remove the autoconf+Make buildsystem

We're not using it anymore. Any leftover bugs in the Meson buildsystem
are now just bugs.

Closes #249.

Change-Id: I0465a0c37ae819f94d40e7829f5bff046aa63d73
This commit is contained in:
Qyriad 2024-05-07 13:34:36 -06:00
parent d184981af0
commit b9be46fb31
59 changed files with 32 additions and 3338 deletions

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@ -1,71 +0,0 @@
include mk/build-dir.mk
-include $(buildprefix)Makefile.config
clean-files += $(buildprefix)Makefile.config
ifeq ($(ENABLE_BUILD), yes)
makefiles = \
mk/precompiled-headers.mk \
local.mk \
src/libutil/local.mk \
src/libstore/local.mk \
src/libfetchers/local.mk \
src/libmain/local.mk \
src/libexpr/local.mk \
src/libcmd/local.mk \
src/nix/local.mk \
src/resolve-system-dependencies/local.mk \
scripts/local.mk \
misc/bash/local.mk \
misc/fish/local.mk \
misc/zsh/local.mk \
misc/systemd/local.mk \
misc/launchd/local.mk
endif
ifeq ($(ENABLE_BUILD)_$(ENABLE_TESTS), yes_yes)
UNIT_TEST_ENV = _NIX_TEST_UNIT_DATA=unit-test-data
makefiles += \
tests/unit/libutil/local.mk \
tests/unit/libutil-support/local.mk \
tests/unit/libstore/local.mk
endif
ifeq ($(ENABLE_TESTS), yes)
makefiles += \
tests/unit/libstore-support/local.mk \
tests/unit/libexpr/local.mk \
tests/unit/libexpr-support/local.mk \
tests/functional/local.mk \
tests/functional/ca/local.mk \
tests/functional/dyn-drv/local.mk \
tests/functional/test-libstoreconsumer/local.mk \
tests/functional/repl_characterization/local.mk \
tests/functional/plugins/local.mk
else
makefiles += \
mk/disable-tests.mk
endif
# Some makefiles require access to built programs and must be included late.
makefiles-late =
ifeq ($(ENABLE_BUILD), yes)
makefiles-late += doc/manual/local.mk
makefiles-late += doc/internal-api/local.mk
endif
# Miscellaneous global Flags
OPTIMIZE = 1
ifeq ($(OPTIMIZE), 1)
GLOBAL_CXXFLAGS += -O2 $(CXXLTO)
GLOBAL_LDFLAGS += $(CXXLTO)
else
GLOBAL_CXXFLAGS += -O0 -U_FORTIFY_SOURCE
endif
include mk/lib.mk
GLOBAL_CXXFLAGS += -g -Wall -Wimplicit-fallthrough -include $(buildprefix)config.h -std=c++2a -I src

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@ -1,52 +0,0 @@
AR = @AR@
BDW_GC_LIBS = @BDW_GC_LIBS@
BOOST_LDFLAGS = @BOOST_LDFLAGS@
BUILD_SHARED_LIBS = @BUILD_SHARED_LIBS@
CC = @CC@
CFLAGS = @CFLAGS@
CXX = @CXX@
CXXFLAGS = @CXXFLAGS@
CXXLTO = @CXXLTO@
EDITLINE_LIBS = @EDITLINE_LIBS@
ENABLE_S3 = @ENABLE_S3@
GTEST_LIBS = @GTEST_LIBS@
HAVE_LIBCPUID = @HAVE_LIBCPUID@
HAVE_SECCOMP = @HAVE_SECCOMP@
HOST_OS = @host_os@
LDFLAGS = @LDFLAGS@
LIBARCHIVE_LIBS = @LIBARCHIVE_LIBS@
LIBBROTLI_LIBS = @LIBBROTLI_LIBS@
LIBCURL_LIBS = @LIBCURL_LIBS@
LIBSECCOMP_LIBS = @LIBSECCOMP_LIBS@
LOWDOWN_LIBS = @LOWDOWN_LIBS@
NIXDOC_LIBS = -llix_doc
OPENSSL_LIBS = @OPENSSL_LIBS@
PACKAGE_NAME = @PACKAGE_NAME@
PACKAGE_VERSION = @PACKAGE_VERSION@
RAPIDCHECK_HEADERS = @RAPIDCHECK_HEADERS@
SHELL = @bash@
SODIUM_LIBS = @SODIUM_LIBS@
SQLITE3_LIBS = @SQLITE3_LIBS@
bash = @bash@
bindir = @bindir@
datadir = @datadir@
datarootdir = @datarootdir@
doc_generate = @doc_generate@
docdir = @docdir@
embedded_sandbox_shell = @embedded_sandbox_shell@
exec_prefix = @exec_prefix@
includedir = @includedir@
libdir = @libdir@
libexecdir = @libexecdir@
localstatedir = @localstatedir@
lsof = @lsof@
mandir = @mandir@
pkglibdir = $(libdir)/$(PACKAGE_NAME)
prefix = @prefix@
sandbox_shell = @sandbox_shell@
storedir = @storedir@
sysconfdir = @sysconfdir@
system = @system@
ENABLE_BUILD = @ENABLE_BUILD@
ENABLE_TESTS = @ENABLE_TESTS@
internal_api_docs = @internal_api_docs@

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@ -1,396 +0,0 @@
AC_INIT([nix],[m4_esyscmd(bash -c "echo -n $(cat ./.version)$VERSION_SUFFIX")])
AC_CONFIG_MACRO_DIRS([m4])
AC_CONFIG_SRCDIR(README.md)
AC_CONFIG_AUX_DIR(config)
AC_PROG_SED
# Construct a Nix system name (like "i686-linux"):
# https://www.gnu.org/software/autoconf/manual/html_node/Canonicalizing.html#index-AC_005fCANONICAL_005fHOST-1
# The inital value is produced by the `config/config.guess` script:
# upstream: https://git.savannah.gnu.org/cgit/config.git/tree/config.guess
# It has the following form, which is not documented anywhere:
# <cpu>-<vendor>-<os>[<version>][-<abi>]
# If `./configure` is passed any of the `--host`, `--build`, `--target` options, the value comes from `config/config.sub` instead:
# upstream: https://git.savannah.gnu.org/cgit/config.git/tree/config.sub
AC_CANONICAL_HOST
AC_MSG_CHECKING([for the canonical Nix system name])
AC_ARG_WITH(system, AS_HELP_STRING([--with-system=SYSTEM],[Platform identifier (e.g., `i686-linux').]),
[system=$withval],
[case "$host_cpu" in
i*86)
machine_name="i686";;
amd64)
machine_name="x86_64";;
armv6|armv7)
machine_name="${host_cpu}l";;
*)
machine_name="$host_cpu";;
esac
case "$host_os" in
linux-gnu*|linux-musl*)
