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configure.ac
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configure.ac
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dnl == autoconf source for the Glasgow FP tools ==
dnl (run "grep '^dnl \*' configure.ac | sed -e 's/dnl / /g; s/\*\*/ +/g;'"
dnl (or some such) to see the outline of this file)
dnl
#
# (c) The University of Glasgow 1994-2012
#
# Configure script template for GHC
#
# Process with 'autoreconf' to get a working configure script.
#
# For the generated configure script, do "./configure --help" to
# see what flags are available. (Better yet, read the documentation!)
#
AC_INIT([The Glorious Glasgow Haskell Compilation System], [9.11], [[email protected]], [ghc-AC_PACKAGE_VERSION])
# Version on master must be X.Y (not X.Y.Z) for ProjectVersionMunged variable
# to be useful (cf #19058). However, the version must have three components
# (X.Y.Z) on stable branches (e.g. ghc-9.2) to ensure that pre-releases are
# versioned correctly.
AC_CONFIG_MACRO_DIRS([m4])
# Set this to YES for a released version, otherwise NO
: ${RELEASE=NO}
# The primary version (e.g. 7.5, 7.4.1) is set in the AC_INIT line
# above. If this is not a released version, then we will append the
# date to the version number (e.g. 7.4.20111220). The date is
# constructed by finding the date of the most recent patch in the
# git repository. If this is a source distribution (not a git
# checkout), then we ship a file 'VERSION' containing the full version
# when the source distribution was created.
if test ! -f rts/ghcautoconf.h.autoconf.in; then
echo "rts/ghcautoconf.h.autoconf.in doesn't exist: perhaps you haven't run 'python3 boot'?"
exit 1
fi
dnl this makes sure `./configure --target=<cross-compile-target>`
dnl works as expected, since we're slightly modifying how Autoconf
dnl interprets build/host/target and how this interacts with $CC tests
test -n "$target_alias" && ac_tool_prefix=$target_alias-
dnl ----------------------------------------------------------
dnl ** Store USER specified environment variables to pass them on to
dnl ** ghc-toolchain (in m4/ghc-toolchain.m4)
USER_CFLAGS="$CFLAGS"
USER_LDFLAGS="$LDFLAGS"
USER_LIBS="$LIBS"
USER_CXXFLAGS="$CXXFLAGS"
dnl The lower-level/not user-facing environment variables that may still be set
dnl by developers such as in ghc-wasm-meta
USER_CONF_CC_OPTS_STAGE2="$CONF_CC_OPTS_STAGE2"
USER_CONF_CXX_OPTS_STAGE2="$CONF_CXX_OPTS_STAGE2"
USER_CONF_GCC_LINKER_OPTS_STAGE2="$CONF_GCC_LINKER_OPTS_STAGE2"
USER_LD="$LD"
dnl ----------------------------------------------------------
dnl ** Find unixy sort and find commands,
dnl ** which are needed by FP_SETUP_PROJECT_VERSION
dnl ** Find find command (for Win32's benefit)
FP_PROG_FIND
FP_PROG_SORT
dnl ----------------------------------------------------------
FP_SETUP_PROJECT_VERSION
# Hmmm, we fix the RPM release number to 1 here... Is this convenient?
AC_SUBST([release], [1])
dnl * We require autoconf version 2.69 due to
dnl https://bugs.ruby-lang.org/issues/8179. Also see #14910.
dnl * We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
dnl * We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
dnl * Using autoconf 2.59 started to give nonsense like this
dnl #define SIZEOF_CHAR 0
dnl recently.
AC_PREREQ([2.69])
# No, semi-sadly, we don't do `--srcdir'...
if test x"$srcdir" != 'x.' ; then
echo "This configuration does not support the \`--srcdir' option.."
exit 1
fi
dnl --------------------------------------------------------------
dnl * Project specific configuration options
dnl --------------------------------------------------------------
dnl What follows is a bunch of options that can either be configured
dnl through command line options to the configure script or by
dnl supplying defns in the build tree's mk/build.mk. Having the option to
dnl use either is considered a Feature.
dnl ** What command to use to compile compiler sources ?
