configure.in

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

AC_DEFINE([PACKAGE],0,[Define the package.])
AC_DEFINE([VERSION],0,[Define the package version.])

AC_DEFINE([REGEX],0,[Define if regex is needed.])

AC_DEFINE([SQL],0,[Define if a RDBMS driver is needed.])
AC_DEFINE([GNUSQL],0,[Define if a GNUSQL driver is needed.])
AC_DEFINE([POSTGRES],0,[Define if a POSTGRESQL driver is needed.])
AC_DEFINE([ADD_MYSQL],0,[Define if a MYSQL driver is needed.])
AC_DEFINE([INGRES],0,[Define if a CA-INGRES driver is needed.])

AC_DEFINE([GUILE],0,[Define if GUILE support is needed.])

AC_INIT(src/main.c)
AM_INIT_AUTOMAKE(gurgle,1.61)
AM_CONFIG_HEADER(src/config.h:config.h.in)

dnl Program checks

AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_RANLIB
AC_PROG_MAKE_SET

dnl Two lines below work on Sun, replace with third line for Linux
dnl AC_PROG_LEX
dnl AC_DECL_YYTEXT
AM_PROG_LEX

dnl Architecture checks

AC_C_BIGENDIAN

dnl Header file checks

AC_SUBST(REGEX)
AC_CHECK_HEADERS(regex.h,AC_DEFINE(REGEX))

dnl Feature checks

AC_SUBST(SQL)
AC_SUBST(GNUSQL)
AC_SUBST(POSTGRES)
AC_SUBST(ADD_MYSQL)
AC_SUBST(INGRES)
AC_SUBST(GUILE)

AC_SUBST(GSQL)
AC_SUBST(GSQLDEFS)
AC_SUBST(ESQL)
AC_SUBST(ESQLDEFS)

dnl Setup RDBMS support

GSQL=cp
GSQLDEFS='$*.c'
ESQL=cp
ESQLDEFS='$*.c'

AC_MSG_CHECKING(what RDBMS support is wanted)
rdbms=none
if test $rdbms = none; then
AC_ARG_ENABLE(gnusql,
[  --enable-gnusql         turn on GNUSQL RDBMS support],
[if test "$enableval" = yes; then
  rdbms=gnusql
  AC_MSG_RESULT($rdbms)
  AC_DEFINE(SQL)
  AC_DEFINE(GNUSQL)
  AC_CHECK_LIB(gss, main)
  AC_CHECK_HEADERS(gnusql/dyn_funcs.h)
  AC_CHECK_PROG(GSQL,gsqlc,gsqlc)
  GSQLDEFS=''
fi])
fi
AM_CONDITIONAL(GNUSQL, test X$rdbms = Xgnusql)

if test $rdbms = none; then
AC_ARG_ENABLE(postgres,
[  --enable-postgres       turn on PostgreSQL RDBMS support],
[if test "$enableval" = yes; then
  rdbms=postgres
  AC_MSG_RESULT($rdbms)
  AC_DEFINE(SQL)
  AC_DEFINE(POSTGRES)
  AC_CHECK_LIB(pq, PQdb)
  AC_CHECK_HEADERS(libpq-fe.h)
fi])
fi
AM_CONDITIONAL(POSTGRES, test X$rdbms = Xpostgres)

if test $rdbms = none; then
AC_ARG_ENABLE(mysql,
[  --enable-mysql          turn on MySQL RDBMS support],
[if test "$enableval" = yes; then
  rdbms=mysql
  AC_MSG_RESULT($rdbms)
  AC_DEFINE(SQL)
  AC_DEFINE(ADD_MYSQL)
  AC_CHECK_LIB(mysqlclient, mysql_real_connect)
  AC_CHECK_HEADERS(mysql/mysql.h)
fi])
fi
AM_CONDITIONAL(ADD_MYSQL, test X$rdbms = Xmysql)

if test $rdbms = none; then
AC_ARG_ENABLE(ingres,
[  --enable-ingres          turn on Ingres RDBMS support],
[if test "$enableval" = yes; then
  rdbms=ingres
  AC_MSG_RESULT($rdbms)
  AC_DEFINE(SQL)
  AC_DEFINE(INGRES)
  AC_CHECK_LIB(ingres, main)
  AC_PATH_PROG(ESQL,esqlc,,$PATH:II_SYSTEM/ingres/bin)
  AC_CHECK_PROG(ESQL,esqlc,esqlc)
  ESQLDEFS=''
fi])
fi
AM_CONDITIONAL(INGRES, test X$rdbms = Xingres)      

if test $rdbms = none; then
  AC_MSG_RESULT($rdbms)
fi

dnl Setup GUILE support

AC_MSG_CHECKING(if GUILE support is wanted)
AC_ARG_ENABLE(guile,
[  --enable-guile          turn on GUILE support],
[if test "$enableval" = yes; then
  guile=true
  AC_MSG_RESULT(yes)
  AC_DEFINE(GUILE)
  AC_CHECK_LIB(guile, main)
  AC_CHECK_HEADERS(libguile.h guile/gh.h)
else
  AC_MSG_RESULT(no)
fi], [AC_MSG_RESULT(no)])
AM_CONDITIONAL(GUILE, test X$guile = Xtrue)

AC_CHECK_LIB(m, main)
AC_CHECK_LIB(dl, main)
AC_CHECK_LIB(nsl, main)
AC_CHECK_LIB(socket, main)

dnl Needed for OpenIngres
AC_CHECK_LIB(elf, main)
AC_CHECK_LIB(rt, main)
AC_CHECK_LIB(crypt, main)

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(limits.h sys/time.h sys/types.h)
AC_CHECK_HEADERS(stdio.h varargs.h string.h stdlib.h)

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_SIZE_T
AC_STRUCT_TM

dnl Checks for library functions.
AC_FUNC_STRFTIME
AC_FUNC_VPRINTF

AC_OUTPUT(Makefile src/Makefile src/dbase/Makefile doc/Makefile)