiler support
-saved_CFLAGS="${CFLAGS}"
-CFLAGS="-std=gnu11"
-AC_MSG_CHECKING([whether CC supports -std=gnu11])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
- [AC_MSG_RESULT([yes])
- AM_CFLAGS="${AM_CFLAGS} -std=gnu11"],
- [AC_MSG_RESULT([no])])
-CFLAGS="${saved_CFLAGS}"
+AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != xno])
+AM_CONDITIONAL([BUILD_TESTS], [test "x$build_tests" != xno])
+AM_CONDITIONAL([CREATE_IMPORT_LIB], [test "x$create_import_lib" = xyes])
+AM_CONDITIONAL([OS_DARWIN], [test "x$backend" = xdarwin])
+AM_CONDITIONAL([OS_HAIKU], [test "x$backend" = xhaiku])
+AM_CONDITIONAL([OS_LINUX], [test "x$backend" = xlinux])
+AM_CONDITIONAL([OS_NETBSD], [test "x$backend" = xnetbsd])
+AM_CONDITIONAL([OS_NULL], [test "x$backend" = xnull])
+AM_CONDITIONAL([OS_OPENBSD], [test "x$backend" = xopenbsd])
+AM_CONDITIONAL([OS_SUNOS], [test "x$backend" = xsunos])
+AM_CONDITIONAL([OS_WINDOWS], [test "x$backend" = xwindows])
+AM_CONDITIONAL([PLATFORM_POSIX], [test "x$platform" = xposix])
+AM_CONDITIONAL([PLATFORM_WINDOWS], [test "x$platform" = xwindows])
+AM_CONDITIONAL([USE_UDEV], [test "x$use_udev" = xyes])
+AM_CONDITIONAL([USE_USBHOST_API], [test "x$enable_usbhost_api" = "xyes"])
-dnl check for _Thread_local compiler support
-if test "x$backend" != xwindows; then
+dnl The -Wcast-function-type warning causes a flurry of warnings when compiling
+dnl Windows with GCC 8 or later because of dynamically loaded functions
+if test "x$backend" = xwindows; then
saved_CFLAGS="${CFLAGS}"
- saved_LDFLAGS="${LDFLAGS}"
- CFLAGS="${CFLAGS} -fPIC"
- LDFLAGS="${LDFLAGS} -shared"
- AC_MSG_CHECKING([whether CC supports _Thread_local])
- AC_LINK_IFELSE([AC_LANG_PROGRAM([], [static _Thread_local int v])],
- [AC_MSG_RESULT([yes])
- AC_DEFINE([HAVE_CC_THREAD_LOCAL], [1], [Define to 1 if the compiler supports _Thread_local.])],
- [AC_MSG_RESULT([no])])
+ CFLAGS="-Werror -Wcast-function-type"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])],
+ [EXTRA_CFLAGS="${EXTRA_CFLAGS} -Wno-cast-function-type"],
+ [])
CFLAGS="${saved_CFLAGS}"
- LDFLAGS="${saved_LDFLAGS}"
fi
-AM_CFLAGS="${AM_CFLAGS} -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration ${nopointersign_cflags} -Wshadow ${THREAD_CFLAGS} ${VISIBILITY_CFLAGS}"
+SHARED_CFLAGS="-Wall -Wextra -Wshadow -Wunused -Wwrite-strings -Werror=format-security -Werror=implicit-function-declaration -Werror=implicit-int -Werror=init-self -Werror=missing-prototypes -Werror=strict-prototypes -Werror=undef -Werror=uninitialized"
+AM_CPPFLAGS="${EXTRA_CPPFLAGS}"
+AC_SUBST(AM_CPPFLAGS)
+
+AM_CFLAGS="-std=${c_dialect}11 ${EXTRA_CFLAGS} ${SHARED_CFLAGS}"
AC_SUBST(AM_CFLAGS)
-AC_SUBST(LTLDFLAGS)
+
+AM_CXXFLAGS="-std=${c_dialect}++11 ${EXTRA_CFLAGS} ${SHARED_CFLAGS} -Wmissing-declarations"
+AC_SUBST(AM_CXXFLAGS)
+
+AC_SUBST(LT_LDFLAGS)
dnl set name of html output directory for doxygen
AC_SUBST(DOXYGEN_HTMLDIR, [api-1.0])
projects / platform / upstream / libusb.git / blobdiff