dnl configure.ac
dnl

dnl Version information
m4_define([libdbh_file_compatibility], ["DBH_1.0"])

m4_define([libdbh_version_major], [1])
m4_define([libdbh_version_minor], [0])
m4_define([libdbh_version_micro], [24])
m4_define([libdbh_version], [libdbh_version_major().libdbh_version_minor().libdbh_version_micro()])


AC_INIT([dbh],[libdbh_version()],[dbh-users@lists.sourceforge.net])
AM_INIT_AUTOMAKE([dbh], [libdbh_version()])
AM_CONFIG_HEADER([config.h])
AM_MAINTAINER_MODE
AC_PROG_LIBTOOL

dnl AC_DEFINE([DBH_FILE_VERSION],"DBH_1.0",dbh file compatibility)
DBH_FILE_VERSION=libdbh_file_compatibility()
AC_SUBST([DBH_FILE_VERSION])

DBH_VERSION_MAJOR=libdbh_version_major()
AC_SUBST([DBH_VERSION_MAJOR])

DBH_VERSION_MINOR=libdbh_version_minor()
AC_SUBST([DBH_VERSION_MINOR])

DBH_VERSION_MICRO=libdbh_version_micro()
AC_SUBST([DBH_VERSION_MICRO])

DBH_VERSION=libdbh_version()
AC_SUBST([DBH_VERSION])



dnl Initialize libtool
AC_CANONICAL_HOST
# libtool.m4 is a bit outof sync.
AC_PROG_LIBTOOL


AC_ISC_POSIX
AC_PROG_CC
AM_PROG_CC_STDC
AC_HEADER_STDC
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_SUBST(LIBTOOL_DEPS)
AC_SYS_LARGEFILE


# Taken from Jamie Zawinski's configure script for xscreensaver :
#
# By default, autoconf sets INSTALL_SCRIPT to '${INSTALL_PROGRAM}'.
# That's wrong: it should be set to '${INSTALL}', so that one can
# implement the "install-strip" target properly (strip executables,
# but do not try to strip scripts.)
#
INSTALL_SCRIPT='${INSTALL}'

AC_LINK_FILES($nls_cv_header_libgt, $nls_cv_header_intl)

AC_CHECK_HEADERS(limits.h machine/limits.h math.h stdio.h time.h)

AC_HEADER_STAT
AC_HEADER_DIRENT
AC_C_CONST
AC_C_INLINE
AC_HEADER_TIME

AC_TYPE_SIGNAL

#AC_CHECK_FUNCS(wait3 wait4 waitpid)
AC_CHECK_FUNCS(snprintf vsnprintf strcasecmp strncasecmp)
AC_CHECK_FUNCS(memcpy memmove memset)
#AC_CHECK_FUNC(scandir, AC_DEFINE(HAVE_SCANDIR,1,HAVE_SCANDIR),)

compiler_warnings=yes
AC_MSG_CHECKING(if we want compiler warnings)
AC_ARG_ENABLE(
	warnings,
	[  --enable-warnings       [default=yes] enable gcc compiler warnings],
	compiler_warnings="$enableval", compiler_warnings="yes"
	)
AC_MSG_RESULT($compiler_warnings)

case xyes in
x$ac_cv_c_bigendian)
  echo "Checking integer bit order... bigendian"
  CFLAGS="$CFLAGS -DTURN"
  ;;
*)
  echo "Checking integer bit order... littleendian"
  ;;
esac

# At present, only 32 bit system. 

#AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(unsigned char *)
AC_CHECK_SIZEOF(long long)

m4_define([sizeof_file_pointer], [$ac_cv_sizeof_unsigned_char_p])

SIZEOF_FILE_POINTER=sizeof_file_pointer()
AC_SUBST(SIZEOF_FILE_POINTER)

case $ac_cv_sizeof_int in
  2)		
   CFLAGS="$CFLAGS -DI16_32"
  ;;
  4)
   I32_32=1
   AC_SUBST(I32_32)
   AC_DEFINE_UNQUOTED(I32_32,1,file size support)
   CFLAGS="$CFLAGS -DI32_32"
  ;;
  8)
   CFLAGS="$CFLAGS -DI64_32"
  ;;
esac




AC_ARG_ENABLE(dmalloc,
	[  --enable-dmalloc=PFX    [default=no] enable dmalloc library],
        [ DMALLOC_LIB=$enableval/libdmalloc.a
          AC_DEFINE(DMALLOC,"$DMALLOC",dmalloc)],
)
AC_SUBST(DMALLOC_LIB)

AC_MSG_CHECKING(if prototype for gethostname exists)
AC_EGREP_CPP(gethostname,[#include <unistd.h>],
 AC_MSG_RESULT(yes)
  AC_DEFINE(HAVE_GETHOSTNAME_PROTO,1,HAVE_GETHOSTNAME_PROTO),
 AC_MSG_RESULT(no)
)

dnl Check whether to build with debugging support
BM_DEBUG_SUPPORT

dnl Build ldflags for pkg-config file
BM_PKG_LDFLAGS(PKG)

AC_OUTPUT([
Makefile
dbh.spec
src/Makefile
src/dbh-1.0.pc
src/dbh_config.h
])

echo "CFLAGS -> $CFLAGS"
AC_MSG_RESULT(configure step complete: now do a "make" followed by a make "install")