dnl Process this file with autoconf to produce a configure script.
AC_INIT(src/libical/ical.h)
AM_INIT_AUTOMAKE(libical,0.22a) 
AM_CONFIG_HEADER(config.h)

dnl  Initialize maintainer mode
AM_MAINTAINER_MODE

dnl Checks for programs.
AC_PROG_YACC
AC_PROG_CC
AM_PROG_LEX
AC_PROG_LN_S
AC_PROG_INSTALL

dnl Initialize libtool
AM_PROG_LIBTOOL

AC_SUBST(AR)

AC_CHECK_PROGS(AR, ar aal, ar)
AC_CHECK_PROGS(PERL, perl5 perl)  

AC_DEFINE(ICAL_ERRORS_ARE_FATAL,1)
AC_DEFINE(ICAL_SAFESAVES,1)
AC_DEFINE(ICAL_UNIX_NEWLINE,1)

dnl Checks for libraries.
dnl Replace `main' with a function in -lical:
dnl AC_CHECK_LIB(ical, main)

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(time.h sys/types.h assert.h)

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

AC_CACHE_CHECK(for timezone variable, ac_cv_var_timezone,
        AC_TRY_COMPILE([
#include <time.h>
        ], [
                timezone = 1;
        ], ac_cv_var_timezone=yes, ac_cv_var_timezone=no))
if test $ac_cv_var_timezone = yes; then
        AC_DEFINE(HAVE_TIMEZONE)
else
        AC_CACHE_CHECK(for tm_gmtoff in struct tm, ac_cv_struct_tm_gmtoff,
                AC_TRY_COMPILE([
#include <time.h>
                        ], [
                        struct tm tm;
                        tm.tm_gmtoff = 1;
                        ], ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no
))
        if test $ac_cv_struct_tm_gmtoff = yes; then
                AC_DEFINE(HAVE_TM_GMTOFF)
        else
                AC_ERROR(unable to find a way to determine timezone)
        fi
fi                



dnl Checks for library functions.
AC_CHECK_FUNCS(strdup)

dnl Check for perl
AC_CHECK_PROGS(PERL, perl5 perl)

AC_OUTPUT([
Makefile
design-data/Makefile
doc/Makefile
scripts/Makefile
src/Makefile
src/libical/Makefile
src/libical/icalversion.h
src/libicalvcal/Makefile
test-data/Makefile
])