configure.ac

   1 # -*- Autoconf -*-
   2 # This file is part of ltrace.
   3 # Copyright (C) 2010,2012 Petr Machata, Red Hat Inc.
   4 # Copyright (C) 2010,2011 Joe Damato
   5 # Copyright (C) 2010 Marc Kleine-Budde
   6 # Copyright (C) 2010 Zachary T Welch
   7 #
   8 # This program is free software; you can redistribute it and/or
   9 # modify it under the terms of the GNU General Public License as
  10 # published by the Free Software Foundation; either version 2 of the
  11 # License, or (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful, but
  14 # WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 # General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  21 # 02110-1301 USA
  22
  23 # Process this file with autoconf to produce a configure script.
  24 AC_PREREQ(2.65)
  25
  26 AC_INIT([ltrace],[0.7.2],[ltrace-devel@lists.alioth.debian.org])
  27 AC_CONFIG_HEADERS([config.h])
  28 AC_CONFIG_SRCDIR(libltrace.c)
  29 AC_CONFIG_MACRO_DIR([config/m4])
  30 AC_CONFIG_AUX_DIR([config/autoconf])
  31 AC_CANONICAL_BUILD
  32 AC_CANONICAL_HOST
  33
  34 case "${host_os}" in
  35     linux-gnu*) HOST_OS="linux-gnu" ;;
  36     *)          AC_MSG_ERROR([unkown host-os ${host_os}]) ;;
  37 esac
  38 AC_SUBST(HOST_OS)
  39
  40 case "${host_cpu}" in
  41     arm*|sa110)         HOST_CPU="arm" ;;
  42     cris*)              HOST_CPU="cris" ;;
  43     mips*el)            HOST_CPU="mipsel" ;;
  44     mips*)              HOST_CPU="mips" ;;
  45     powerpc|powerpc64)  HOST_CPU="ppc" ;;
  46     sun4u|sparc64)      HOST_CPU="sparc" ;;
  47     s390x)              HOST_CPU="s390" ;;
  48     i?86|x86_64)        HOST_CPU="x86" ;;
  49     *)                  HOST_CPU="${host_cpu}" ;;
  50 esac
  51 AC_SUBST(HOST_CPU)
  52
  53 # Checks for programs.
  54 AC_PROG_CC
  55 LT_INIT
  56 # libtool-2:  LT_INIT()
  57 AM_INIT_AUTOMAKE([foreign no-exeext dist-bzip2])
  58 AM_MAINTAINER_MODE
  59
  60 AC_ARG_WITH([libelf],
  61   AS_HELP_STRING([--with-libelf], [Prefix of libelf headers/library]),
  62   [case "${withval}" in
  63   (no)
  64     AC_MSG_ERROR([*** libelf is a required dependency])
  65     ;;
  66   (yes)
  67     AC_MSG_ERROR([*** --with-libelf requires you to specify a path])
  68     ;;
  69   (*)
  70     AM_CPPFLAGS="${AM_CPPFLAGS} -I${withval}/include"
  71     AM_LDFLAGS="${AM_LDFLAGS} -L${withval}/lib"
  72     libelf_LD_LIBRARY_PATH="${withval}/lib"
  73     ;;
  74 esac],[])
  75
  76 # Checks for libraries.
