configure.ac

dnl Process this file with autoconf to produce a configure script.
AC_INIT(Angband, 4.2.2, bugs@rephial.org)
AC_CONFIG_SRCDIR(src)
AC_CONFIG_MACRO_DIR([m4])

for i in configure.ac m4/*; do
	AS_IF([test $i -nt configure], [
		AC_MSG_ERROR([$i is newer than configure! Run ./autogen.sh!])
	])
done

BUILDSYS_INIT

AC_SUBST(PACKAGE, angband)

AC_CONFIG_HEADERS(src/autoconf.h)


AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])

AC_ARG_WITH(setgid,
	[  --with-setgid=NAME      install angband as group NAME],
	[wsetgid=yes])
AC_ARG_WITH(private_dirs,
	[  --with-private-dirs     use private scorefiles/savefiles])
AC_ARG_WITH(no_install,
	[  --with-no-install       don't install, just run in-place])

if test "x$with_setgid" = "xyes"; then
	AC_MSG_ERROR([Please specify a group to install as.])
fi

if test "x$wsetgid" = "x" && test "x$with_no_install" = "x"; then
	with_private_dirs="yes"
fi

if test "x$wsetgid$with_private_dirs$with_no_install" != "xyes";  then

	echo "Please run ./configure with only one of:

--with-setgid=<groupname>
    This configures the game to store savefiles and scorefiles in a central
    location on the system, writeable only by the group \"groupname\".  If you
    want a traditional installation of Angband, where all users share a
    scorefile, then use this option, and set the groupname to your \"games\"
    group.  This option requires the game to have the \"setgid\" bit set on its
    permissions, and thus this option requires root when installing.

--with-private-dirs
    This configures the game to store savefiles and scorefiles for each user
    in that user's home directory.  The game requires no special privileges if
    you do this, and should be used for most installations of the game. This
    is the default, if you specify none of these three options.

--with-no-install
    This leaves the game to run from the directory into which it was extracted
    and compiled, touching nothing else on the system - make install is not
    run.
"
	AC_MSG_ERROR([Please specify an installation method.])
fi

if test "x$with_no_install" = "x"; then
	echo "Note: You have chosen to compile for installation, with data files
    in standard locations. For development, you may wish to consider using
    --with-no-install which will leave the game to run from the directory
    into which it was extracted and compiled.
"
fi

AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_LN_S
AC_PROG_INSTALL
AC_PROG_MKDIR_P
AC_CHECK_TOOL(RC, windres, no)
AC_ARG_VAR([RST2HTML], [command for converting reStructuredText to HTML])
AC_CHECK_PROGS([RST2HTML], [rst2html.py rst2html], [NOTFOUND])
AC_SUBST(RST2HTML)
AC_ARG_VAR([RST2LATEX], [command for converting reStructuredText to LaTeX])
AC_CHECK_PROGS([RST2LATEX], [rst2latex.py rst2latex], [NOTFOUND])
AC_SUBST(RST2LATEX)
AC_CHECK_PROGS([PDFLATEX], [pdflatex], [NOTFOUND])
AC_SUBST(PDFLATEX)

AC_PATH_PROG(RM, rm)
AC_PATH_PROG(MV, mv)
AC_PATH_PROG(CP, cp)

AC_HEADER_DIRENT
AC_CHECK_HEADERS([fcntl.h stdint.h])
AC_HEADER_STDBOOL
AC_C_CONST
AC_CHECK_FUNCS([mkdir setresgid setegid stat])

dnl needed because h-basic.h checks for this define for autoconf support.
CPPFLAGS="$CPPFLAGS -DHAVE_CONFIG_H"
CPPFLAGS="$CPPFLAGS -I." 

if test "$GCC" = "yes"; then
	CFLAGS="$CFLAGS -W -Wall -Wextra -Wno-unused-parameter -pedantic"
	AC_MSG_CHECKING([if gcc supports -Wno-missing-field-initializers])
	_gcc_cflags_save=$CFLAGS
	CFLAGS="-Wno-missing-field-initializers"
	AC_COMPILE_IFELSE([AC_LANG_SOURCE([])],_gcc_wopt=yes,_gcc_wopt=no)
	AC_MSG_RESULT($_gcc_wopt)
	CFLAGS=$_gcc_cflags_save;
	if test x"$_gcc_wopt" = xyes ; then
		CFLAGS="$CFLAGS -Wno-missing-field-initializers"
	fi
fi

