File: configure.in

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dnl $Id: configure.in,v 1.39 2006/10/08 19:29:18 nyaochi Exp $
dnl
dnl
dnl Exported and configured variables:
dnl CFLAGS
dnl LDFLAGS
dnl INCLUDES


dnl Initialization for autoconf
AC_PREREQ(2.53)
AC_INIT
AC_CONFIG_SRCDIR([cui/main.c])


dnl Checks for system
AC_CANONICAL_HOST
AC_AIX
AC_MINIX
AC_ISC_POSIX

dnl Initialization for automake
AM_INIT_AUTOMAKE(easyh10, 1.5)
AM_CONFIG_HEADER(config.h)
AM_MAINTAINER_MODE
AC_C_PROTOTYPES
AC_HEADER_STDC
AC_CHECK_HEADERS("string.h")

dnl Checks for program
AM_PROG_CC_STDC
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S

dnl Initialozation for libtool
AC_PROG_LIBTOOL

dnl Initialization for variables
CFLAGS="${ac_save_CFLAGS}"
LDFLAGS="$LDFLAGS ${ac_save_LDFLAGS}"
INCLUDES="-I\$(top_srcdir) -I\$(top_srcdir)/include -I\$(srcdir)"

dnl Additional options


dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h limits.h malloc.h strings.h unistd.h stdint.h getopt.h)


dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_CHECK_SIZEOF
AC_TYPE_SIZE_T
AC_STRUCT_TM
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(unsigned short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(unsigned int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(unsigned long)

AC_CHECK_TYPES([uint8_t, uint16_t, uint32_t])

AH_VERBATIM([HAVE_UINT8_T],
[/* add uint8_t type */
#undef HAVE_UINT8_T
#ifndef HAVE_UINT8_T
		typedef unsigned char uint8_t;
#endif])

AH_VERBATIM([HAVE_UINT16_T],
[/* add uint16_t type */
#undef HAVE_UINT16_T
#ifndef HAVE_UINT16_T
		typedef unsigned short uint16_t;
#endif])

if test "${ac_cv_sizeof_unsigned_short}" = "4"; then
   AC_DEFINE(A_UINT32_T,unsigned short)
else
		if test "${ac_cv_sizeof_unsigned_int}" = "4"; then
		   AC_DEFINE(A_UINT32_T,unsigned int)
		   else
				if test "${ac_cv_sizeof_unsigned_long}" = "4"; then
						AC_DEFINE(A_UINT32_T,unsigned long)
													  else
																AC_MSG_ERROR([CHECK_TYPE_uint32_t - please report to the developper])
																								  fi
																								  fi
fi

AH_VERBATIM([HAVE_UINT32_T],
[/* add uint32_t type */
#undef HAVE_UINT32_T
#ifndef HAVE_UINT32_T
#undef A_UINT32_T
	   typedef A_UINT32_T uint32_t;
#endif])


dnl Checks for library functions.
AC_FUNC_ALLOCA
AC_FUNC_MEMCMP
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(getcwd mktime strdup strerror strtol strtoul)

dnl Check for math library
AC_CHECK_LIB(m, rand)

dnl Check for zlib library
AC_CHECK_LIB(z, uncompress, , [AC_MSG_ERROR(libz not found!)])

dnl Check for iconv library
AC_ARG_WITH(
  iconv-header,
  [AC_HELP_STRING(--with-iconv-header=DIR, [iconv header directory])],
  [CFLAGS="-I$withval ${CFLAGS}"]
)

AC_ARG_WITH(
  iconv-library,
  [AC_HELP_STRING(--with-iconv-library=DIR, [iconv library directory])],
  [LDFLAGS="-L$withval ${LDFLAGS}"; with_libiconv=native],
  [with_libiconv=maybe]
)

AC_CHECK_HEADER(iconv.h, , [AC_MSG_ERROR(iconv.h not found!)])

