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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], [9.1], [[email protected]], [ghc-AC_PACKAGE_VERSION])
# Version on HEAD must be X.Y (not X.Y.Z) for ProjectVersionMunged variable
# to be useful (cf #19058)
# 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 mk/config.h.in; then
echo "mk/config.h.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=$target_alias-
dnl ----------------------------------------------------------
dnl ** Find unixy sort and find commands,
dnl ** which are needed by FP_SETUP_PROJECT_VERSION
dnl ** Find find command (for Win32's benefit)
FP_PROG_FIND
FP_PROG_SORT
dnl ----------------------------------------------------------
FP_SETUP_PROJECT_VERSION
# Hmmm, we fix the RPM release number to 1 here... Is this convenient?
AC_SUBST([release], [1])
# First off, a distrib sanity check..
AC_CONFIG_SRCDIR([mk/config.mk.in])
dnl * We require autoconf version 2.69 due to
dnl https://bugs.ruby-lang.org/issues/8179. Also see #14910.
dnl * We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
dnl * We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
dnl * Using autoconf 2.59 started to give nonsense like this
dnl #define SIZEOF_CHAR 0
dnl recently.
AC_PREREQ([2.69])
# -------------------------------------------------------------------------
# Prepare to generate the following header files
#
#
AC_CONFIG_HEADER(mk/config.h)
# No, semi-sadly, we don't do `--srcdir'...
if test x"$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 path to GHC [default=autodetect]])
AC_PATH_PROG([GHC], [ghc])
AC_ARG_WITH([ghc],
AS_HELP_STRING([--with-ghc=ARG], [Use ARG as the path to ghc (obsolete, use GHC=ARG 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,
[AC_HELP_STRING([--enable-bootstrap-with-devel-snapshot],
[Allow bootstrapping using a development snapshot of GHC. This is not guaranteed to work.])],
EnableBootstrapWithDevelSnaphost=YES,
EnableBootstrapWithDevelSnaphost=NO
)
AC_ARG_ENABLE(tarballs-autodownload,
[AC_HELP_STRING([--enable-tarballs-autodownload],
[Automatically download Windows distribution binaries if needed.])],
TarballsAutodownload=YES,
TarballsAutodownload=NO
)
AC_ARG_ENABLE(distro-toolchain,
[AC_HELP_STRING([--enable-distro-toolchain],
[Do not use bundled Windows toolchain binaries.])],
EnableDistroToolchain=YES,
EnableDistroToolchain=NO
)
if test "$EnableDistroToolchain" = "YES"; then
TarballsAutodownload=NO
fi
AC_ARG_ENABLE(native-io-manager,
[AC_HELP_STRING([--enable-native-io-manager],
[Enable the native I/O manager by default.])],
EnableNativeIOManager=YES,
EnableNativeIOManager=NO
)
if test "$EnableNativeIOManager" = "YES"; then
AC_DEFINE_UNQUOTED([DEFAULT_NATIVE_IO_MANAGER], [1], [Enable Native I/O manager as default.])
fi
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 "$LD_STAGE0"; then
BOOTSTRAPPING_GHC_INFO_FIELD([LD_STAGE0],[ld command])
fi
if test -z "$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([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 ${RTS_WAYS_STAGE0} | grep '.*thr.*' 2>&1 >/dev/null && \
test "$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 "$WithGhc" = ""
then
AC_MSG_ERROR([GHC is required.])
fi
FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[8.8],
[AC_MSG_ERROR([GHC version 8.8 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_PLATFORM_VARS
# Verify that the installed (bootstrap) GHC is capable of generating
# code for the requested build platform.
if test "$BuildPlatform" != "$bootstrap_target"
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
# Testing if we shall enable shared libs support on Solaris.
# Anything older than SunOS 5.11 aka Solaris 11 (Express) is broken.
SOLARIS_BROKEN_SHLD=NO
case $host in
i386-*-solaris2)
# here we go with the test
MINOR=`uname -r|cut -d '.' -f 2-`
if test "$MINOR" -lt "11"; then
SOLARIS_BROKEN_SHLD=YES
fi
;;
esac
AC_SUBST(SOLARIS_BROKEN_SHLD)
dnl ** Do an unregisterised build?
dnl --------------------------------------------------------------
AC_MSG_CHECKING(whether target supports a registerised ABI)
case "$TargetArch" in
i386|x86_64|powerpc|powerpc64|powerpc64le|s390x|arm|aarch64)
UnregisterisedDefault=NO
AC_MSG_RESULT([yes])
;;
*)
UnregisterisedDefault=YES
AC_MSG_RESULT([no])
;;
esac
FP_DEFAULT_CHOICE_OVERRIDE_CHECK(
[unregisterised],
[unregisterised],
[registerised],
[Unregisterised],
[Build a toolchain with the unregisterised ABI (disabled by default on platforms with registerised support)],
[NO],
[YES],
[no])
AC_SUBST(Unregisterised)
dnl ** Do a build with tables next to code?
