mirror of
https://github.com/crosstool-ng/crosstool-ng.git
synced 2024-12-19 04:47:52 +00:00
439cab379e
Some software starts to adopt xz-only distribution (strace, gcc-linaro, ...). Better that than deal with cryptic errors like "cannot find strace-.tar.bz2". Signed-off-by: Alexey Neyman <stilor@att.net>
458 lines
15 KiB
Plaintext
458 lines
15 KiB
Plaintext
# -*- Autoconf -*-
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# Process this file with autoconf to produce a configure script.
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AC_PREREQ([2.67])
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AC_INIT(
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[crosstool-NG],
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[m4_esyscmd_s([git describe --always --dirty])],
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[crossgcc@sourceware.org])
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AC_CONFIG_AUX_DIR([scripts])
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#--------------------------------------------------------------------
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# A few helper macros
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# ACX_WITH_DEPRECATED(PROG, VAR)
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# Declare a deprecated --with option: instead of --with-PROG=xxx, must use VAR=xxx
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AC_DEFUN(
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[ACX_WITH_DEPRECATED],
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[AC_ARG_WITH([$1],
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[AS_HELP_STRING([--with-$1=PATH],
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[Deprecated; use $2=PATH instead])],
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[AC_MSG_ERROR([--with-$1=$withval deprecated; use $2=$withval instead])])
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])
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# Check for required tool
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AC_DEFUN(
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[ACX_CHECK_TOOL_REQ],
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[AC_CHECK_TOOLS([$1], [$2])
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AS_IF(
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[test -z "$$1"],
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[AC_MSG_ERROR([missing required tool: $2])])
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])
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# Check for required tool, set variable to full pathname
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AC_DEFUN(
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[ACX_PATH_TOOL_REQ],
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[ACX_WITH_DEPRECATED([$3], [$1])
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AC_ARG_VAR([$1], [Specify the full path to GNU $3])
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ACX_CHECK_TOOL_REQ([$1], [$2])
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AS_CASE(
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[$$1],
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[/*],,
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[?*],[AC_MSG_CHECKING([for absolute path to $$1])
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$1=$(which $$1)
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AC_MSG_RESULT([$$1])])])
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# Check for required program
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AC_DEFUN(
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[ACX_CHECK_PROGS_REQ],
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[AC_CHECK_PROGS([$1], [$2])
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AS_IF(
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[test -z "$$1"],
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[AC_MSG_ERROR([missing required tool: $2])])
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])
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# Check for path to required program
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AC_DEFUN(
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[ACX_PATH_PROGS_REQ],
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[AC_PATH_PROGS([$1], [$2])
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AS_IF(
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[test -z "$$1"],
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[AC_MSG_ERROR([missing required tool: $2])])
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])
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# Set the kconfig option
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AC_DEFUN(
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[ACX_SET_KCONFIG_OPTION],
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[AS_IF(
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[test -n "$$1"],
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[kconfig_options="$kconfig_options has_$1=y"],
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[kconfig_options="$kconfig_options has_$1"])
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])
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# Check if a given program is available with a particular version.
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# ACX_PROG_VERSION(VAR, HELP, PROG, SRCH, VERSION_CHECK[, CONFIG_OPT])
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# Search for PROG under possible names of SRCH. Allow user overrides in variable
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# VAR; display HELP message. Try to find a version that satisfies VERSION_CHECK
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# regexp; if that is achieved, set CONFIG_OPT in the kconfig. Otherwise, settle
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# for any version found.
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# Sets acx_version_VAR_ok to ':' if the version met the criterion, or false otherwise.
