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dnl GNU Guix --- Functional package management for GNU
dnl Copyright © 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
dnl Copyright © 2014 Mark H Weaver <mhw@netris.org>
dnl Copyright © 2017, 2020, 2021, 2023 Efraim Flashner <efraim@flashner.co.il>
dnl Copyright © 2021 Chris Marusich <cmmarusich@gmail.com>
dnl
dnl This file is part of GNU Guix.
dnl
dnl GNU Guix is free software; you can redistribute it and/or modify it
dnl under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3 of the License, or (at
dnl your option) any later version.
dnl
dnl GNU Guix is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

dnl GUIX_SYSTEM_TYPE
dnl
dnl Determine the Guix host system type, and store it in the
dnl `guix_system' variable.
AC_DEFUN([GUIX_SYSTEM_TYPE], [
  AC_REQUIRE([AC_CANONICAL_HOST])
  AC_PATH_PROG([SED], [sed])

  AC_ARG_WITH(system, AS_HELP_STRING([--with-system=SYSTEM],
    [Platform identifier (e.g., `i686-linux').]),
    [guix_system="$withval"],
    [case "$host_cpu" in
       i*86)
	  machine_name="i686";;
       amd64)
          machine_name="x86_64";;
       arm|armv[[7-9]]*)
          # Here we want to exclude CPUs such as "armv6l".  On ARMv7
          # machines, we normally get "armv7l".  However, in Guix, we
          # configure with --build=arm-unknown-linux-gnueabihf, leading
          # to just "arm", so we also have to allow it.
          #
          # TODO: If not cross-compiling, add a sanity check to make
          #       sure this build machine has the needed features to
          #       support executables compiled using our armhf gcc,
          #       configured with:
          #         --with-arch=armv7-a
          #         --with-float=hard
          #         --with-mode=thumb
          #         --with-fpu=vfpv3-d16
	  machine_name="armhf";;
       *)
	  machine_name="$host_cpu";;
     esac

     case "$host_os" in
       linux-gnu*)
	  # For backward compatibility, strip the `-gnu' part.
	  guix_system="$mac
generated by cgit
ost_os | "$SED" -e's/[0-9.]*$//g'`";; esac]) AC_MSG_CHECKING([for the Guix system type]) AC_MSG_RESULT([$guix_system]) AC_SUBST([guix_system]) ]) dnl GUIX_ASSERT_SUPPORTED_SYSTEM dnl dnl Assert that this is a system to which the distro is ported. AC_DEFUN([GUIX_ASSERT_SUPPORTED_SYSTEM], [ AC_REQUIRE([GUIX_SYSTEM_TYPE]) AC_ARG_WITH([courage], [AS_HELP_STRING([--with-courage], [Assert that even if this platform is unsupported, you will be courageous and port the GNU System distribution to it (see "GNU Distribution" in the manual.)])], [guix_courageous="$withval"], [guix_courageous="no"]) # Currently only Linux-based systems are supported, and only on some # platforms. case "$guix_system" in x86_64-linux|i686-linux|armhf-linux|aarch64-linux|powerpc64le-linux|riscv64-linux|i586-gnu) ;; mips64el-linux|powerpc-linux) AC_MSG_WARN([building Guix on `$guix_system', which is not