MY_PROG_MAKE_SYSVINC
MY_PROG_MAKE_SINCLUDE

dnl Work around an autoconf bug.
if test "$prefix" = "NONE"; then
	prefix="${ac_default_prefix}"
fi
if test "$exec_prefix" = "NONE"; then
	exec_prefix="${prefix}"
fi

if test "x$with_private_dirs" != "x"; then
	AC_DEFINE(USE_PRIVATE_PATHS, 1, [Define to use private save and score paths.])
fi

# Only change bindir if it's the configure-supplied default, which handily doesn't expand exec_prefix
if test "x$bindir" = "x\${exec_prefix}/bin"; then
  bindir=${exec_prefix}/games
fi

if test "x$with_no_install" != "x"; then
	configpath="${PWD}/lib/"
else
	configpath="${sysconfdir}/${PACKAGE}/"
fi

case "/$configpath" in
	*/) MY_EXPAND_DIR(configdir, "$configpath")  ;;
	*)  MY_EXPAND_DIR(configdir, "$configpath/") ;;
esac


if test "x$with_no_install" != "x"; then
	libpath="${PWD}/lib/"
	bindir=".."
else
	libpath="${datarootdir}/${PACKAGE}/"
fi

case "/$libpath" in
	*/) MY_EXPAND_DIR(libdatadir, "$libpath")  ;;
	*)  MY_EXPAND_DIR(libdatadir, "$libpath/") ;;
esac

if test "x$with_no_install" != "x"; then
	docdir="${PWD}/doc/"
else
	# Only change docdir if it's the configure-supplied default, which handily doesn't expand prefix
	if test "x$docdir" = "x\${datarootdir}/doc/\${PACKAGE_TARNAME}"; then
		docdir=${datarootdir}/doc/${PACKAGE}
	fi
fi

case "/$docdir" in
 	*/) MY_EXPAND_DIR(docdatadir, "$docdir")  ;;
	*)  MY_EXPAND_DIR(docdatadir, "$docdir/") ;;
esac

if test "x$with_no_install" != "x"; then
	varpath="${PWD}/lib/"
else
	varpath="${localstatedir}/games/${PACKAGE}/"
fi

case "/$varpath" in
	*/) MY_EXPAND_DIR(vardatadir, "$varpath")  ;;
	*)  MY_EXPAND_DIR(vardatadir, "$varpath/") ;;
esac
if test "x$with_private_dirs" != "x"; then
	varshareddatadir="${vardatadir}user/"
else
	varshareddatadir="${vardatadir}"
fi


AC_SUBST([configdir])
AC_SUBST([libdatadir])
AC_SUBST([vardatadir])
AC_SUBST([varshareddatadir])
AC_SUBST([docdatadir])

AC_DEFINE_UNQUOTED([DEFAULT_CONFIG_PATH], "${configdir}", [Path to the game's configuration data])
AC_DEFINE_UNQUOTED([DEFAULT_LIB_PATH], "${libdatadir}", [Path to the game's lib directory])
AC_DEFINE_UNQUOTED([DEFAULT_DATA_PATH], "${vardatadir}", [Path to the game's variable data])

NOINSTALL="$with_noinstall"; AC_SUBST(NOINSTALL)
SETEGID="$with_setgid";      AC_SUBST(SETEGID)
if test "x$wsetgid" == "xyes"; then
	AC_DEFINE(SETGID, 1, [Define if running as a central install on a multiuser system that has setresgid or setegid support.])
fi