# For backward compatibility, strip the `-gnu' part.
system="$machine_name-linux";;
*)
# Strip the version number from names such as `gnu0.3',
# `darwin10.2.0', etc.
system="$machine_name-`echo $host_os | "$SED" -e's/@<:@0-9.@:>@*$//g'`";;
esac])
AC_MSG_RESULT($system)
AC_SUBST(system)
AC_DEFINE_UNQUOTED(SYSTEM, ["$system"], [platform identifier ('cpu-os')])
# State should be stored in /nix/var, unless the user overrides it explicitly.
test "$localstatedir" = '${prefix}/var' && localstatedir=/nix/var
# Assign a default value to C{,XX}FLAGS as the default configure script sets them
# to -O2 otherwise, which we don't want to have hardcoded
CFLAGS=${CFLAGS-""}
CXXFLAGS=${CXXFLAGS-""}
AC_PROG_CC
AC_PROG_CXX
AC_PROG_CPP
AC_CHECK_TOOL([AR], [ar])
# Use 64-bit file system calls so that we can support files > 2 GiB.
AC_SYS_LARGEFILE
# Solaris-specific stuff.
AC_STRUCT_DIRENT_D_TYPE
case "$host_os" in
solaris*)
# Solaris requires -lsocket -lnsl for network functions
LDFLAGS="-lsocket -lnsl $LDFLAGS"
;;
esac
ENSURE_NO_GCC_BUG_80431
# Check for pubsetbuf.
AC_MSG_CHECKING([for pubsetbuf])
AC_LANG_PUSH(C++)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <iostream>
using namespace std;
static char buf[1024];]],
[[cerr.rdbuf()->pubsetbuf(buf, sizeof(buf));]])],
[AC_MSG_RESULT(yes) AC_DEFINE(HAVE_PUBSETBUF, 1, [Whether pubsetbuf is available.])],
AC_MSG_RESULT(no))
AC_LANG_POP(C++)
AC_CHECK_FUNCS([statvfs pipe2])
# Check for lutimes, optionally used for changing the mtime of
# symlinks.
AC_CHECK_FUNCS([lutimes])
# Check whether the store optimiser can optimise symlinks.
AC_MSG_CHECKING([whether it is possible to create a link to a symlink])
ln -s bla tmp_link
if ln tmp_link tmp_link2 2> /dev/null; then
AC_MSG_RESULT(yes)
AC_DEFINE(CAN_LINK_SYMLINK, 1, [Whether link() works on symlinks.])
else
AC_MSG_RESULT(no)
fi
rm -f tmp_link tmp_link2
# Check for <locale>.
AC_LANG_PUSH(C++)
AC_CHECK_HEADERS([locale])
AC_LANG_POP(C++)
AC_DEFUN([NEED_PROG],
[
AC_PATH_PROG($1, $2)
if test -z "$$1"; then
AC_MSG_ERROR([$2 is required])
fi
])
NEED_PROG(bash, bash)
AC_PATH_PROG(flex, flex, false)
AC_PATH_PROG(bison, bison, false)
AC_PATH_PROG(dot, dot)
AC_PATH_PROG(lsof, lsof, lsof)
NEED_PROG(jq, jq)
AC_SUBST(coreutils, [$(dirname $(type -p cat))])
AC_ARG_WITH(store-dir, AS_HELP_STRING([--with-store-dir=PATH],[path of the Nix store (defaults to /nix/store)]),
storedir=$withval, storedir='/nix/store')
AC_SUBST(storedir)
# Look for boost, a required dependency.
# Note that AX_BOOST_BASE only exports *CPP* BOOST_CPPFLAGS, no CXX flags,
# and CPPFLAGS are not passed to the C++ compiler automatically.
# Thus we append the returned CPPFLAGS to the CXXFLAGS here.
AX_BOOST_BASE([1.66], [CXXFLAGS="$BOOST_CPPFLAGS $CXXFLAGS"], [AC_MSG_ERROR([Nix requires boost.])])
# For unknown reasons, setting this directly in the ACTION-IF-FOUND above
# ends up with LDFLAGS being empty, so we set it afterwards.
LDFLAGS="$BOOST_LDFLAGS $LDFLAGS"
# On some platforms, new-style atomics need a helper library
AC_MSG_CHECKING(whether -latomic is needed)
AC_LINK_IFELSE([AC_LANG_SOURCE([[
#include <stdint.h>
uint64_t v;
int main() {
return (int)__atomic_load_n(&v, __ATOMIC_ACQUIRE);
}]])], GCC_ATOMIC_BUILTINS_NEED_LIBATOMIC=no, GCC_ATOMIC_BUILTINS_NEED_LIBATOMIC=yes)
AC_MSG_RESULT($GCC_ATOMIC_BUILTINS_NEED_LIBATOMIC)
if test "x$GCC_ATOMIC_BUILTINS_NEED_LIBATOMIC" = xyes; then
LDFLAGS="-latomic $LDFLAGS"
fi
# Running the functional tests without building Nix is useful for testing
# different pre-built versions of Nix against each other.
AC_ARG_ENABLE(build, AS_HELP_STRING([--disable-build],[Do not build nix]),
ENABLE_BUILD=$enableval, ENABLE_BUILD=yes)
AC_SUBST(ENABLE_BUILD)
# Building without tests is useful for bootstrapping with a smaller footprint
# or running the tests in a separate derivation. Otherwise, we do compile and
# run them.
AC_ARG_ENABLE(tests, AS_HELP_STRING([--disable-tests],[Do not build the tests]),
ENABLE_TESTS=$enableval, ENABLE_TESTS=yes)
AC_SUBST(ENABLE_TESTS)
# Building without API docs is the default as Nix' C++ interfaces are internal and unstable.
AC_ARG_ENABLE(internal_api_docs, AS_HELP_STRING([--enable-internal-api-docs],[Build API docs for Nix's internal unstable C++ interfaces]),
internal_api_docs=$enableval, internal_api_docs=no)
AC_SUBST(internal_api_docs)
# LTO is currently broken with clang for unknown reasons; ld segfaults in the llvm plugin
AC_ARG_ENABLE(lto, AS_HELP_STRING([--enable-lto],[Enable LTO (only supported with GCC) [default=no]]),
lto=$enableval, lto=no)
if test "$lto" = yes; then
if $CXX --version | grep -q GCC; then
AC_SUBST(CXXLTO, [-flto=jobserver])
else
echo "error: LTO is only supported with GCC at the moment" >&2
exit 1
fi
else
AC_SUBST(CXXLTO, [""])
fi
PKG_PROG_PKG_CONFIG
AC_ARG_ENABLE(shared, AS_HELP_STRING([--enable-shared],[Build shared libraries for Nix [default=yes]]),
shared=$enableval, shared=yes)
if test "$shared" = yes; then
AC_SUBST(BUILD_SHARED_LIBS, 1, [Whether to build shared libraries.])
else
AC_SUBST(BUILD_SHARED_LIBS, 0, [Whether to build shared libraries.])