supported]) ;; *) if test "x$guix_courageous" = "xyes"; then AC_MSG_WARN([building Guix on `$guix_system', which is not supported]) else AC_MSG_ERROR([`$guix_system' is not a supported platform. See "GNU Distribution" in the manual, or try `--with-courage'.]) fi ;; esac ]) dnl GUIX_ASSERT_GUILE_FEATURES FEATURES dnl dnl Assert that FEATURES are provided by $GUILE. AC_DEFUN([GUIX_ASSERT_GUILE_FEATURES], [ for guix_guile_feature in $1 do AC_MSG_CHECKING([whether $GUILE provides feature '$guix_guile_feature']) if "$GUILE" -c "(exit (provided? '$guix_guile_feature))" then AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) AC_MSG_ERROR([$GUILE does not support feature '$guix_guile_feature', which is required.]) fi done ]) dnl GUIX_CHECK_GUILE_SSH dnl dnl Check whether a recent-enough Guile-SSH is available. AC_DEFUN([GUIX_CHECK_GUILE_SSH], [ dnl Check whether '#:nodelay' parameter to 'make-session' (introduced in dnl 0.13.0) is present. AC_CACHE_CHECK([whether Guile-SSH is available and recent enough], [guix_cv_have_recent_guile_ssh], [GUILE_CHECK([retval], [(and (@ (ssh channel) channel-send-eof) (@ (ssh popen) open-remote-pipe) (@ (ssh dist node) node-eval) (@ (ssh auth) userauth-gssapi!) ((@ (ssh session) make-session) #:nodelay #t))]) if test "$retval" = 0; then guix_cv_have_recent_guile_ssh="yes" else guix_cv_have_recent_guile_ssh="no" fi]) ]) dnl GUIX_CHECK_GUILE_SQLITE3 dnl dnl Check whether a recent-enough Guile-Sqlite3 is available. AC_DEFUN([GUIX_CHECK_GUILE_SQLITE3], [ dnl Check whether 'sqlite-bind-arguments' is available. It was introduced dnl in February 2018: dnl <https://notabug.org/guile-sqlite3/guile-sqlite3/commit/1cd1dec96a9999db48c0ff45bab907efc637247f>. AC_CACHE_CHECK([whether Guile-Sqlite3 is available and recent enough], [guix_cv_have_recent_guile_sqlite3], [GUILE_CHECK([retval], [(@ (sqlite3) sqlite-bind-arguments)]) if test "$retval" = 0; then guix_cv_have_recent_guile_sqlite3="yes" else guix_cv_have_recent_guile_sqlite3="no" fi]) ]) dnl GUIX_CHECK_GUILE_JSON dnl dnl Check whether a recent-enough Guile-JSON is available. AC_DEFUN([GUIX_CHECK_GUILE_JSON], [ dnl Check whether we're using Guile-JSON 4.3+, which provides dnl 'define-json-mapping'. AC_CACHE_CHECK([whether Guile-JSON is available and recent enough], [guix_cv_have_recent_guile_json], [GUILE_CHECK([retval], [(use-modules (json)) (define-json-mapping <frob> make-frob frob? json->frob (a frob-a) (b frob-b \"bee\")) (exit (equal? (json->frob (open-input-string \"{ \\\"a\\\": 1, \\\"bee\\\": 2 }\")) (make-frob 1 2)))]) if test "$retval" = 0; then guix_cv_have_recent_guile_json="yes" else guix_cv_have_recent_guile_json="no" fi]) ]) dnl GUIX_CHECK_GUILE_GCRYPT dnl dnl Check whether a recent-enough Guile-Gcrypt is available. AC_DEFUN([GUIX_CHECK_GUILE_GCRYPT], [ dnl Check whether we're using Guile-Gcrypt 0.2.x or later. 