dnl Frontends
AC_ARG_ENABLE(curses,
	[AS_HELP_STRING([--enable-curses],    [Enables Curses frontend (default: enabled)])],
	[enable_curses=$enableval],
	[enable_curses=yes])
AC_ARG_ENABLE(x11,
	[AS_HELP_STRING([--enable-x11],       [Enables X11 frontend (default: enabled)])],
	[enable_x11=$enableval],
	[enable_x11=yes])
AC_ARG_ENABLE(sdl2,
	[AS_HELP_STRING([--enable-sdl2],       [Enables SDL2 frontend (default: disabled)])],
	[enable_sdl2=$enableval],
	[enable_sdl2=no])
AC_ARG_ENABLE(sdl,
	[AS_HELP_STRING([--enable-sdl],       [Enables SDL frontend (default: disabled)])],
	[enable_sdl=$enableval],
	[enable_sdl=no])
AC_ARG_ENABLE(win,
	[AS_HELP_STRING([--enable-win],       [Enables Windows frontend (default: disabled)])],
	[enable_win=$enableval],
	[enable_win=no])
AC_ARG_ENABLE(test,
	[AS_HELP_STRING([--enable-test],      [Enables test frontend (default: disabled)])],
	[enable_test=$enableval],
	[enable_test=no])
AC_ARG_ENABLE(stats,
	[AS_HELP_STRING([--enable-stats],     [Enables stats frontend (default: disabled)])],
	[enable_stats=$enableval],
	[enable_stats=no])
AC_ARG_ENABLE(spoil,
	[AS_HELP_STRING([--enable-spoil],     [Enable command-line spoiler generation (default: enabled)])],
	[enable_spoil=$enableval],
	[enable_spoil=yes])

dnl Sound modules
AC_ARG_ENABLE(sdl2_mixer,
	[AS_HELP_STRING([--enable-sdl2-mixer], [Enables SDL2 mixer sound support (default: disabled unless SDL2 enabled)])],
	[enable_sdl2_mixer=$enable_sdl2_mixer],
	[enable_sdl2_mixer=$enable_sdl2])
AC_ARG_ENABLE(sdl_mixer,
	[AS_HELP_STRING([--enable-sdl-mixer], [Enables SDL mixer sound support (default: disabled unless SDL enabled)])],
	[enable_sdl_mixer=$enable_sdl_mixer],
	[enable_sdl_mixer=$enable_sdl])

MAINFILES="\$(BASEMAINFILES)"

dnl curses checking
if test "$enable_curses" = "yes"; then
	AM_PATH_NCURSESW(with_curses=yes, with_curses=no)
	if test "$with_curses" = "yes"; then
		AC_DEFINE(USE_NCURSES, 1, [Define to 1 if NCurses is found.])
		AC_DEFINE(USE_GCU, 1, [Define to 1 if using the Curses frontend.])
		CPPFLAGS="${CPPFLAGS} ${NCURSES_CFLAGS}"
		LIBS="${LIBS} ${NCURSES_LIBS}"
		MAINFILES="${MAINFILES} \$(GCUMAINFILES)"
	else
		AC_CHECK_LIB([ncursesw], [initscr], [
			AC_DEFINE(USE_NCURSES, 1, [Define to 1 if NCurses is found.])
			AC_DEFINE(USE_GCU, 1, [Define to 1 if using the Curses frontend.])
			AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1, [Defined for systems that guard ncurses decls with _XOPEN_SOURCE_EXTENDED])
			with_curses=yes
			LIBS="${LIBS} -lncursesw"
			MAINFILES="${MAINFILES} \$(GCUMAINFILES)"
		])
		AC_SEARCH_LIBS([keypad], [tinfow tinfo])
	fi
fi

AC_CHECK_FUNCS([mvwaddnwstr use_default_colors can_change_color])

dnl X11 checking
if test "$enable_x11" = "yes"; then
	AC_PATH_XTRA

	if test "x$have_x" != "xyes"; then
		with_x11=no
	else
		AC_DEFINE(USE_X11, 1, [Define to 1 if using the X11 frontend and X11 libraries are found.])
		CPPFLAGS="$CPPFLAGS $X_CFLAGS"
		LIBS="${LIBS} ${X_PRE_LIBS} ${X_LIBS} -lX11 ${X_EXTRA_LIBS}"
		MAINFILES="${MAINFILES} \$(X11MAINFILES)"
		with_x11=yes
	fi
fi