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AC_DEFUN(
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[ACX_PROG_VERSION],
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[AS_IF([test -z "$EGREP"],
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[AC_MSG_ERROR([This macro can only be used after checking for EGREP])])
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ACX_WITH_DEPRECATED([$3], [$1])
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AC_ARG_VAR([$1], [Specify the full path to $2])
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acx_version_$1_ok=false
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AC_CACHE_CHECK([for $3], [ac_cv_path_$1],
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[AC_PATH_PROGS_FEATURE_CHECK([$1], [$4],
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[[ver=`$ac_path_$1 --version 2>/dev/null| $EGREP $5`
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test -z "$ac_cv_path_$1" && ac_cv_path_$1=$ac_path_$1
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test -n "$ver" && ac_cv_path_$1="$ac_path_$1" ac_path_$1_found=: acx_version_$1_ok=:]])])
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AS_IF([test -n "$1"],
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[[ver=`$ac_path_$1 --version 2>/dev/null| $EGREP $5`
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test -n "$ver" && acx_version_$1_ok=:]])
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AC_MSG_CHECKING([for $2])
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AS_IF([$acx_version_$1_ok],
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[AC_MSG_RESULT([yes])],
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[AC_MSG_RESULT([no])])
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AC_SUBST([$1], [$ac_cv_path_$1])
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AS_IF([test -n "$6"],
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[AS_IF([$acx_version_$1_ok], [$6=y], [$6=])
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ACX_SET_KCONFIG_OPTION([$6])])
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])
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# Same as above, but make it a fatal error if the tool is not found at all
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# (i.e. "require any version, prefer version X or newer")
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AC_DEFUN(
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[ACX_PROG_VERSION_REQ_ANY],
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[ACX_PROG_VERSION([$1], [$2], [$3], [$4], [$5], [$6])
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AS_IF([test -z "$$1"],
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[AC_MSG_ERROR([Required tool not found: $3])])
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])
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# Same, but also require the version check to pass
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# (i.e. "require version X or newer")
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AC_DEFUN(
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[ACX_PROG_VERSION_REQ_STRICT],
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[ACX_PROG_VERSION([$1], [$2], [$3], [$4], [$5], [$6])
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AS_IF([test -z "$$1" || ! $acx_version_$1_ok],
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[AC_MSG_ERROR([Required tool not found: $2])])
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])
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#--------------------------------------------------------------------
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# Allow dummy --{en,dis}able-{static,shared}
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AC_ARG_ENABLE(
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[local],
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[AS_HELP_STRING(
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[--enable-local],
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[do not install, and use current directory])])
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AC_SUBST([enable_local], [${enable_local:-no}])
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# FIXME: I don't know why we have this. Will remove after the next
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# release.
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AC_ARG_ENABLE(
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[shared],
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[AS_HELP_STRING(
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[--enable-shared],
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[build shared libraries (deprecated, ignored)])])
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AC_ARG_ENABLE(
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[static],
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[AS_HELP_STRING(
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[--enable-static],
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[build static libraries (deprecated, ignored)])])
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#---------------------------------------------------------------------
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# Check for --build and --host...
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AC_CANONICAL_BUILD
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AC_CANONICAL_HOST
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# ... but refuse --target
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AS_IF([test -n "$target_alias"],
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AC_MSG_ERROR([--target is not allowed]))
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# Allow program name tranformation (--program-{prefix,suffix,transform-name})
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AC_ARG_PROGRAM
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#---------------------------------------------------------------------
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# Initial checks that are usually done first (I don't know why, that's
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# just what I seem to experience...)
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#---------------------------------------------------------------------
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ACX_WITH_DEPRECATED([install], [INSTALL])
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AC_ARG_VAR([INSTALL], [Specify the full path to a BSD-compatible install])
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AC_PROG_INSTALL
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ACX_WITH_DEPRECATED([grep], [GREP])
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AC_ARG_VAR([GREP], [Specify the full path to GNU grep])
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AC_PROG_GREP
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AC_PROG_EGREP
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AS_IF([test "$EGREP" != "$GREP -E"],
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[AC_MSG_ERROR([egrep is not $GREP -E])])
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ACX_PROG_VERSION_REQ_STRICT([SED],
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[GNU sed >= 4.0],
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[sed],
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[gsed sed],
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['GNU sed[^0-9]* [4-9]\.'])
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AC_ARG_VAR([SED], [Specify the full path to GNU sed])
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AC_PROG_LN_S
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#--------------------------------------------------------------------
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# A bunch of boring tests...
