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

AC_INIT(physfs.c)

dnl ---------------------------------------------------------------------

dnl System/version info

dnl ---------------------------------------------------------------------

# Making releases:

#   MICRO_VERSION += 1;

#   INTERFACE_AGE += 1;

#   BINARY_AGE += 1;

# if any functions have been added, set INTERFACE_AGE to 0.

# if backwards compatibility has been broken,

# set BINARY_AGE and INTERFACE_AGE to 0.

MAJOR_VERSION=0

MINOR_VERSION=1

MICRO_VERSION=6

INTERFACE_AGE=0

BINARY_AGE=0

VERSION=$MAJOR_VERSION.$MINOR_VERSION.$MICRO_VERSION

AC_SUBST(MAJOR_VERSION)

AC_SUBST(MINOR_VERSION)

AC_SUBST(MICRO_VERSION)

AC_SUBST(INTERFACE_AGE)

AC_SUBST(BINARY_AGE)

AC_SUBST(VERSION)

# libtool versioning

LT_RELEASE=$MAJOR_VERSION.$MINOR_VERSION

LT_CURRENT=`expr $MICRO_VERSION - $INTERFACE_AGE`

LT_REVISION=$INTERFACE_AGE

LT_AGE=`expr $BINARY_AGE - $INTERFACE_AGE`

AC_SUBST(LT_RELEASE)

AC_SUBST(LT_CURRENT)

AC_SUBST(LT_REVISION)

AC_SUBST(LT_AGE)

dnl Detect the canonical host and target build environment

AC_CANONICAL_HOST

AC_CANONICAL_TARGET

dnl Setup for automake

AM_CONFIG_HEADER(config.h)

AM_INIT_AUTOMAKE(physfs, $VERSION)

dnl ---------------------------------------------------------------------

dnl Compilers and other tools

dnl ---------------------------------------------------------------------

AC_PROG_CC

AC_PROG_INSTALL

AC_PROG_LN_S

AC_PROG_LIBTOOL

dnl ---------------------------------------------------------------------

dnl Debug mode?

dnl ---------------------------------------------------------------------

AC_ARG_ENABLE(debug,

[  --enable-debug             enable debug mode [default=no]],

              , enable_debug=no)

if test x$enable_debug = xyes; then

  if test x$ac_cv_prog_cc_g = xyes; then

    CFLAGS="-g -O0"

  else

    CFLAGS="-O0"

  fi

  CFLAGS="$CFLAGS -Werror"

  AC_DEFINE(DEBUG)

  AC_DEFINE(DEBUG_CHATTER)

else

  CFLAGS="-O2"

  AC_DEFINE(NDEBUG)

fi

dnl ---------------------------------------------------------------------

dnl Build test program?

dnl ---------------------------------------------------------------------

AC_ARG_ENABLE(testprog,

[  --enable-testprog          build test program [default=yes]],

              , enable_testprog=yes)

dnl ---------------------------------------------------------------------

dnl Checks for libraries.

dnl ---------------------------------------------------------------------

require_zlib="no"

dnl Check for zip archiver inclusion...

AC_ARG_ENABLE(zip,

[  --enable-zip               enable ZIP support [default=yes]],

              , enable_zip=yes)

if test x$enable_zip = xyes; then

  AC_DEFINE(PHYSFS_SUPPORTS_ZIP)

  require_zlib="yes"

fi

dnl Check for zip archiver inclusion...

AC_ARG_ENABLE(grp,

[  --enable-grp               enable Build Engine GRP support [default=yes]],

              , enable_grp=yes)

if test x$enable_grp = xyes; then

  AC_DEFINE(PHYSFS_SUPPORTS_GRP)

fi

AC_ARG_ENABLE(internal-zlib,

[  --enable-internal-zlib     use included zlib [default=only if needed]],

              , enable_internal_zlib=maybe)

dnl Check for zlib if needed.

have_external_zlib="no"

if test x$enable_internal_zlib != xyes; then

  if test x$require_zlib = xyes; then

    AC_CHECK_HEADER(zlib.h, have_zlib_hdr=yes)

    AC_CHECK_LIB(z, zlibVersion, have_zlib_lib=yes)

    if test x$have_zlib_hdr = xyes -a x$have_zlib_lib = xyes; then

      have_external_zlib="yes"

    fi

  fi

fi

AC_MSG_CHECKING([what zlib to use])

dnl no zlib is needed at all if we aren't supporting ZIP files.

if test x$require_zlib = xno; then

  enable_internal_zlib="no"

  enable_external_zlib="no"

  AC_MSG_RESULT([no zlib needed])

else

  if test x$enable_internal_zlib = xmaybe; then

    if test x$have_external_zlib = xyes; then

      enable_internal_zlib="no"

      enable_external_zlib="yes"

    else

      enable_internal_zlib="yes"

      enable_external_zlib="no"

    fi

  else

    if test x$enable_internal_zlib = xno -a x$have_external_zlib = xyes; then

      enable_internal_zlib="no"

      enable_external_zlib="yes"

    fi

  fi

  if test x$enable_internal_zlib = xyes; then

    AC_MSG_RESULT([internal zlib])

  else

    if test x$enable_external_zlib = xyes; then

      AC_MSG_RESULT([external zlib])

      LIBS="$LIBS -lz"

    else

      AC_MSG_ERROR([Need zlib, but you disabled our copy and have no system lib])

    fi

  fi

fi

dnl !!! FIXME: separate checks for history and readline...

dnl determine if we should include readline support...

AC_ARG_ENABLE(readline,

[  --enable-readline          use GNU readline in test program [default=yes]],

              , enable_readline=yes)

if test x$enable_readline = xyes; then

  AC_CHECK_HEADER(readline/readline.h, have_readline_hdr=yes)

  AC_CHECK_LIB(readline, readline, have_readline_lib=yes)

  AC_CHECK_HEADER(readline/history.h, have_history_hdr=yes)

  AC_CHECK_LIB(readline, add_history, have_history_lib=yes)

  if test x$have_readline_hdr = xyes -a x$have_readline_lib = xyes; then

    if test x$have_history_hdr = xyes -a x$have_history_lib = xyes; then

      AC_DEFINE(PHYSFS_HAVE_READLINE)

      LIBS="$LIBS -lreadline"

    fi

  fi

fi

# Checks for header files.

AC_HEADER_STDC

AC_CHECK_HEADERS([stdlib.h string.h])

# Checks for typedefs, structures, and compiler characteristics.

AC_C_CONST

AC_TYPE_SIZE_T

# Checks for library functions.

# This is only in the bleeding edge autoconf distro...

#AC_FUNC_MALLOC

AC_FUNC_MEMCMP

AC_CHECK_FUNCS([memset strrchr])

dnl Add Makefile conditionals

AM_CONDITIONAL(BUILD_ZLIB, test x$enable_internal_zlib = xyes)

AM_CONDITIONAL(BUILD_TEST_PHYSFS, test x$enable_testprog = xyes)

AC_OUTPUT([

Makefile

platform/Makefile

archivers/Makefile

test/Makefile

zlib114/Makefile

])