mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-19 12:57:53 +00:00
6d1bcaa2f5
configure.ac now finds how to count the CPUs in a system. Currently the getconf method and sysctl methods are supported. Adding more is easy enough. Signed-off-by: Dan McGregor <dan.mcgregor@usask.ca>
467 lines
15 KiB
Plaintext
467 lines
15 KiB
Plaintext
# -*- Autoconf -*-
|
|
# Process this file with autoconf to produce a configure script.
|
|
|
|
AC_PREREQ([2.67])
|
|
AC_INIT(
|
|
[crosstool-NG],
|
|
[m4_esyscmd_s([git describe --always --dirty])],
|
|
[crossgcc@sourceware.org])
|
|
AC_CONFIG_AUX_DIR([scripts])
|
|
|
|
#--------------------------------------------------------------------
|
|
# A few helper macros
|
|
|
|
# ACX_WITH_DEPRECATED(PROG, VAR)
|
|
# Declare a deprecated --with option: instead of --with-PROG=xxx, must use VAR=xxx
|
|
AC_DEFUN(
|
|
[ACX_WITH_DEPRECATED],
|
|
[AC_ARG_WITH([$1],
|
|
[AS_HELP_STRING([--with-$1=PATH],
|
|
[Deprecated; use $2=PATH instead])],
|
|
[AC_MSG_ERROR([--with-$1=$withval deprecated; use $2=$withval instead])])
|
|
])
|
|
|
|
# Check for required tool
|
|
AC_DEFUN(
|
|
[ACX_CHECK_TOOL_REQ],
|
|
[AC_CHECK_TOOLS([$1], [$2])
|
|
AS_IF(
|
|
[test -z "$$1"],
|
|
[AC_MSG_ERROR([missing required tool: $2])])
|
|
])
|
|
|
|
# Check for required tool, set variable to full pathname
|
|
AC_DEFUN(
|
|
[ACX_PATH_TOOL_REQ],
|
|
[ACX_WITH_DEPRECATED([$3], [$1])
|
|
AC_ARG_VAR([$1], [Specify the full path to GNU $3])
|
|
ACX_CHECK_TOOL_REQ([$1], [$2])
|
|
AS_CASE(
|
|
[$$1],
|
|
[/*],,
|
|
[?*],[AC_MSG_CHECKING([for absolute path to $$1])
|
|
$1=$(which $$1)
|
|
AC_MSG_RESULT([$$1])])])
|
|
|
|
# Check for required program
|
|
AC_DEFUN(
|
|
[ACX_CHECK_PROGS_REQ],
|
|
[AC_CHECK_PROGS([$1], [$2])
|
|
AS_IF(
|
|
[test -z "$$1"],
|
|
[AC_MSG_ERROR([missing required tool: $2])])
|
|
])
|
|
|
|
# Check for path to required program
|
|
AC_DEFUN(
|
|
[ACX_PATH_PROGS_REQ],
|
|
[AC_PATH_PROGS([$1], [$2])
|
|
AS_IF(
|
|
[test -z "$$1"],
|
|
[AC_MSG_ERROR([missing required tool: $2])])
|
|
])
|
|
|
|
# Set the kconfig option
|
|
AC_DEFUN(
|
|
[ACX_SET_KCONFIG_OPTION],
|
|
[AS_IF(
|
|
[test -n "$$1"],
|
|
[kconfig_options="$kconfig_options has_$1=y"],
|
|
[kconfig_options="$kconfig_options has_$1"])
|
|
])