dnl --------------------------------------------------------------
AC_ARG_VAR(GHC,[Use as the full path to GHC. [default=autodetect]])
AC_PATH_PROG([GHC], [ghc])
AC_ARG_WITH([ghc],
AS_HELP_STRING([--with-ghc=PATH], [Use PATH as the full path to ghc (obsolete, use GHC=PATH instead) [default=autodetect]]),
AC_MSG_ERROR([--with-ghc=$withval is obsolete (use './configure GHC=$withval' or 'GHC=$withval ./configure' instead)]))
AC_SUBST(WithGhc,$GHC)
AC_ARG_ENABLE(bootstrap-with-devel-snapshot,
[AS_HELP_STRING([--enable-bootstrap-with-devel-snapshot],
[Allow bootstrapping using a development snapshot of GHC. This is not guaranteed to work.])],
[FP_CAPITALIZE_YES_NO(["$enableval"], [EnableBootstrapWithDevelSnaphost])],
[EnableBootstrapWithDevelSnaphost=NO]
)
AC_ARG_ENABLE(ignore-build-platform-mismatch,
[AS_HELP_STRING([--ignore-build-platform-mismatch],
[Ignore when the target platform reported by the bootstrap compiler doesn''t match the configured build platform. This flag is used to correct mistakes when the target platform is incorrectly reported by the bootstrap (#25200). ])],
[FP_CAPITALIZE_YES_NO(["$enableval"], [IgnoreBuildPlatformMismatch])],
[IgnoreBuildPlatformMismatch=NO]
)
AC_ARG_ENABLE(tarballs-autodownload,
[AS_HELP_STRING([--enable-tarballs-autodownload],
[Automatically download Windows distribution binaries if needed.])],
[FP_CAPITALIZE_YES_NO(["$enableval"], [TarballsAutodownload])],
[TarballsAutodownload=NO]
)
AC_ARG_ENABLE(distro-toolchain,
[AS_HELP_STRING([--enable-distro-toolchain],
[Do not use bundled Windows toolchain binaries.])],
[FP_CAPITALIZE_YES_NO(["$enableval"], [EnableDistroToolchain])],
[EnableDistroToolchain=NO]
)
if test "$EnableDistroToolchain" = "YES"; then
TarballsAutodownload=NO
fi
AC_ARG_ENABLE(ghc-toolchain,
[AS_HELP_STRING([--enable-ghc-toolchain],
[Whether to use the newer ghc-toolchain tool to configure ghc targets])],
[FP_CAPITALIZE_YES_NO(["$enableval"], [EnableGhcToolchain])],
[EnableGhcToolchain=NO]
)
AC_SUBST([EnableGhcToolchain])
AC_ARG_ENABLE(strict-ghc-toolchain-check,
[AS_HELP_STRING([--enable-strict-ghc-toolchain-check],
[Whether to raise an error if the output of ghc-toolchain differs from configure])],
[FP_CAPITALIZE_YES_NO(["$enableval"], [EnableStrictGhcToolchainCheck])],
[EnableStrictGhcToolchainCheck=NO]
)
AC_SUBST([EnableStrictGhcToolchainCheck])
dnl CC_STAGE0, LD_STAGE0, AR_STAGE0 are like the "previous" variable
dnl CC, LD, AR (inherited by CC_STAGE[123], etc.)
dnl but instead used by stage0 for bootstrapping stage1
AC_ARG_VAR(CC_STAGE0, [C compiler command (bootstrap)])
AC_ARG_VAR(LD_STAGE0, [Linker command (bootstrap)])
AC_ARG_VAR(AR_STAGE0, [Archive command (bootstrap)])
dnl RTS ways supplied by the bootstrapping compiler.
AC_ARG_VAR(RTS_WAYS_STAGE0, [RTS ways])
if test "$WithGhc" != ""; then
FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
if test "$GhcMajVersion" = "unknown" || test "$GhcMinVersion" = "unknown"; then
AC_MSG_ERROR([Cannot determine the version of $WithGhc. Is it really GHC?])
fi
AC_SUBST(GhcVersion)dnl
AC_SUBST(GhcMajVersion)dnl
AC_SUBST(GhcMinVersion)dnl
AC_SUBST(GhcPatchLevel)dnl
GhcMinVersion2=`echo "$GhcMinVersion" | sed 's/^\\(.\\)$/0\\1/'`
GhcCanonVersion="$GhcMajVersion$GhcMinVersion2"
dnl infer {CC,LD,AR}_STAGE0 from `ghc --info` unless explicitly set by user
if test -z "$CC_STAGE0"; then
BOOTSTRAPPING_GHC_INFO_FIELD([CC_STAGE0],[C compiler command])
fi
if test -z "$LD_STAGE0"; then
BOOTSTRAPPING_GHC_INFO_FIELD([LD_STAGE0],[ld command])
# ld command is removed in 9.10.1 as a boot compiler and supplies "Merge objects
# command" instead
if test -z "$LD_STAGE0"; then
BOOTSTRAPPING_GHC_INFO_FIELD([LD_STAGE0],[Merge objects command])
fi
fi
if test -z "$AR_STAGE0"; then
BOOTSTRAPPING_GHC_INFO_FIELD([AR_STAGE0],[ar command])
fi
BOOTSTRAPPING_GHC_INFO_FIELD([AR_OPTS_STAGE0],[ar flags])
BOOTSTRAPPING_GHC_INFO_FIELD([ArSupportsAtFile_STAGE0],[ar supports at file])
BOOTSTRAPPING_GHC_INFO_FIELD([ArSupportsDashL_STAGE0],[ar supports -L])
BOOTSTRAPPING_GHC_INFO_FIELD([SUPPORT_SMP_STAGE0],[Support SMP])
BOOTSTRAPPING_GHC_INFO_FIELD([RTS_WAYS_STAGE0],[RTS ways])
dnl Check whether or not the bootstrapping GHC has a threaded RTS. This
dnl determines whether or not we can have a threaded stage 1.
dnl See Note [Linking ghc-bin against threaded stage0 RTS] in
dnl hadrian/src/Settings/Packages.hs for details.
dnl SMP support which implies a registerised stage0 is also required (see issue 18266)
if echo ${RTS_WAYS_STAGE0} | tr ' ' '\n' | grep '^thr$' 2>&1 >/dev/null && \
test "$SUPPORT_SMP_STAGE0" = "YES"
then
AC_SUBST(GhcThreadedRts, YES)
else
AC_SUBST(GhcThreadedRts, NO)
fi
fi
dnl ** Must have GHC to build GHC
if test "$WithGhc" = ""
then
AC_MSG_ERROR([GHC is required.])
fi
MinBootGhcVersion="9.6"
FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[$MinBootGhcVersion],
[AC_MSG_ERROR([GHC version $MinBootGhcVersion or later is required to compile GHC.])])
if test `expr $GhcMinVersion % 2` = "1"
then
if test "$EnableBootstrapWithDevelSnaphost" = "NO"
then
AC_MSG_ERROR([
$WithGhc is a development snapshot of GHC, version $GhcVersion.
