1 AC_INIT([libusb], [1.0.8]) 2 AM_INIT_AUTOMAKE 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])]) 7 8 AC_PREREQ([2.50]) 9 AC_PROG_CC 10 AC_PROG_LIBTOOL 11 AC_C_INLINE 12 AM_PROG_CC_C_O 13 AC_DEFINE([_GNU_SOURCE], [], [Use GNU extensions]) 14 15 AC_MSG_CHECKING([operating system]) 16 case $host in 17 *-linux*) 18 AC_DEFINE(OS_LINUX, [], [Linux backend]) 19 AC_SUBST(OS_LINUX) 20 AC_MSG_RESULT([Linux]) 21 backend="linux" 22 AC_CHECK_LIB(rt, clock_gettime) 23 AM_LDFLAGS="" 24 ;; 25 *-darwin*) 26 AC_DEFINE(OS_DARWIN, [], [Darwin backend]) 27 AC_SUBST(OS_DARWIN) 28 AC_DEFINE(USBI_OS_HANDLES_TIMEOUT, [], [Backend handles timeout]) 29 AC_MSG_RESULT([Darwin/MacOS X]) 30 backend="darwin" 31 AM_LDFLAGS="-Wl,-framework -Wl,IOKit -Wl,-framework -Wl,CoreFoundation -Wl,-prebind -no-undefined" 32 ;; 33 *) 34 AC_MSG_ERROR([unsupported operating system]) 35 esac 36 37 AM_CONDITIONAL([OS_LINUX], [test "x$backend" == "xlinux"]) 38 AM_CONDITIONAL([OS_DARWIN], [test "x$backend" == "xdarwin"]) 39 40 # Library versioning 41 lt_major="0" 42 lt_revision="0" 43 lt_age="0" 44 AC_SUBST(lt_major) 45 AC_SUBST(lt_revision) 46 AC_SUBST(lt_age) 47 48 # timerfd 49 AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=1], [timerfd_h=0]) 50 AC_ARG_ENABLE([timerfd], 51 [AS_HELP_STRING([--enable-timerfd], 52 [use timerfd for timing (default auto)])], 53 [use_timerfd=$enableval], [use_timerfd='auto']) 54 55 if test "x$use_timerfd" = "xyes" -a "x$timerfd_h" = "x0"; then 56 AC_MSG_ERROR([timerfd header not available; glibc 2.9+ required]) 57 fi 58 59 AC_CHECK_DECL([TFD_NONBLOCK], [tfd_hdr_ok=yes], [tfd_hdr_ok=no], [#include <sys/timerfd.h>]) 60 if test "x$use_timerfd" = "xyes" -a "x$tfd_hdr_ok" = "xno"; then 61 AC_MSG_ERROR([timerfd header not usable; glibc 2.9+ required]) 62 fi 63 64 AC_MSG_CHECKING([whether to use timerfd for timing]) 65 if test "x$use_timerfd" = "xno"; then 66 AC_MSG_RESULT([no (disabled by user)]) 67 else 68 if test "x$timerfd_h" = "x1" -a "x$tfd_hdr_ok" = "xyes"; then 69 AC_MSG_RESULT([yes]) 70 AC_DEFINE(USBI_TIMERFD_AVAILABLE, [], [timerfd headers available]) 71 else 72 AC_MSG_RESULT([no (header not available)]) 73 fi 74 fi 75 76 # Message logging 77 AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])], 78 [log_enabled=$enableval], 79 [log_enabled='yes']) 80 if test "x$log_enabled" != "xno"; then 81 AC_DEFINE([ENABLE_LOGGING], 1, [Message logging]) 82 fi 83 84 AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log], 85 [enable debug logging (default n)])], 86 [debug_log_enabled=$enableval], 87 [debug_log_enabled='no']) 88 if test "x$debug_log_enabled" != "xno"; then 89 AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Debug message logging]) 90 fi 91 92 # Examples build 93 AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build], 94 [build example applications (default n)])], 95 [build_examples=$enableval], 96 [build_examples='no']) 97 AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != "xno"]) 98 99 # Restore gnu89 inline semantics on gcc 4.3 and newer 100 saved_cflags="$CFLAGS" 101 CFLAGS="$CFLAGS -fgnu89-inline" 102 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), inline_cflags="-fgnu89-inline", inline_cflags="") 103 CFLAGS="$saved_cflags" 104 105 # check for -fvisibility=hidden compiler support (GCC >= 3.4) 106 saved_cflags="$CFLAGS" 107 CFLAGS="$CFLAGS -fvisibility=hidden" 108 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), 109 [VISIBILITY_CFLAGS="-fvisibility=hidden" 110 AC_DEFINE([API_EXPORTED], [__attribute__((visibility("default")))], [Default visibility]) ], 111 [ VISIBILITY_CFLAGS="" 112 AC_DEFINE([API_EXPORTED], [], [Default visibility]) ], 113 ]) 114 CFLAGS="$saved_cflags" 115 116 # check for -Wno-pointer-sign compiler support (GCC >= 4) 117 saved_cflags="$CFLAGS" 118 CFLAGS="$CFLAGS -Wno-pointer-sign" 119 AC_COMPILE_IFELSE(AC_LANG_PROGRAM([]), 120 nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="") 121 CFLAGS="$saved_cflags" 122 123 AM_CFLAGS="-std=gnu99 $inline_cflags -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow" 124 125 AC_SUBST(VISIBILITY_CFLAGS) 126 AC_SUBST(AM_CFLAGS) 127 AC_SUBST(AM_LDFLAGS) 128 129 AC_CONFIG_FILES([libusb-1.0.pc] [Makefile] [libusb/Makefile] [examples/Makefile] [doc/Makefile] [doc/doxygen.cfg]) 130 AC_OUTPUT 131 132