PKG_CONFIG="$PKG_CONFIG --static"
fi
# Look for OpenSSL, a required dependency. FIXME: this is only (maybe)
# used by S3BinaryCacheStore.
PKG_CHECK_MODULES([OPENSSL], [libcrypto >= 1.1.1], [CXXFLAGS="$OPENSSL_CFLAGS $CXXFLAGS"])
# Look for libarchive.
PKG_CHECK_MODULES([LIBARCHIVE], [libarchive >= 3.1.2], [CXXFLAGS="$LIBARCHIVE_CFLAGS $CXXFLAGS"])
# Workaround until https://github.com/libarchive/libarchive/issues/1446 is fixed
if test "$shared" != yes; then
LIBARCHIVE_LIBS+=' -lz'
fi
# Look for SQLite, a required dependency.
PKG_CHECK_MODULES([SQLITE3], [sqlite3 >= 3.6.19], [CXXFLAGS="$SQLITE3_CFLAGS $CXXFLAGS"])
# Look for libcurl, a required dependency.
PKG_CHECK_MODULES([LIBCURL], [libcurl], [CXXFLAGS="$LIBCURL_CFLAGS $CXXFLAGS"])
# Look for editline, a required dependency.
# The the libeditline.pc file was added only in libeditline >= 1.15.2,
# see https://github.com/troglobit/editline/commit/0a8f2ef4203c3a4a4726b9dd1336869cd0da8607,
# but e.g. Ubuntu 16.04 has an older version, so we fall back to searching for
# editline.h when the pkg-config approach fails.
PKG_CHECK_MODULES([EDITLINE], [libeditline], [CXXFLAGS="$EDITLINE_CFLAGS $CXXFLAGS"], [
AC_CHECK_HEADERS([editline.h], [true],
[AC_MSG_ERROR([Nix requires libeditline; it was found neither via pkg-config nor its normal header.])])
AC_SEARCH_LIBS([readline read_history], [editline], [],
[AC_MSG_ERROR([Nix requires libeditline; it was not found via pkg-config, but via its header, but required functions do not work. Maybe it is too old? >= 1.14 is required.])])
])
# Look for libsodium.
PKG_CHECK_MODULES([SODIUM], [libsodium], [CXXFLAGS="$SODIUM_CFLAGS $CXXFLAGS"])
# Look for libbrotli{enc,dec}.
PKG_CHECK_MODULES([LIBBROTLI], [libbrotlienc libbrotlidec], [CXXFLAGS="$LIBBROTLI_CFLAGS $CXXFLAGS"])
# Look for libcpuid.
have_libcpuid=
if test "$machine_name" = "x86_64"; then
AC_ARG_ENABLE([cpuid],
AS_HELP_STRING([--disable-cpuid], [Do not determine microarchitecture levels with libcpuid (relevant to x86_64 only)]))
if test "x$enable_cpuid" != "xno"; then
PKG_CHECK_MODULES([LIBCPUID], [libcpuid],
[CXXFLAGS="$LIBCPUID_CFLAGS $CXXFLAGS"
have_libcpuid=1
AC_DEFINE([HAVE_LIBCPUID], [1], [Use libcpuid])]
)
fi
fi
AC_SUBST(HAVE_LIBCPUID, [$have_libcpuid])
# Look for libseccomp, required for Linux sandboxing.
case "$host_os" in
linux*)
AC_ARG_ENABLE([seccomp-sandboxing],
AS_HELP_STRING([--disable-seccomp-sandboxing],[Don't build support for seccomp sandboxing (only recommended if your arch doesn't support libseccomp yet!)
]))
if test "x$enable_seccomp_sandboxing" != "xno"; then
PKG_CHECK_MODULES([LIBSECCOMP], [libseccomp],
[CXXFLAGS="$LIBSECCOMP_CFLAGS $CXXFLAGS"])
have_seccomp=1
AC_DEFINE([HAVE_SECCOMP], [1], [Whether seccomp is available and should be used for sandboxing.])
else
have_seccomp=
fi
;;
*)
have_seccomp=
;;
esac
AC_SUBST(HAVE_SECCOMP, [$have_seccomp])
# Look for aws-cpp-sdk-s3.
AC_LANG_PUSH(C++)
AC_CHECK_HEADERS([aws/s3/S3Client.h],
[AC_DEFINE([ENABLE_S3], [1], [Whether to enable S3 support via aws-sdk-cpp.]) enable_s3=1],
[AC_DEFINE([ENABLE_S3], [0], [Whether to enable S3 support via aws-sdk-cpp.]) enable_s3=])
AC_SUBST(ENABLE_S3, [$enable_s3])
AC_LANG_POP(C++)
if test -n "$enable_s3"; then
declare -a aws_version_tokens=($(printf '#include <aws/core/VersionConfig.h>\nAWS_SDK_VERSION_STRING' | $CPP $CPPFLAGS - | grep -v '^#.*' | sed 's/"//g' | tr '.' ' '))
AC_DEFINE_UNQUOTED([AWS_VERSION_MAJOR], ${aws_version_tokens@<:@0@:>@}, [Major version of aws-sdk-cpp.])
AC_DEFINE_UNQUOTED([AWS_VERSION_MINOR], ${aws_version_tokens@<:@1@:>@}, [Minor version of aws-sdk-cpp.])