Bootstrapping using this version of GHC is not supported, and may not
work. Use --enable-bootstrap-with-devel-snapshot to try it anyway,
or 'GHC=' to specify a different GHC to use.])
fi
fi
# GHC is passed to Cabal, so we need a native path
if test "${WithGhc}" != ""
then
ghc_host_os=`"${WithGhc}" +RTS --info | grep 'Host OS' | sed -e 's/.*, "//' -e 's/")//'`
if test "$ghc_host_os" = "mingw32"
then
if test "${OSTYPE}" = "msys"
then
WithGhc=`echo "${WithGhc}" | sed "s#^/\([a-zA-Z]\)/#\1:/#"`
else
# Canonicalise to <drive>:/path/to/ghc
WithGhc=`cygpath -m "${WithGhc}"`
fi
echo "GHC path canonicalised to: ${WithGhc}"
fi
fi
AC_SUBST([WithGhc])
dnl ** Without optimization some INLINE trickery fails for GHCi
SRC_CC_OPTS="-O"
dnl--------------------------------------------------------------------
dnl * Choose host(/target/build) platform
dnl--------------------------------------------------------------------
dnl If we aren't explicitly told what values to use with configure flags,
dnl we ask the bootstrapping compiler what platform it is for
if test "${WithGhc}" != ""
then
bootstrap_host=`"${WithGhc}" +RTS --info | grep '^ ,("Host platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
bootstrap_target=`"${WithGhc}" +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
if test "$bootstrap_host" != "$bootstrap_target"
then
echo "Bootstrapping GHC is a cross compiler. This probably isn't going to work"
fi
fi
# We have to run these unconditionally, but we may discard their
# results in the following code
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
FPTOOLS_SET_PLATFORMS_VARS
FP_PROG_SH
# Verify that the installed (bootstrap) GHC is capable of generating
# code for the requested build platform.
if test "$BuildPlatform" != "$bootstrap_target"
then
if test "$IgnoreBuildPlatformMismatch" = "NO"
then
echo "This GHC (${WithGhc}) does not generate code for the build platform"
echo " GHC target platform : $bootstrap_target"
echo " Desired build platform : $BuildPlatform"
exit 1
fi
fi
dnl ** Do an unregisterised build?
dnl --------------------------------------------------------------
GHC_UNREGISTERISED
AC_SUBST(Unregisterised)
dnl ** Do a build with tables next to code?
dnl --------------------------------------------------------------
GHC_TABLES_NEXT_TO_CODE
AC_SUBST(TablesNextToCode)
# Requires FPTOOLS_SET_PLATFORMS_VARS to be run first.
FP_FIND_ROOT
# Extract and configure the Windows toolchain
if test "$HostOS" = "mingw32" -a "$EnableDistroToolchain" = "NO"; then
FP_INSTALL_WINDOWS_TOOLCHAIN
FP_SETUP_WINDOWS_TOOLCHAIN([$hardtop/inplace/mingw], [$hardtop/inplace/mingw])
else
AC_CHECK_TOOL([CC],[gcc], [clang])
AC_CHECK_TOOL([CXX],[g++], [clang++])
AC_CHECK_TOOL([NM],[nm])
# N.B. we don't probe for LD here but instead
# do so in FIND_LD to avoid #21778.
AC_CHECK_TOOL([AR],[ar])
AC_CHECK_TOOL([RANLIB],[ranlib])
AC_CHECK_TOOL([OBJDUMP],[objdump])
AC_CHECK_TOOL([WindresCmd],[windres])
AC_CHECK_TOOL([Genlib],[genlib])
if test "$HostOS" = "mingw32"; then
AC_CHECK_TARGET_TOOL([WindresCmd],[windres])
AC_CHECK_TARGET_TOOL([OBJDUMP],[objdump])
WindresCmd="$(cygpath -m $WindresCmd)"
if test "$Genlib" != ""; then
GenlibCmd="$(cygpath -m $Genlib)"
fi
fi
fi
FP_ICONV
FP_GMP
FP_CURSES
dnl On Windows we force in-tree GMP build until we support dynamic linking
if test "$HostOS" = "mingw32"
then
GMP_FORCE_INTREE="YES"
fi
dnl ** Building a cross compiler?
dnl --------------------------------------------------------------
CrossCompiling=NO
# If 'host' and 'target' differ, then this means we are building a cross-compiler.
if test "$target" != "$host" ; then
CrossCompiling=YES
cross_compiling=yes # This tells configure that it can accept just 'target',
# otherwise you get
# configure: error: cannot run C compiled programs.
# If you meant to cross compile, use `--host'.
fi
if test "$BuildPlatform" != "$HostPlatform" ; then
AC_MSG_ERROR([
You've selected:
BUILD: $BuildPlatform (the architecture we're building on)
HOST: $HostPlatform (the architecture the compiler we're building will execute on)
TARGET: $TargetPlatform (the architecture the compiler we're building will produce code for)
BUILD must equal HOST; that is, we do not support building GHC itself
with a cross-compiler. To cross-compile GHC itself, set TARGET: stage
1 will be a cross-compiler, and stage 2 will be the cross-compiled
GHC.