dnl SDL2 checking
if test "$enable_sdl2" = "yes"; then
	AM_PATH_SDL2(2.0.0,,)

	if test "$SDL2_CONFIG" = "no"; then
		with_sdl2=no
	else
		hold_CPPFLAGS="${CPPFLAGS}"
		hold_LIBS="${LIBS}"
		SDL2_CFLAGS=`sdl2-config --cflags`
		CPPFLAGS="${CPPFLAGS} ${SDL2_CFLAGS}"
		SDL2_LIBS=`sdl2-config --libs`
		LIBS="${LIBS} ${SDL2_LIBS}"
		AC_CHECK_LIB(SDL2_image, IMG_LoadPNG_RW, with_sdl2=yes, with_sdl2=no)
		AC_CHECK_LIB(SDL2_ttf, TTF_Init, with_sdl2x=yes, with_sdl2=no)

		if test "$with_sdl2" = "yes"; then
			AC_DEFINE(USE_SDL2, 1, [Define to 1 if using the SDL2 interface and SDL2 is found.])
			LIBS="${LIBS} -lSDL2_image -lSDL2_ttf"
			MAINFILES="${MAINFILES} \$(SDL2MAINFILES)"
			enable_sdl=no
			enable_sdl_mixer=no
		else
			CPPFLAGS="${hold_CPPFLAGS}"
			LIBS="${hold_LIBS}"
		fi
	fi
else
	dnl SDL checking
	if test "$enable_sdl" = "yes"; then
	   AM_PATH_SDL(1.2.10,,)

	   if test "$SDL_CONFIG" = "no"; then
		  with_sdl=no
	   else
			hold_CPPFLAGS="${CPPFLAGS}"
			hold_LIBS="${LIBS}"
			SDL_CFLAGS=`sdl-config --cflags`
			CPPFLAGS="${CPPFLAGS} ${SDL_CFLAGS}"
			SDL_LIBS=`sdl-config --libs`
			LIBS="${LIBS} ${SDL_LIBS}"
			AC_CHECK_LIB(SDL_image, IMG_LoadPNG_RW, with_sdl=yes, with_sdl=no)
			AC_CHECK_LIB(SDL_ttf, TTF_Init, with_sdlx=yes, with_sdl=no)

			if test "$with_sdl" = "yes"; then
			   		AC_DEFINE(USE_SDL, 1, [Define to 1 if using the SDL interface and SDL is found.])
					LIBS="${LIBS} -lSDL_image -lSDL_ttf"
					MAINFILES="${MAINFILES} \$(SDLMAINFILES)"
			else
					CPPFLAGS="${hold_CPPFLAGS}"
					LIB="${hold_LIBS}"
			fi
	    fi
	fi
fi

dnl Windows checking
if test "$enable_win" = "yes"; then
	AC_DEFINE(USE_WIN, 1, [Define to 1 if using the Windows interface.])
	AC_DEFINE(SOUND, 1, [Define to 1 if including sound support.])
	CPPFLAGS="${CPPFLAGS} -DWINDOWS -Iwin/include"
	CFLAGS="${CFLAGS} -static"
	LDFLAGS="${LDFLAGS} -Lwin/lib"
	LIBS="${LIBS} -mwindows -lwinmm -lzlib -llibpng -lmsimg32"
dnl Note complete replacement of all main files
	MAINFILES="\$(WINMAINFILES)"
fi

dnl SDL2 mixer checking
if test "$enable_sdl2_mixer" = "yes"; then
	if test "$enable_sdl_mixer" = "yes"; then
		AC_MSG_ERROR(both --enable-sdl-mixer and --enable-sdl2-mixer set, 1)
	fi
	hold_CPPFLAGS="${CPPFLAGS}"
	hold_LIBS="${LIBS}"
	if test "$with_sdl2" != "yes"; then
		SDL2_CFLAGS=`sdl2-config --cflags`
		SDL2_LIBS=`sdl2-config --libs`
		CPPFLAGS="${CPPFLAGS} ${SDL2_CFLAGS}"
		LIBS="${LIBS} ${SDL2_LIBS}"
	fi
	AC_CHECK_LIB(SDL2_mixer, Mix_OpenAudio, found_sdl2_mixer=yes, found_sdl2_mixer=no)

