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dnl I'd like this to be edited in -*- Autoconf -*- mode...
dnl
# serial 1 LIGHTNING_CONFIGURE_IF_NOT_FOUND
AC_DEFUN([LIGHTNING_CONFIGURE_IF_NOT_FOUND], [
AC_REQUIRE([AC_PROG_LN_S])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_CHECK_HEADER(lightning.h)
AM_CONDITIONAL(LIGHTNING_MAIN, (exit 1))
AM_CONDITIONAL(HAVE_INSTALLED_LIGHTNING, test "$ac_cv_header_lightning_h" = yes)
lightning=
if test "$ac_cv_header_lightning_h" = yes; then
lightning=yes
else
case "$host_cpu" in
i?86) cpu_subdir=i386 ;;
sparc*) cpu_subdir=sparc ;;
powerpc) cpu_subdir=ppc ;;
*) ;;
esac
test -n "$cpu_subdir" && lightning=yes
fi
ifdef([AC_HELP_STRING], [
dnl autoconf 2.50 style
if test -n "$cpu_subdir"; then
AC_CONFIG_LINKS(lightning/asm.h:lightning/$cpu_subdir/asm.h
lightning/core.h:lightning/$cpu_subdir/core.h
lightning/fp.h:lightning/$cpu_subdir/fp.h
lightning/funcs.h:lightning/$cpu_subdir/funcs.h, , [
cpu_subdir=$cpu_subdir
])
fi
], [
dnl autoconf 2.13 style
AC_OUTPUT_COMMANDS([
if test -n "$cpu_subdir"; then
for i in asm fp core funcs; do
echo linking $srcdir/lightning/$cpu_subdir/$i.h to lightning/$i.h
(cd lightning && $LN_S -f $srcdir/$cpu_subdir/$i.h $i.h)
done
fi
], [
LN_S='$LN_S'
cpu_subdir=$cpu_subdir
])
])
if test -n "$lightning"; then
AC_DEFINE(HAVE_LIGHTNING, 1, [Define if GNU lightning can be used])
lightning=
ifelse([$1], , :, [$1])
else
ifelse([$2], , :, [$2])
fi
])dnl
|