])
fi
# Despite its similarity in name to TargetPlatform, TargetPlatformFull is used
# in calls to subproject configure scripts and thus must be set to the autoconf
# triple, not the normalized GHC triple that TargetPlatform is set to.
#
# We use the non-canonicalized triple, target_alias, here since the subproject
# configure scripts will use this triple to construct the names of the toolchain
# executables. If we instead passed down the triple produced by
# AC_CANONICAL_TARGET then it may look for the target toolchain under the wrong
# name (this is a known problem in the case of the Android NDK, which has
# slightly odd triples).
#
# It may be better to just do away with the GHC triples altogether. This would
# all be taken care of for us if we configured the subprojects using
# AC_CONFIG_DIR, but unfortunately Cabal needs to be the one to do the
# configuration.
#
# We also use non-canonicalized triple when install stage1 crosscompiler
if test -z "${target_alias}"
then
# --target wasn't given; use result from AC_CANONICAL_TARGET
TargetPlatformFull="${target}"
else
TargetPlatformFull="${target_alias}"
fi
AC_SUBST(CrossCompiling)
AC_SUBST(TargetPlatformFull)
dnl ** Which gcc to use?
dnl --------------------------------------------------------------
AC_ARG_WITH([gcc],
AS_HELP_STRING([--with-gcc=ARG], [Use ARG as the path to gcc (obsolete, use CC=ARG instead) [default=autodetect]]),
AC_MSG_ERROR([--with-gcc=$withval is obsolete (use './configure CC=$withval' or 'CC=$withval ./configure' instead)]))
AC_ARG_WITH([clang],
AS_HELP_STRING([--with-clang=ARG], [Use ARG as the path to clang (obsolete, use CC=ARG instead) [default=autodetect]]),
AC_MSG_ERROR([--with-clang=$withval is obsolete (use './configure CC=$withval' or 'CC=$withval ./configure' instead)]))
dnl detect compiler (prefer gcc over clang) and set $CC (unless CC already set),
dnl later CC is copied to CC_STAGE{1,2,3}
AC_PROG_CC([cc gcc clang])
AC_PROG_CXX([g++ clang++ c++])
# Work around #24324
MOVE_TO_FLAGS([CC],[CFLAGS])
MOVE_TO_FLAGS([CXX],[CXXFLAGS])
MAYBE_OVERRIDE_STAGE0([ar],[AR_STAGE0])
dnl make extensions visible to allow feature-tests to detect them lateron
AC_USE_SYSTEM_EXTENSIONS
# --with-hs-cpp/--with-hs-cpp-flags
FP_HSCPP_CMD_WITH_ARGS(HaskellCPPCmd, HaskellCPPArgs)
AC_SUBST([HaskellCPPCmd])
AC_SUBST([HaskellCPPArgs])
# --with-js-cpp/--with-js-cpp-flags
FP_JSCPP_CMD_WITH_ARGS(JavaScriptCPPCmd, JavaScriptCPPArgs)
AC_SUBST([JavaScriptCPPCmd])
AC_SUBST([JavaScriptCPPArgs])
# --with-cmm-cpp/--with-cmm-cpp-flags
FP_CMM_CPP_CMD_WITH_ARGS([$CC_STAGE0], [CmmCPPCmd_STAGE0], [CmmCPPArgs_STAGE0], [CmmCPPSupportsG0_STAGE0])
AC_SUBST([CmmCPPCmd_STAGE0])
AC_SUBST([CmmCPPArgs_STAGE0])
AC_SUBST([CmmCPPSupportsG0_STAGE0])
FP_CMM_CPP_CMD_WITH_ARGS([$CC], [CmmCPPCmd], [CmmCPPArgs], [CmmCPPSupportsG0])
AC_SUBST([CmmCPPCmd])
AC_SUBST([CmmCPPArgs])
AC_SUBST([CmmCPPSupportsG0])
FP_SET_CFLAGS_C99([CC],[CFLAGS],[CPPFLAGS])
FP_SET_CFLAGS_C99([CC_STAGE0],[CONF_CC_OPTS_STAGE0],[CONF_CPP_OPTS_STAGE0])
FP_SET_CFLAGS_C99([CC],[CONF_CC_OPTS_STAGE1],[CONF_CPP_OPTS_STAGE1])
FP_SET_CFLAGS_C99([CC],[CONF_CC_OPTS_STAGE2],[CONF_CPP_OPTS_STAGE2])
dnl ** Do we have a compatible emsdk version?
dnl --------------------------------------------------------------
EMSDK_VERSION("3.1.20", "", "")
dnl ** Which ld to use
dnl --------------------------------------------------------------
AC_ARG_VAR(LD,[Use as the path to ld. See also --disable-ld-override.])
FIND_LD([$target],[GccUseLdOpt])
FIND_MERGE_OBJECTS()
CONF_GCC_LINKER_OPTS_STAGE1="$CONF_GCC_LINKER_OPTS_STAGE1 $GccUseLdOpt"
CONF_GCC_LINKER_OPTS_STAGE2="$CONF_GCC_LINKER_OPTS_STAGE2 $GccUseLdOpt"
CFLAGS="$CFLAGS $GccUseLdOpt"
FP_PROG_LD_IS_GNU
FP_PROG_LD_NO_COMPACT_UNWIND
FP_PROG_LD_FILELIST
FP_PROG_LD_SINGLE_MODULE
dnl ** Which nm to use?
dnl --------------------------------------------------------------
FP_FIND_NM
dnl ** Which objdump to use?
dnl --------------------------------------------------------------
dnl Note: we may not have objdump on OS X, and we only need it on
dnl Windows (for DLL checks), OpenBSD, and AIX
case $HostOS_CPP in
cygwin32|mingw32|openbsd|aix)
AC_CHECK_TARGET_TOOL([OBJDUMP], [objdump])
;;
esac
if test "$HostOS" = "mingw32"
then
ObjdumpCmd=$(cygpath -m "$OBJDUMP")
else
ObjdumpCmd="$OBJDUMP"
fi
AC_SUBST([ObjdumpCmd])
dnl ** Which ranlib to use?
dnl --------------------------------------------------------------
AC_PROG_RANLIB
if test "$RANLIB" = ":"; then
AC_MSG_ERROR([cannot find ranlib in your PATH])
fi
if test "$HostOS" = "mingw32"
then
RanlibCmd=$(cygpath -m "$RANLIB")
else
RanlibCmd="$RANLIB"
fi
AC_SUBST([RanlibCmd])
dnl ** which strip to use?