0.2.0 dnl introduced the 'hash-algorithm' macro and related code. AC_CACHE_CHECK([whether Guile-Gcrypt is available and recent enough], [guix_cv_have_recent_guile_gcrypt], [GUILE_CHECK([retval], [(use-modules (gcrypt hash)) (equal? (hash-algorithm sha256) (lookup-hash-algorithm 'sha256))]) if test "$retval" = 0; then guix_cv_have_recent_guile_gcrypt="yes" else guix_cv_have_recent_guile_gcrypt="no" fi]) ]) dnl GUIX_CHECK_GUILE_GIT dnl dnl Check whether a recent-enough Guile-Git is available. AC_DEFUN([GUIX_CHECK_GUILE_GIT], [ dnl Check whether we're using Guile-Git 0.3.0 or later. 0.3.0 dnl introduced SSH authentication support and more. AC_CACHE_CHECK([whether Guile-Git is available and recent enough], [guix_cv_have_recent_guile_git], [GUILE_CHECK([retval], [(use-modules (git) (git auth) (git submodule)) (let ((auth (%make-auth-ssh-agent))) repository-close! object-lookup-prefix (make-clone-options #:fetch-options (make-fetch-options auth)))]) if test "$retval" = 0; then guix_cv_have_recent_guile_git="yes" else guix_cv_have_recent_guile_git="no" fi]) ]) dnl GUIX_CHECK_GUILE_ZLIB dnl dnl Check whether a recent-enough Guile-zlib is available. AC_DEFUN([GUIX_CHECK_GUILE_ZLIB], [ dnl Check whether we're using Guile-zlib 0.1.0 or later. dnl 0.1.0 introduced the 'make-zlib-input-port' and related code. AC_CACHE_CHECK([whether Guile-zlib is available and recent enough], [guix_cv_have_recent_guile_zlib], [GUILE_CHECK([retval], [(use-modules (zlib)) make-zlib-input-port]) if test "$retval" = 0; then guix_cv_have_recent_guile_zlib="yes" else guix_cv_have_recent_guile_zlib="no" fi]) ]) dnl GUIX_TEST_ROOT_DIRECTORY AC_DEFUN([GUIX_TEST_ROOT_DIRECTORY], [ AC_CACHE_CHECK([for unit test root directory], [ac_cv_guix_test_root], [ac_cv_guix_test_root="`pwd`/test-tmp"]) ]) dnl 'BINPRM_BUF_SIZE' constant in Linux (we leave room for the trailing zero.) dnl The Hurd has a limit of about a page (see exec/hashexec.c.) m4_define([LINUX_HASH_BANG_LIMIT], 127) dnl Hardcoded 'sun_path' length in <sys/un.h>. m4_define([SOCKET_FILE_NAME_LIMIT], 108) dnl GUIX_SOCKET_FILE_NAME_LENGTH AC_DEFUN([GUIX_SOCKET_FILE_NAME_LENGTH], [ AC_CACHE_CHECK([the length of the installed socket file name], [ac_cv_guix_socket_file_name_length], [ac_cv_guix_socket_file_name_length="`echo -n "$guix_localstatedir/guix/daemon-socket/socket" | wc -c`"]) ]) dnl GUIX_TEST_SOCKET_FILE_NAME_LENGTH AC_DEFUN([GUIX_TEST_SOCKET_FILE_NAME_LENGTH], [ AC_REQUIRE([GUIX_TEST_ROOT_DIRECTORY]) AC_CACHE_CHECK([the length of the socket file name used in tests], [ac_cv_guix_test_socket_file_name_length], [ac_cv_guix_test_socket_file_name_length="`echo -n "$ac_cv_guix_test_root/var/123456/daemon-socket/socket" | wc -c`"]) ]) dnl GUIX_HASH_BANG_LENGTH AC_DEFUN([GUIX_HASH_BANG_LENGTH], [ AC_CACHE_CHECK([the length of a typical hash bang line], [ac_cv_guix_hash_bang_length], [ac_cv_guix_hash_bang_length=`echo -n "$storedir/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-bootstrap-binaries-0/bin/bash" | wc -c`]) ]) dnl GUIX_TEST_HASH_BANG_LENGTH AC_DEFUN([GUIX_TEST_HASH_BANG_LENGTH], [ AC_REQUIRE([GUIX_TEST_ROOT_DIRECTORY]) AC_CACHE_CHECK([the length of a hash bang line used in tests], [ac_cv_guix_test_hash_bang_length], [ac_cv_guix_test_hash_bang_length=`echo -n "$ac_cv_guix_test_root/store/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-bootstrap-binaries-0/bin/bash" | wc -c`]) ]) dnl GUIX_CHECK_FILE_NAME_LIMITS dnl dnl GNU/Linux has a couple of silly limits that we can easily run into. dnl Make sure everything is fine with the current settings. Set $1 to dnl 'yes' if tests can run, 'no' otherwise. AC_DEFUN([GUIX_CHECK_FILE_NAME_LIMITS], [ AC_REQUIRE([GUIX_SOCKET_FILE_NAME_LENGTH]) AC_REQUIRE([GUIX_TEST_SOCKET_FILE_NAME_LENGTH]) AC_REQUIRE([GUIX_HASH_BANG_LENGTH]) AC_REQUIRE([GUIX_TEST_HASH_BANG_LENGTH]) if test "$ac_cv_guix_socket_file_name_length" -ge ]SOCKET_FILE_NAME_LIMIT[; then AC_MSG_ERROR([socket file name would exceed the maximum allowed length]) fi if test "$ac_cv_guix_test_socket_file_name_length" -ge ]SOCKET_FILE_NAME_LIMIT[; then AC_MSG_WARN([socket file name limit may be exceeded when running tests]) fi $1=yes if test "$ac_cv_guix_hash_bang_length" -ge ]LINUX_HASH_BANG_LIMIT[; then $1=no AC_MSG_ERROR([store directory '$storedir' would lead to overly long hash-bang lines]) fi if test "$ac_cv_guix_test_hash_bang_length" -ge ]LINUX_HASH_BANG_LIMIT[; then $1=no AC_MSG_WARN([test directory '$ac_cv_guix_test_root' may lead to overly long hash-bang lines]) fi ]) dnl GUIX_CHECK_CXX11 dnl dnl Check whether the C++ compiler can compile a typical C++11 program. AC_DEFUN([GUIX_CHECK_CXX11], [ AC_REQUIRE([AC_PROG_CXX]) AC_CACHE_CHECK([whether $CXX supports C++11], [ac_cv_guix_cxx11_support], [save_CXXFLAGS="$CXXFLAGS" CXXFLAGS="-std=c++11 $CXXFLAGS" AC_COMPILE_IFELSE([ AC_LANG_SOURCE([ #include <functional> std::function<int(int)> return_plus_lambda (int x) { auto result = [[&]](int y) { return x + y; }; return result; } ])], [ac_cv_guix_cxx11_support=yes], [ac_cv_guix_cxx11_support=no]) CXXFLAGS="$save_CXXFLAGS" ]) ]) dnl GUIX_ASSERT_CXX11 dnl dnl Error out if the C++ compiler cannot compile C++11 code. AC_DEFUN([GUIX_ASSERT_CXX11], [ GUIX_CHECK_CXX11 if test "x$ac_cv_guix_cxx11_support" != "xyes"; then AC_MSG_ERROR([C++ compiler '$CXX' does not support the C++11 standard]) fi ]) dnl GUIX_LIBGCRYPT_LIBDIR VAR dnl dnl Attempt to determine libgcrypt's LIBDIR; store the result in VAR. AC_DEFUN([GUIX_LIBGCRYPT_LIBDIR], [ AC_PATH_PROG([LIBGCRYPT_CONFIG], [libgcrypt-config]) AC_CACHE_CHECK([libgcrypt's library directory], [guix_cv_libgcrypt_libdir], [if test "x$LIBGCRYPT_CONFIG" != "x"; then guix_cv_libgcrypt_libdir=`$LIBGCRYPT_CONFIG --libs | grep -e -L | sed -e "s/.*-L\([[^ ]]\+\)[[[:blank:]]]\+-lgcrypt.