# file      : build2/buildfile
# license   : MIT; see accompanying LICENSE file

# NOTE: imports should go into root.build.
#
libs = $libbutl

include ../libbuild2/
libs += ../libbuild2/lib{build2}

for m: bash bin c cc cxx in version
{
  include ../libbuild2/$m/
  libs += ../libbuild2/$m/lib{build2-$m}
}

exe{b}: {hxx ixx txx cxx}{** -b-options} {hxx ixx cxx}{b-options} $libs

# Target metadata, see also --build2-metadata in b.cxx.
#
exe{b}:
{
  export.metadata = 1 b
  b.name = [string] b
  b.version  = $version
  b.checksum = $version
  b.static = ($bin.link_member(exe) == liba)
}

# Build options.
#
# Pass our compiler target to be used as build2 host.
#
obj{b}: cxx.poptions += -DBUILD2_HOST_TRIPLET=\"$cxx.target\"

# Pass the copyright notice extracted from the LICENSE file.
#
copyright = $process.run_regex(                      \
  cat $src_root/LICENSE,                             \
  'Copyright \(c\) (.+) \(see the AUTHORS file\)\.', \
  '\1')

obj{b}: cxx.poptions += -DBUILD2_COPYRIGHT=\"$copyright\"

switch $cxx.target.class
{
  case 'linux'
  {
    # Make sure backtrace includes function names.
    #
    if ($cc.stdlib == 'glibc')
      cxx.loptions += -rdynamic

    # Make sure we use RPATH and not RUNPATH since the latter messes up
    # dlopen().
    #
    cxx.loptions += -Wl,--disable-new-dtags
  }
  case 'windows'
  {
    # Adjust stack size (affects all threads).
    #
    #                                                8M        4M
    stack_size = ($cxx.target.cpu == "x86_64" ? 8388608 : 4194304)

    cxx.loptions += ($cxx.target.system == 'win32-msvc' \
                     ? "/STACK:$stack_size"             \
                     : "-Wl,--stack,$stack_size")
  }
}

# Generated options parser.
#
if $cli.configured
{
  cli.cxx{b-options}: cli{b}

  cli.options += --std c++11 -I $src_root --include-with-brackets \
--include-prefix build2 --guard-prefix BUILD2 \
--cxx-prologue "#include <build2/types-parsers.hxx>" \
--cli-namespace build2::cl --generate-file-scanner --keep-separator \
--generate-parse --generate-merge --generate-specifier

  # Usage options.
  #
  cli.options += --suppress-undocumented --long-usage --ansi-color \
--page-usage 'build2::print_$name$_' --option-length 21

  cli.cxx{*}:
  {
    # Include the generated cli files into the distribution and don't remove
    # them when cleaning in src (so that clean results in a state identical to
    # distributed).
    #
    dist  = true
    clean = ($src_root != $out_root)

    # We keep the generated code in the repository so copy it back to src in
    # case of a forwarded configuration.
    #
    backlink = overwrite
  }
}