AC_DEFINE_UNQUOTED([AWS_VERSION_PATCH], ${aws_version_tokens@<:@2@:>@}, [Patch version of aws-sdk-cpp.])
fi
# Whether to use the Boehm garbage collector.
AC_ARG_ENABLE(gc, AS_HELP_STRING([--enable-gc],[enable garbage collection in the Nix expression evaluator (requires Boehm GC) [default=yes]]),
gc=$enableval, gc=yes)
if test "$gc" = yes; then
PKG_CHECK_MODULES([BDW_GC], [bdw-gc])
CXXFLAGS="$BDW_GC_CFLAGS $CXXFLAGS"
AC_DEFINE(HAVE_BOEHMGC, 1, [Whether to use the Boehm garbage collector.])
fi
if test "$ENABLE_TESTS" = yes; then
# Look for gtest.
PKG_CHECK_MODULES([GTEST], [gtest_main gmock_main])
# Look for rapidcheck.
AC_ARG_VAR([RAPIDCHECK_HEADERS], [include path of gtest headers shipped by RAPIDCHECK])
# No pkg-config yet, https://github.com/emil-e/rapidcheck/issues/302
AC_LANG_PUSH(C++)
AC_SUBST(RAPIDCHECK_HEADERS)
[CXXFLAGS="-I $RAPIDCHECK_HEADERS $CXXFLAGS"]
[LIBS="-lrapidcheck -lgtest $LIBS"]
AC_CHECK_HEADERS([rapidcheck/gtest.h], [], [], [#include <gtest/gtest.h>])
dnl AC_CHECK_LIB doesn't work for C++ libs with mangled symbols
AC_LINK_IFELSE([
AC_LANG_PROGRAM([[
#include <gtest/gtest.h>
#include <rapidcheck/gtest.h>
]], [[
return RUN_ALL_TESTS();
]])
],
[],
[AC_MSG_ERROR([librapidcheck is not found.])])
AC_LANG_POP(C++)
fi
# Look for nlohmann/json.
PKG_CHECK_MODULES([NLOHMANN_JSON], [nlohmann_json >= 3.9])
# documentation generation switch
AC_ARG_ENABLE(doc-gen, AS_HELP_STRING([--disable-doc-gen],[disable documentation generation]),
doc_generate=$enableval, doc_generate=yes)
AC_SUBST(doc_generate)
# Look for lowdown library.
PKG_CHECK_MODULES([LOWDOWN], [lowdown >= 0.9.0], [CXXFLAGS="$LOWDOWN_CFLAGS $CXXFLAGS"])
# Look for toml11, a required dependency.
AC_ARG_VAR([TOML11_HEADERS], [include path of toml11 headers])
AC_LANG_PUSH(C++)
[CXXFLAGS="-I $TOML11_HEADERS $CXXFLAGS"]
AC_CHECK_HEADER([toml.hpp], [], [AC_MSG_ERROR([toml11 is not found.])])
AC_LANG_POP(C++)
# Setuid installations.
AC_CHECK_FUNCS([setresuid setreuid lchown])
# Nice to have, but not essential.
AC_CHECK_FUNCS([strsignal posix_fallocate sysconf])
AC_ARG_WITH(sandbox-shell, AS_HELP_STRING([--with-sandbox-shell=PATH],[path of a statically-linked shell to use as /bin/sh in sandboxes]),
sandbox_shell=$withval)
AC_SUBST(sandbox_shell)
if test ${cross_compiling:-no} = no && ! test -z ${sandbox_shell+x}; then
AC_MSG_CHECKING([whether sandbox-shell has the standalone feature])
# busybox shell sometimes allows executing other busybox applets,
# even if they are not in the path, breaking our sandbox
if PATH= $sandbox_shell -c "busybox" 2>&1 | grep -qv "not found"; then
AC_MSG_RESULT(enabled)
AC_MSG_ERROR([Please disable busybox FEATURE_SH_STANDALONE])
else
AC_MSG_RESULT(disabled)
fi
fi
AC_ARG_ENABLE(embedded-sandbox-shell, AS_HELP_STRING([--enable-embedded-sandbox-shell],[include the sandbox shell in the Nix binary [default=no]]),
embedded_sandbox_shell=$enableval, embedded_sandbox_shell=no)
AC_SUBST(embedded_sandbox_shell)
if test "$embedded_sandbox_shell" = yes; then
AC_DEFINE(HAVE_EMBEDDED_SANDBOX_SHELL, 1, [Include the sandbox shell in the Nix binary.])
fi
# Expand all variables in config.status.
test "$prefix" = NONE && prefix=$ac_default_prefix
test "$exec_prefix" = NONE && exec_prefix='${prefix}'
for name in $ac_subst_vars; do
declare $name="$(eval echo "${!name}")"
declare $name="$(eval echo "${!name}")"
declare $name="$(eval echo "${!name}")"
done
rm -f Makefile.config
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([])
AC_OUTPUT

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@ -1,19 +0,0 @@
.PHONY: internal-api-html
ifeq ($(internal_api_docs), yes)
$(docdir)/internal-api/html/index.html $(docdir)/internal-api/latex: $(d)/doxygen.cfg
mkdir -p $(docdir)/internal-api
{ cat $< ; echo "OUTPUT_DIRECTORY=$(docdir)/internal-api" ; } | doxygen -
# Generate the HTML API docs for Nix's unstable internal interfaces.
internal-api-html: $(docdir)/internal-api/html/index.html
else
# Make a nicer error message
internal-api-html:
@echo "Internal API docs are disabled. Configure with '--enable-internal-api-docs', or avoid calling 'make internal-api-html'."
@exit 1
endif

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@ -1,178 +0,0 @@
ifeq ($(doc_generate),yes)
# The version of Nix used to generate the doc. Can also be
# `$(nix_INSTALL_PATH)` or just `nix` (to grap ambient from the `PATH`),
# if one prefers.
doc_nix = $(nix_PATH)
MANUAL_SRCS := \
$(call rwildcard, $(d)/src, *.md) \
$(call rwildcard, $(d)/src, */*.md)
man-pages := $(foreach n, \
nix-env.1 nix-store.1 \
nix-build.1 nix-shell.1 nix-instantiate.1 \
nix-collect-garbage.1 \
nix-prefetch-url.1 nix-channel.1 \
nix-hash.1 nix-copy-closure.1 \
nix.conf.5 nix-daemon.8 \
nix-profiles.5 \
, doc/manual/generated/in/$(n))
# man pages for subcommands
# convert from `$(d)/src/command-ref/nix-{1}/{2}.md` to `$(d)/nix-{1}-{2}.1`
# FIXME: unify with how nix3-cli man pages are generated
man-pages += $(foreach subcommand, \
$(filter-out %opt-common.md %env-common.md, $(wildcard $(d)/src/command-ref/nix-*/*.md)), \
doc/manual/generated/in/$(subst /,-,$(subst $(d)/src/command-ref/,,$(subst .md,.1,$(subcommand)))))
