File: configure.in

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libphysfs 1.0.0-4
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# 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=1
MINOR_VERSION=0
MICRO_VERSION=0
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_SYSTEM

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_CXX
AC_PROG_INSTALL
AC_PROG_LN_S
AC_LIBTOOL_WIN32_DLL 
LIBTOOL="libtool"
AM_PROG_LIBTOOL
AC_CHECK_PROG(we_have_sed, sed, yes, no)

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
    PHYSFSCFLAGS="-g -O0"
  else
    PHYSFSCFLAGS="-O0"
  fi
  PHYSFSCFLAGS="$PHYSFSCFLAGS -Werror -Wall"
  AC_DEFINE([DEBUG], 1, [define if debug build is enabled])
  AC_DEFINE([DEBUG_CHATTER], 1, [define if debug chatter is enabled])
else
  PHYSFSCFLAGS="-O2"
  AC_DEFINE([NDEBUG], 1, [define if debug build is disabled])
fi


dnl ---------------------------------------------------------------------
dnl Profile sorts, etc?
dnl ---------------------------------------------------------------------

AC_ARG_ENABLE(profiling,
[  --enable-profiling         do algorithm profiling [default=no]],
                , enable_profiling=no)
if test x$enable_profiling = xyes; then
  AC_DEFINE([PHYSFS_PROFILING], 1, [define to profile sorting, etc algorithms])
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], 1, [define if zip support is enabled])
  require_zlib="yes"
fi


dnl Check for grp 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], 1, [define if grp support is enabled])
fi

dnl Check for wad archiver inclusion...
AC_ARG_ENABLE(wad,
[  --enable-wad               enable Doom WAD support [default=yes]],
                , enable_wad=yes)
if test x$enable_wad = xyes; then
  AC_DEFINE([PHYSFS_SUPPORTS_WAD], 1, [define if wad support is enabled])
fi

dnl Check for hog archiver inclusion...
AC_ARG_ENABLE(hog,
[  --enable-hog               enable Descent I/II HOG support [default=yes]],
                , enable_hog=yes)
if test x$enable_hog = xyes; then
  AC_DEFINE([PHYSFS_SUPPORTS_HOG], 1, [define if hog support is enabled])
fi


dnl Check for mvl archiver inclusion...
AC_ARG_ENABLE(mvl,
[  --enable-mvl               enable Descent II MVL support [default=yes]],
                , enable_mvl=yes)
if test x$enable_mvl = xyes; then
  AC_DEFINE([PHYSFS_SUPPORTS_MVL], 1, [define if mvl support is enabled])
fi


dnl Check for qpak archiver inclusion...
AC_ARG_ENABLE(qpak,
[  --enable-qpak              enable Quake PAK support [default=yes]],
                , enable_qpak=yes)
if test x$enable_qpak = xyes; then
  AC_DEFINE([PHYSFS_SUPPORTS_QPAK], 1, [define if qpak support is enabled])
fi

dnl Check if we should statically link the included zlib...
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$enable_internal_zlib = xyes; then
    AC_MSG_RESULT([internal zlib])
    PHYSFSCFLAGS="$PHYSFSCFLAGS -DZ_PREFIX"
  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 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$enable_readline = xyes; then
  AC_CHECK_HEADER(readline/readline.h, have_readline_hdr=yes)
  AC_CHECK_LIB(readline, readline, have_readline_lib=yes, , -lcurses)
  AC_CHECK_HEADER(readline/history.h, have_history_hdr=yes)
  AC_CHECK_LIB(readline, add_history, have_history_lib=yes, , -lcurses)
  if test x$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], 1, [define if we have readline])
      have_readline="yes"
    fi
  fi
fi

dnl !!! FIXME: Not sure how to detect this...
dnl check for 64-bit llseek()...
dnl AC_CHECK_LIB(c, llseek, have_llseek=yes)
if test x$have_llseek = xyes; then
  AC_DEFINE([PHYSFS_HAVE_LLSEEK], 1, [define if we have llseek])
fi


dnl determine if we should use the stubbed pthread code.
AC_ARG_ENABLE(pthreads,
[  --enable-pthreads          include POSIX threads support [default=yes]],
                , enable_pthreads=yes)
if test x$enable_pthreads = xyes; then
  AC_CHECK_HEADER(pthread.h, have_pthread_hdr=yes)
  if test x$have_pthread_hdr != xyes; then
    enable_pthreads=no
  fi
fi

dnl determine if we should use the stubbed CD-ROM detection code.
AC_ARG_ENABLE(cdrom,
[  --enable-cdrom             include CD-ROM support [default=yes]],
                , enable_cdrom=yes)

if test x$enable_cdrom = xyes; then
  dnl reset this and let header detection reenable...
  enable_cdrom=no

  dnl BSD systems use sys/ucred.h for getting mounted volumes.
  dnl Linux and others use mntent.h.
  AC_CHECK_HEADER(sys/ucred.h, have_ucred_hdr=yes)
  if test x$have_ucred_hdr = xyes; then
    AC_DEFINE([PHYSFS_HAVE_SYS_UCRED_H], 1, [define if we have sys/ucred.h])
    enable_cdrom=yes
  fi

