154 lines
4.3 KiB
Plaintext
154 lines
4.3 KiB
Plaintext
dnl This provides configure definitions used by all the newlib
|
|
dnl configure.in files.
|
|
|
|
dnl Basic newlib configury. This calls basic introductory stuff,
|
|
dnl including AM_INIT_AUTOMAKE and AC_CANONICAL_HOST. It also runs
|
|
dnl configure.host. The only argument is the relative path to the top
|
|
dnl newlib directory.
|
|
|
|
AC_DEFUN(NEWLIB_CONFIGURE,
|
|
[
|
|
dnl Default to --enable-multilib
|
|
AC_ARG_ENABLE(multilib,
|
|
[ --enable-multilib build many library versions (default)],
|
|
[case "${enableval}" in
|
|
yes) multilib=yes ;;
|
|
no) multilib=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
|
|
esac], [multilib=yes])dnl
|
|
|
|
dnl Support --enable-target-optspace
|
|
AC_ARG_ENABLE(target-optspace,
|
|
[ --enable-target-optspace optimize for space],
|
|
[case "${enableval}" in
|
|
yes) target_optspace=yes ;;
|
|
no) target_optspace=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for target-optspace option) ;;
|
|
esac], [target_optspace=])dnl
|
|
|
|
dnl Support --enable-malloc-debugging - currently only supported for Cygwin
|
|
AC_ARG_ENABLE(malloc-debugging,
|
|
[ --enable-malloc-debugging indicate malloc debugging requested],
|
|
[case "${enableval}" in
|
|
yes) malloc_debugging=yes ;;
|
|
no) malloc_debugging=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for malloc-debugging option) ;;
|
|
esac], [malloc_debugging=])dnl
|
|
|
|
dnl Support --enable-newlib-mb
|
|
AC_ARG_ENABLE(newlib-mb,
|
|
[ --enable-newlib-mb enable multibyte support],
|
|
[case "${enableval}" in
|
|
yes) newlib_mb=yes ;;
|
|
no) newlib_mb=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for newlib-mb option) ;;
|
|
esac], [newlib_mb=no])dnl
|
|
|
|
dnl Support --disable-newlib-io-float
|
|
AC_ARG_ENABLE(newlib-io-float,
|
|
[ --disable-newlib-io-float disable printf/scanf family float support],
|
|
[case "${enableval}" in
|
|
yes) newlib_io_float=yes ;;
|
|
no) newlib_io_float=no ;;
|
|
*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-float option) ;;
|
|
esac], [newlib_io_float=yes])dnl
|
|
|
|
|
|
dnl We may get other options which we don't document:
|
|
dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
|
|
|
|
test -z "[$]{with_target_subdir}" && with_target_subdir=.
|
|
|
|
if test "[$]{srcdir}" = "."; then
|
|
if test "[$]{with_target_subdir}" != "."; then
|
|
newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
|
|
else
|
|
newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
|
|
fi
|
|
else
|
|
newlib_basedir="[$]{srcdir}/$1"
|
|
fi
|
|
AC_SUBST(newlib_basedir)
|
|
|
|
AC_CANONICAL_SYSTEM
|
|
|
|
AM_INIT_AUTOMAKE(newlib, 1.10.0)
|
|
|
|
# FIXME: We temporarily define our own version of AC_PROG_CC. This is
|
|
# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
|
|
# are probably using a cross compiler, which will not be able to fully
|
|
# link an executable. This should really be fixed in autoconf
|
|
# itself.
|
|
|
|
AC_DEFUN(LIB_AC_PROG_CC,
|
|
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
|
|
AC_CHECK_PROG(CC, gcc, gcc)
|
|
if test -z "$CC"; then
|
|
AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
|
|
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
|
|
fi
|
|
|
|
AC_PROG_CC_GNU
|
|
|
|
if test $ac_cv_prog_gcc = yes; then
|
|
GCC=yes
|
|
dnl Check whether -g works, even if CFLAGS is set, in case the package
|
|
dnl plays around with CFLAGS (such as to build both debugging and
|
|
dnl normal versions of a library), tasteless as that idea is.
|
|
ac_test_CFLAGS="${CFLAGS+set}"
|
|
ac_save_CFLAGS="$CFLAGS"
|
|
CFLAGS=
|
|
AC_PROG_CC_G
|
|
if test "$ac_test_CFLAGS" = set; then
|
|
CFLAGS="$ac_save_CFLAGS"
|
|
elif test $ac_cv_prog_cc_g = yes; then
|
|
CFLAGS="-g -O2"
|
|
else
|
|
CFLAGS="-O2"
|
|
fi
|
|
else
|
|
GCC=
|
|
test "${CFLAGS+set}" = set || CFLAGS="-g"
|
|
fi
|
|
])
|
|
|
|
LIB_AC_PROG_CC
|
|
|
|
AC_CHECK_TOOL(AS, as)
|
|
AC_CHECK_TOOL(AR, ar)
|
|
AC_CHECK_TOOL(RANLIB, ranlib, :)
|
|
|
|
AC_PROG_INSTALL
|
|
|
|
AM_MAINTAINER_MODE
|
|
|
|
# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
|
|
# at least currently, we never actually build a program, so we never
|
|
# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
|
|
# fails, because we are probably configuring with a cross compiler
|
|
# which can't create executables. So we include AC_EXEEXT to keep
|
|
# automake happy, but we don't execute it, since we don't care about
|
|
# the result.
|
|
if false; then
|
|
AC_EXEEXT
|
|
fi
|
|
|
|
. [$]{newlib_basedir}/configure.host
|
|
|
|
newlib_cflags="[$]{newlib_cflags} -fno-builtin"
|
|
|
|
NEWLIB_CFLAGS=${newlib_cflags}
|
|
AC_SUBST(NEWLIB_CFLAGS)
|
|
|
|
LDFLAGS=${ldflags}
|
|
AC_SUBST(LDFLAGS)
|
|
|
|
AM_CONDITIONAL(USE_LIBTOOL, test x[$]{use_libtool} = xyes)
|
|
AC_SUBST(oext)
|
|
AC_SUBST(aext)
|
|
|
|
AC_SUBST(libm_machine_dir)
|
|
AC_SUBST(machine_dir)
|
|
AC_SUBST(sys_dir)
|
|
])
|