clean-files += $(d)/*.1 $(d)/*.5 $(d)/*.8
# Provide a dummy environment for nix, so that it will not access files outside the macOS sandbox.
# Set cores to 0 because otherwise nix config show resolves the cores based on the current machine
dummy-env = env -i \
HOME=/dummy \
NIX_CONF_DIR=/dummy \
NIX_SSL_CERT_FILE=/dummy/no-ca-bundle.crt \
NIX_STATE_DIR=/dummy \
NIX_CONFIG='cores = 0'
nix-eval = $(dummy-env) $(doc_nix) eval --experimental-features nix-command -I nix/corepkgs=corepkgs --store dummy:// --impure --raw
doc/manual/generated/in/nix-env-%.1: doc/manual/generated/out
$(trace-gen) doc/manual/render-manpage.sh \
--out-no-smarty "$(subst nix-env-,nix-env --,$$(basename "$@" .1))" 1 \
doc/manual/generated/out/markdown/command-ref/nix-env/$*.md \
$@
doc/manual/generated/in/nix-store-%.1: doc/manual/generated/out
$(trace-gen) doc/manual/render-manpage.sh \
--out-no-smarty "$(subst nix-store-,nix-store --,$$(basename "$@" .1))" 1 \
doc/manual/generated/out/markdown/command-ref/nix-store/$*.md \
$@
doc/manual/generated/in/%.1: doc/manual/generated/out
$(trace-gen) doc/manual/render-manpage.sh "$$(basename $@ .1)" 1 \
doc/manual/generated/out/markdown/command-ref/$*.md \
$@
doc/manual/generated/in/%.8: doc/manual/generated/out
$(trace-gen) doc/manual/render-manpage.sh "$$(basename $@ .8)" 8 \
doc/manual/generated/out/markdown/command-ref/$*.md \
$@
doc/manual/generated/in/nix.conf.5: doc/manual/generated/out
$(trace-gen) doc/manual/render-manpage.sh "$$(basename $@ .5)" 5 \
doc/manual/generated/out/markdown/command-ref/conf-file.md \
$@
doc/manual/generated/in/nix-profiles.5: doc/manual/generated/out
$(trace-gen) doc/manual/render-manpage.sh "$$(basename $@ .5)" 5 \
doc/manual/generated/out/markdown/command-ref/files/profiles.md \
$@
doc/manual/generated/in/command-ref/new-cli: doc/manual/generated/in/nix.json $(d)/utils.nix $(d)/generate-manpage.nix $(doc_nix)
@mkdir -p doc/manual/generated/in/command-ref
@rm -rf $@ $@.tmp
$(trace-gen) $(nix-eval) --write-to $@.tmp --expr 'import doc/manual/generate-manpage.nix true (builtins.readFile $<)'
@mv $@.tmp $@
doc/manual/generated/in/command-ref/conf-file.md: doc/manual/generated/in/conf-file.json $(d)/utils.nix doc/manual/generated/in/command-ref/experimental-features-shortlist.md $(doc_nix)
@mkdir -p doc/manual/generated/in/command-ref
$(trace-gen) $(nix-eval) --expr '(import doc/manual/utils.nix).showSettings { inlineHTML = true; } (builtins.fromJSON (builtins.readFile $<))' >> $@
doc/manual/generated/in/nix.json: $(doc_nix)
@mkdir -p doc/manual/generated/in
$(trace-gen) $(dummy-env) $(doc_nix) __dump-cli > $@.tmp
@mv $@.tmp $@
doc/manual/generated/in/conf-file.json: $(doc_nix)
@mkdir -p doc/manual/generated/in
$(trace-gen) $(dummy-env) $(doc_nix) config show --json --experimental-features nix-command > $@.tmp
@mv $@.tmp $@
doc/manual/generated/in/contributing/experimental-feature-descriptions.md: doc/manual/generated/in/xp-features.json $(d)/utils.nix $(d)/generate-xp-features.nix $(doc_nix)
@mkdir -p doc/manual/generated/in/contributing
@rm -rf $@ $@.tmp
$(trace-gen) $(nix-eval) --write-to $@.tmp --expr 'import doc/manual/generate-xp-features.nix (builtins.fromJSON (builtins.readFile $<))'
@mv $@.tmp $@
doc/manual/generated/in/command-ref/experimental-features-shortlist.md: doc/manual/generated/in/xp-features.json $(d)/utils.nix $(d)/generate-xp-features-shortlist.nix $(doc_nix)
@mkdir -p doc/manual/generated/in/command-ref
@rm -rf $@ $@.tmp
$(trace-gen) $(nix-eval) --write-to $@.tmp --expr 'import doc/manual/generate-xp-features-shortlist.nix (builtins.fromJSON (builtins.readFile $<))'
@mv $@.tmp $@
doc/manual/generated/in/xp-features.json: $(doc_nix)
$(trace-gen) $(dummy-env) NIX_PATH=nix/corepkgs=corepkgs $(doc_nix) __dump-xp-features > $@.tmp
@mv $@.tmp $@
doc/manual/generated/in/language/builtins.md: doc/manual/generated/in/language.json $(d)/generate-builtins.nix $(doc_nix)
@mkdir -p doc/manual/generated/in/language
$(trace-gen) $(nix-eval) --expr 'import doc/manual/generate-builtins.nix (builtins.fromJSON (builtins.readFile $<)).builtins' >> $@
doc/manual/generated/in/language/builtin-constants.md: doc/manual/generated/in/language.json $(d)/generate-builtin-constants.nix $(doc_nix)
@mkdir -p doc/manual/generated/in/language
$(trace-gen) $(nix-eval) --expr 'import doc/manual/generate-builtin-constants.nix (builtins.fromJSON (builtins.readFile $<)).constants' >> $@
doc/manual/generated/in/language.json: $(doc_nix)
@mkdir -p doc/manual/generated/in
$(trace-gen) $(dummy-env) NIX_PATH=nix/corepkgs=corepkgs $(doc_nix) __dump-language > $@.tmp
@mv $@.tmp $@
# Generate "Upcoming release" notes (or clear it and remove from menu)
doc/manual/generated/in/release-notes/rl-next-generated.md: $(d)/rl-next $(d)/rl-next/*
