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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [acinclude.m4] - Blame information for rev 207

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Line No. Rev Author Line
1 207 jeremybenn
dnl This provides configure definitions used by all the newlib
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dnl configure.in files.
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AC_DEFUN([DEF_NEWLIB_VERSION],
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m4_define([NEWLIB_VERSION],[1.18.0]))
6
 
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dnl Basic newlib configury.  This calls basic introductory stuff,
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dnl including AM_INIT_AUTOMAKE and AC_CANONICAL_HOST.  It also runs
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dnl configure.host.  The only argument is the relative path to the top
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dnl newlib directory.
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AC_DEFUN([NEWLIB_CONFIGURE],
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[AC_REQUIRE([DEF_NEWLIB_VERSION])
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dnl Default to --enable-multilib
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AC_ARG_ENABLE(multilib,
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[  --enable-multilib         build many library versions (default)],
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[case "${enableval}" in
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  yes) multilib=yes ;;
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  no)  multilib=no ;;
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  *)   AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
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 esac], [multilib=yes])dnl
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dnl Support --enable-target-optspace
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AC_ARG_ENABLE(target-optspace,
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[  --enable-target-optspace  optimize for space],
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[case "${enableval}" in
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  yes) target_optspace=yes ;;
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  no)  target_optspace=no ;;
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  *)   AC_MSG_ERROR(bad value ${enableval} for target-optspace option) ;;
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 esac], [target_optspace=])dnl
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dnl Support --enable-malloc-debugging - currently only supported for Cygwin
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AC_ARG_ENABLE(malloc-debugging,
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[  --enable-malloc-debugging indicate malloc debugging requested],
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[case "${enableval}" in
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  yes) malloc_debugging=yes ;;
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  no)  malloc_debugging=no ;;
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  *)   AC_MSG_ERROR(bad value ${enableval} for malloc-debugging option) ;;
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 esac], [malloc_debugging=])dnl
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dnl Support --enable-newlib-multithread
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AC_ARG_ENABLE(newlib-multithread,
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[  --enable-newlib-multithread        enable support for multiple threads],
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[case "${enableval}" in
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  yes) newlib_multithread=yes ;;
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  no)  newlib_multithread=no ;;
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  *)   AC_MSG_ERROR(bad value ${enableval} for newlib-multithread option) ;;
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 esac], [newlib_multithread=yes])dnl
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dnl Support --enable-newlib-iconv
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AC_ARG_ENABLE(newlib-iconv,
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[  --enable-newlib-iconv     enable iconv library support],
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[if test "${newlib_iconv+set}" != set; then
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   case "${enableval}" in
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     yes) newlib_iconv=yes ;;
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     no)  newlib_iconv=no ;;
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     *)   AC_MSG_ERROR(bad value ${enableval} for newlib-iconv option) ;;
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   esac
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 fi], [newlib_iconv=${newlib_iconv}])dnl
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dnl Support --enable-newlib-elix-level
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AC_ARG_ENABLE(newlib-elix-level,
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[  --enable-newlib-elix-level         supply desired elix library level (1-4)],
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[case "${enableval}" in
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  0)   newlib_elix_level=0 ;;
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  1)   newlib_elix_level=1 ;;
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  2)   newlib_elix_level=2 ;;
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  3)   newlib_elix_level=3 ;;
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  4)   newlib_elix_level=4 ;;
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  *)   AC_MSG_ERROR(bad value ${enableval} for newlib-elix-level option) ;;
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 esac], [newlib_elix_level=0])dnl
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dnl Support --disable-newlib-io-float
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AC_ARG_ENABLE(newlib-io-float,
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[  --disable-newlib-io-float disable printf/scanf family float support],
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[case "${enableval}" in
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  yes) newlib_io_float=yes ;;
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  no)  newlib_io_float=no ;;
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  *)   AC_MSG_ERROR(bad value ${enableval} for newlib-io-float option) ;;
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 esac], [newlib_io_float=yes])dnl
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dnl Support --disable-newlib-supplied-syscalls
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AC_ARG_ENABLE(newlib-supplied-syscalls,
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[  --disable-newlib-supplied-syscalls disable newlib from supplying syscalls],
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[case "${enableval}" in
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  yes) newlib_may_supply_syscalls=yes ;;
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  no)  newlib_may_supply_syscalls=no ;;
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  *)   AC_MSG_ERROR(bad value ${enableval} for newlib-supplied-syscalls option) ;;
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 esac], [newlib_may_supply_syscalls=yes])dnl
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AM_CONDITIONAL(MAY_SUPPLY_SYSCALLS, test x[$]{newlib_may_supply_syscalls} = xyes)
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dnl We may get other options which we don't document:
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dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
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test -z "[$]{with_target_subdir}" && with_target_subdir=.
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if test "[$]{srcdir}" = "."; then
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  if test "[$]{with_target_subdir}" != "."; then
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    newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
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  else
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    newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
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  fi
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else
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  newlib_basedir="[$]{srcdir}/$1"
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fi
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AC_SUBST(newlib_basedir)
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AC_CANONICAL_HOST
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AM_INIT_AUTOMAKE([cygnus no-define 1.9.5])
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# FIXME: We temporarily define our own version of AC_PROG_CC.  This is
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# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
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# are probably using a cross compiler, which will not be able to fully
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# link an executable.  This should really be fixed in autoconf
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# itself.
118
 