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#--------------------------------------------------------------------
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# Modern GCC/GDB releases require C++ support in the compiler
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AC_PROG_CC
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AC_PROG_CXX
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AS_IF([test -z "$CC" -o -z "$CXX"],
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[AC_MSG_ERROR([no suitable compiler found])])
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AC_PROG_CPP
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#---------------------------------------------------------------------
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# Check to see if the compiler can link statically
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AC_MSG_CHECKING([if $CC can static link])
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echo "int main() {}" | ${CC} -static -o /dev/null -xc - > /dev/null 2>&1
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static_test=$?
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AS_IF([test $static_test -eq 0],
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[static_link=y
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AC_MSG_RESULT([yes])],
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[test $static_test -ne 0],
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[static_link=
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AC_MSG_RESULT([no])])
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ACX_SET_KCONFIG_OPTION([static_link])
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AC_PROG_RANLIB
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ACX_PATH_TOOL_REQ([OBJCOPY], [gobjcopy objcopy], [objcopy])
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ACX_PATH_TOOL_REQ([OBJDUMP], [gobjdump objdump], [objdump])
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ACX_PATH_TOOL_REQ([READELF], [greadelf readelf], [readelf])
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ACX_PATH_TOOL_REQ([GPERF], [gperf], [gperf])
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ACX_CHECK_PROGS_REQ([bison], [bison])
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ACX_CHECK_PROGS_REQ([flex], [flex])
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ACX_CHECK_PROGS_REQ([makeinfo], [makeinfo])
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ACX_CHECK_PROGS_REQ([cut], [cut])
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ACX_CHECK_PROGS_REQ([readlink], [readlink])
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ACX_CHECK_PROGS_REQ([tar], [tar])
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ACX_CHECK_PROGS_REQ([gzip], [gzip])
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ACX_CHECK_PROGS_REQ([bzip2], [bzip2])
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ACX_CHECK_PROGS_REQ([xz], [xz])
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ACX_CHECK_PROGS_REQ([help2man], [help2man])
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# Not a fatal failure even if we have neither - the tarballs may
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# be provided in a local directory.
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AC_CHECK_PROGS([wget], [wget])
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ACX_SET_KCONFIG_OPTION([wget])
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AC_SUBST([wget])
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AC_CHECK_PROGS([curl], [curl])
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ACX_SET_KCONFIG_OPTION([curl])
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AC_SUBST([curl])
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ACX_CHECK_PROGS_REQ([stat], [stat])
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AC_CACHE_CHECK([whether stat takes GNU or BSD format],
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[acx_cv_stat_flavor],
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[touch conftest
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chmod 642 conftest
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attr_bsd=`stat -f '%Lp' conftest 2>/dev/null`
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attr_gnu=`stat -c '%a' conftest 2>/dev/null`
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rm -f conftest
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AS_IF([test "$attr_bsd" = "642"],
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[acx_cv_stat_flavor=BSD],
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[test "$attr_gnu" = "642"],
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[acx_cv_stat_flavor=GNU],
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[AC_MSG_ERROR([cannot determine stat(1) format option])])])
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# FIXME: support SET_KCONFIG_OPTION with string values? But then
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# again, these checks may be moved into ct-ng script.
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test "$acx_cv_stat_flavor" = "BSD" && stat_flavor_BSD=y
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ACX_SET_KCONFIG_OPTION([stat_flavor_BSD])
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test "$acx_cv_stat_flavor" = "GNU" && stat_flavor_GNU=y
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ACX_SET_KCONFIG_OPTION([stat_flavor_GNU])
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#--------------------------------------------------------------------
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# Still boring, but remember the path, now...
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#--------------------------------------------------------------------
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ACX_PATH_TOOL_REQ([PATCH], [gpatch patch], [patch])
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#--------------------------------------------------------------------
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# And a bunch of less boring tests...