@mkdir -p doc/manual/generated/in/release-notes
@if type -p build-release-notes > /dev/null; then \
echo " GEN " $@; \
build-release-notes doc/manual/rl-next > $@; \
else \
echo " NULL " $@; \
true > $@; \
fi
# Generate the HTML manual.
.PHONY: manual-html
manual-html: $(docdir)/manual/index.html
install: $(docdir)/manual/index.html
# Generate 'nix' manpages.
install: $(mandir)/man1/nix3-manpages
man: doc/manual/generated/man1/nix3-manpages
all: doc/manual/generated/man1/nix3-manpages
# FIXME: unify with how the other man pages are generated.
# this one works differently and does not use any of the amenities provided by `/mk/lib.mk`.
$(mandir)/man1/nix3-manpages: doc/manual/generated/man1/nix3-manpages
@mkdir -p $(DESTDIR)$$(dirname $@)
$(trace-install) install -m 0644 $$(dirname $<)/* $(DESTDIR)$$(dirname $@)
doc/manual/generated/man1/nix3-manpages: doc/manual/generated/out
@mkdir -p $(DESTDIR)$$(dirname $@)
$(trace-gen) for i in doc/manual/generated/out/markdown/command-ref/new-cli/*.md; do \
name=$$(basename $$i .md); \
tmpFile=$$(mktemp); \
if [[ $$name = SUMMARY ]]; then continue; fi; \
printf "Title: %s\n\n" "$$name" > $$tmpFile; \
cat $$i >> $$tmpFile; \
lowdown -sT man --nroff-nolinks -M section=1 $$tmpFile -o $(DESTDIR)$$(dirname $@)/$$name.1; \
rm $$tmpFile; \
done
@touch $@
doc/manual/generated/out: $(MANUAL_SRCS) $(d)/book.toml $(d)/anchors.jq $(d)/custom.css $(d)/src/SUMMARY.md doc/manual/generated/in/command-ref/new-cli doc/manual/generated/in/command-ref/experimental-features-shortlist.md doc/manual/generated/in/contributing/experimental-feature-descriptions.md doc/manual/generated/in/command-ref/conf-file.md doc/manual/generated/in/language/builtins.md doc/manual/generated/in/language/builtin-constants.md doc/manual/generated/in/release-notes/rl-next-generated.md $(d)/substitute.py
@rm -rf $@
$(trace-gen) \
MDBOOK_SUBSTITUTE_SEARCH=doc/manual/generated/in \
RUST_LOG=warn \
mdbook build doc/manual -d generated/out 2>&1 \
| { grep -Fv "because fragment resolution isn't implemented" || :; }
@find $@ -iname meson.build -delete
$(docdir)/manual/index.html: doc/manual/generated/out
@mkdir -p $(DESTDIR)$(docdir)
@rm -rf $(DESTDIR)$(docdir)/manual
@cp -r $</html $(DESTDIR)$(docdir)/manual
endif

View file

@ -403,19 +403,12 @@
# NixOS 24.05-pre, clang-tools is pinned to LLVM 14 when
# default LLVM is newer.
(pkgs.buildPackages.clang-tools.override { inherit (pkgs.buildPackages) llvmPackages; })
++ [
# FIXME(Qyriad): remove once the migration to Meson is complete.
pkgs.buildPackages.meson
pkgs.buildPackages.ninja
pkgs.buildPackages.cmake
]
++
lib.optionals (lib.meta.availableOn pkgs.stdenv.hostPlatform pkgs.buildPackages.clangbuildanalyzer)
[ pkgs.buildPackages.clangbuildanalyzer ];
src = null;
installFlags = "sysconfdir=$(out)/etc";
strictDeps = false;
shellHook = ''

View file

@ -1,17 +0,0 @@
# 2024-03-24: jade benchmarked the default sanitize reporting in clang and got
# a regression of about 10% on hackage-packages.nix with clang. So we are trapping instead.
#
# This has an overhead of 0-4% on gcc and unmeasurably little on clang, in
# Nix evaluation benchmarks.
DEFAULT_SANITIZE_FLAGS = -fsanitize=signed-integer-overflow -fsanitize-undefined-trap-on-error
GLOBAL_CXXFLAGS += -Wno-deprecated-declarations -Werror=switch $(DEFAULT_SANITIZE_FLAGS) -D_GLIBCXX_ASSERTIONS=1
GLOBAL_LDFLAGS += $(DEFAULT_SANITIZE_FLAGS)
# Allow switch-enum to be overridden for files that do not support it, usually because of dependency headers.
ERROR_SWITCH_ENUM = -Werror=switch-enum
$(foreach i, config.h $(wildcard src/lib*/*.hh), \
$(eval $(call install-file-in, $(i), $(includedir)/nix, 0644)))
$(GCH): src/libutil/util.hh config.h
GCH_CXXFLAGS = -I src/libutil

View file

@ -1,951 +0,0 @@
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional])
#
# DESCRIPTION
#
# Check for baseline language coverage in the compiler for the specified
# version of the C++ standard. If necessary, add switches to CXX and
# CXXCPP to enable support. VERSION may be '11' (for the C++11 standard)
# or '14' (for the C++14 standard).
#
# The second argument, if specified, indicates whether you insist on an
# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g.
# -std=c++11). If neither is specified, you get whatever works, with
# preference for an extended mode.
#
# The third argument, if specified 'mandatory' or if left unspecified,
# indicates that baseline support for the specified C++ standard is
# required and that the macro should error out if no mode with that
# support is found. If specified 'optional', then configuration proceeds
# regardless, after defining HAVE_CXX${VERSION} if and only if a
# supporting mode is found.
#
# LICENSE
#
# Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com>
# Copyright (c) 2012 Zack Weinberg <zackw@panix.com>
# Copyright (c) 2013 Roy Stogner <roystgnr@ices.utexas.edu>
# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
# Copyright (c) 2015 Paul Norman <penorman@mac.com>
# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu>
# Copyright (c) 2016, 2018 Krzesimir Nowak <qdlacz@gmail.com>
# Copyright (c) 2019 Enji Cooper <yaneurabeya@gmail.com>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 11
dnl This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
dnl (serial version number 13).
AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"],
[$1], [14], [ax_cxx_compile_alternatives="14 1y"],
[$1], [17], [ax_cxx_compile_alternatives="17 1z"],
[m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl
m4_if([$2], [], [],
[$2], [ext], [],
[$2], [noext], [],
[m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX])])dnl
m4_if([$3], [], [ax_cxx_compile_cxx$1_required=true],
[$3], [mandatory], [ax_cxx_compile_cxx$1_required=true],
[$3], [optional], [ax_cxx_compile_cxx$1_required=false],
[m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])])
AC_LANG_PUSH([C++])dnl
ac_success=no
m4_if([$2], [noext], [], [dnl
if test x$ac_success = xno; then
for alternative in ${ax_cxx_compile_alternatives}; do
switch="-std=gnu++${alternative}"
cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
$cachevar,
[ac_save_CXX="$CXX"
CXX="$CXX $switch"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
[eval $cachevar=yes],
[eval $cachevar=no])
CXX="$ac_save_CXX"])
if eval test x\$$cachevar = xyes; then
CXX="$CXX $switch"
if test -n "$CXXCPP" ; then
CXXCPP="$CXXCPP $switch"
fi
ac_success=yes
break
fi
done
fi])
m4_if([$2], [ext], [], [dnl
if test x$ac_success = xno; then
dnl HP's aCC needs +std=c++11 according to:
dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf
dnl Cray's crayCC needs "-h std=c++11"
for alternative in ${ax_cxx_compile_alternatives}; do
for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
$cachevar,
[ac_save_CXX="$CXX"
CXX="$CXX $switch"
AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
[eval $cachevar=yes],
[eval $cachevar=no])
CXX="$ac_save_CXX"])
if eval test x\$$cachevar = xyes; then
CXX="$CXX $switch"
if test -n "$CXXCPP" ; then
CXXCPP="$CXXCPP $switch"
fi
ac_success=yes
break
fi
done
if test x$ac_success = xyes; then
break
fi
done
fi])
AC_LANG_POP([C++])
if test x$ax_cxx_compile_cxx$1_required = xtrue; then
if test x$ac_success = xno; then
AC_MSG_ERROR([*** A compiler with support for C++$1 language features is required.])