dnl --------------------------------------------------------------
AC_CHECK_TARGET_TOOL([STRIP], [strip])
StripCmd="$STRIP"
AC_SUBST([StripCmd])
dnl ** Which otool to use on macOS
dnl --------------------------------------------------------------
AC_CHECK_TARGET_TOOL([OTOOL], [otool])
OtoolCmd="$OTOOL"
AC_SUBST(OtoolCmd)
dnl ** Which install_name_tool to use on macOS
dnl --------------------------------------------------------------
AC_CHECK_TARGET_TOOL([INSTALL_NAME_TOOL], [install_name_tool])
InstallNameToolCmd="$INSTALL_NAME_TOOL"
AC_SUBST(InstallNameToolCmd)
# Here is where we re-target which specific version of the LLVM
# tools we are looking for. In the past, GHC supported a number of
# versions of LLVM simultaneously, but that stopped working around
# 3.5/3.6 release of LLVM.
LlvmMinVersion=13 # inclusive
LlvmMaxVersion=19 # not inclusive
AC_SUBST([LlvmMinVersion])
AC_SUBST([LlvmMaxVersion])
ConfiguredEmsdkVersion="${EmsdkVersion}"
AC_SUBST([ConfiguredEmsdkVersion])
dnl ** Which LLVM llc to use?
dnl --------------------------------------------------------------
AC_ARG_VAR(LLC,[Use as the path to LLVM's llc [default=autodetect]])
FIND_LLVM_PROG([LLC], [llc], [$LlvmMinVersion], [$LlvmMaxVersion])
LlcCmd="$LLC"
AC_SUBST([LlcCmd])
dnl ** Which LLVM opt to use?
dnl --------------------------------------------------------------
AC_ARG_VAR(OPT,[Use as the path to LLVM's opt [default=autodetect]])
FIND_LLVM_PROG([OPT], [opt], [$LlvmMinVersion], [$LlvmMaxVersion])
OptCmd="$OPT"
AC_SUBST([OptCmd])
dnl ** Which LLVM assembler to use?
dnl --------------------------------------------------------------
AC_ARG_VAR(LLVMAS,[Use as the path to LLVM's assembler (typically clang) [default=autodetect]])
FIND_LLVM_PROG([LLVMAS], [clang], [$LlvmMinVersion], [$LlvmMaxVersion])
LlvmAsCmd="$LLVMAS"
AC_SUBST([LlvmAsCmd])
dnl --------------------------------------------------------------
dnl End of configure script option section
dnl --------------------------------------------------------------
dnl ** Copy headers shared by the RTS and compiler
dnl --------------------------------------------------------------
dnl We can't commit symlinks without breaking Windows in the default
dnl configuration.
AC_MSG_NOTICE([Creating links for headers shared by the RTS and compiler])
ln -f rts/include/rts/Bytecodes.h compiler/
ln -f rts/include/rts/storage/ClosureTypes.h compiler/
ln -f rts/include/rts/storage/FunTypes.h compiler/
ln -f rts/include/stg/MachRegs.h compiler/
mkdir -p compiler/MachRegs
ln -f rts/include/stg/MachRegs/arm32.h compiler/MachRegs/arm32.h
ln -f rts/include/stg/MachRegs/arm64.h compiler/MachRegs/arm64.h
ln -f rts/include/stg/MachRegs/loongarch64.h compiler/MachRegs/loongarch64.h
ln -f rts/include/stg/MachRegs/ppc.h compiler/MachRegs/ppc.h
ln -f rts/include/stg/MachRegs/riscv64.h compiler/MachRegs/riscv64.h
ln -f rts/include/stg/MachRegs/s390x.h compiler/MachRegs/s390x.h
ln -f rts/include/stg/MachRegs/wasm32.h compiler/MachRegs/wasm32.h
ln -f rts/include/stg/MachRegs/x86.h compiler/MachRegs/x86.h
AC_MSG_NOTICE([done.])
dnl ** Copy the files from the "fs" utility into the right folders.
dnl --------------------------------------------------------------
AC_MSG_NOTICE([Creating links for in-tree file handling routines])
ln -f utils/fs/fs.* utils/unlit/
ln -f utils/fs/fs.* rts/
ln -f utils/fs/fs.h libraries/ghc-internal/include/
ln -f utils/fs/fs.c libraries/ghc-internal/cbits/
AC_MSG_NOTICE([Routines in place. Packages can now be build normally.])
dnl ** Copy files for ghci wrapper C utilities.
dnl --------------------------------------------------------------
dnl See Note [Hadrian's ghci-wrapper package] in hadrian/src/Packages.hs
AC_MSG_NOTICE([Creating links for ghci wrapper])
ln -f driver/utils/getLocation.c driver/ghci/
ln -f driver/utils/getLocation.h driver/ghci/
ln -f driver/utils/isMinTTY.c driver/ghci/
ln -f driver/utils/isMinTTY.h driver/ghci/
ln -f driver/utils/cwrapper.c driver/ghci/
ln -f driver/utils/cwrapper.h driver/ghci/
AC_MSG_NOTICE([done.])
dnl --------------------------------------------------------------
dnl ** Can the unix package be built?
dnl --------------------------------------------------------------
dnl ** does #! work?
