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newlib-cygwin/newlib/libc/configure.ac
Mike Frysinger df5808b771 newlib: drop support for decstation & sunos systems
These targets don't actually cross-compile -- they try to pull some
objects out of the host's /lib/libc.a, /lib/libm.a, and /lib/crt0.o
directly and merge them into newlib's own libraries.  This is hard
to keep working and impossible to test.  Considering the vintage of
such targets, and gcc dropping them many many years ago, drop them
from newlib too.  This will make cleaning up the build a lot easier.
2022-02-15 20:00:58 -05:00

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dnl This is the newlib/libc configure.in file.
dnl Process this file with autoconf to produce a configure script.
AC_INIT([newlib],[NEWLIB_VERSION])
AC_CONFIG_SRCDIR([sys.tex])
dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake.
AC_CONFIG_AUX_DIR(../..)
dnl Support --enable-newlib-io-pos-args used by libc/stdio
AC_ARG_ENABLE(newlib-io-pos-args,
[ --enable-newlib-io-pos-args enable printf-family positional arg support],
[case "${enableval}" in
yes) newlib_io_pos_args=yes ;;
no) newlib_io_pos_args=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-pos-args option) ;;
esac], [newlib_io_pos_args=no])dnl
dnl Support --enable-newlib-nano-malloc used by libc/stdlib
AC_ARG_ENABLE(newlib_nano_malloc,
[ --enable-newlib-nano-malloc Use small-footprint nano-malloc implementation],
[case "${enableval}" in
yes) newlib_nano_malloc=yes ;;
no) newlib_nano_malloc=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-nano-malloc) ;;
esac],[newlib_nano_malloc=])
dnl Support --enable-newlib-nano-formatted-io used by libc/stdio
AC_ARG_ENABLE(newlib_nano_formatted_io,
[ --enable-newlib-nano-formatted-io Use small-footprint nano-formatted-IO implementation],
[case "${enableval}" in
yes) newlib_nano_formatted_io=yes ;;
no) newlib_nano_formatted_io=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-nano-formatted-io) ;;
esac],[newlib_nano_formatted_io=no])
AM_CONDITIONAL(NEWLIB_NANO_FORMATTED_IO, test x$newlib_nano_formatted_io = xyes)
dnl Support --enable-retargetable-locking used by libc/sys
AC_ARG_ENABLE(newlib-retargetable-locking,
[ --enable-newlib-retargetable-locking Allow locking routines to be retargeted at link time],
[case "${enableval}" in
yes) newlib_retargetable_locking=yes ;;
no) newlib_retargetable_lock=no ;;
*) AC_MSG_ERROR(bad value ${enableval} for newlib-retargetable-locking) ;;
esac],[newlib_retargetable_locking=no])
AM_CONDITIONAL(NEWLIB_RETARGETABLE_LOCKING, test x$newlib_retargetable_locking = xyes)
NEWLIB_CONFIGURE(..)
AM_CONDITIONAL(NEWLIB_NANO_MALLOC, test x$newlib_nano_malloc = xyes)
CRT0=
if test "x${have_crt0}" = "xyes"; then
CRT0=sys/${sys_dir}/crt0.o
fi
AC_SUBST(CRT0)
dnl For each directory which we may or may not want, we define a name
dnl for the library and an automake conditional for whether we should
dnl build the library.
