configure.in

   1 dnl Process this file with autoconf to produce a configure script. -*-m4-*-
   2 AC_INIT(src/prelink.c)
   3 AM_CONFIG_HEADER(config.h)
   4 AC_PREREQ(2.13)                 dnl Minimum Autoconf version required.
   5 AC_CANONICAL_HOST
   6
   7 AM_INIT_AUTOMAKE([prelink], [0.0])
   8
   9 ALL_LINGUAS=
  10
  11 AC_PROG_CC
  12 AC_PROG_CXX
  13 AC_PROG_CPP
  14 AC_PROG_GCC_TRADITIONAL
  15 AM_PROG_LIBTOOL
  16
  17 AC_ARG_ENABLE(64-bit,
  18 [  --disable-64-bit        only support 32-bit ELF],
  19 [case "${enableval}" in
  20   yes)  want64=true  ;;
  21   no)   want64=false ;;
  22   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit option) ;;
  23 esac],[want64=true])dnl
  24
  25 AC_CHECK_HEADER(libelf.h,,[
  26   if test -f /usr/include/elfutils/libelf.h; then
  27     CPPFLAGS="$CPPFLAGS -I /usr/include/elfutils"
  28   elif test -f /usr/local/include/elfutils/libelf.h; then
  29     CPPFLAGS="$CPPFLAGS -I /usr/local/include/elfutils"
  30   elif test -f /usr/include/libelf/libelf.h; then
  31     CPPFLAGS="$CPPFLAGS -I /usr/include/libelf"
  32   elif test -f /usr/local/include/libelf/libelf.h; then
  33     CPPFLAGS="$CPPFLAGS -I /usr/local/include/libelf"
  34   else
  35     AC_MSG_ERROR(libelf.h not found)
  36   fi])
  37 LIBGELF=""
  38 if test "$want64"x = falsex; then
  39   GELFINCLUDE='-I$(top_srcdir)/gelfx32'
  40 else
  41   GELFINCLUDE='-I$(top_srcdir)/gelfx'
  42   AC_CHECK_HEADER(gelf.h,,[
  43     GELFINCLUDE="$GELFINCLUDE "'-I$(top_srcdir)/gelf'
  44     LIBGELF='../gelf/libgelf.la'
  45   ])
  46 fi
  47 AC_CHECK_LIB(elf,elf_begin)
  48 AC_SUBST(GELFINCLUDE)
  49 AC_SUBST(LIBGELF)
  50
  51 dnl Now check what kind of libelf we will link against
  52 AC_CHECK_FUNC(gelf_getvernaux,[newbu=true],[newbu=false])
  53
  54 dnl Check if FTW_ACTIONRETVAL is supported
  55 AC_CACHE_CHECK([whether FTW_ACTIONRETVAL is supported],
  56                [ac_cv_ftw_actionretval], [dnl
  57   AC_EGREP_CPP([FTW supports ACTIONRETVAL], [
  58   #ifndef _GNU_SOURCE
  59   #define _GNU_SOURCE 1
  60   #endif
  61   #include <ftw.h>
  62   #ifdef FTW_ACTIONRETVAL
  63   FTW supports ACTIONRETVAL
  64   #endif
  65   ], ac_cv_ftw_actionretval=yes, ac_cv_ftw_actionretval=no)])
  66 if test "x$ac_cv_ftw_actionretval" = xyes; then
  67   AC_DEFINE(HAVE_FTW_ACTIONRETVAL, 1,
  68             [Define if FTW_ACTIONRETVAL is supported.])
  69 fi
  70
  71 dnl SELinux checks
  72 AC_CHECK_LIB(selinux,is_selinux_enabled)
  73 AC_CHECK_HEADERS(selinux/selinux.h)
  74
  75 dnl This test must come as early as possible after the compiler configuration
  76 dnl tests, because the choice of the file model can (in principle) affect
  77 dnl whether functions and headers are available, whether they work, etc.
  78 if test x"$newbu" = xtrue; then
  79   # Don't use LFS for libelf-0.x
  80   AC_SYS_LARGEFILE
  81 fi
  82
  83 AC_LIBELF_SXWORD
  84
  85 AC_OUTPUT([Makefile
  86            src/Makefile
  87            gelfx/Makefile
  88            gelfx32/Makefile
  89            gelf/Makefile
  90            m4/Makefile
  91            patches/Makefile
  92            doc/Makefile
  93            testsuite/Makefile])