source: branches/samba-3.5.x/lib/popt/libpopt.m4@ 960

dnl Check to see if we should use the included popt

INCLUDED_POPT=auto
AC_ARG_WITH(included-popt,
[  --with-included-popt    use bundled popt library, not from system],
[ INCLUDED_POPT=$withval ])

AC_SUBST(POPT_LIBS)
AC_SUBST(POPT_CFLAGS)

if test x"$INCLUDED_POPT" != x"yes"; then
        AC_CHECK_HEADERS(popt.h)
        AC_CHECK_LIB(popt, poptGetContext, [ POPT_LIBS="-lpopt" ])
        if test x"$ac_cv_header_popt_h" = x"no" -o x"$ac_cv_lib_popt_poptGetContext" = x"no"; then
                INCLUDED_POPT=yes
                POPT_CFLAGS=""
        else
                INCLUDED_POPT=no
        fi
fi

AC_MSG_CHECKING(whether to use included popt)
AC_MSG_RESULT($INCLUDED_POPT)
if test x"$INCLUDED_POPT" != x"no"; then
        dnl find the popt sources. This is meant to work both for 
        dnl popt standalone builds, and builds of packages using popt
        poptdir=""
        poptpaths="$srcdir $srcdir/lib/popt $srcdir/popt $srcdir/../popt $srcdir/../lib/popt"
        for d in $poptpaths; do
                if test -f "$d/popt.c"; then
                        poptdir="$d"            
                        POPT_CFLAGS="-I$d"
                        AC_SUBST(poptdir)
                        break
                fi
        done
        if test x"$poptdir" = "x"; then
                AC_MSG_ERROR([cannot find popt source in $poptpaths])
        fi
        POPT_OBJ="popt.o findme.o poptconfig.o popthelp.o poptparse.o"
        AC_SUBST(POPT_OBJ)
        AC_CHECK_HEADERS([float.h alloca.h])
fi