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#--------------------------------------------------------------------
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# We need a bash that is >= 3.1
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ACX_PROG_VERSION_REQ_STRICT([BASH_SHELL],
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[GNU bash >= 3.1],
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[bash],
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[bash],
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['^GNU bash, version (3\.[1-9]|4)'])
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# We need a awk that *is* GNU awk
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ACX_PROG_VERSION_REQ_STRICT([AWK],
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[GNU awk],
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[awk],
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[gawk awk],
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['^GNU Awk '])
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# FIXME This checks for tools at the time configure runs. If a tool is later updated
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# to satisfy our version requirement, we still won't be able to see that. Or worse,
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# downgraded/removed. We should check this and update configure.in options right
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# before running kconfig. Our configure should only check for stuff needed to
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# build/install crosstool-ng itself.
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#----------------------------------------
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# Check for GNU make (want 3.81 or above, but will accept as long as any make is found)
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ACX_PROG_VERSION_REQ_ANY([MAKE],
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[GNU make >= 3.81],
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[make],
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[gmake make],
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['^GNU Make (3\.8[1-9]|3\.9[0-9]|[4-9]\.)'],
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[make_3_81_or_newer])
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# Check other companion tools that we may or may not build
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ACX_PROG_VERSION([LIBTOOL],
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[GNU libtool >= 2.4],
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[libtool],
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[glibtool libtool],
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['\(GNU libtool\) ([3-9]\.|2.[4-9]|2.[1-3][0-9])'],
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[libtool_2_4_or_newer])
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ACX_PROG_VERSION([LIBTOOLIZE],
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[GNU libtoolize >= 2.4],
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[libtoolize],
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[glibtoolize libtoolize],
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['\(GNU libtool\) ([3-9]\.|2.[4-9]|2.[1-3][0-9])'],
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[libtoolize_2_4_or_newer])
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ACX_PROG_VERSION([AUTOCONF],
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[GNU autoconf >= 2.65],
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[AUTOCONF],
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[autoconf],
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['\(GNU Autoconf\) ([3-9]\.|2\.[7-9][0-9]|2\.6[5-9])'],
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[autoconf_2_63_or_newer])
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ACX_PROG_VERSION([AUTORECONF],
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[GNU autoreconf >= 2.63],
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[autoreconf],
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[autoreconf],
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['\(GNU Autoconf\) ([3-9]\.|2\.[7-9][0-9]|2\.6[3-9])'],
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[autoreconf_2_63_or_newer])
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ACX_PROG_VERSION([AUTOMAKE],
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[GNU automake >= 1.15],
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[automake],
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[automake],
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['\(GNU automake\) ([2-9]\.|1\.[2-9][0-9]|1\.1[5-9])'],
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[automake_1_15_or_newer])
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ACX_PROG_VERSION([M4],
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[GNU m4 >= 1.4.12],
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[m4],
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[gm4 m4],
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['\(GNU M4\) ([2-9]\.|1\.[5-9]|1\.[1-4][0-9]|1\.4\.[2-9][0-9]|1\.4\.1[2-9])'],
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[gnu_m4_1_4_12_or_newer])
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#----------------------------------------
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# Gperf 3.1 started generating functions with size_t rather than unsigned int
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AC_MSG_CHECKING([for the type used in gperf declarations])
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echo "#include <string.h>" > conftest.gperf.c
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echo "const char * in_word_set(const char *, GPERF_LEN_TYPE);" >> conftest.gperf.c
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echo foo,bar | ${GPERF} -L ANSI-C >> conftest.gperf.c
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AS_IF([${CC} -c -o /dev/null conftest.gperf.c -DGPERF_LEN_TYPE='size_t' >/dev/null 2>&1],
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[AC_MSG_RESULT([size_t])
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GPERF_LEN_TYPE='size_t'],
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[${CC} -c -o /dev/null conftest.gperf.c -DGPERF_LEN_TYPE='unsigned int' >/dev/null 2>&1],
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[AC_MSG_RESULT([unsigned int])
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GPERF_LEN_TYPE='unsigned int'],
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[AC_MSG_ERROR([unable to determine gperf len type])])
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rm -f conftest.gperf.c
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AC_SUBST([GPERF_LEN_TYPE])
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#--------------------------------------------------------------------
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# Boring again... But still a bit of work to do...
