dnl GNU Guix --- Functional package management for GNU
-dnl Copyright © 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+dnl Copyright © 2012, 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
dnl Copyright © 2014 Mark H Weaver <mhw@netris.org>
dnl
dnl This file is part of GNU Guix.
i*86)
machine_name="i686";;
amd64)
- machine_name="x86_64";;
- arm*)
+ 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,
[ac_cv_guix_test_root="`pwd`/test-tmp"])
])
-dnl 'BINPRM_BUF_SIZE' constant in Linux. The Hurd has a limit
-dnl of about a page (see exec/hashexec.c.)
-m4_define([LINUX_HASH_BANG_LIMIT], 128)
+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)
[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.
+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 maxium allowed length])
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
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 | sed -e "s/.*-L\([[^ ]]\+\)[[[:blank:]]]\+-lgcrypt.*/\1/g"`
+ 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])
HCoop / jackhill / guix / guix.git / blobdiff