	if test "$found_sdl2_mixer" = "yes"; then
		AC_DEFINE(SOUND_SDL2, 1, [Define to 1 if using SDL2_mixer sound support and it's found.])
		AC_DEFINE(SOUND, 1, [Define to 1 if including sound support.])
		LIBS="${LIBS} -lSDL2_mixer"
		MAINFILES="${MAINFILES} \$(SNDSDLFILES)"
	else
		CPPFLAGS="${hold_CPPFLAGS}"
		LIBS="${hold_LIBS}"
	fi
fi

dnl SDL mixer checking
if test "$enable_sdl_mixer" = "yes"; then
	hold_CPPFLAGS="${CPPFLAGS}"
	hold_LIBS="${LIBS}"
	if test "$with_sdl" != "yes"; then
		SDL_CFLAGS=`sdl-config --cflags`
		CPPFLAGS="${CPPFLAGS} ${SDL_CFLAGS}"
		SDL_LIBS=`sdl-config --libs`
		LIBS="${LIBS} ${SDL_LIBS}"
	fi
	AC_CHECK_LIB(SDL_mixer, Mix_OpenAudio, found_sdl_mixer=yes, found_sdl_mixer=no)

	if test "$found_sdl_mixer" = "yes"; then
		AC_DEFINE(SOUND_SDL, 1, [Define to 1 if using SDL_mixer sound support and it's found.])
		AC_DEFINE(SOUND, 1, [Define to 1 if including sound support.])
		LIBS="${LIBS} -lSDL_mixer"
		MAINFILES="${MAINFILES} \$(SNDSDLFILES)"
	else
		CPPFLAGS="${hold_CPPFLAGS}"
		LIBS="${hold_LIBS}"
	fi
fi


LIBS="${LIBS} -lm"


dnl Test checking
if test "$enable_test" = "yes"; then
	AC_DEFINE(USE_TEST, 1, [Define to 1 to build the test frontend])
	MAINFILES="${MAINFILES} \$(TESTMAINFILES)"
fi

dnl Stats checking

LDFLAGS_SAVE="$LDFLAGS"
if test "$enable_stats" = "yes"; then
	# SQLite3 detection
	SQLITE3_OK=yes
	AC_CHECK_HEADER(sqlite3.h, [], [
		SQLITE3_OK=missing
		for sqlite3_path in $SEARCH_DIR_HEADERS; do
			if test "x$ac_cv_header_sqlite3_h" != xyes; then
				unset ac_cv_header_sqlite3_h
				AC_CHECK_HEADER($sqlite3_path/sqlite3.h,
					[
						SQLITE3_CFLAGS="-I$sqlite3_path"
						SQLITE3_OK=yes
					]
				)
			fi
		done
	])
	if test "x$SQLITE3_OK" = xyes; then
		AC_CHECK_LIB(sqlite3, sqlite3_open, [
			SQLITE3_LIBS="-lsqlite3"
		], [
			SQLITE3_OK=missing
			for sqlite3_path in $SEARCH_DIR_LIBS; do
				if test "x$ac_cv_lib_sqlite3_sqlite3_open" != xyes; then
					unset ac_cv_lib_sqlite3_sqlite3_open
					LDFLAGS="${LDFLAGS_SAVE} -L$sqlite3_path"
					AC_CHECK_LIB(sqlite3, sqlite3_open, [
						SQLITE3_LDFLAGS="-L$sqlite3_path"
						SQLITE3_LIBS="-lsqlite3"
						SQLITE3_OK=yes
					])
				fi
			done	
		])
	fi
	if test "x$SQLITE3_OK" = xyes; then
		AC_DEFINE(USE_STATS, 1, [Define to 1 to build the stats frontend])
		CPPFLAGS="${CPPFLAGS} ${SQLITE3_CFLAGS}"
		LDFLAGS="${LDFLAGS_SAVE} ${SQLITE3_LDFLAGS}"
		LIBS="${LIBS} ${SQLITE3_LIBS}"
		MAINFILES="${MAINFILES} \$(STATSMAINFILES)"
		AC_SUBST(USE_STATS, 1)
	else
		AC_MSG_ERROR(Could not find sqlite3 library; disabling stats)
		enable_stats=no
		AC_DEFINE(USE_STATS, 0, [Define to 0 to omit the stats frontend])
		LDFLAGS="$LDFLAGS_SAVE"
		AC_SUBST(USE_STATS, 0)
	fi
fi