  77
  78 saved_CPPFLAGS="${CPPFLAGS}"
  79 saved_LDFLAGS="${LDFLAGS}"
  80 CPPFLAGS="${CPPFLAGS} ${AM_CPPFLAGS}"
  81 LDFLAGS="${LDFLAGS} ${AM_LDFLAGS}"
  82 # libelf
  83 AC_CHECK_HEADERS([elf.h gelf.h],,
  84         [AC_MSG_ERROR([*** libelf.h or gelf.h not found on your system])]
  85 )
  86 AC_CHECK_LIB([elf], [elf_begin],,
  87         [AC_MSG_ERROR([*** libelf not found on your system])]
  88 )
  89 CPPFLAGS="${saved_CPPFLAGS}"
  90 LDFLAGS="${saved_LDFLAGS}"
  91
  92
  93 # HAVE_LIBIBERTY
  94 AC_CHECK_LIB([iberty], [cplus_demangle], [
  95         AC_DEFINE([HAVE_LIBIBERTY], [1], [we have libiberty])
  96         liberty_LIBS="-liberty"], [
  97         liberty_LIBS=""])
  98 AC_SUBST(liberty_LIBS)
  99
 100
 101 # HAVE_LIBSUPC__
 102 AC_CHECK_LIB([supc++], [__cxa_demangle], [
 103         AC_DEFINE([HAVE_LIBSUPC__], [1], [we have libsupc++])
 104         libsupcxx_LIBS="-lsupc++"], [
 105         libsupcxx_LIBS=""])
 106 AC_SUBST(libsupcxx_LIBS)
 107
 108
 109 # HAVE_LIBSTDC__
 110 AC_CHECK_LIB([stdc++], [__cxa_demangle], [
 111         AC_DEFINE([HAVE_LIBSTDC__], [1], [we have libstdc++])
 112         libstdcxx_LIBS="-lstdc++"], [
 113         libstdcxx_LIBS=""])
 114 AC_SUBST(libstdcxx_LIBS)
 115
 116
 117 dnl Check security_get_boolean_active availability.
 118 AC_CHECK_HEADERS(selinux/selinux.h)
 119 AC_CHECK_LIB(selinux, security_get_boolean_active)
 120
 121
 122 # HAVE_LIBUNWIND
 123 AC_ARG_WITH(libunwind,
 124   AS_HELP_STRING([--with-libunwind], [Use libunwind frame unwinding support]),
 125   [case "${withval}" in
 126   (yes|no) enable_libunwind=$withval;;
 127   (*) enable_libunwind=yes
 128     AM_CPPFLAGS="${AM_CPPFLAGS} -I${withval}/include"
 129     AM_LDFLAGS="${AM_LDFLAGS} -L${withval}/lib"
 130     libunwind_LD_LIBRARY_PATH="${withval}/lib"
 131     ;;
 132 esac],[enable_libunwind=maybe])
 133
 134 saved_CPPFLAGS="${CPPFLAGS}"
 135 CPPFLAGS="${CPPFLAGS} ${AM_CPPFLAGS}"
 136 AC_CHECK_HEADERS([libunwind.h], [have_libunwind_h=yes])
 137 AC_CHECK_HEADERS([libunwind-ptrace.h], [have_libunwind_ptrace_h=yes])
 138 CPPFLAGS="${saved_CPPFLAGS}"
 139
 140 AC_MSG_CHECKING([whether to use libunwind support])
 141 case "${enable_libunwind}" in
 142 (yes|maybe)
 143   if test x$have_libunwind_h = xyes -o x$have_libunwind_ptrace_h = xyes; then
 144     enable_libunwind=yes
 145   elif test $enable_libunwind = maybe; then
 146     enable_libunwind=no
 147   else
 148     AC_MSG_RESULT([$enable_libunwind])
 149     AC_MSG_ERROR([libunwind.h or libunwind-ptrace.h cannot be found])
 150   fi
 151   ;;
 152 (*) ;;
 153 esac
 154 AC_MSG_RESULT([$enable_libunwind])
 155
 156 if test x"$enable_libunwind" = xyes; then
 157   case "${host_cpu}" in
 158       arm*|sa110)         UNWIND_ARCH="arm" ;;
 159       i?86)               UNWIND_ARCH="x86" ;;
 160       powerpc)            UNWIND_ARCH="ppc32" ;;
 161       powerpc64)          UNWIND_ARCH="ppc64" ;;
 162       mips*)              UNWIND_ARCH="mips" ;;
 163       *)                  UNWIND_ARCH="${host_cpu}" ;;
 164   esac
 165
 166   saved_LDFLAGS="${LDFLAGS}"
 167   LDFLAGS="${LDFLAGS} ${AM_LDFLAGS}"
 168   AC_CHECK_LIB([unwind], [backtrace], [libunwind_LIBS=-lunwind],
 169                [AC_MSG_ERROR([Couldn't find or use libunwind.])])
