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