|
|
|
|
# Check if a given program is available with a particular version.
|
|
# ACX_PROG_VERSION(VAR, HELP, PROG, SRCH, VERSION_CHECK[, CONFIG_OPT])
|
|
# Search for PROG under possible names of SRCH. Allow user overrides in variable
|
|
# VAR; display HELP message. Try to find a version that satisfies VERSION_CHECK
|
|
# regexp; if that is achieved, set CONFIG_OPT in the kconfig. Otherwise, settle
|
|
# for any version found.
|
|
# Sets acx_version_VAR_ok to ':' if the version met the criterion, or false otherwise.
|
|
AC_DEFUN(
|
|
[ACX_PROG_VERSION],
|
|
[AS_IF([test -z "$EGREP"],
|
|
[AC_MSG_ERROR([This macro can only be used after checking for EGREP])])
|
|
ACX_WITH_DEPRECATED([$3], [$1])
|
|
AC_ARG_VAR([$1], [Specify the full path to $2])
|
|
acx_version_$1_ok=false
|
|
AC_CACHE_CHECK([for $3], [ac_cv_path_$1],
|
|
[AC_PATH_PROGS_FEATURE_CHECK([$1], [$4],
|
|
[[ver=`$ac_path_$1 --version 2>/dev/null| $EGREP $5`
|
|
test -z "$ac_cv_path_$1" && ac_cv_path_$1=$ac_path_$1
|
|
test -n "$ver" && ac_cv_path_$1="$ac_path_$1" ac_path_$1_found=: acx_version_$1_ok=:]])])
|
|
AS_IF([test -n "$1"],
|
|
[[ver=`$ac_path_$1 --version 2>/dev/null| $EGREP $5`
|
|
test -n "$ver" && acx_version_$1_ok=:]])
|
|
AC_MSG_CHECKING([for $2])
|
|
AS_IF([$acx_version_$1_ok],
|
|
[AC_MSG_RESULT([yes])],
|
|
[AC_MSG_RESULT([no])])
|
|
AC_SUBST([$1], [$ac_cv_path_$1])
|
|
AS_IF([test -n "$6"],
|
|
[AS_IF([$acx_version_$1_ok], [$6=y], [$6=])
|
|
ACX_SET_KCONFIG_OPTION([$6])])
|
|
])
|
|
|
|
# Same as above, but make it a fatal error if the tool is not found at all
|
|
# (i.e. "require any version, prefer version X or newer")
|
|
AC_DEFUN(
|
|
[ACX_PROG_VERSION_REQ_ANY],
|
|
[ACX_PROG_VERSION([$1], [$2], [$3], [$4], [$5], [$6])
|
|
AS_IF([test -z "$$1"],
|
|
[AC_MSG_ERROR([Required tool not found: $3])])
|
|
])
|
|
|
|
# Same, but also require the version check to pass
|
|
# (i.e. "require version X or newer")
|
|
AC_DEFUN(
|
|
[ACX_PROG_VERSION_REQ_STRICT],
|
|
[ACX_PROG_VERSION([$1], [$2], [$3], [$4], [$5], [$6])
|
|
AS_IF([test -z "$$1" || ! $acx_version_$1_ok],
|
|
[AC_MSG_ERROR([Required tool not found: $2])])
|
|
])
|
|
|
|
#--------------------------------------------------------------------
|
|
# Allow dummy --{en,dis}able-{static,shared}
|
|
AC_ARG_ENABLE(
|
|
[local],
|
|
[AS_HELP_STRING(
|
|
[--enable-local],
|
|
[do not install, and use current directory])])
|
|
AC_SUBST([enable_local], [${enable_local:-no}])
|
|
|
|
# FIXME: I don't know why we have this. Will remove after the next
|
|
# release.
|
|
AC_ARG_ENABLE(
|
|
[shared],
|
|
[AS_HELP_STRING(
|
|
[--enable-shared],
|
|
[build shared libraries (deprecated, ignored)])])
|
|
AC_ARG_ENABLE(
|
|
[static],
|
|
[AS_HELP_STRING(
|
|
[--enable-static],
|
|
[build static libraries (deprecated, ignored)])])
|
|
|
|
#---------------------------------------------------------------------
|
|
# Check for --build and --host...
|
|
AC_CANONICAL_BUILD
|
|
AC_CANONICAL_HOST
|
|
# ... but refuse --target
|
|
AS_IF([test -n "$target_alias"],
|
|
AC_MSG_ERROR([--target is not allowed]))