 170
 171   AC_CHECK_LIB([unwind-${UNWIND_ARCH}], [_U${UNWIND_ARCH}_init_remote],
 172                [libunwind_LIBS="-lunwind-${UNWIND_ARCH} $libunwind_LIBS"],
 173                [AC_MSG_ERROR([Couldn't find or use libunwind-${UNWIND_ARCH}.])],
 174                [$libunwind_LIBS])
 175
 176   AC_CHECK_LIB([unwind-ptrace], [_UPT_create],
 177                [libunwind_LIBS="-lunwind-ptrace $libunwind_LIBS"],
 178                [AC_MSG_ERROR([Couldn't find or use libunwind-ptrace.])],
 179                [$libunwind_LIBS])
 180
 181   AC_SUBST(libunwind_LIBS)
 182   AC_DEFINE([HAVE_LIBUNWIND], [1], [we have libunwind])
 183   LDFLAGS="${saved_LDFLAGS}"
 184 fi
 185
 186
 187 saved_CPPFLAGS="${CPPFLAGS}"
 188 saved_LDFLAGS="${LDFLAGS}"
 189 CPPFLAGS="${CPPFLAGS} ${AM_CPPFLAGS}"
 190 LDFLAGS="${LDFLAGS} ${AM_LDFLAGS}"
 191 # HAVE_ELF_C_READ_MMAP
 192 AC_MSG_CHECKING([whether elf_begin accepts ELF_C_READ_MMAP])
 193 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <gelf.h>]], [[
 194 int main () {
 195         Elf *elf = elf_begin(4, ELF_C_READ_MMAP, 0);
 196         return 0;
 197 }
 198         ]])],[
 199         AC_DEFINE([HAVE_ELF_C_READ_MMAP], [1], [we have read mmap support])
 200         AC_MSG_RESULT([yes])],[
 201         AC_MSG_RESULT([no])])
 202
 203 saved_CFLAGS="${CFLAGS}"
 204 CFLAGS="${CFLAGS} -Wall -Werror"
 205 AC_MSG_CHECKING([whether elf_hash takes a char* argument])
 206 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <libelf.h>]], [[
 207         (void) elf_hash("name");
 208         ]])],
 209         [AC_DEFINE([ELF_HASH_TAKES_CHARP], [1],
 210                 [elf_hash() takes char* (as opposed to unsigned char *)])
 211          AC_MSG_RESULT([yes])],
 212         [AC_MSG_RESULT([no])])
 213 CFLAGS="${saved_CFLAGS}"
 214 CPPFLAGS="${saved_CPPFLAGS}"
 215 LDFLAGS="${saved_LDFLAGS}"
 216
 217 AM_CPPFLAGS=" \
 218         ${AM_CPPFLAGS} \
 219         -I\$(top_srcdir)/sysdeps/${HOST_OS}/${HOST_CPU} \
 220         -I\$(top_srcdir)/sysdeps/${HOST_OS} \
 221         -I\$(top_srcdir)/sysdeps \
 222         -I\$(top_srcdir) \
 223 "
 224
 225 # Checks for header files.
 226 AC_CHECK_HEADERS([ \
 227         fcntl.h \
 228         limits.h \
 229         stddef.h \
 230         stdint.h \
 231         stdlib.h \
 232         string.h \
 233         sys/ioctl.h \
 234         sys/param.h \
 235         sys/time.h \
 236         unistd.h \
 237 ])
 238
 239 # Checks for typedefs, structures, and compiler characteristics.