AC_SYS_INTERPRETER()
dnl ** look for GCC and find out which version
dnl Figure out which C compiler to use. Gcc is preferred.
dnl If gcc, make sure it's at least 4.7
dnl
FP_GCC_VERSION
dnl ** Check support for the extra flags passed by GHC when compiling via C
FP_GCC_SUPPORTS_VIA_C_FLAGS
dnl ** Used to determine how to compile ghc-prim's atomics.c, used by
dnl unregisterised, Sparc, and PPC backends. Also determines whether
dnl linking to libatomic is required for atomic operations, e.g. on
dnl RISCV64 GCC.
FP_CC_SUPPORTS__ATOMICS
if test "$need_latomic" = 1; then
AC_SUBST([NeedLibatomic],[YES])
else
AC_SUBST([NeedLibatomic],[NO])
fi
dnl ** look to see if we have a C compiler using an llvm back end.
dnl
FP_CC_LLVM_BACKEND
AC_SUBST(CcLlvmBackend)
FPTOOLS_SET_C_LD_FLAGS([target],[CFLAGS],[LDFLAGS],[IGNORE_LINKER_LD_FLAGS],[CPPFLAGS])
FPTOOLS_SET_C_LD_FLAGS([build],[CONF_CC_OPTS_STAGE0],[CONF_GCC_LINKER_OPTS_STAGE0],[CONF_LD_LINKER_OPTS_STAGE0],[CONF_CPP_OPTS_STAGE0])
FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE1],[CONF_GCC_LINKER_OPTS_STAGE1],[CONF_LD_LINKER_OPTS_STAGE1],[CONF_CPP_OPTS_STAGE1])
FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE2],[CONF_GCC_LINKER_OPTS_STAGE2],[CONF_LD_LINKER_OPTS_STAGE2],[CONF_CPP_OPTS_STAGE2])
# Stage 3 won't be supported by cross-compilation
#-no_fixup_chains
FP_LD_NO_FIXUP_CHAINS([target], [LDFLAGS])
FP_LD_NO_FIXUP_CHAINS([build], [CONF_GCC_LINKER_OPTS_STAGE0])
FP_LD_NO_FIXUP_CHAINS([target], [CONF_GCC_LINKER_OPTS_STAGE1])
FP_LD_NO_FIXUP_CHAINS([target], [CONF_GCC_LINKER_OPTS_STAGE2])
#-no_warn_duplicate_libraries
FP_LD_NO_WARN_DUPLICATE_LIBRARIES([build], [CONF_GCC_LINKER_OPTS_STAGE0])
FP_LD_NO_WARN_DUPLICATE_LIBRARIES([target], [CONF_GCC_LINKER_OPTS_STAGE1])
FP_LD_NO_WARN_DUPLICATE_LIBRARIES([target], [CONF_GCC_LINKER_OPTS_STAGE2])
FP_MERGE_OBJECTS_SUPPORTS_RESPONSE_FILES
GHC_LLVM_TARGET_SET_VAR
# The target is substituted into the distrib/configure.ac file
AC_SUBST(LlvmTarget)
dnl ** See whether cc supports --target=<triple> and set
dnl CONF_CC_OPTS_STAGE[012] accordingly.
FP_CC_SUPPORTS_TARGET([$CC_STAGE0], [CONF_CC_OPTS_STAGE0], [CONF_CXX_OPTS_STAGE0])
FP_CC_SUPPORTS_TARGET([$CC], [CONF_CC_OPTS_STAGE1], [CONF_CXX_OPTS_STAGE1])
FP_CC_SUPPORTS_TARGET([$CC], [CONF_CC_OPTS_STAGE2], [CONF_CXX_OPTS_STAGE2])
FP_PROG_CC_LINKER_TARGET([$CC_STAGE0], [CONF_CC_OPTS_STAGE0], [CONF_GCC_LINKER_OPTS_STAGE0])
FP_PROG_CC_LINKER_TARGET([$CC], [CONF_CC_OPTS_STAGE1], [CONF_GCC_LINKER_OPTS_STAGE1])
FP_PROG_CC_LINKER_TARGET([$CC], [CONF_CC_OPTS_STAGE2], [CONF_GCC_LINKER_OPTS_STAGE2])
dnl ** See whether cc used as a linker supports -no-pie
FP_GCC_SUPPORTS_NO_PIE
dnl Pass -Qunused-arguments or otherwise GHC will have very noisy invocations of Clang
dnl TODO: Do we need -Qunused-arguments in CXX and GCC linker too?
FP_CC_IGNORE_UNUSED_ARGS([$CC_STAGE0], [CONF_CC_OPTS_STAGE0])
FP_CC_IGNORE_UNUSED_ARGS([$CC], [CONF_CC_OPTS_STAGE1])
FP_CC_IGNORE_UNUSED_ARGS([$CC], [CONF_CC_OPTS_STAGE2])
# CPP, CPPFLAGS
# --with-cpp/-with-cpp-flags
dnl Note that we must do this after setting and using the C99 CPPFLAGS, or
dnl otherwise risk trying to configure the C99 and LD flags using -E as a CPPFLAG
FP_CPP_CMD_WITH_ARGS([$CC_STAGE0],[CPPCmd_STAGE0],[CONF_CPP_OPTS_STAGE0])
FP_CPP_CMD_WITH_ARGS([$CC],[CPPCmd],[CONF_CPP_OPTS_STAGE1])
FP_CPP_CMD_WITH_ARGS([$CC],[CPPCmd],[CONF_CPP_OPTS_STAGE2])
AC_SUBST([CPPCmd_STAGE0])
AC_SUBST([CPPCmd])
# See rules/distdir-way-opts.mk for details.
# Flags passed to the C compiler
AC_SUBST(CONF_CC_OPTS_STAGE0)
AC_SUBST(CONF_CC_OPTS_STAGE1)
AC_SUBST(CONF_CC_OPTS_STAGE2)
# Flags passed to the C compiler when we ask it to link
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE0)
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE1)
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE2)
# Flags passed to the linker when we ask it to link
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE0)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE1)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE2)
# Flags passed to the C preprocessor
AC_SUBST(CONF_CPP_OPTS_STAGE0)
AC_SUBST(CONF_CPP_OPTS_STAGE1)
AC_SUBST(CONF_CPP_OPTS_STAGE2)
# Flags passed to the Haskell compiler
AC_SUBST(CONF_HC_OPTS_STAGE0)
AC_SUBST(CONF_HC_OPTS_STAGE1)
AC_SUBST(CONF_HC_OPTS_STAGE2)
dnl Identify C++ standard library flavour and location only when _not_ compiling
dnl the JS backend. The JS backend uses emscripten to wrap c++ utilities which
dnl fails this check, so we avoid it when compiling to JS.
