# Process this file with autoconf to produce a configure script.
AC_INIT
PACKAGENAME=cxx
MAJOR=0
MINOR=95
SUPPORT=0
# AM_INIT_AUTOMAKE(@PACKAGENAME@, @address@hidden@MINOR@)

# project settings
AC_LANG(C++)

# set flags
CPPFLAGS="${CPPFLAGS} -D_XOPEN_SOURCE_EXTENDED"

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
#AC_PROG_AWK
AC_PROG_LIBTOOL
AM_PROG_LEX

# Checks for libraries.
AC_SEARCH_LIBS(socket, socket)
AC_SEARCH_LIBS(gethostbyname_r, nsl)
AC_SEARCH_LIBS(sched_get_priority_max, rt)

# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADER(FlexLexer.h, , [AC_MSG_ERROR([header FlexLexer.h not found
*** you need to install flex or to specify a path to a FlexLexer.h,
***   i.e. export CPPFLAGS=-I/opt/local/share/include
***   or   setenv CPPFLAGS -I/opt/local/share/include])])
AC_CHECK_HEADERS([arpa/inet.h errno.h fcntl.h netdb.h netinet/in.h nl_types.h \
                  stdlib.h string.h strings.h sys/ioctl.h sys/socket.h \
		  syslog.h unistd.h sys/time.h pthread.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_STRUCT_TM

# Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_FUNC_MALLOC
AC_FUNC_STRFTIME
AC_CHECK_FUNCS([getcwd gethostbyaddr gethostbyname gethostname gettimeofday \
                inet_ntoa localtime_r putenv select socket strerror])

# Options and Dependencies
AC_TRY_COMPILE([#define _REENTRANT
                #include<qpthr/qp.h>], [qpthr::QpInit::QpInit init()],
               [have_threads="yes"], [have_threads="no"])
AC_CHECK_PROG(have_gencat, gencat, yes, no)
AC_CHECK_PROG(have_m4, m4, yes, no)
AC_CHECK_PROG(have_flex, flex, yes, no)
AC_CHECK_PROG(have_sed, sed, yes, no)
AC_CHECK_PROG(have_doxygen, doxygen, yes, no)
AC_CHECK_PROG(have_dia, dia, yes, no)
AC_CHECK_PROG(have_convert, convert, yes, no)
AC_CHECK_PROG(have_dot, dot, yes, no)

# Arguments
AM_MAINTAINER_MODE
AC_ARG_ENABLE(threads,
  [  --disable-threads     disable multithread support],
  [have_threads="$enableval"])
if [[ "$have_threads" = "yes" ]]; then
  CPPFLAGS="${CPPFLAGS} -D_REENTRANT"
  LDFLAGS="${LDFLAGS} -lqpthr"
  DOXYMACROS="_REENTRANT"
  AC_SEARCH_LIBS(pthread_create, pthread)
fi
AC_ARG_ENABLE(dot,
  [  --disable-dot         disable dot graphic tools for documentation],
  [have_dot="$enableval"])
test "$enableval" = "yes" && HAVE_DOT="YES" || HAVE_DOT="NO";

# export variables
AC_SUBST(DOXYMACROS)
AC_SUBST(HAVE_DOT)
AC_SUBST(MAJOR)
AC_SUBST(MINOR)
AC_SUBST(SUPPORT)
AC_SUBST(PACKAGENAME)

# create output
AC_CONFIG_FILES([makefile src/makefile test/makefile doxyfile])
AC_OUTPUT

# warnings and infos
if test "$have_gencat" = "no"; then
AC_MSG_WARN([Missing program gencat!
  - you cannot run the tests with command make check
  - needed for creating your own message catalogs in traceing]); fi
if test "$have_m4" = "no"; then
AC_MSG_WARN([Missing program m4!
  - you cannot rebuild after command make distclean
  - there are precompiled derieved files in the distribution]); fi
if test "$have_flex" = "no"; then
AC_MSG_WARN([Missing program flex!
  - you cannot rebuild after command make distclean
  - there are precompiled derieved files in the distribution]); fi
if test "$have_sed" = "no"; then
AC_MSG_WARN([Missing program sed!
  - you cannot rebuild after command make distclean
  - there are precompiled derieved files in the distribution]); fi
if test "$have_doxygen" = "no"; then
AC_MSG_WARN([Missing program doxygen!
  - you cannot rebuild the documentation with make doc
  - there are precompiled derieved files in the distribution]); fi
if test "$have_dia" = "no"; then
AC_MSG_WARN([Missing program dia!
  - you cannot rebuild the documentation with make doc
  - there are precompiled derieved files in the distribution]); fi
if test "$have_convert" = "no"; then
AC_MSG_WARN([Missing program convert!
  - you cannot rebuild the documentation with make doc
  - there are precompiled derieved files in the distribution]); fi
if test "$have_dot" = "no"; then
AC_MSG_WARN([Missing program dot!
  - when you rebild documentation with make doc, there are no generated images
  - there are precompiled derieved files in the distribution]); fi
if test "$have_threads" = "no"; then
AC_MSG_WARN([Thread support has been disabled!
  - please note that some features, such as utl::Timer won't be supported
  - please note that the libraries won't be thread safe
  - to enable thread support you need QpThread library, at lease 1.3.1
  - QpThread is required with namespaces enabled
  - please set CXXFLAGS and LDFLAGS environment variables so, that the library
    can be found (details see INSTALL and README)
    e.g.: CXXFLAGS=-I/home/qp/include LDFLAGS=-L/home/qp/lib ./configure]); fi
AC_MSG_NOTICE([Results from optional features:
  - thread support:   $have_threads
  - dot grafic tools: $have_dot (for building documentation)
For details, please see the file README])