dnl Spoiler checking
if test "$enable_spoil" = "yes"; then
	AC_DEFINE(USE_SPOIL, 1, [Define to 1 to build the command-line spoiler generation])
	MAINFILES="${MAINFILES} \$(SPOILMAINFILES)"
fi

AC_SUBST(MAINFILES, ${MAINFILES})
AC_CONFIG_FILES([mk/buildsys.mk mk/extra.mk])
AC_OUTPUT

if test "x$with_private_dirs" = "xyes"; then
	displayedvardatadir="(not used)"
else
	displayedvardatadir="$vardatadir"
fi

if test "x$with_no_install" = "xyes"; then
	displayedprefix="(not used)"
else
	displayedprefix="$prefix"
fi

echo
echo "Configuration:"
echo
echo "  Install path:                           ${displayedprefix}"
echo "  binary path:                            ${bindir}"
echo "  config path:                            ${configdir}"
echo "  lib path:                               ${libdatadir}"
echo "  doc path:                               ${docdatadir}"
echo "  var path:                               ${displayedvardatadir}"

if test "x$wsetgid" = "xyes"; then
	echo "  (as group ${SETEGID})"
elif test "x$with_private_dirs" = "xyes"; then
	echo "  (with private save and score files in ~/.angband/Angband/)"
fi

echo
echo "-- Frontends --"
if test "$enable_curses" = "yes"; then
	if test "$with_curses" = "no"; then
		echo "- Curses                                  No; missing libraries"
	else
		echo "- Curses                                  Yes"
	fi
else
	echo "- Curses                                  Disabled"
fi
if test "$enable_x11" = "yes"; then
	if test "$with_x11" = "no"; then
		echo "- X11                                     No; missing libraries"
	else
		echo "- X11                                     Yes"
	fi
else
	echo "- X11                                     Disabled"
fi
if test "$enable_sdl2" = "yes"; then
	if test "$with_sdl2" = "no"; then
		echo "- SDL2                                    No; missing libraries"
	else
		echo "- SDL2                                    Yes"
	fi
else
	echo "- SDL2                                    Disabled"
fi
if test "$enable_sdl" = "yes"; then
	if test "$with_sdl" = "no"; then
		echo "- SDL                                     No; missing libraries"
	else
		echo "- SDL                                     Yes"
	fi
else
	echo "- SDL                                     Disabled"
fi

if test "$enable_win" = "yes"; then
	if test "$with_sdl" = "no"; then
		echo "- Windows                                 No; missing libraries"
	else
		echo "- Windows                                 Yes"
	fi
else
	echo "- Windows                                 Disabled"
fi

if test "$enable_test" = "yes"; then
	echo "- Test                                    Yes"
else
    echo "- Test                                    No"
fi

if test "$enable_stats" = "yes"; then
	echo "- Stats                                   Yes"
else
    echo "- Stats                                   No"
fi

if test "$enable_spoil" = "yes"; then
	echo "- Spoilers                                Yes"
else
    echo "- Spoilers                                No"
fi

echo

if test "$enable_sdl2_mixer" = "yes"; then
	if test "$found_sdl2_mixer" = "no"; then
		echo "- SDL2 sound                              No; missing libraries"
	else
		echo "- SDL2 sound                              Yes"
	fi
else
	echo "- SDL2 sound                              Disabled"
fi
if test "$enable_sdl_mixer" = "yes"; then
	if test "$found_sdl_mixer" = "no"; then
		echo "- SDL sound                               No; missing libraries"
	else
		echo "- SDL sound                               Yes"
	fi
else
	echo "- SDL sound                               Disabled"
fi