#                                               -*- Autoconf -*-

# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.61])

AC_INIT([libsass], m4_esyscmd_s([./version.sh]), [support@moovweb.com])

AC_CONFIG_SRCDIR([src/ast.hpp])

AC_CONFIG_MACRO_DIR([m4])

AC_CONFIG_HEADERS([src/config.h])

AC_CONFIG_FILES([include/sass/version.h])

AC_CONFIG_AUX_DIR([script])

# These are flags passed to automake

# Though they look like gcc flags!

AM_INIT_AUTOMAKE([foreign parallel-tests -Wall])

m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([no])])

# Checks for programs.

AC_PROG_CC

AC_PROG_CXX

AC_LANG_PUSH([C])

AC_LANG_PUSH([C++])

AC_GNU_SOURCE

# Check fails on Travis, but it works fine

# AX_CXX_COMPILE_STDCXX_11([ext],[optional])

AC_CHECK_TOOL([AR], [ar], [false])

AC_CHECK_TOOL([DLLTOOL], [dlltool], [false])

AC_CHECK_TOOL([DLLWRAP], [dllwrap], [false])

AC_CHECK_TOOL([WINDRES], [windres], [false])

m4_ifdef([AM_PROG_AR], [AM_PROG_AR])

LT_INIT([dlopen])

# Checks for header files.

AC_CHECK_HEADERS([unistd.h])

# Checks for typedefs, structures, and compiler characteristics.

AC_TYPE_SIZE_T

# Checks for library functions.

AC_FUNC_MALLOC

AC_CHECK_FUNCS([floor getcwd strtol])

# Checks for testing.

AC_ARG_ENABLE(tests, AS_HELP_STRING([--enable-tests], [enable testing the build]),

              [enable_tests="$enableval"], [enable_tests=no])

AS_CASE([$host], [*-*-mingw*], [is_mingw32=yes], [is_mingw32=no])

AM_CONDITIONAL(COMPILER_IS_MINGW32, test "x$is_mingw32" = "xyes")

dnl The dlopen() function is in the C library for *BSD and in

dnl libdl on GLIBC-based systems

if test "x$is_mingw32" != "xyes"; then

  AC_SEARCH_LIBS([dlopen], [dl dld], [], [

    AC_MSG_ERROR([unable to find the dlopen() function])

  ])

fi

if test "x$enable_tests" = "xyes"; then

  AC_PROG_CC

  AC_PROG_AWK

  # test need minitest gem

  AC_PATH_PROG(RUBY, [ruby])

  AC_PATH_PROG(TAPOUT, [tapout])

  AC_REQUIRE_AUX_FILE([tap-driver])

  AC_REQUIRE_AUX_FILE([tap-runner])

  AC_ARG_WITH(sassc-dir,

              AS_HELP_STRING([--with-sassc-dir=<dir>], [specify directory of sassc sources for testing (default: sassc)]),

              [sassc_dir="$withval"], [sassc_dir="sassc"])

  AC_CHECK_FILE([$sassc_dir/sassc.c], [], [

    AC_MSG_ERROR([Unable to find sassc directory.

You must clone the sassc repository in this directory or specify

the --with-sassc-dir=<dir> argument.

])

  ])

  SASS_SASSC_PATH=$sassc_dir

  AC_SUBST(SASS_SASSC_PATH)

  AC_ARG_WITH(sass-spec-dir,

              AS_HELP_STRING([--with-sass-spec-dir=<dir>], [specify directory of sass-spec for testing (default: sass-spec)]),

              [sass_spec_dir="$withval"], [sass_spec_dir="sass-spec"])

  AC_CHECK_FILE([$sass_spec_dir/sass-spec.rb], [], [

    AC_MSG_ERROR([Unable to find sass-spec directory.

You must clone the sass-spec repository in this directory or specify

the --with-sass-spec-dir=<dir> argument.

])

  ])

  # Automake doesn't like its tests in an absolute path, so we make it relative.

  case $sass_spec_dir in

    /*)

      SASS_SPEC_PATH=`$RUBY -e "require 'pathname'; puts Pathname.new('$sass_spec_dir').relative_path_from(Pathname.new('$PWD')).to_s"`

      ;;

    *)

      SASS_SPEC_PATH="$sass_spec_dir"

      ;;

  esac

  AC_SUBST(SASS_SPEC_PATH)

  # TODO: Remove this when automake requirements are 1.12+

  AC_MSG_CHECKING([whether we can use TAP mode])

  tmp=`$AWK '/TEST_LOG_DRIVER/' $srcdir/GNUmakefile.in`

  if test "x$tmp" != "x"; then

    use_tap=yes

  else

    use_tap=no

  fi

  AC_MSG_RESULT([$use_tap])

fi

AM_CONDITIONAL(ENABLE_TESTS, test "x$enable_tests" = "xyes")

AM_CONDITIONAL(USE_TAP, test "x$use_tap" = "xyes")

AC_ARG_ENABLE([coverage],

  [AS_HELP_STRING([--enable-coverage],

    [enable coverage report for test suite])],

    [enable_cov=$enableval],

    [enable_cov=no])

if test "x$enable_cov" = "xyes"; then

    AC_CHECK_PROG(GCOV, gcov, gcov)

    # Remove all optimization flags from C[XX]FLAGS

    changequote({,})

    CFLAGS=`echo "$CFLAGS -O1 -fno-omit-frame-pointer" | $SED -e 's/-O[0-9]*//g'`

    CXXFLAGS=`echo "$CXXFLAGS -O1 -fno-omit-frame-pointer" | $SED -e 's/-O[0-9]*//g'`

    changequote([,])

    AC_SUBST(GCOV)

fi

AM_CONDITIONAL(ENABLE_COVERAGE, test "x$enable_cov" = "xyes")

AC_SUBST(PACKAGE_VERSION)

AC_MSG_NOTICE([Building libsass ($VERSION)])

AC_CONFIG_FILES([GNUmakefile src/GNUmakefile src/support/libsass.pc])

AC_OUTPUT