fi
fi
if test x$ac_success = xno; then
HAVE_CXX$1=0
AC_MSG_NOTICE([No compiler with C++$1 support was found])
else
HAVE_CXX$1=1
AC_DEFINE(HAVE_CXX$1,1,
[define if the compiler supports basic C++$1 syntax])
fi
AC_SUBST(HAVE_CXX$1)
])
dnl Test body for checking C++11 support
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11],
_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
)
dnl Test body for checking C++14 support
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
_AX_CXX_COMPILE_STDCXX_testbody_new_in_14
)
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_17],
_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
_AX_CXX_COMPILE_STDCXX_testbody_new_in_14
_AX_CXX_COMPILE_STDCXX_testbody_new_in_17
)
dnl Tests for new features in C++11
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[
// If the compiler admits that it is not ready for C++11, why torture it?
// Hopefully, this will speed up the test.
#ifndef __cplusplus
#error "This is not a C++ compiler"
#elif __cplusplus < 201103L
#error "This is not a C++11 compiler"
#else
namespace cxx11
{
namespace test_static_assert
{
template <typename T>
struct check
{
static_assert(sizeof(int) <= sizeof(T), "not big enough");
};
}
namespace test_final_override
{
struct Base
{
virtual ~Base() {}
virtual void f() {}
};
struct Derived : public Base
{
virtual ~Derived() override {}
virtual void f() override {}
};
}
namespace test_double_right_angle_brackets
{
template < typename T >
struct check {};
typedef check<void> single_type;
typedef check<check<void>> double_type;
typedef check<check<check<void>>> triple_type;
typedef check<check<check<check<void>>>> quadruple_type;
}
namespace test_decltype
{
int
f()
{
int a = 1;
decltype(a) b = 2;
return a + b;
}
}
namespace test_type_deduction
{
template < typename T1, typename T2 >
struct is_same
{
static const bool value = false;
};
template < typename T >
struct is_same<T, T>
{
static const bool value = true;
};
template < typename T1, typename T2 >
auto
add(T1 a1, T2 a2) -> decltype(a1 + a2)
{
return a1 + a2;
}
int
test(const int c, volatile int v)
{
static_assert(is_same<int, decltype(0)>::value == true, "");
static_assert(is_same<int, decltype(c)>::value == false, "");
static_assert(is_same<int, decltype(v)>::value == false, "");
auto ac = c;
auto av = v;
auto sumi = ac + av + 'x';
auto sumf = ac + av + 1.0;
static_assert(is_same<int, decltype(ac)>::value == true, "");
static_assert(is_same<int, decltype(av)>::value == true, "");
static_assert(is_same<int, decltype(sumi)>::value == true, "");
static_assert(is_same<int, decltype(sumf)>::value == false, "");
static_assert(is_same<int, decltype(add(c, v))>::value == true, "");
return (sumf > 0.0) ? sumi : add(c, v);
}
}
namespace test_noexcept
{
int f() { return 0; }
int g() noexcept { return 0; }
static_assert(noexcept(f()) == false, "");
static_assert(noexcept(g()) == true, "");
}
namespace test_constexpr
{
template < typename CharT >
unsigned long constexpr
strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
{
return *s ? strlen_c_r(s + 1, acc + 1) : acc;
}
template < typename CharT >
unsigned long constexpr
strlen_c(const CharT *const s) noexcept
{
return strlen_c_r(s, 0UL);
}
static_assert(strlen_c("") == 0UL, "");
static_assert(strlen_c("1") == 1UL, "");
static_assert(strlen_c("example") == 7UL, "");
static_assert(strlen_c("another\0example") == 7UL, "");
}
namespace test_rvalue_references
{
template < int N >
struct answer
{
static constexpr int value = N;
};
answer<1> f(int&) { return answer<1>(); }
answer<2> f(const int&) { return answer<2>(); }
answer<3> f(int&&) { return answer<3>(); }
void
test()
{
int i = 0;
const int c = 0;
static_assert(decltype(f(i))::value == 1, "");
static_assert(decltype(f(c))::value == 2, "");
static_assert(decltype(f(0))::value == 3, "");
}
}
namespace test_uniform_initialization
{
struct test
{
static const int zero {};
static const int one {1};
};
static_assert(test::zero == 0, "");
static_assert(test::one == 1, "");
}
namespace test_lambdas
{
void
test1()
{
auto lambda1 = [](){};
auto lambda2 = lambda1;
lambda1();
lambda2();
}
int
test2()
{
auto a = [](int i, int j){ return i + j; }(1, 2);
auto b = []() -> int { return '0'; }();
auto c = [=](){ return a + b; }();
auto d = [&](){ return c; }();
auto e = [a, &b](int x) mutable {
const auto identity = [](int y){ return y; };
for (auto i = 0; i < a; ++i)
a += b--;
return x + identity(a + b);
}(0);
return a + b + c + d + e;
}
int
test3()
{
const auto nullary = [](){ return 0; };
const auto unary = [](int x){ return x; };
using nullary_t = decltype(nullary);
using unary_t = decltype(unary);
const auto higher1st = [](nullary_t f){ return f(); };
const auto higher2nd = [unary](nullary_t f1){
return [unary, f1](unary_t f2){ return f2(unary(f1())); };
};
return higher1st(nullary) + higher2nd(nullary)(unary);
}
}
namespace test_variadic_templates
{
template <int...>
struct sum;
template <int N0, int... N1toN>
struct sum<N0, N1toN...>
{
static constexpr auto value = N0 + sum<N1toN...>::value;
};
template <>
struct sum<>
{
static constexpr auto value = 0;
};
static_assert(sum<>::value == 0, "");
static_assert(sum<1>::value == 1, "");
static_assert(sum<23>::value == 23, "");
static_assert(sum<1, 2>::value == 3, "");
static_assert(sum<5, 5, 11>::value == 21, "");
static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");
}
// http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
// Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
// because of this.
namespace test_template_alias_sfinae
{
struct foo {};
template<typename T>
using member = typename T::member_type;
template<typename T>
void func(...) {}
template<typename T>
void func(member<T>*) {}
void test();
void test() { func<foo>(0); }
}
} // namespace cxx11
#endif // __cplusplus >= 201103L
]])
dnl Tests for new features in C++14
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[
// If the compiler admits that it is not ready for C++14, why torture it?