*/\1/g"` else guix_cv_libgcrypt_libdir="" fi]) $1="$guix_cv_libgcrypt_libdir" ]) dnl GUIX_CURRENT_LOCALSTATEDIR dnl dnl Determine the localstatedir of an existing Guix installation and set dnl 'guix_cv_current_localstatedir' accordingly. Set it to "none" if no dnl existing installation was found. AC_DEFUN([GUIX_CURRENT_LOCALSTATEDIR], [ AC_PATH_PROG([GUILE], [guile]) AC_CACHE_CHECK([the current installation's localstatedir], [guix_cv_current_localstatedir], [dnl Call 'dirname' because (guix config) appends "/guix" to LOCALSTATEDIR. guix_cv_current_localstatedir="`"$GUILE" \ -c '(use-modules (guix config)) (when (string=? %store-directory "'$storedir'") (display (dirname %state-directory)))' \ 2>/dev/null`" if test "x$guix_cv_current_localstatedir" = "x"; then guix_cv_current_localstatedir=none fi])]) dnl GUIX_CHECK_LOCALSTATEDIR dnl dnl Check that the LOCALSTATEDIR value is consistent with that of the existing dnl Guix installation, if any. Error out or warn if they do not match. AC_DEFUN([GUIX_CHECK_LOCALSTATEDIR], [ AC_REQUIRE([GUIX_CURRENT_LOCALSTATEDIR]) if test "x$guix_cv_current_localstatedir" != "xnone"; then if test "$guix_cv_current_localstatedir" != "$guix_localstatedir"; then case "$localstatedir" in NONE|\${prefix}*) # User kept the default value---i.e., did not pass '--localstatedir'. AC_MSG_ERROR([chosen localstatedir '$guix_localstatedir' does not match \ that of the existing installation '$guix_cv_current_localstatedir' Installing may corrupt $storedir! Use './configure --localstatedir=$guix_cv_current_localstatedir'.]) ;; *) # User passed an explicit '--localstatedir'. Assume they know what # they're doing. AC_MSG_WARN([chosen localstatedir '$guix_localstatedir' does not match \ that of the existing installation '$guix_cv_current_localstatedir']) AC_MSG_WARN([installing may corrupt $storedir!]) ;; esac fi fi]) dnl GUIX_CHANNEL_METADATA dnl dnl Provide the channel metadata for this build. This allows 'guix describe' dnl to return meaningful data, as it would for a 'guix pull'-provided 'guix'. dnl The default URL and introduction are taken from (guix channels). AC_DEFUN([GUIX_CHANNEL_METADATA], [ AC_ARG_WITH([channel-url], [AS_HELP_STRING([--with-channel-url=URL], [assert that this is built from the Git repository at URL])], [guix_channel_url="\"$withval\""], [guix_channel_url="\"https://git.savannah.gnu.org/git/guix.git\""]) AC_ARG_WITH([channel-commit], [AS_HELP_STRING([--with-channel-commit=COMMIT], [assert that this is built from COMMIT])], [guix_channel_commit="\"$withval\""], [guix_channel_commit="#f"]) AC_ARG_WITH([channel-introduction], [AS_HELP_STRING([--with-channel-introduction=COMMIT:FINGERPRINT], [specify COMMIT and FINGERPRINT as the introduction of this channel])], [guix_channel_introduction="'(\"`echo $withval | cut -f1 -d:`\" \"`echo $withval | cut -f2 -d:`\")"], [guix_channel_introduction="'(\"9edb3f66fd807b096b48283debdcddccfea34bad\" . \"BBB0 2DDF 2CEA F6A8 0D1D E643 A2A0 6DF2 A33A 54FA\")"]) GUIX_CHANNEL_URL="$guix_channel_url" GUIX_CHANNEL_COMMIT="$guix_channel_commit" GUIX_CHANNEL_INTRODUCTION="$guix_channel_introduction" AC_SUBST([GUIX_CHANNEL_URL]) AC_SUBST([GUIX_CHANNEL_COMMIT]) AC_SUBST([GUIX_CHANNEL_INTRODUCTION]) ])