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#--------------------------------------------------------------------
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AC_SUBST([kconfig_options])
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#----------------------------------------
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AC_CHECK_PROGS([cvs], [cvs])
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ACX_SET_KCONFIG_OPTION([cvs])
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#----------------------------------------
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AC_CHECK_PROGS([svn], [svn])
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ACX_SET_KCONFIG_OPTION([svn])
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AC_CHECK_PROGS([git], [git])
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ACX_SET_KCONFIG_OPTION([git])
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#--------------------------------------------------------------------
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# Now, for some fun...
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#--------------------------------------------------------------------
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AC_C_INLINE
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AC_HEADER_STDC
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AC_FUNC_MALLOC
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AC_FUNC_REALLOC
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AC_FUNC_ALLOCA
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#----------------------------------------
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# Check for gettext and libintl for the kconfig frontends
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AC_SUBST([gettext])
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AC_CHECK_HEADERS(
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[libintl.h],
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[ac_ct_gettext_hdr=$ac_header; break])
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AS_IF(
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[test -n "$ac_ct_gettext_hdr"],
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[AC_CHECK_DECL(
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[gettext],
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[gettext=y],,
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[AC_INCLUDES_DEFAULT()
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#include <$ac_ct_gettext_hdr>])])
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SAVE_LIBS=$LIBS
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AC_SEARCH_LIBS(bindtextdomain, intl, [test "$ac_res" = "none required" || INTL_LIBS="${ac_res}"])
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LIBS=$SAVE_LIBS
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AC_SUBST([INTL_LIBS])
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#----------------------------------------
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# Check for ncurses, for the kconfig frontends
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AC_SUBST([ac_ct_curses_hdr])
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AC_CHECK_HEADERS(
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[ncurses/ncurses.h ncurses/curses.h ncursesw/curses.h ncurses.h curses.h],
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[ac_ct_curses_hdr=$ac_header; break])
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AS_IF(
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[test -z "$ac_ct_curses_hdr"],
|
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[AC_MSG_ERROR([could not find curses header, required for the kconfig frontends])])
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AC_SEARCH_LIBS(
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[initscr],
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[ncursesw ncurses curses],
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[ac_ct_curses_lib_found=yes; break])
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AS_IF(
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[test -z "$ac_ct_curses_lib_found"],
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[AC_MSG_ERROR([could not find curses library, required for the kconfig frontends])])
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AC_SEARCH_LIBS(
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[tgetent],
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[termcap tinfo ncursesw ncurses curses])
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#--------------------------------------------------------------------
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# Lastly, take care of crosstool-NG internal values
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#--------------------------------------------------------------------
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# Hey! We need the date! :-)
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AC_SUBST(
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[DATE],
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[$(date +%Y%m%d)])
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# Decorate the version string if needed
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AS_IF(
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[test -f version.sh -a -x version.sh],
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[V=$(./version.sh "${PACKAGE_VERSION}")])
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AS_IF(
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[test -n "${V}"],
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[PACKAGE_VERSION="${V}"],
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[AS_CASE(
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[${PACKAGE_VERSION}],
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[git|*+git],
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[rev_id="$( git rev-parse --short HEAD )"
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git diff-index --quiet HEAD || rev_id="${rev_id}-dirty"
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PACKAGE_VERSION="${PACKAGE_VERSION}+${rev_id:-unknown-$( date +%Y%m%d.%H%M%S )}"
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])])
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# Arrange to have no / in the directory name, no need to create an
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# arbitrarily deep directory structure
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[PACKAGE_VERSION="$( printf "${PACKAGE_VERSION}\n" |"${SED}" -r -e 's:/+:_:g;' )"]
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# Handle the local case
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AC_SUBST([sublibdir])
|
|
AC_SUBST([subdocdir])
|
|
AS_IF(
|
|
[test "x$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
|