// Hopefully, this will speed up the test.
#ifndef __cplusplus
#error "This is not a C++ compiler"
#elif __cplusplus < 201402L
#error "This is not a C++14 compiler"
#else
namespace cxx14
{
namespace test_polymorphic_lambdas
{
int
test()
{
const auto lambda = [](auto&&... args){
const auto istiny = [](auto x){
return (sizeof(x) == 1UL) ? 1 : 0;
};
const int aretiny[] = { istiny(args)... };
return aretiny[0];
};
return lambda(1, 1L, 1.0f, '1');
}
}
namespace test_binary_literals
{
constexpr auto ivii = 0b0000000000101010;
static_assert(ivii == 42, "wrong value");
}
namespace test_generalized_constexpr
{
template < typename CharT >
constexpr unsigned long
strlen_c(const CharT *const s) noexcept
{
auto length = 0UL;
for (auto p = s; *p; ++p)
++length;
return length;
}
static_assert(strlen_c("") == 0UL, "");
static_assert(strlen_c("x") == 1UL, "");
static_assert(strlen_c("test") == 4UL, "");
static_assert(strlen_c("another\0test") == 7UL, "");
}
namespace test_lambda_init_capture
{
int
test()
{
auto x = 0;
const auto lambda1 = [a = x](int b){ return a + b; };
const auto lambda2 = [a = lambda1(x)](){ return a; };
return lambda2();
}
}
namespace test_digit_separators
{
constexpr auto ten_million = 100'000'000;
static_assert(ten_million == 100000000, "");
}
namespace test_return_type_deduction
{
auto f(int& x) { return x; }
decltype(auto) g(int& x) { return x; }
template < typename T1, typename T2 >
struct is_same
{
static constexpr auto value = false;
};
template < typename T >
struct is_same<T, T>
{
static constexpr auto value = true;
};
int
test()
{
auto x = 0;
static_assert(is_same<int, decltype(f(x))>::value, "");
static_assert(is_same<int&, decltype(g(x))>::value, "");
return x;
}
}
} // namespace cxx14
#endif // __cplusplus >= 201402L
]])
dnl Tests for new features in C++17
m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[
// If the compiler admits that it is not ready for C++17, why torture it?
// Hopefully, this will speed up the test.
#ifndef __cplusplus
#error "This is not a C++ compiler"
#elif __cplusplus < 201703L
#error "This is not a C++17 compiler"
#else
#include <initializer_list>
#include <utility>
#include <type_traits>
namespace cxx17
{
namespace test_constexpr_lambdas
{
constexpr int foo = [](){return 42;}();
}
namespace test::nested_namespace::definitions
{
}
namespace test_fold_expression
{
template<typename... Args>
int multiply(Args... args)
{
return (args * ... * 1);
}
template<typename... Args>
bool all(Args... args)
{
return (args && ...);
}
}
namespace test_extended_static_assert
{
static_assert (true);
}
namespace test_auto_brace_init_list
{
auto foo = {5};
auto bar {5};
static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value);
static_assert(std::is_same<int, decltype(bar)>::value);
}
namespace test_typename_in_template_template_parameter
{
template<template<typename> typename X> struct D;
}
namespace test_fallthrough_nodiscard_maybe_unused_attributes
{
int f1()
{
return 42;
}
[[nodiscard]] int f2()
{
[[maybe_unused]] auto unused = f1();
switch (f1())
{
case 17:
f1();
[[fallthrough]];
case 42:
f1();
}
return f1();
}
}
namespace test_extended_aggregate_initialization
{
struct base1
{
int b1, b2 = 42;
};
struct base2
{
base2() {
b3 = 42;
}
int b3;
};
struct derived : base1, base2
{
int d;
};
derived d1 {{1, 2}, {}, 4}; // full initialization
derived d2 {{}, {}, 4}; // value-initialized bases
}
namespace test_general_range_based_for_loop
{
struct iter
{
int i;
int& operator* ()
{
return i;
}
const int& operator* () const
{
return i;
}
iter& operator++()
{
++i;
return *this;
}
};
struct sentinel
{
int i;
};
bool operator== (const iter& i, const sentinel& s)
{
return i.i == s.i;
}
bool operator!= (const iter& i, const sentinel& s)
{
return !(i == s);
}
struct range
{
iter begin() const
{
return {0};
}
sentinel end() const
{
return {5};
}
};
void f()
{
range r {};
for (auto i : r)
{
[[maybe_unused]] auto v = i;
}
}
}
namespace test_lambda_capture_asterisk_this_by_value
{
struct t
{
int i;
int foo()
{
return [*this]()
{
return i;
}();
}
};
}
namespace test_enum_class_construction
{
enum class byte : unsigned char
{};
byte foo {42};
}
namespace test_constexpr_if
{
template <bool cond>
int f ()
{
if constexpr(cond)
{
return 13;
}
else
{
return 42;
}
}
}
namespace test_selection_statement_with_initializer
{
int f()
{
return 13;
}
int f2()
{
if (auto i = f(); i > 0)
{
return 3;
}
switch (auto i = f(); i + 4)
{
case 17:
return 2;
default:
return 1;
}
}
}
namespace test_template_argument_deduction_for_class_templates
{
template <typename T1, typename T2>
struct pair
{
pair (T1 p1, T2 p2)
: m1 {p1},
m2 {p2}
{}
T1 m1;
T2 m2;
};
void f()
{
[[maybe_unused]] auto p = pair{13, 42u};
}
}
namespace test_non_type_auto_template_parameters
{
template <auto n>
struct B
{};
B<5> b1;
B<'a'> b2;
}
namespace test_structured_bindings
{
int arr[2] = { 1, 2 };
std::pair<int, int> pr = { 1, 2 };
auto f1() -> int(&)[2]
{
return arr;
}
auto f2() -> std::pair<int, int>&
{
return pr;
}
struct S
{
int x1 : 2;
volatile double y1;
};
S f3()
{
return {};
}
auto [ x1, y1 ] = f1();
auto& [ xr1, yr1 ] = f1();
auto [ x2, y2 ] = f2();
auto& [ xr2, yr2 ] = f2();
const auto [ x3, y3 ] = f3();
}
namespace test_exception_spec_type_system
{
struct Good {};
struct Bad {};
void g1() noexcept;
void g2();
template<typename T>
Bad
f(T*, T*);
template<typename T1, typename T2>
Good
f(T1*, T2*);
static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);