LIBC_SIGNAL_LIB=
if test -n "${signal_dir}"; then
LIBC_SIGNAL_LIB=${signal_dir}/lib.a
fi
AC_SUBST(LIBC_SIGNAL_LIB)
AM_CONDITIONAL(HAVE_SIGNAL_DIR, test x${signal_dir} != x)
LIBC_STDIO_LIB=
if test -n "${stdio_dir}"; then
LIBC_STDIO_LIB=${stdio_dir}/lib.a
fi
AC_SUBST(LIBC_STDIO_LIB)
AM_CONDITIONAL(HAVE_STDIO_DIR, test x${stdio_dir} != x)
LIBC_STDIO64_LIB=
if test -n "${stdio64_dir}"; then
LIBC_STDIO64_LIB=${stdio64_dir}/lib.a
fi
AC_SUBST(LIBC_STDIO64_LIB)
AM_CONDITIONAL(HAVE_STDIO64_DIR, test x${stdio64_dir} != x)
LIBC_POSIX_LIB=
if test -n "${posix_dir}"; then
LIBC_POSIX_LIB=${posix_dir}/lib.a
fi
AC_SUBST(LIBC_POSIX_LIB)
AM_CONDITIONAL(HAVE_POSIX_DIR, test x${posix_dir} != x)
LIBC_XDR_LIB=
if test -n "${xdr_dir}"; then
LIBC_XDR_LIB=${xdr_dir}/lib.a
fi
AC_SUBST(LIBC_XDR_LIB)
AM_CONDITIONAL(HAVE_XDR_DIR, test x${xdr_dir} != x)
LIBC_SYSCALL_LIB=
if test -n "${syscall_dir}"; then
LIBC_SYSCALL_LIB=${syscall_dir}/lib.a
fi
AC_SUBST(LIBC_SYSCALL_LIB)
AM_CONDITIONAL(HAVE_SYSCALL_DIR, test x${syscall_dir} != x)
LIBC_UNIX_LIB=
if test -n "${unix_dir}"; then
LIBC_UNIX_LIB=${unix_dir}/lib.a
fi
AC_SUBST(LIBC_UNIX_LIB)
AM_CONDITIONAL(HAVE_UNIX_DIR, test x${unix_dir} != x)
dnl We always recur into sys and machine, and let them decide what to
dnl do. However, we do need to know whether they will produce a library.
LIBC_SYS_LIB=
if test -n "${sys_dir}"; then
case ${sys_dir} in
a29khif) AC_CONFIG_FILES([sys/a29khif/Makefile]) ;;
amdgcn) AC_CONFIG_FILES([sys/amdgcn/Makefile]) ;;
arm) AC_CONFIG_FILES([sys/arm/Makefile]) ;;
d10v) AC_CONFIG_FILES([sys/d10v/Makefile]) ;;
epiphany) AC_CONFIG_FILES([sys/epiphany/Makefile]) ;;
h8300hms) AC_CONFIG_FILES([sys/h8300hms/Makefile]) ;;
h8500hms) AC_CONFIG_FILES([sys/h8500hms/Makefile]) ;;
m88kbug) AC_CONFIG_FILES([sys/m88kbug/Makefile]) ;;
mmixware) AC_CONFIG_FILES([sys/mmixware/Makefile]) ;;
netware) AC_CONFIG_FILES([sys/netware/Makefile]) ;;
or1k) AC_CONFIG_FILES([sys/or1k/Makefile]) ;;
phoenix) AC_CONFIG_FILES([sys/phoenix/Makefile]) ;;
rdos) AC_CONFIG_FILES([sys/rdos/Makefile]) ;;
rtems) AC_CONFIG_FILES([sys/rtems/Makefile]) ;;
sh) AC_CONFIG_FILES([sys/sh/Makefile]) ;;
sysmec) AC_CONFIG_FILES([sys/sysmec/Makefile]) ;;
sysnec810) AC_CONFIG_FILES([sys/sysnec810/Makefile]) ;;
sysnecv850) AC_CONFIG_FILES([sys/sysnecv850/Makefile]) ;;
sysvi386) AC_CONFIG_FILES([sys/sysvi386/Makefile]) ;;
sysvnecv70) AC_CONFIG_FILES([sys/sysvnecv70/Makefile]) ;;
tic80) AC_CONFIG_FILES([sys/tic80/Makefile]) ;;
tirtos) AC_CONFIG_FILES([sys/tirtos/Makefile]) ;;
w65) AC_CONFIG_FILES([sys/w65/Makefile]) ;;
z8ksim) AC_CONFIG_FILES([sys/z8ksim/Makefile]) ;;
*) AC_MSG_ERROR([unsupported sys_dir "${sys_dir}"]) ;;
esac
SYS_DIR=sys/${sys_dir}
LIBC_SYS_LIB=${SYS_DIR}/lib.a
fi
AC_SUBST(SYS_DIR)
AM_CONDITIONAL(HAVE_SYS_DIR, test x${sys_dir} != x)
AC_SUBST(LIBC_SYS_LIB)
AC_SUBST(sys_dir)
AC_TYPE_LONG_DOUBLE
AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$ac_cv_type_long_double" = x"yes")
dnl iconv library will be compiled if --enable-newlib-iconv option is enabled
AM_CONDITIONAL(ENABLE_NEWLIB_ICONV, test x${newlib_iconv} != x)
dnl We have to include these unconditionally since machines might want to use
dnl AM_CONDITIONAL in their subdirs.
