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

dnl Ensure that libcitadel is configured with autoconf 2.52 or newer
AC_PREREQ(2.52)

AC_INIT(libcitadel, 1.06, https://uncensored.citadel.org)

AC_CONFIG_SRCDIR(Makefile.in)
AC_CONFIG_AUX_DIR(conftools)


dnl
dnl Increment LIBREVISION if source code has changed at all
dnl
dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0
dnl
dnl If the API changes compatibly (i.e. simply adding a new function
dnl without changing or removing earlier interfaces), then increment LIBAGE.
dnl 
dnl If the API changes incompatibly set LIBAGE back to 0
dnl

LIBCURRENT=1
LIBREVISION=0
LIBAGE=0

sinclude(conftools/libtool.m4)
sinclude(conftools/ac_c_bigendian_cross.m4)

AC_PROG_LIBTOOL

AC_SUBST(LIBCURRENT)
AC_SUBST(LIBREVISION)
AC_SUBST(LIBAGE)

dnl Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL

if test "$GCC" = yes ; then
    dnl
    dnl Be careful about adding the -fexceptions option; some versions of
    dnl GCC don't support it and it causes extra warnings that are only
    dnl distracting; avoid.
    dnl
    OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
    CFLAGS="$OLDCFLAGS -fexceptions"
    AC_MSG_CHECKING(whether $CC accepts -fexceptions)
    AC_TRY_LINK( , ,
                   AC_MSG_RESULT(yes),
                   AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
    CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
fi

dnl Checks for header files.
AC_HEADER_STDC

AC_CHECK_HEADER(sys/mman.h, [CFLAGS="$CFLAGS -D HAVE_MMAP"])


dnl Checks for typedefs, structures, and compiler characteristics.

AC_C_CONST
AC_TYPE_SIZE_T
AC_CHECK_FUNCS(memmove bcopy)

AC_CONFIG_FILES(Makefile libcitadel.pc)
AC_OUTPUT

abs_srcdir="`cd $srcdir && pwd`"
abs_builddir="`pwd`"
if test "$abs_srcdir" != "$abs_builddir"; then
  make mkdir-init
fi