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dnl Copyright (C) 2005-2010 IOhannes m zmölnig
dnl This file is free software; IOhannes m zmölnig
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
# PD_CHECK_UNIVERSAL([VARIABLE-NAME], [ACTION-IF-SUCCESS], [ACTION-IF-NO-SUCCESS])
# will enable the "--enable-universal=<ARCHS>" flag
# if <ARCH> is "yes", platform defaults are used
# the system tries to build a test program with the archs, on succes it calls ACTION-IF-SUCCESS, and ACTION-IF-NO-SUCCESS otherwise
# on success it will also add the flags to:
# [VARIABLE-NAME]_CFLAGS will hold a list of cflags to compile for all requested archs
# [VARIABLE-NAME]_LDFLAGS will hold a list of ldflags to link for all requested archs
AC_DEFUN([PD_CHECK_UNIVERSAL],
[
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_ARG_ENABLE(universal,
AS_HELP_STRING([--enable-universal=<ARCHS>],
[build an Apple Multi Architecture Binary (MAB); ARCHS is a comma-delimited list of architectures for which to build; if ARCHS is omitted, then the package will be built for all architectures supported by the platform (e.g. "ppc,i386" for MacOS/X and Darwin); if this option is disabled or omitted entirely, then the package will be built only for the target platform]),
[universal_binary=$enableval], [universal_binary=no])
_pd_universal_success="no"
if test "$universal_binary" != no; then
AC_MSG_CHECKING([target architectures])
# Respect TARGET_ARCHS setting from environment if available.
if test -z "$TARGET_ARCHS"; then
# Respect ARCH given to --enable-universal-binary if present.
if test "$universal_binary" != yes; then
TARGET_ARCHS=$(echo "$universal_binary" | tr ',' ' ')
else
# Choose a default set of architectures based upon platform.
case $host in
*darwin*)
TARGET_ARCHS="ppc i386"
;;
*)
TARGET_ARCHS=""
;;
esac
fi
fi
AC_MSG_RESULT([$TARGET_ARCHS])
# /usr/lib/arch_tool -archify_list $TARGET_ARCHS
_pd_universal=""
for archs in $TARGET_ARCHS
do
_pd_universal="$_pd_universal -arch $archs"
done
dnl run checks whether the compiler linker like this...
if test "x$_pd_universal" != "x"; then
tmp_arch_cflags="$CFLAGS"
tmp_arch_ldflags="$LDFLAGS"
CFLAGS="$CFLAGS $_pd_universal"
LDFLAGS="$LDFLAGS $_universal"
AC_TRY_LINK([], [return 0;], [_pd_universal_success="yes"], [_pd_universal_success="no"])
CFLAGS="$tmp_arch_cflags"
LDFLAGS="$tmp_arch_ldflags"
fi
fi
if test "x$_pd_universal_success" = "xyes"; then
[$2]
$1[]CFLAGS="$[]$1[]CFLAGS $_pd_universal"
$1[]LDFLAGS="$[]$1[]LDFLAGS $_pd_universal"
case $host in
*darwin*)
EXTENSION=d_fat
;;
esac
else
:
[$3]
fi
AC_SUBST($1[]CFLAGS)
AC_SUBST($1[]LDFLAGS)
])# GEM_CHECK_UNIVERSAL
|
