+dnl
+dnl ------ PERL
+AM_CONDITIONAL(perl,false)
+perl=no
+PERL_XS_INIT="NULL"
+PERL_XS_INIT_INCLUDE=''
+PERL_BINARY=""
+AC_ARG_WITH(perl, [ --with-perl[=FILE] perl binary location],[perl=$withval])
+if test "$perl" != "no"; then
+ AC_MSG_CHECKING(for perl binary)
+ if test "$perl" = "yes"; then
+ perlbin=`which perl`
+ else
+ perlbin="$perl"
+ fi
+ if test -x "$perlbin"; then
+ AC_MSG_RESULT($perlbin)
+ AC_MSG_CHECKING(perl core directory)
+ archdir=`$perlbin -MConfig -e 'print $Config{archlib}'`;
+ perlcore="$archdir/CORE";
+ if test "$perlcore"; then
+ PERL_BINARY="$perlbin"
+ AC_MSG_RESULT($perlcore)
+ AC_DEFINE(HAVE_PERL,1)
+ else
+ AC_MSG_RESULT(Failed)
+ AC_DEFINE(HAVE_PERL,0)
+ fi
+
+ AC_MSG_CHECKING("for ExtUtils::Embed to determine ccopts")
+ PERL_CFLAGS=`$perlbin -MExtUtils::Embed -e ccopts 2>/dev/null`
+ if test "$PERL_CFLAGS"; then
+ AC_MSG_RESULT(OK)
+ else
+ PERL_CFLAGS="-I$perlcore"
+ AC_MSG_RESULT(Using defaults)
+ fi
+
+ AC_MSG_CHECKING("for ExtUtils::Embed to determine ldflags")
+ PERL_LIBS=`$perlbin -MExtUtils::Embed -e ldopts 2>/dev/null`
+ if test "$PERL_LIBS"; then
+ AC_MSG_RESULT(OK)
+ else
+ PERL_LIBS="-L$perlcore -lperl -lm"
+ AC_MSG_RESULT(Using defaults)
+ fi
+
+ AC_MSG_CHECKING("for ExtUtils::Embed to create xs_init")
+ xsf="recctrl/xsinit.h"
+ `rm $xsf 2>/dev/null`;
+
+ `$perlbin -MExtUtils::Embed -e xsinit -- -o $xsf 2>/dev/null`
+ if test -r "$xsf"; then
+ AC_MSG_RESULT(OK)
+ PERL_XS_INIT="xs_init"
+ PERL_XS_INIT_INCLUDE='#include "xsinit.h"'
+ else
+ AC_MSG_RESULT(XS libraries are not going to be available)
+ fi
+
+ ZPERL_LIBS="$LIBS"
+ CFLAGS="$PERL_CFLAGS $CFLAGS"
+ LIBS="$PERL_LIBS $LIBS"
+ AM_CONDITIONAL(perl,true)
+ else
+ AC_DEFINE(HAVE_PERL,0)
+ AC_MSG_RESULT(Not found)
+ fi
+fi