m4_include([machine/nds32/acinclude.m4])
m4_include([machine/powerpc/acinclude.m4])
m4_include([machine/sh/acinclude.m4])
m4_include([machine/spu/acinclude.m4])
m4_include([sys/phoenix/acinclude.m4])
LIBC_MACHINE_LIB=
if test -n "${machine_dir}"; then
case ${machine_dir} in
a29k) AC_CONFIG_FILES([machine/a29k/Makefile]) ;;
aarch64) AC_CONFIG_FILES([machine/aarch64/Makefile]) ;;
amdgcn) AC_CONFIG_FILES([machine/amdgcn/Makefile]) ;;
arc) AC_CONFIG_FILES([machine/arc/Makefile]) ;;
arm) AC_CONFIG_FILES([machine/arm/Makefile]) ;;
bfin) AC_CONFIG_FILES([machine/bfin/Makefile]) ;;
cr16) AC_CONFIG_FILES([machine/cr16/Makefile]) ;;
cris) AC_CONFIG_FILES([machine/cris/Makefile]) ;;
crx) AC_CONFIG_FILES([machine/crx/Makefile]) ;;
csky) AC_CONFIG_FILES([machine/csky/Makefile]) ;;
d10v) AC_CONFIG_FILES([machine/d10v/Makefile]) ;;
d30v) AC_CONFIG_FILES([machine/d30v/Makefile]) ;;
epiphany) AC_CONFIG_FILES([machine/epiphany/Makefile]) ;;
fr30) AC_CONFIG_FILES([machine/fr30/Makefile]) ;;
frv) AC_CONFIG_FILES([machine/frv/Makefile]) ;;
ft32) AC_CONFIG_FILES([machine/ft32/Makefile]) ;;
h8300) AC_CONFIG_FILES([machine/h8300/Makefile]) ;;
h8500) AC_CONFIG_FILES([machine/h8500/Makefile]) ;;
hppa) AC_CONFIG_FILES([machine/hppa/Makefile]) ;;
i386) AC_CONFIG_FILES([machine/i386/Makefile]) ;;
i960) AC_CONFIG_FILES([machine/i960/Makefile]) ;;
iq2000) AC_CONFIG_FILES([machine/iq2000/Makefile]) ;;
lm32) AC_CONFIG_FILES([machine/lm32/Makefile]) ;;
m32c) AC_CONFIG_FILES([machine/m32c/Makefile]) ;;
m32r) AC_CONFIG_FILES([machine/m32r/Makefile]) ;;
m68hc11) AC_CONFIG_FILES([machine/m68hc11/Makefile]) ;;
m68k) AC_CONFIG_FILES([machine/m68k/Makefile]) ;;
m88k) AC_CONFIG_FILES([machine/m88k/Makefile]) ;;
mep) AC_CONFIG_FILES([machine/mep/Makefile]) ;;
microblaze) AC_CONFIG_FILES([machine/microblaze/Makefile]) ;;
mips) AC_CONFIG_FILES([machine/mips/Makefile]) ;;
riscv) AC_CONFIG_FILES([machine/riscv/Makefile]) ;;
mn10200) AC_CONFIG_FILES([machine/mn10200/Makefile]) ;;
mn10300) AC_CONFIG_FILES([machine/mn10300/Makefile]) ;;
moxie) AC_CONFIG_FILES([machine/moxie/Makefile]) ;;