|
|
|
|
# Allow program name tranformation (--program-{prefix,suffix,transform-name})
|
|
AC_ARG_PROGRAM
|
|
|
|
#---------------------------------------------------------------------
|
|
# Initial checks that are usually done first (I don't know why, that's
|
|
# just what I seem to experience...)
|
|
#---------------------------------------------------------------------
|
|
ACX_WITH_DEPRECATED([install], [INSTALL])
|
|
AC_ARG_VAR([INSTALL], [Specify the full path to a BSD-compatible install])
|
|
AC_PROG_INSTALL
|
|
|
|
ACX_WITH_DEPRECATED([grep], [GREP])
|
|
AC_ARG_VAR([GREP], [Specify the full path to GNU grep])
|
|
AC_PROG_GREP
|
|
AC_PROG_EGREP
|
|
AS_IF([test "$EGREP" != "$GREP -E"],
|
|
[AC_MSG_ERROR([egrep is not $GREP -E])])
|
|
|
|
ACX_PROG_VERSION_REQ_STRICT([SED],
|
|
[GNU sed >= 4.0],
|
|
[sed],
|
|
[gsed sed],
|
|
['GNU sed[^0-9]* [4-9]\.'])
|
|
AC_ARG_VAR([SED], [Specify the full path to GNU sed])
|
|
|
|
AC_PROG_LN_S
|
|
|
|
#--------------------------------------------------------------------
|
|
# A bunch of boring tests...
|
|
#--------------------------------------------------------------------
|
|
# Modern GCC/GDB releases require C++ support in the compiler
|
|
AC_PROG_CC
|
|
AC_PROG_CXX
|
|
AS_IF([test -z "$CC" -o -z "$CXX"],
|
|
[AC_MSG_ERROR([no suitable compiler found])])
|
|
AC_PROG_CPP
|
|
|
|
#---------------------------------------------------------------------
|
|
# Check to see if the compiler can link statically
|
|
AC_MSG_CHECKING([if $CC can static link])
|
|
echo "int main() {}" | ${CC} -static -o /dev/null -xc - > /dev/null 2>&1
|
|
static_test=$?
|
|
AS_IF([test $static_test -eq 0],
|
|
[static_link=y
|
|
AC_MSG_RESULT([yes])],
|
|
[test $static_test -ne 0],
|
|
[static_link=
|
|
AC_MSG_RESULT([no])])
|
|
ACX_SET_KCONFIG_OPTION([static_link])
|
|
|
|
AC_PROG_RANLIB
|
|
ACX_PATH_TOOL_REQ([OBJCOPY], [gobjcopy objcopy], [objcopy])
|
|
ACX_PATH_TOOL_REQ([OBJDUMP], [gobjdump objdump], [objdump])
|
|
ACX_PATH_TOOL_REQ([READELF], [greadelf readelf], [readelf])
|
|
ACX_PATH_TOOL_REQ([GPERF], [gperf], [gperf])
|
|
|
|
ACX_CHECK_PROGS_REQ([bison], [bison])
|
|
ACX_CHECK_PROGS_REQ([flex], [flex])
|
|
ACX_CHECK_PROGS_REQ([makeinfo], [makeinfo])
|
|
ACX_CHECK_PROGS_REQ([cut], [cut])
|
|
ACX_CHECK_PROGS_REQ([readlink], [readlink])
|
|
ACX_CHECK_PROGS_REQ([tar], [tar])
|
|
ACX_CHECK_PROGS_REQ([gzip], [gzip])
|
|
ACX_CHECK_PROGS_REQ([bzip2], [bzip2])
|
|
ACX_CHECK_PROGS_REQ([xz], [xz])
|
|
ACX_CHECK_PROGS_REQ([help2man], [help2man])