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AC_DEFUN([LIB_AC_PROG_CC_GNU],
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[AC_CACHE_CHECK(whether we are using GNU C, ac_cv_prog_gcc,
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[dnl The semicolon is to pacify NeXT's syntax-checking cpp.
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cat > conftest.c <<EOF
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#ifdef __GNUC__
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  yes;
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#endif
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EOF
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if AC_TRY_COMMAND(${CC-cc} -E conftest.c) | egrep yes >/dev/null 2>&1; then
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  ac_cv_prog_gcc=yes
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else
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  ac_cv_prog_gcc=no
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fi])])
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AC_DEFUN([LIB_AM_PROG_AS],
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[# By default we simply use the C compiler to build assembly code.
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AC_REQUIRE([LIB_AC_PROG_CC])
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test "${CCAS+set}" = set || CCAS=$CC
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test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
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AC_ARG_VAR([CCAS],      [assembler compiler command (defaults to CC)])
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AC_ARG_VAR([CCASFLAGS], [assembler compiler flags (defaults to CFLAGS)])
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])
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AC_DEFUN([LIB_AC_PROG_CC],
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[AC_BEFORE([$0], [AC_PROG_CPP])dnl
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AC_CHECK_PROG(CC, gcc, gcc)
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_AM_DEPENDENCIES(CC)
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if test -z "$CC"; then
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  AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
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  test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
149
fi
150
 
151
LIB_AC_PROG_CC_GNU
152
 
153
if test $ac_cv_prog_gcc = yes; then
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  GCC=yes
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dnl Check whether -g works, even if CFLAGS is set, in case the package
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dnl plays around with CFLAGS (such as to build both debugging and
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dnl normal versions of a library), tasteless as that idea is.
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  ac_test_CFLAGS="${CFLAGS+set}"
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  ac_save_CFLAGS="$CFLAGS"
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  _AC_PROG_CC_G
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  if test "$ac_test_CFLAGS" = set; then
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    CFLAGS="$ac_save_CFLAGS"
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  elif test $ac_cv_prog_cc_g = yes; then
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    CFLAGS="-g -O2"
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  else
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    CFLAGS="-O2"
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  fi
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else
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  GCC=
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  test "${CFLAGS+set}" = set || CFLAGS="-g"
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fi
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])
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174
LIB_AC_PROG_CC
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AC_CHECK_TOOL(AS, as)
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AC_CHECK_TOOL(AR, ar)
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AC_CHECK_TOOL(RANLIB, ranlib, :)
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AC_CHECK_TOOL(READELF, readelf, :)
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AC_PROG_INSTALL
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183
# Hack to ensure that INSTALL won't be set to "../" with autoconf 2.13.  */
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ac_given_INSTALL=$INSTALL
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AM_MAINTAINER_MODE
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LIB_AM_PROG_AS
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# We need AC_EXEEXT to keep automake happy in cygnus mode.  However,
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# at least currently, we never actually build a program, so we never
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# need to use $(EXEEXT).  Moreover, the test for EXEEXT normally
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# fails, because we are probably configuring with a cross compiler
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# which can't create executables.  So we include AC_EXEEXT to keep
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# automake happy, but we don't execute it, since we don't care about
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# the result.
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if false; then
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  AC_EXEEXT
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  dummy_var=1
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fi
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201
. [$]{newlib_basedir}/configure.host
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203
newlib_cflags="[$]{newlib_cflags} -fno-builtin"
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205
NEWLIB_CFLAGS=${newlib_cflags}
206
AC_SUBST(NEWLIB_CFLAGS)
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208
LDFLAGS=${ldflags}
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AC_SUBST(LDFLAGS)
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211
AM_CONDITIONAL(ELIX_LEVEL_0, test x[$]{newlib_elix_level} = x0)
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AM_CONDITIONAL(ELIX_LEVEL_1, test x[$]{newlib_elix_level} = x1)
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AM_CONDITIONAL(ELIX_LEVEL_2, test x[$]{newlib_elix_level} = x2)
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AM_CONDITIONAL(ELIX_LEVEL_3, test x[$]{newlib_elix_level} = x3)
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AM_CONDITIONAL(ELIX_LEVEL_4, test x[$]{newlib_elix_level} = x4)
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AM_CONDITIONAL(USE_LIBTOOL, test x[$]{use_libtool} = xyes)
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219
# Hard-code OBJEXT.  Normally it is set by AC_OBJEXT, but we
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# use oext, which is set in configure.host based on the target platform.
221
OBJEXT=${oext}
222
 
223
AC_SUBST(OBJEXT)
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AC_SUBST(oext)
225
AC_SUBST(aext)
226
AC_SUBST(lpfx)
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AC_SUBST(libm_machine_dir)
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AC_SUBST(machine_dir)
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AC_SUBST(sys_dir)
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])

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