 240 AC_TYPE_UID_T
 241 AC_C_INLINE
 242 AC_TYPE_PID_T
 243 AC_TYPE_SIZE_T
 244 AC_CHECK_SIZEOF([long])
 245
 246
 247 # Checks for library functions.
 248 AC_FUNC_ERROR_AT_LINE
 249 AC_FUNC_FORK
 250 AC_CHECK_FUNCS([ \
 251         alarm \
 252         atexit \
 253         getcwd \
 254         gettimeofday \
 255         memset \
 256         mkdir \
 257         rmdir \
 258         strchr \
 259         strdup \
 260         strerror \
 261         strtol \
 262         strtoul \
 263 ])
 264
 265
 266 #
 267 # Debugging
 268 #
 269 AC_MSG_CHECKING([whether to enable debugging])
 270 AC_ARG_ENABLE(debug,
 271     AS_HELP_STRING([--enable-debug], [enable debugging @<:@default=no@:>@]),
 272         [case "$enableval" in
 273         y | yes) CONFIG_DEBUG=yes ;;
 274         *) CONFIG_DEBUG=no ;;
 275     esac],
 276     [CONFIG_DEBUG=no])
 277 AC_MSG_RESULT([${CONFIG_DEBUG}])
 278 if test "${CONFIG_DEBUG}" = "yes"; then
 279     AC_DEFINE(DEBUG, 1, [debugging])
 280 fi
 281
 282 # Ignore the compiler's warnings at your own risk.
 283 AM_CFLAGS="${AM_CFLAGS} -Wall -Wsign-compare -Wfloat-equal -Wformat-security"
 284 AC_ARG_ENABLE([werror],
 285     AS_HELP_STRING([--disable-werror], [disable use of -Werror]),
 286     [enable_werror=$enableval], [enable_werror=yes])
 287 if test x$enable_werror = xyes; then
 288     AM_CFLAGS="${AM_CFLAGS} -Werror"
 289 fi
 290
 291 AC_ARG_ENABLE([valgrind],
 292     AS_HELP_STRING([--enable-valgrind],[run all tests under valgrind]),
 293     [use_valgrind=$enableval], [use_valgrind=no])
 294 if test x$use_valgrind = xyes; then
 295     AC_CHECK_PROG(HAVE_VALGRIND, valgrind, yes, no)
 296     if test x$HAVE_VALGRIND = xno; then
 297         AC_MSG_ERROR([valgrind not found])
 298     fi
 299 fi
 300 AM_CONDITIONAL(USE_VALGRIND, test "$use_valgrind" = yes)
 301
 302 AC_SUBST(AM_CPPFLAGS)
 303 AC_SUBST(AM_CFLAGS)
 304 AC_SUBST(AM_LDFLAGS)
 305 AC_SUBST(libelf_LD_LIBRARY_PATH)
 306 AC_SUBST(libunwind_LD_LIBRARY_PATH)
 307
 308 AC_CONFIG_FILES([
 309         Makefile
 310         sysdeps/Makefile
 311         sysdeps/linux-gnu/Makefile
 312         sysdeps/linux-gnu/alpha/Makefile
 313         sysdeps/linux-gnu/arm/Makefile
 314         sysdeps/linux-gnu/cris/Makefile
 315         sysdeps/linux-gnu/ia64/Makefile
 316         sysdeps/linux-gnu/m68k/Makefile
 317         sysdeps/linux-gnu/mipsel/Makefile
 318         sysdeps/linux-gnu/ppc/Makefile
 319         sysdeps/linux-gnu/s390/Makefile
 320         sysdeps/linux-gnu/sparc/Makefile
 321         sysdeps/linux-gnu/x86/Makefile
 322         testsuite/Makefile
 323         testsuite/ltrace.main/Makefile
 324         testsuite/ltrace.minor/Makefile
 325         testsuite/ltrace.torture/Makefile
 326 ])
 327 AC_OUTPUT