if test "$TargetOS" != "ghcjs"; then
FP_FIND_CXX_STD_LIB
fi
AC_CONFIG_FILES([mk/system-cxx-std-lib-1.0.conf])
dnl ** Set up the variables for the platform in the settings file.
dnl May need to use gcc to find platform details.
dnl --------------------------------------------------------------
FPTOOLS_SET_HASKELL_PLATFORM_VARS([Build])
FPTOOLS_SET_HASKELL_PLATFORM_VARS([Host])
AC_SUBST(HaskellHostArch)
AC_SUBST(HaskellHostOs)
FPTOOLS_SET_HASKELL_PLATFORM_VARS([Target])
AC_SUBST(HaskellTargetArch)
AC_SUBST(HaskellTargetOs)
GHC_SUBSECTIONS_VIA_SYMBOLS
AC_SUBST(TargetHasSubsectionsViaSymbols)
GHC_IDENT_DIRECTIVE
AC_SUBST(TargetHasIdentDirective)
GHC_GNU_NONEXEC_STACK
AC_SUBST(TargetHasGnuNonexecStack)
dnl Let's make sure install-sh is executable here. If we got it from
dnl a darcs repo, it might not be (see bug #978).
chmod +x install-sh
dnl ** figure out how to do a BSD-ish install
AC_PROG_INSTALL
dnl ** how to invoke `ar' and `ranlib'
FP_PROG_AR_SUPPORTS_ATFILE
FP_PROG_AR_SUPPORTS_DASH_L
FP_PROG_AR_NEEDS_RANLIB
dnl ** Check to see whether ln -s works
AC_PROG_LN_S
FP_SETTINGS
dnl ** Find the path to sed
AC_PATH_PROGS(SedCmd,gsed sed,sed)
dnl ** check for time command
AC_PATH_PROG(TimeCmd,time)
dnl ** check for tar
dnl if GNU tar is named gtar, look for it first.
AC_PATH_PROGS(TarCmd,gnutar gtar tar,tar)
dnl ** check for autoreconf
AC_PATH_PROG(AutoreconfCmd, autoreconf, autoreconf)
dnl ** check for dtrace (currently only implemented for Mac OS X)
AC_ARG_ENABLE(dtrace,
[AS_HELP_STRING([--enable-dtrace],
[Enable DTrace])],
EnableDtrace=$enableval,
EnableDtrace=yes
)
HaveDtrace=NO
AC_PATH_PROG(DtraceCmd,dtrace)
if test "x$EnableDtrace" = "xyes"; then
if test -n "$DtraceCmd"; then
if test "x$TargetOS_CPP-$TargetVendor_CPP" = "xdarwin-apple" \
-o "x$TargetOS_CPP-$TargetVendor_CPP" = "xfreebsd-portbld" \
-o "x$TargetOS_CPP-$TargetVendor_CPP" = "xsolaris2-unknown"; then
HaveDtrace=YES
fi
fi
fi
AC_SUBST(HaveDtrace)
AC_PATH_PROG(HSCOLOUR,HsColour)
# HsColour is passed to Cabal, so we need a native path
if test "$HostOS" = "mingw32" && \
test "${OSTYPE}" != "msys" && \
test "${HSCOLOUR}" != ""
then
# Canonicalise to <drive>:/path/to/gcc
HSCOLOUR=`cygpath -m ${HSCOLOUR}`
fi
dnl ** check for Sphinx toolchain
AC_PATH_PROG(SPHINXBUILD,sphinx-build)
AC_CACHE_CHECK([for version of sphinx-build], fp_cv_sphinx_version,
changequote(, )dnl
[if test -n "$SPHINXBUILD"; then
fp_cv_sphinx_version=`"$SPHINXBUILD" --version 2>&1 | sed -re 's/.* v?([0-9]\.[0-9]\.[0-9])/\1/' | head -n1`;
fi;
changequote([, ])dnl
])
FP_COMPARE_VERSIONS([$fp_cv_sphinx_version],-lt,1.0.0,
[AC_MSG_WARN([Sphinx version 1.0.0 or later is required to build documentation]); SPHINXBUILD=;])
if test -n "$SPHINXBUILD"; then
if "$SPHINXBUILD" -b text utils/check-sphinx utils/check-sphinx/dist > /dev/null 2>&1; then true; else
AC_MSG_WARN([Sphinx for python3 is required to build documentation.])