msp430) AC_CONFIG_FILES([machine/msp430/Makefile]) ;;
mt) AC_CONFIG_FILES([machine/mt/Makefile]) ;;
nds32) AC_CONFIG_FILES([machine/nds32/Makefile]) ;;
necv70) AC_CONFIG_FILES([machine/necv70/Makefile]) ;;
nios2) AC_CONFIG_FILES([machine/nios2/Makefile]) ;;
nvptx) AC_CONFIG_FILES([machine/nvptx/Makefile]) ;;
or1k) AC_CONFIG_FILES([machine/or1k/Makefile]) ;;
powerpc) AC_CONFIG_FILES([machine/powerpc/Makefile]) ;;
pru) AC_CONFIG_FILES([machine/pru/Makefile]) ;;
rl78) AC_CONFIG_FILES([machine/rl78/Makefile]) ;;
rx) AC_CONFIG_FILES([machine/rx/Makefile]) ;;
sh) AC_CONFIG_FILES([machine/sh/Makefile]) ;;
sparc) AC_CONFIG_FILES([machine/sparc/Makefile]) ;;
spu) AC_CONFIG_FILES([machine/spu/Makefile]) ;;
tic4x) AC_CONFIG_FILES([machine/tic4x/Makefile]) ;;
tic6x) AC_CONFIG_FILES([machine/tic6x/Makefile]) ;;
tic80) AC_CONFIG_FILES([machine/tic80/Makefile]) ;;
v850) AC_CONFIG_FILES([machine/v850/Makefile]) ;;
visium) AC_CONFIG_FILES([machine/visium/Makefile]) ;;
w65) AC_CONFIG_FILES([machine/w65/Makefile]) ;;
x86_64) AC_CONFIG_FILES([machine/x86_64/Makefile]) ;;
xc16x) AC_CONFIG_FILES([machine/xc16x/Makefile]) ;;
xstormy16) AC_CONFIG_FILES([machine/xstormy16/Makefile]) ;;
z8k) AC_CONFIG_FILES([machine/z8k/Makefile]) ;;
*) AC_MSG_ERROR([unsupported machine_dir "${machine_dir}"]) ;;
esac
LIBC_MACHINE_DIR=machine/${machine_dir}
LIBC_MACHINE_LIB=${LIBC_MACHINE_DIR}/lib.a
fi
AM_CONDITIONAL(HAVE_LIBC_MACHINE_DIR, test "x${LIBC_MACHINE_DIR}" != x)
AC_SUBST(LIBC_MACHINE_DIR)
AC_SUBST(LIBC_MACHINE_LIB)
AC_SUBST(machine_dir)
AC_SUBST(shared_machine_dir)
AM_CONDITIONAL(MACH_ADD_SETJMP, test "x$mach_add_setjmp" = "xtrue")
AC_CONFIG_FILES([Makefile argz/Makefile ctype/Makefile errno/Makefile locale/Makefile misc/Makefile reent/Makefile search/Makefile stdio/Makefile stdio64/Makefile stdlib/Makefile string/Makefile time/Makefile posix/Makefile signal/Makefile syscalls/Makefile unix/Makefile iconv/Makefile iconv/ces/Makefile iconv/ccs/Makefile iconv/ccs/binary/Makefile iconv/lib/Makefile ssp/Makefile xdr/Makefile])
AC_OUTPUT