|
|
|
|
# Not a fatal failure even if we have neither - the tarballs may
|
|
# be provided in a local directory.
|
|
AC_CHECK_PROGS([wget], [wget])
|
|
ACX_SET_KCONFIG_OPTION([wget])
|
|
AC_SUBST([wget])
|
|
|
|
AC_CHECK_PROGS([curl], [curl])
|
|
ACX_SET_KCONFIG_OPTION([curl])
|
|
AC_SUBST([curl])
|
|
|
|
ACX_CHECK_PROGS_REQ([stat], [stat])
|
|
AC_CACHE_CHECK([whether stat takes GNU or BSD format],
|
|
[acx_cv_stat_flavor],
|
|
[touch conftest
|
|
chmod 642 conftest
|
|
attr_bsd=`stat -f '%Lp' conftest 2>/dev/null`
|
|
attr_gnu=`stat -c '%a' conftest 2>/dev/null`
|
|
rm -f conftest
|
|
AS_IF([test "$attr_bsd" = "642"],
|
|
[acx_cv_stat_flavor=BSD],
|
|
[test "$attr_gnu" = "642"],
|
|
[acx_cv_stat_flavor=GNU],
|
|
[AC_MSG_ERROR([cannot determine stat(1) format option])])])
|
|
|
|
# FIXME: support SET_KCONFIG_OPTION with string values? But then
|
|
# again, these checks may be moved into ct-ng script.
|
|
test "$acx_cv_stat_flavor" = "BSD" && stat_flavor_BSD=y
|
|
ACX_SET_KCONFIG_OPTION([stat_flavor_BSD])
|
|
test "$acx_cv_stat_flavor" = "GNU" && stat_flavor_GNU=y
|
|
ACX_SET_KCONFIG_OPTION([stat_flavor_GNU])
|
|
|
|
#Find out how to count CPUs
|
|
AC_CACHE_CHECK([whether to use getconf or sysctl to count CPUs],
|
|
[acx_cv_cpu_count],
|
|
[getconf _NPROCESSORS_ONLN >/dev/null 2>&1 && \
|
|
acx_cv_cpu_count="getconf _NPROCESSORS_ONLN"
|
|
sysctl -n hw.ncpu >/dev/null 2>&1 && \
|
|
acx_cv_cpu_count="sysctl -n hw.ncpu"])
|
|
AC_SUBST(CPU_COUNT, "$acx_cv_cpu_count")
|
|
|
|
#--------------------------------------------------------------------
|
|
# Still boring, but remember the path, now...
|
|
#--------------------------------------------------------------------
|
|
ACX_PATH_TOOL_REQ([PATCH], [gpatch patch], [patch])
|
|
|
|
#--------------------------------------------------------------------
|
|
# And a bunch of less boring tests...
|
|
#--------------------------------------------------------------------
|
|
# We need a bash that is >= 3.1
|
|
ACX_PROG_VERSION_REQ_STRICT([BASH_SHELL],
|
|
[GNU bash >= 3.1],
|
|
[bash],
|
|
[bash],
|
|
['^GNU bash, version (3\.[1-9]|4)'])
|
|
|
|
# We need a awk that *is* GNU awk
|
|
ACX_PROG_VERSION_REQ_STRICT([AWK],
|
|
[GNU awk],
|
|
[awk],
|
|
[gawk awk],
|
|
['^GNU Awk '])
