configure.in

   1 dnl Process this file with autoconf to produce a configure script.
   2 AC_INIT(elf2flt.c)
   3
   4 AC_ARG_WITH(zlib-prefix,
   5         [ --with-zlib-prefix=<dir>  path to installed zlib ],
   6         [ ac_zlib_prefix=$withval ],
   7         [ ac_zlib_prefix=NONE ]
   8 )
   9
  10 AC_ARG_WITH(libbfd,
  11         [ --with-libbfd=<file>  path to libbfd.a library to use ],
  12         [ ac_libbfd=$withval ],
  13         [ ac_libbfd=NONE ]
  14 )
  15
  16 AC_ARG_WITH(libiberty,
  17         [ --with-libiberty=<file>  path to libiberty.a library to use ],
  18         [ ac_libiberty=$withval ],
  19         [ ac_libiberty=NONE ]
  20 )
  21
  22 AC_ARG_WITH(bfd-include-dir,
  23         [ --with-bfd-include-dir=<dir>  include path for correct bfd.h ],
  24         [ ac_bfd_include_dir=$withval ],
  25         [ ac_bfd_include_dir=NONE ]
  26 )
  27
  28 AC_ARG_WITH(binutils-include-dir,
  29         [ --with-binutils-include-dir=<dir>  include path for binutils headers ],
  30         [ ac_binutils_include_dir=$withval ],
  31         [ ac_binutils_include_dir=NONE ]
  32 )
  33
  34 AC_ARG_WITH(binutils-ldscript-dir,
  35         [ --with-binutils-ldscript-dir=<dir>  path to install elf2flt.ld ],
  36         [ ac_binutils_ldscript_dir=$withval ],
  37         [ ac_binutils_ldscript_dir=NONE ]
  38 )
  39
  40 AC_ARG_WITH(binutils-build-dir,
  41         [ --with-binutils-build-dir=<dir>  path to compiled binutils tree ],
  42         [ ac_binutils_build_dir=$withval ],
  43         [ ac_binutils_build_dir=NONE ]
  44 )
  45
  46 AC_ARG_ENABLE(got-check,
  47         [ --disable-got-check - disable check for GOT (needed on H8) ],
  48         [ got_check=$enableval ],
  49         [ got_check=yes ]
  50 )
  51
  52 AC_ARG_ENABLE(emit_relocs,
  53         [ --disable-emit-relocs - don't use the --emit-relocs (-q) linker option ],
  54         [ emit_relocs=$enableval ],
  55         [ emit_relocs=yes ]
  56 )
  57
  58 AC_CANONICAL_HOST
  59 AC_CANONICAL_TARGET
  60
  61 dnl Checks for programs.
  62 AC_PROG_CC
  63 AC_PROG_INSTALL
  64
  65 if test "$ac_binutils_build_dir" != "NONE"; then
  66   test "$ac_libbfd"               = "NONE" && ac_libbfd="$ac_binutils_build_dir/bfd/libbfd.a"
  67   test "$ac_libiberty"            = "NONE" && ac_libiberty="$ac_binutils_build_dir/libiberty/libiberty.a"
  68   test "$ac_bfd_include_dir"      = "NONE" && ac_bfd_include_dir="$ac_binutils_build_dir/bfd"
  69   test "$ac_binutils_include_dir" = "NONE" && ac_binutils_include_dir="$ac_binutils_build_dir/include"
  70 fi
  71
  72 dnl Checks for libraries.
