1dnl These m4 macros are whitespace sensitive and break if moved around much. 2m4_define([LU_VERSION_H], m4_include([libusb/version.h])) 3m4_define([LU_DEFINE_VERSION_ATOM], 4 [m4_define([$1], m4_bregexp(LU_VERSION_H, 5 [^#define\s*$1\s*\([0-9]*\).*], [\1]))]) 6m4_define([LU_DEFINE_VERSION_RC_ATOM], 7 [m4_define([$1], m4_bregexp(LU_VERSION_H, 8 [^#define\s*$1\s*"\(-rc[0-9]*\)".*], [\1]))]) 9dnl The m4_bregexp() returns (only) the numbers following the #define named 10dnl in the first macro parameter. m4_define() then defines the name for use 11dnl in AC_INIT(). 12 13LU_DEFINE_VERSION_ATOM([LIBUSB_MAJOR]) 14LU_DEFINE_VERSION_ATOM([LIBUSB_MINOR]) 15LU_DEFINE_VERSION_ATOM([LIBUSB_MICRO]) 16LU_DEFINE_VERSION_RC_ATOM([LIBUSB_RC]) 17 18AC_INIT([libusb], LIBUSB_MAJOR[.]LIBUSB_MINOR[.]LIBUSB_MICRO[]LIBUSB_RC, [libusb-devel@lists.sourceforge.net], [libusb], [http://www.libusb.org/]) 19 20# Library versioning 21# These numbers should be tweaked on every release. Read carefully: 22# http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html 23# http://sourceware.org/autobook/autobook/autobook_91.html 24lt_current="1" 25lt_revision="0" 26lt_age="1" 27LTLDFLAGS="-version-info ${lt_current}:${lt_revision}:${lt_age}" 28 29AM_INIT_AUTOMAKE 30AM_MAINTAINER_MODE 31 32AC_CONFIG_SRCDIR([libusb/core.c]) 33AC_CONFIG_MACRO_DIR([m4]) 34AM_CONFIG_HEADER([config.h]) 35m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])]) 36 37AC_PREREQ([2.50]) 38AC_PROG_CC 39AC_PROG_LIBTOOL 40LT_LANG([Windows Resource]) 41AC_C_INLINE 42AM_PROG_CC_C_O 43AC_DEFINE([_GNU_SOURCE], 1, [Use GNU extensions]) 44 45LTLDFLAGS="${LTLDFLAGS} -no-undefined" 46 47AC_MSG_CHECKING([operating system]) 48case $host in 49*-linux*) 50 AC_MSG_RESULT([Linux]) 51 backend="linux" 52 ;; 53*-darwin*) 54 AC_MSG_RESULT([Darwin/Mac OS X]) 55 backend="darwin" 56 ;; 57*-openbsd*) 58 AC_MSG_RESULT([OpenBSD]) 59 backend="openbsd" 60 ;; 61*-netbsd*) 62 AC_MSG_RESULT([NetBSD (using OpenBSD backend)]) 63 backend="openbsd" 64 ;; 65*-mingw*) 66 AC_MSG_RESULT([Windows]) 67 backend="windows" 68 ;; 69*-cygwin*) 70 AC_MSG_RESULT([Cygwin (using Windows backend)]) 71 backend="windows" 72 threads="posix" 73 ;; 74*) 75 AC_MSG_ERROR([unsupported operating system]) 76esac 77case $backend in 78linux) 79 AC_DEFINE(OS_LINUX, 1, [Linux backend]) 80 AC_SUBST(OS_LINUX) 81 AC_CHECK_LIB(rt, clock_gettime, PC_LIBS_PRIVATE="-lrt") 82 threads="posix" 83 THREAD_CFLAGS="-pthread" 84 PC_LIBS_PRIVATE="${PC_LIBS_PRIVATE} -pthread" 85 AC_CHECK_HEADERS([poll.h]) 86 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument]) 87 ;; 88darwin) 89 AC_DEFINE(OS_DARWIN, 1, [Darwin backend]) 90 AC_SUBST(OS_DARWIN) 91 threads="posix" 92 PC_LIBS_PRIVATE="-lobjc -Wl,-framework,IOKit -Wl,-framework,CoreFoundation" 93 LTLDFLAGS="${LTLDFLAGS} -Wl,-prebind" 94 AC_CHECK_HEADERS([poll.h]) 95 AC_CHECK_TYPE([nfds_t], 96 [AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])], 97 [AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument])], 98 [#include <poll.h>]) 99 ;; 100openbsd) 101 AC_DEFINE(OS_OPENBSD, 1, [OpenBSD backend]) 102 AC_SUBST(OS_OPENBSD) 103 threads="posix" 104 THREAD_CFLAGS="-pthread" 105 PC_LIBS_PRIVATE="-pthread" 106 AC_CHECK_HEADERS([poll.h]) 107 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument]) 108 ;; 109windows) 110 AC_DEFINE(OS_WINDOWS, 1, [Windows backend]) 111 AC_SUBST(OS_WINDOWS) 112 PC_LIBS_PRIVATE="" 113 LTLDFLAGS="${LTLDFLAGS} -avoid-version -Wl,--add-stdcall-alias" 114 AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument]) 115 ;; 116esac 117AC_SUBST(THREAD_CFLAGS) 118AC_SUBST(PC_LIBS_PRIVATE) 119LIBS="${LIBS} ${PC_LIBS_PRIVATE}" 120 121AM_CONDITIONAL(OS_LINUX, test "x$backend" = xlinux) 122AM_CONDITIONAL(OS_DARWIN, test "x$backend" = xdarwin) 123AM_CONDITIONAL(OS_OPENBSD, test "x$backend" = xopenbsd) 124AM_CONDITIONAL(OS_WINDOWS, test "x$backend" = xwindows) 125AM_CONDITIONAL(THREADS_POSIX, test "x$threads" = xposix) 126if test "$threads" = posix; then 127 AC_DEFINE(THREADS_POSIX, 1, [Use POSIX Threads]) 128fi 129 130# timerfd 131AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=1], [timerfd_h=0]) 132AC_ARG_ENABLE([timerfd], 133 [AS_HELP_STRING([--enable-timerfd], 134 [use timerfd for timing (default auto)])], 135 [use_timerfd=$enableval], [use_timerfd='auto']) 136 137if test "x$use_timerfd" = "xyes" -a "x$timerfd_h" = "x0"; then 138 AC_MSG_ERROR([timerfd header not available; glibc 2.9+ required]) 139fi 140 141AC_CHECK_DECL([TFD_NONBLOCK], [tfd_hdr_ok=yes], [tfd_hdr_ok=no], [#include <sys/timerfd.h>]) 142if test "x$use_timerfd" = "xyes" -a "x$tfd_hdr_ok" = "xno"; then 143 AC_MSG_ERROR([timerfd header not usable; glibc 2.9+ required]) 144fi 145 146AC_MSG_CHECKING([whether to use timerfd for timing]) 147if test "x$use_timerfd" = "xno"; then 148 AC_MSG_RESULT([no (disabled by user)]) 149else 150 if test "x$timerfd_h" = "x1" -a "x$tfd_hdr_ok" = "xyes"; then 151 AC_MSG_RESULT([yes]) 152 AC_DEFINE(USBI_TIMERFD_AVAILABLE, 1, [timerfd headers available]) 153 else 154 AC_MSG_RESULT([no (header not available)]) 155 fi 156fi 157 158AC_CHECK_TYPES(struct timespec) 159 160# Message logging 161AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])], 162 [log_enabled=$enableval], 163 [log_enabled='yes']) 164if test "x$log_enabled" != "xno"; then 165 AC_DEFINE([ENABLE_LOGGING], 1, [Message logging]) 166fi 167 168AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log], 169 [enable debug logging (default n)])], 170 [debug_log_enabled=$enableval], 171 [debug_log_enabled='no']) 172if test "x$debug_log_enabled" != "xno"; then 173 AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Debug message logging]) 174fi 175 176# Examples build 177AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build], 178 [build example applications (default n)])], 179 [build_examples=$enableval], 180 [build_examples='no']) 181AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != "xno"]) 182 183# check for -fvisibility=hidden compiler support (GCC >= 3.4) 184saved_cflags="$CFLAGS" 185# -Werror required for cygwin 186CFLAGS="$CFLAGS -Werror -fvisibility=hidden" 187AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], 188 [VISIBILITY_CFLAGS="-fvisibility=hidden" 189 AC_DEFINE([DEFAULT_VISIBILITY], [__attribute__((visibility("default")))], [Default visibility]) ], 190 [ VISIBILITY_CFLAGS="" 191 AC_DEFINE([DEFAULT_VISIBILITY], [], [Default visibility]) ], 192 ]) 193CFLAGS="$saved_cflags" 194 195# check for -Wno-pointer-sign compiler support (GCC >= 4) 196saved_cflags="$CFLAGS" 197CFLAGS="$CFLAGS -Wno-pointer-sign" 198AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], 199 nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="") 200CFLAGS="$saved_cflags" 201 202# sigaction not available on MinGW 203AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no]) 204AM_CONDITIONAL([HAVE_SIGACTION], [test "x$have_sigaction" = "xyes"]) 205 206# headers not available on all platforms but required on others 207AC_CHECK_HEADERS([sys/time.h]) 208AC_CHECK_FUNCS(gettimeofday) 209 210AM_CFLAGS="-std=gnu99 -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow" 211 212AC_SUBST(VISIBILITY_CFLAGS) 213AC_SUBST(AM_CFLAGS) 214AC_SUBST(LTLDFLAGS) 215 216AC_CONFIG_FILES([libusb-1.0.pc]) 217AC_CONFIG_FILES([Makefile]) 218AC_CONFIG_FILES([libusb/Makefile]) 219AC_CONFIG_FILES([examples/Makefile]) 220AC_CONFIG_FILES([doc/Makefile]) 221AC_CONFIG_FILES([doc/doxygen.cfg]) 222AC_OUTPUT 223