  AC_CHECK_HEADER(mntent.h, have_mntent_hdr=yes)
  if test x$have_mntent_hdr = xyes; then
    AC_DEFINE([PHYSFS_HAVE_MNTENT_H], 1, [define if we have mntent.h])
    enable_cdrom=yes
  fi
fi

dnl determine language.
AC_ARG_ENABLE(language,
[  --enable-language=lang     Select natural language. [default=english]],
          physfslang=`echo $enable_language |tr A-Z a-z`, physfslang=english)

AC_MSG_CHECKING([if language choice is supported])
physfs_valid_lang=no

if test x$physfslang = xenglish; then
  physfs_valid_lang=yes
  AC_DEFINE([PHYSFS_LANG], PHYSFS_LANG_ENGLISH, [define desired natural language])
fi

if test x$physfslang = xgerman; then
  physfs_valid_lang=yes
  AC_DEFINE([PHYSFS_LANG], PHYSFS_LANG_GERMAN, [define desired natural language])
fi

if test x$physfslang = xfrench; then
  physfs_valid_lang=yes
  AC_DEFINE([PHYSFS_LANG], PHYSFS_LANG_FRENCH, [define desired natural language])
fi

if test x$physfslang = xrussian-koi8-r; then
  physfs_valid_lang=yes
  AC_DEFINE([PHYSFS_LANG], PHYSFS_LANG_RUSSIAN_KOI8_R, [define desired natural language])
fi

if test x$physfslang = xrussian-cp1251; then
  physfs_valid_lang=yes
  AC_DEFINE([PHYSFS_LANG], PHYSFS_LANG_RUSSIAN_CP866, [define desired natural language])
fi

if test x$physfslang = xrussian-cp866; then
  physfs_valid_lang=yes
  AC_DEFINE([PHYSFS_LANG], PHYSFS_LANG_RUSSIAN_CP866, [define desired natural language])
fi

if test x$physfslang = xrussian-iso-8859-5; then
  physfs_valid_lang=yes
  AC_DEFINE([PHYSFS_LANG], PHYSFS_LANG_RUSSIAN_ISO_8859_5, [define desired natural language])
fi

dnl Add other language checks here...


AC_MSG_RESULT([$physfs_valid_lang])
if test x$physfs_valid_lang = xno; then
  AC_MSG_WARN([***])
  AC_MSG_WARN([*** You've asked for "$physfslang" language support...])
  AC_MSG_WARN([***  ...but we don't support that.])
  AC_MSG_WARN([*** You could choose another language,])
  AC_MSG_WARN([***   but is this what you REALLY wanted?])
  AC_MSG_WARN([*** Please see the LANG section of physfs_internal.h])
  AC_MSG_WARN([***  for info on writing a translation.])
  AC_MSG_WARN([***])
  AC_MSG_WARN([*** Currently known languages:])
  AC_MSG_WARN([***   --enable-language=english])
  AC_MSG_WARN([***   --enable-language=german])
  AC_MSG_WARN([***   --enable-language=french])
  AC_MSG_WARN([***   --enable-language=russian-koi8-r])
  AC_MSG_WARN([***   --enable-language=russian-cp1251])
  AC_MSG_WARN([***   --enable-language=russian-cp866])
  AC_MSG_WARN([***   --enable-language=russian-iso-8859-5])
  AC_MSG_WARN([***])
  AC_MSG_ERROR([*** unsupported language. stop.])
fi

have_non_posix_threads=no

AC_MSG_CHECKING([if this is BeOS])
if test x$target_os = xbeos; then
  this_is_beos=yes
  have_non_posix_threads=yes
  enable_cdrom=yes
  enable_pthreads=no
  LIBS="$LIBS -lroot -lbe"
else
  this_is_beos=no
fi

AC_MSG_RESULT([$this_is_beos])

AC_MSG_CHECKING([if this is Cygwin])
if test x$target_os = xcygwin; then
  this_is_cygwin=yes
  PHYSFSCFLAGS="$PHYSFSCFLAGS -DWIN32"
  enable_cdrom=yes
  enable_pthreads=no
  have_non_posix_threads=yes
else
  this_is_cygwin=no
fi

AC_MSG_RESULT([$this_is_cygwin])

this_is_macosx=no
if test x$we_have_sed = xyes; then
  AC_MSG_CHECKING([if this is MacOS X])
  x=`echo $target_os |sed "s/darwin.*/darwin/"`
  if test x$x = xdarwin -a x$target_vendor = xapple; then
    this_is_macosx=yes
    PHYSFSLDFLAGS="$PHYSFSLDFLAGS -Wl,-framework -Wl,Carbon -Wl,-framework -Wl,IOKit"
  fi