  73 if test "$ac_libiberty" = "NONE"; then
  74   AC_CHECK_LIB(iberty, objalloc_create)
  75   ac_libiberty=auto
  76 else
  77   LIBS="$ac_libiberty $LIBS"
  78 fi
  79 if test "$ac_libbfd" = "NONE"; then
  80   AC_CHECK_LIB(bfd, bfd_openr)
  81   ac_libbfd=auto
  82 else
  83   LIBS="$ac_libbfd $LIBS"
  84 fi
  85 if test "$ac_zlib_prefix" = "NONE"; then
  86   AC_CHECK_LIB(z, deflate)
  87 else
  88   LIBS="-L$ac_zlib_prefix/lib -lz $LIBS"
  89 fi
  90
  91 bfd_include_dir=
  92 if test "$ac_bfd_include_dir" != "NONE"; then
  93   bfd_include_dir="-I$ac_bfd_include_dir"
  94 fi
  95
  96 binutils_include_dir=
  97 if test "$ac_binutils_include_dir" != "NONE"; then
  98   binutils_include_dir="-I$ac_binutils_include_dir"
  99 fi
 100
 101 zlib_include_dir=
 102 if test "$ac_zlib_prefix" != "NONE"; then
 103   zlib_include_dir="-I$ac_zlib_prefix/include"
 104 fi
 105
 106 binutils_ldscript_dir=
 107 if test "$ac_binutils_ldscript_dir" = "NONE"; then
 108   ac_binutils_ldscript_dir="\${TOOLDIR}/../${target_alias}/lib"
 109 fi
 110 binutils_ldscript_dir="$ac_binutils_ldscript_dir"
 111
 112 if test "$ac_libbfd" = "NONE" -o "$ac_libiberty" = "NONE" ; then
 113         AC_MSG_ERROR([
 114
 115 You need to specify the location of the libfd.a and libiberty.a
 116 host libraries from the binutils package.
 117
 118 Run configure again specifying these options:
 119
 120   ./configure --target=<ARCH> --with-bfd-include-dir=<dir> --with-libbfd=<libbfd.a> --with-libiberty=<libiberty.a>
 121 ])
 122 fi
 123
 124 if test "$ac_bfd_include_dir" = "NONE" ; then
 125         AC_MSG_ERROR([
 126
 127 You need to specify the location of the bfd.h header from a
 128 configured/compiled version of the binutils package for your target.
 129 Without this your elf2flt may crash as it will try to use the
 130 systems bfd.h which may be from a different binutils package.
 131
 132 Run configure again specifying these options:
 133
 134   ./configure --target=<ARCH> --with-bfd-include-dir=<dir> --with-libbfd=<libbfd.a> --with-libiberty=<libiberty.a>
 135 ])
 136 fi
 137
 138 dnl Make sure we resolve system symbols before libiberty/libbfd ones.
 139 dnl Otherwise, things like getopt get screwed up because the system headers
 140 dnl redirect some functions to the system symbols, but other local symbols
 141 dnl come from libiberty/libbfd.
 142 dnl int getopt(int, char * const [], const char *) __asm("_" "getopt" "$UNIX2003");
 143 AC_CHECK_LIB(c, malloc, LIBS="-lc $LIBS")
 144
 145 dnl Checks for header files.
 146 AC_HEADER_STDC
 147 AC_CHECK_HEADERS(fcntl.h unistd.h bfd.h)
 148
 149 dnl Checks for typedefs, structures, and compiler characteristics.
 150 AC_C_CONST
 151
 152 dnl Checks for library functions.
 153 AC_FUNC_VPRINTF
 154
 155 AC_CHECK_FUNCS(dcgettext libintl_dgettext)
 156
 157 dnl Subsitute values
 158 AC_SUBST(target)
 159 AC_SUBST(target_alias)
 160 AC_SUBST(target_cpu)
 161 AC_SUBST(target_os)
 162 AC_SUBST(target_vendor)
 163 AC_SUBST(bfd_include_dir)
 164 AC_SUBST(binutils_include_dir)
 165 AC_SUBST(zlib_include_dir)
 166 AC_SUBST(binutils_ldscript_dir)
 167 AC_SUBST(got_check)
 168 AC_SUBST(emit_relocs)
 169
 170 AC_OUTPUT(Makefile ld-elf2flt)
 171