|
|
|
|
# FIXME This checks for tools at the time configure runs. If a tool is later updated
|
|
# to satisfy our version requirement, we still won't be able to see that. Or worse,
|
|
# downgraded/removed. We should check this and update configure.in options right
|
|
# before running kconfig. Our configure should only check for stuff needed to
|
|
# build/install crosstool-ng itself.
|
|
#----------------------------------------
|
|
# Check for GNU make (want 3.81 or above, but will accept as long as any make is found)
|
|
ACX_PROG_VERSION_REQ_ANY([MAKE],
|
|
[GNU make >= 3.81],
|
|
[make],
|
|
[gmake make],
|
|
['^GNU Make (3\.8[1-9]|3\.9[0-9]|[4-9]\.)'],
|
|
[make_3_81_or_newer])
|
|
|
|
# Check other companion tools that we may or may not build
|
|
ACX_PROG_VERSION([LIBTOOL],
|
|
[GNU libtool >= 2.4],
|
|
[libtool],
|
|
[glibtool libtool],
|
|
['\(GNU libtool\) ([3-9]\.|2.[4-9]|2.[1-3][0-9])'],
|
|
[libtool_2_4_or_newer])
|
|
|
|
ACX_PROG_VERSION([LIBTOOLIZE],
|
|
[GNU libtoolize >= 2.4],
|
|
[libtoolize],
|
|
[glibtoolize libtoolize],
|
|
['\(GNU libtool\) ([3-9]\.|2.[4-9]|2.[1-3][0-9])'],
|
|
[libtoolize_2_4_or_newer])
|
|
|
|
ACX_PROG_VERSION([AUTOCONF],
|
|
[GNU autoconf >= 2.65],
|
|
[AUTOCONF],
|
|
[autoconf],
|
|
['\(GNU Autoconf\) ([3-9]\.|2\.[7-9][0-9]|2\.6[5-9])'],
|
|
[autoconf_2_63_or_newer])
|
|
|
|
ACX_PROG_VERSION([AUTORECONF],
|
|
[GNU autoreconf >= 2.63],
|
|
[autoreconf],
|
|
[autoreconf],
|
|
['\(GNU Autoconf\) ([3-9]\.|2\.[7-9][0-9]|2\.6[3-9])'],
|
|
[autoreconf_2_63_or_newer])
|
|
|
|
ACX_PROG_VERSION([AUTOMAKE],
|
|
[GNU automake >= 1.15],
|
|
[automake],
|
|
[automake],
|
|
['\(GNU automake\) ([2-9]\.|1\.[2-9][0-9]|1\.1[5-9])'],
|
|
[automake_1_15_or_newer])
|
|
|
|
ACX_PROG_VERSION([M4],
|
|
[GNU m4 >= 1.4.12],
|
|
[m4],
|
|
[gm4 m4],
|
|
['\(GNU M4\) ([2-9]\.|1\.[5-9]|1\.[1-4][0-9]|1\.4\.[2-9][0-9]|1\.4\.1[2-9])'],
|
|
[gnu_m4_1_4_12_or_newer])
|
|
|
|
#----------------------------------------
|
|
# Gperf 3.1 started generating functions with size_t rather than unsigned int
|
|
AC_MSG_CHECKING([for the type used in gperf declarations])
|
|
echo "#include <string.h>" > conftest.gperf.c
|
|
echo "const char * in_word_set(const char *, GPERF_LEN_TYPE);" >> conftest.gperf.c
|
|
echo foo,bar | ${GPERF} -L ANSI-C >> conftest.gperf.c
|
|
AS_IF([${CC} -c -o /dev/null conftest.gperf.c -DGPERF_LEN_TYPE='size_t' >/dev/null 2>&1],
|
|
[AC_MSG_RESULT([size_t])
|
|
GPERF_LEN_TYPE='size_t'],
|
|
[${CC} -c -o /dev/null conftest.gperf.c -DGPERF_LEN_TYPE='unsigned int' >/dev/null 2>&1],
|
|
[AC_MSG_RESULT([unsigned int])
|
|
GPERF_LEN_TYPE='unsigned int'],
|
|
[AC_MSG_ERROR([unable to determine gperf len type])])
|
|
rm -f conftest.gperf.c
|
|
AC_SUBST([GPERF_LEN_TYPE])
|
|
|
|
#--------------------------------------------------------------------
|
|
# Boring again... But still a bit of work to do...
|
|
#--------------------------------------------------------------------
|
|
AC_SUBST([kconfig_options])
|
|
|
|
#----------------------------------------
|
|
AC_CHECK_PROGS([cvs], [cvs])
|
|
ACX_SET_KCONFIG_OPTION([cvs])
|
|
|
|
#----------------------------------------
|
|
AC_CHECK_PROGS([svn], [svn])
|
|
ACX_SET_KCONFIG_OPTION([svn])
|
|
|
|
AC_CHECK_PROGS([git], [git])
|
|
ACX_SET_KCONFIG_OPTION([git])