  AC_MSG_RESULT([$this_is_macosx])
fi

this_is_freebsd=no
if test x$we_have_sed = xyes; then
  AC_MSG_CHECKING([if this is FreeBSD])
  x=`echo $target_os |tr A-Z a-z |sed "s/.*freebsd.*/freebsd/"`
  if test x$x = xfreebsd; then
    this_is_freebsd=yes
    PHYSFSLDFLAGS="$PHYSFSLDFLAGS -pthread"
  fi

  AC_MSG_RESULT([$this_is_freebsd])
fi

this_is_openbsd=no
if test x$we_have_sed = xyes; then
  AC_MSG_CHECKING([if this is OpenBSD])
  x=`echo $target_os |tr A-Z a-z |sed "s/.*openbsd.*/openbsd/"`
  if test x$x = xopenbsd; then
    this_is_openbsd=yes
    PHYSFSLDFLAGS="$PHYSFSLDFLAGS -pthread"
  fi

  AC_MSG_RESULT([$this_is_openbsd])
fi

this_is_atheos=no
if test x$we_have_sed = xyes; then
  AC_MSG_CHECKING([if this is AtheOS])
  x=`echo $target_os |tr A-Z a-z |sed "s/.*atheos.*/atheos/"`
  if test x$x = xatheos; then
    this_is_atheos=yes
    enable_cdrom=no
    enable_pthreads=no
  fi

  AC_MSG_RESULT([$this_is_atheos])
fi

this_is_os2=no
if test x$we_have_sed = xyes; then
  AC_MSG_CHECKING([if this is OS/2])
  x=`echo $target_os |tr A-Z a-z |sed "s/.*os2.*/os2/"`
  if test x$x = xos2; then
    this_is_os2=yes
    have_non_posix_threads=yes
    enable_cdrom=yes
    enable_pthreads=no
    PHYSFSCFLAGS="$PHYSFSCFLAGS -DOS2"
  fi

  AC_MSG_RESULT([$this_is_os2])
fi

this_is_mint=no
if test x$we_have_sed = xyes; then
  AC_MSG_CHECKING([if this is MiNT])
  x=`echo $target_os |tr A-Z a-z |sed "s/.*mint.*/mint/"`
  if test x$x = xmint; then
    this_is_mint=yes
    enable_cdrom=no
    enable_pthreads=no
  fi

  AC_MSG_RESULT([$this_is_mint])
fi


dnl Some platform might disable this, so check this down here...
if test x$enable_cdrom != xyes; then
  AC_DEFINE([PHYSFS_NO_CDROM_SUPPORT], 1, [define if we have no CD support])
  AC_MSG_WARN([***])
  AC_MSG_WARN([*** There is no CD-ROM support in this build!])
  AC_MSG_WARN([*** PhysicsFS will just pretend there are no discs.])
  AC_MSG_WARN([*** This may be fine, depending on how PhysicsFS is used,])
  AC_MSG_WARN([***   but is this what you REALLY wanted?])
  AC_MSG_WARN([*** (Maybe fix configure.in, or write a platform driver?)])
  AC_MSG_WARN([***])
fi

if test x$enable_pthreads != xyes; then
  AC_DEFINE([PHYSFS_NO_PTHREADS_SUPPORT], 1, [define if we have no POSIX threads support])
  if test x$have_non_posix_threads != xyes; then
    AC_MSG_WARN([***])
    AC_MSG_WARN([*** There is no thread support in this build!])
    AC_MSG_WARN([*** PhysicsFS will NOT be reentrant!])
    AC_MSG_WARN([*** This may be fine, depending on how PhysicsFS is used,])
    AC_MSG_WARN([***   but is this what you REALLY wanted?])
    AC_MSG_WARN([*** (Maybe fix configure.in, or write a platform driver?)])
    AC_MSG_WARN([***])
  fi
fi


# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([stdlib.h string.h assert.h])

# Checks for typedefs, structures, and compiler characteristics.
dnl AC_C_CONST
dnl 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])

AC_CHECK_SIZEOF(int, 4)

CFLAGS="$CFLAGS $PHYSFSCFLAGS -D_REENTRANT -D_THREAD_SAFE"
LDFLAGS="$LDFLAGS $PHYSFSLDFLAGS -no-undefined"

dnl Add Makefile conditionals
AM_CONDITIONAL(BUILD_ZLIB, test x$enable_internal_zlib = xyes)
AM_CONDITIONAL(BUILD_TEST_PHYSFS, test x$enable_testprog = xyes)
AM_CONDITIONAL(BUILD_MACOSX, test x$this_is_macosx = xyes)
AM_CONDITIONAL(BUILD_BEOS, test x$this_is_beos = xyes)
AM_CONDITIONAL(BUILD_CYGWIN, test x$this_is_cygwin = xyes)
AM_CONDITIONAL(BUILD_READLINE, test x$have_readline = xyes)

AC_OUTPUT([
Makefile
archivers/Makefile
platform/Makefile
zlib121/Makefile
test/Makefile
extras/Makefile
physfs.spec
])

dnl end of configure.in ...