SPHINXBUILD=;
fi
fi
dnl ** check for xelatex
AC_PATH_PROG(XELATEX,xelatex)
AC_PATH_PROG(MAKEINDEX,makeindex)
AC_PATH_PROG(GIT,git)
dnl ** check for makeinfo
AC_PATH_PROG(MAKEINFO,makeinfo)
dnl ** check for cabal
AC_PATH_PROG(CABAL,cabal)
dnl ** check for Python for testsuite driver
FIND_PYTHON
dnl ** check for ghc-pkg command
FP_PROG_GHC_PKG
dnl ** check for installed happy binary + version
AC_ARG_VAR(HAPPY,[Use as the path to happy [default=autodetect]])
FPTOOLS_HAPPY
dnl ** check for installed alex binary + version
AC_ARG_VAR(ALEX,[Use as the path to alex [default=autodetect]])
FPTOOLS_ALEX
dnl --------------------------------------------------
dnl ### program checking section ends here ###
dnl --------------------------------------------------
dnl for use in settings file
AC_CHECK_SIZEOF([void *])
TargetWordSize=$ac_cv_sizeof_void_p
AC_SUBST(TargetWordSize)
AC_C_BIGENDIAN([TargetWordBigEndian=YES],[TargetWordBigEndian=NO])
AC_SUBST(TargetWordBigEndian)
dnl ** check for math library
dnl Keep that check as early as possible.
dnl as we need to know whether we need libm
dnl for math functions or not
dnl (see https://gitlab.haskell.org/ghc/ghc/issues/3730)
AC_CHECK_LIB(m, atan, UseLibm=YES, UseLibm=NO)
AC_SUBST([UseLibm])
TargetHasLibm=$UseLibm
AC_SUBST(TargetHasLibm)
FP_BFD_FLAG
AC_SUBST([UseLibbfd])
dnl ################################################################
dnl Check for libraries
dnl ################################################################
FP_FIND_LIBFFI
AC_SUBST(UseSystemLibFFI)
AC_SUBST(FFILibDir)
AC_SUBST(FFIIncludeDir)
dnl ** check whether we need -ldl to get dlopen()
AC_CHECK_LIB([dl], [dlopen], UseLibdl=YES, UseLibdl=NO)
AC_SUBST([UseLibdl])
dnl ** check for leading underscores in symbol names
FP_LEADING_UNDERSCORE
AC_SUBST([LeadingUnderscore], [`echo $fptools_cv_leading_underscore | sed 'y/yesno/YESNO/'`])
dnl ** check for librt
AC_CHECK_LIB([rt], [clock_gettime], UseLibrt=YES, UseLibrt=NO)
AC_SUBST([UseLibrt])
FP_CHECK_PTHREAD_LIB
AC_SUBST([UseLibpthread])
GHC_ADJUSTORS_METHOD([Target])
AC_SUBST([UseLibffiForAdjustors])
dnl ** IPE data compression
dnl --------------------------------------------------------------
FP_FIND_LIBZSTD
AC_SUBST(UseLibZstd)
AC_SUBST(UseStaticLibZstd)
AC_SUBST(LibZstdLibDir)
AC_SUBST(LibZstdIncludeDir)
dnl ** Other RTS features
dnl --------------------------------------------------------------
FP_FIND_LIBDW
AC_SUBST(UseLibdw)
AC_SUBST(LibdwLibDir)
AC_SUBST(LibdwIncludeDir)
FP_FIND_LIBNUMA
AC_SUBST(UseLibNuma)
AC_SUBST(LibNumaLibDir)
AC_SUBST(LibNumaIncludeDir)
dnl ** Documentation
dnl --------------------------------------------------------------
if test -n "$SPHINXBUILD"; then
BUILD_MAN=YES
BUILD_SPHINX_HTML=YES
if test -n "$XELATEX" -a -n "$MAKEINDEX"; then
BUILD_SPHINX_PDF=YES
else
BUILD_SPHINX_PDF=NO
fi
if test -n "$MAKEINFO"; then
BUILD_SPHINX_INFO=YES
else
BUILD_SPHINX_INFO=NO
fi
else
BUILD_MAN=NO
BUILD_SPHINX_HTML=NO
BUILD_SPHINX_PDF=NO
BUILD_SPHINX_INFO=NO
fi
AC_SUBST(BUILD_MAN)
AC_SUBST(BUILD_SPHINX_HTML)
AC_SUBST(BUILD_SPHINX_PDF)
if grep ' ' compiler/ghc.cabal.in 2>&1 >/dev/null; then
AC_MSG_ERROR([compiler/ghc.cabal.in contains tab characters; please remove them])
fi
# We got caught by
# http://savannah.gnu.org/bugs/index.php?1516
# $(eval ...) inside conditionals causes errors
# with make 3.80, so warn the user if it looks like they're about to
# try to use it.
# We would use "grep -q" here, but Solaris's grep doesn't support it.
print_make_warning=""
checkMake380() {
make_ver=`$1 --version 2>&1 | head -1`
if echo "$make_ver" | grep 'GNU Make 3\.80' > /dev/null
then
print_make_warning="true"
fi
if echo "$make_ver" | grep 'GNU Make' > /dev/null
then
MakeCmd=$1
AC_SUBST(MakeCmd)
fi
}
checkMake380 make
checkMake380 gmake
# Toolchain target files
FIND_GHC_TOOLCHAIN_BIN([NO])
PREP_TARGET_FILE
FIND_GHC_TOOLCHAIN([hadrian/cfg])
AC_CONFIG_FILES(
[ hadrian/cfg/system.config
hadrian/ghci-cabal
hadrian/ghci-multi-cabal
hadrian/ghci-stack
hadrian/cfg/default.host.target
hadrian/cfg/default.target
])
dnl Create the VERSION file, satisfying #22322.
printf "$ProjectVersion" > VERSION
AC_OUTPUT
[
if test "$print_make_warning" = "true"; then
echo
echo "WARNING: It looks like \"$MakeCmd\" is GNU make 3.80."
echo "This version cannot be used to build GHC."
echo "Please use GNU make >= 3.81."
fi
echo "
----------------------------------------------------------------------