|
|
|
|
#--------------------------------------------------------------------
|
|
# Now, for some fun...
|
|
#--------------------------------------------------------------------
|
|
AC_C_INLINE
|
|
AC_HEADER_STDC
|
|
AC_FUNC_MALLOC
|
|
AC_FUNC_REALLOC
|
|
AC_FUNC_ALLOCA
|
|
|
|
#----------------------------------------
|
|
# Check for gettext and libintl for the kconfig frontends
|
|
AC_SUBST([gettext])
|
|
AC_CHECK_HEADERS(
|
|
[libintl.h],
|
|
[ac_ct_gettext_hdr=$ac_header; break])
|
|
AS_IF(
|
|
[test -n "$ac_ct_gettext_hdr"],
|
|
[AC_CHECK_DECL(
|
|
[gettext],
|
|
[gettext=y],,
|
|
[AC_INCLUDES_DEFAULT()
|
|
#include <$ac_ct_gettext_hdr>])])
|
|
SAVE_LIBS=$LIBS
|
|
AC_SEARCH_LIBS(bindtextdomain, intl, [test "$ac_res" = "none required" || INTL_LIBS="${ac_res}"])
|
|
LIBS=$SAVE_LIBS
|
|
AC_SUBST([INTL_LIBS])
|
|
|
|
#----------------------------------------
|
|
# Check for ncurses, for the kconfig frontends
|
|
AC_SUBST([ac_ct_curses_hdr])
|
|
AC_CHECK_HEADERS(
|
|
[ncurses/ncurses.h ncurses/curses.h ncursesw/curses.h ncurses.h curses.h],
|
|
[ac_ct_curses_hdr=$ac_header; break])
|
|
AS_IF(
|
|
[test -z "$ac_ct_curses_hdr"],
|
|
[AC_MSG_ERROR([could not find curses header, required for the kconfig frontends])])
|
|
AC_SEARCH_LIBS(
|
|
[initscr],
|
|
[ncursesw ncurses curses],
|
|
[ac_ct_curses_lib_found=yes; break])
|
|
AS_IF(
|
|
[test -z "$ac_ct_curses_lib_found"],
|
|
[AC_MSG_ERROR([could not find curses library, required for the kconfig frontends])])
|
|
AC_SEARCH_LIBS(
|
|
[tgetent],
|
|
[termcap tinfo ncursesw ncurses curses])
|
|
|
|
#--------------------------------------------------------------------
|
|
# Lastly, take care of crosstool-NG internal values
|
|
#--------------------------------------------------------------------
|
|
# Hey! We need the date! :-)
|
|
AC_SUBST(
|
|
[DATE],
|
|
[$(date +%Y%m%d)])
|
|
|
|
# Decorate the version string if needed
|
|
AS_IF(
|
|
[test -f version.sh -a -x version.sh],
|
|
[V=$(./version.sh "${PACKAGE_VERSION}")])
|
|
AS_IF(
|
|
[test -n "${V}"],
|
|
[PACKAGE_VERSION="${V}"],
|
|
[AS_CASE(
|
|
[${PACKAGE_VERSION}],
|
|
[git|*+git],
|
|
[rev_id="$( git rev-parse --short HEAD )"
|
|
git diff-index --quiet HEAD || rev_id="${rev_id}-dirty"
|
|
PACKAGE_VERSION="${PACKAGE_VERSION}+${rev_id:-unknown-$( date +%Y%m%d.%H%M%S )}"
|
|
])])
|
|
# Arrange to have no / in the directory name, no need to create an
|
|
# arbitrarily deep directory structure
|
|
[PACKAGE_VERSION="$( printf "${PACKAGE_VERSION}\n" |"${SED}" -r -e 's:/+:_:g;' )"]
|
|
|
|
# Handle the local case
|
|
AC_SUBST([sublibdir])
|
|
AC_SUBST([subdocdir])
|
|
AS_IF(
|
|
[test "x$enable_local" = "xyes"],
|
|
[AC_MSG_NOTICE([overiding all of --prefix and the likes, because --enable-local was set])
|
|
prefix=$(pwd)
|
|
exec_prefix="$prefix"
|
|
bindir="$prefix"
|
|
libdir="$prefix"
|
|
sublibdir=""
|
|
docdir="$prefix""/docs"
|
|
subdocdir=""
|
|
datarootdir="$prefix"
|
|
mandir="$docdir"],
|
|
[sublibdir="/\${VERSION}"
|
|
subdocdir="/\${VERSION}"])
|
|
|
|
#--------------------------------------------------------------------
|
|
# Finally, generate the output file(s)
|
|
#--------------------------------------------------------------------
|
|
AC_CONFIG_FILES([Makefile])
|
|
AC_OUTPUT
|