found_iconv=no
case $with_libiconv in
  maybe)
    # Check in the C library first
    AC_CHECK_FUNC(iconv_open, [with_libiconv=no; found_iconv=yes])
    # Check if we have GNU libiconv
    if test $found_iconv = "no"; then
      AC_CHECK_LIB(iconv, libiconv_open, [with_libiconv=gnu; found_iconv=yes])
    fi
    # Check if we have a iconv in -liconv, possibly from vendor
    if test $found_iconv = "no"; then
      AC_CHECK_LIB(iconv, iconv_open, [with_libiconv=native; found_iconv=yes])
    fi
    ;;
  no)
    AC_CHECK_FUNC(iconv_open, [with_libiconv=no; found_iconv=yes])
    ;;
  gnu|yes)
    AC_CHECK_LIB(iconv, libiconv_open, [with_libiconv=gnu; found_iconv=yes])
    ;;
  native)
    echo "native"
    echo $LDFLAGS
    # Check if we have GNU libiconv
    if test $found_iconv = "no"; then
      AC_CHECK_LIB(iconv, libiconv_open, [with_libiconv=gnu; found_iconv=yes])
    fi
    # Check if we have a iconv in -liconv, possibly from vendor
    if test $found_iconv = "no"; then
      AC_CHECK_LIB(iconv, iconv_open, [with_libiconv=native; found_iconv=yes])
    fi
    ;;
esac

if test "x$found_iconv" = "xno" ; then
   AC_MSG_ERROR([*** No iconv() implementation found in C library or libiconv])
fi

if test x$with_libiconv != xno ; then
  case " $INTLLIBS " in
  *[[\ \ ]]-liconv[[\ \	]]*) ;;
  *) ICONV_LIBS="-liconv" ;;
  esac
fi

case $with_libiconv in
  gnu)
    AC_DEFINE(USE_LIBICONV_GNU, 1, [Using GNU libiconv])
    ;;
  native)
    AC_DEFINE(USE_LIBICONV_NATIVE, 1, [Using a native implementation of iconv in a separate library])
    ;;
esac
AM_LANGINFO_CODESET


dnl Checks for id3tag
AC_ARG_WITH(
  id3tag-header,
  [AC_HELP_STRING(--with-id3tag-header=DIR, [id3tag header directory])],
  [CFLAGS="-I$withval ${CFLAGS}"]
)

AC_ARG_WITH(
  id3tag-library,
  [AC_HELP_STRING(--with-id3tag-library=DIR, [id3tag library directory])],
  [LDFLAGS="-L$withval ${LDFLAGS}"]
)

AC_CHECK_HEADER(
  id3tag.h,
  ,
  [AC_MSG_ERROR(id3tag header not found!)]
)
AC_CHECK_LIB(
  id3tag,
  id3_file_fdopen,
  [ID3TAG_LIBS="-lid3tag"],
  AC_MSG_ERROR([id3tag library is not found!])
)
AC_CHECK_LIB(
  id3tag,
  id3_file_gettag,
  [CFLAGS="-DHAVE_LIBID3TAG_GETTAG ${CFLAGS}"]
)

dnl Check for POSIX regex implementation
with_regex=no
AC_CHECK_FUNCS(
  regcomp regexec regfree,
  [with_regex=posix]
)

dnl Check for Rx regex library
AC_CHECK_HEADER(rxposix.h)
AC_CHECK_LIB(rx, regexec, [with_regex=rx])

case $with_regex in
  posix)
    AC_DEFINE(HAVE_POSIX_REGEX, 1, [Using POSIX regex function])
	REGEX_LIBS=""
	;;
  rx)
    AC_DEFINE(HAVE_GNU_RX, 1, [Using GNU Rx library])
	REGEX_LIBS="-lrx"
	;;
  no)
   AC_MSG_ERROR([*** No regex implementation found in C library or GNU Rx])
   ;;
esac

AC_ARG_ENABLE(
  debug,
  [AC_HELP_STRING(--enable-debug, [Turn on debugging])]
)

if test "$enable_debug" = "yes"; then
   CFLAGS="-DDEBUG -O -g ${CFLAGS}"
fi

dnl Export variables
AC_SUBST(CFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(INCLUDES)
AC_SUBST(ID3TAG_LIBS)
AC_SUBST(ICONV_LIBS)
AC_SUBST(REGEX_LIBS)

dnl Checks for library functions.

AC_CONFIG_FILES(Makefile cui/Makefile libh10db/Makefile libucs2/Makefile libgetmediainfo/Makefile easyh10.spec)
AC_OUTPUT