dnl
dnl Whether the target architecture supports placing info tables
dnl directly before the entry code (see TABLES_NEXT_TO_CODE in the RTS).
dnl Whether we actually compile for TABLES_NEXT_TO_CODE depends on
dnl whether we're building unregisterised code or not, which may be
dnl decided by options to the compiler later.
dnl
dnl See https://gitlab.haskell.org/ghc/ghc/wikis/commentary/rts/storage/heap-objects#tables_next_to_code
dnl --------------------------------------------------------------
AC_MSG_CHECKING(whether target supports tables next to code)
case "$Unregisterised" in
NO)
case "$TargetArch" in
ia64|powerpc64|powerpc64le|s390x)
TablesNextToCodeDefault=NO
AC_MSG_RESULT([no])
;;
*)
TablesNextToCodeDefault=YES
AC_MSG_RESULT([yes])
;;
esac
;;
YES)
TablesNextToCodeDefault=NO
AC_MSG_RESULT([no])
;;
esac
FP_DEFAULT_CHOICE_OVERRIDE_CHECK(
[tables-next-to-code],
[tables next to code],
[tables apart from code],
[TablesNextToCode],
[Build a tool chain with info tables laid out next to code (enabled by default when using the registerised ABI, on platforms that support it)])
if test x"$TablesNextToCode" = xYES; then
AC_DEFINE([TABLES_NEXT_TO_CODE], [1], [Define to 1 if info tables are laid out next to code])
fi
AC_SUBST(TablesNextToCode)
dnl ** Does target have runtime linker support?
dnl --------------------------------------------------------------
case "$target" in
powerpc64-*|powerpc64le-*|powerpc-ibm-aix*|s390x-ibm-linux)
TargetHasRTSLinker=NO
;;
*)
TargetHasRTSLinker=YES
;;
esac
AC_SUBST(TargetHasRTSLinker)
# Requires FPTOOLS_SET_PLATFORM_VARS to be run first.
FP_FIND_ROOT
if test "$HostOS" = "mingw32"
then
# Find the mingw-w64 7z file to extract.
# NB. If you update the tarballs to a new version of gcc, don't
# forget to tweak the paths in driver/gcc/gcc.c.
if test "$HostArch" = "i386"
then
mingw_arch="i686"
tarball_dest_dir="mingw-w64/i686"
tarball_mingw_dir="mingw32"
else
mingw_arch="x86_64"
tarball_dest_dir="mingw-w64/x86_64"
tarball_mingw_dir="mingw64"
fi
fi
set_up_tarballs() {
AC_MSG_NOTICE([Checking for Windows toolchain tarballs...])
local action
if test "$TarballsAutodownload" = "NO"
then
action="verify"
else
action="download"
fi
$PYTHON mk/get-win32-tarballs.py $action $mingw_arch > missing-win32-tarballs
case $? in
0)
rm missing-win32-tarballs
;;
2)
echo
echo "Error:"
echo "Needed msys2 tarballs are missing. You have a few options to get them,"
echo
echo " * run configure with the --enable-tarballs-autodownload option"
echo
echo " * run mk/get-win32-tarballs.py download $mingw_arch"
echo
echo " * manually download the files listed in ./missing-win32-tarballs and place"
echo " them in the ghc-tarballs directory."
echo
exit 1
;;
*)
echo
echo "Error fetching msys2 tarballs; see errors above."
exit 1
;;
esac
# Extract all the tarballs in one go
if ! test -d inplace/mingw
then
AC_MSG_NOTICE([Extracting Windows toolchain from archives (may take a while)...])
rm -rf inplace/mingw
local base_dir="../ghc-tarballs/${tarball_dest_dir}"
( cd inplace &&
find "${base_dir}" -name "*.tar.xz" -exec tar --xz -xf {} \; &&
find "${base_dir}" -name "*.tar.zst" -exec tar --zstd -xf {} \; &&
rm ".MTREE" &&
rm ".PKGINFO" &&
cd .. ) || AC_MSG_ERROR([Could not extract Windows toolchains.])
mv "inplace/${tarball_mingw_dir}" inplace/mingw &&
touch inplace/mingw
# NB. Now since the GCC is hardcoded to use /mingw32 we need to
# make a wrapper around it to give it the proper paths
mv inplace/mingw/bin/gcc.exe inplace/mingw/bin/realgcc.exe
PATH=`pwd`/inplace/mingw/bin:$PATH
inplace/mingw/bin/realgcc.exe driver/gcc/gcc.c driver/utils/cwrapper.c driver/utils/getLocation.c -Idriver/utils -o inplace/mingw/bin/gcc.exe
AC_MSG_NOTICE([In-tree MingW-w64 tree created])
fi
}
# See Note [tooldir: How GHC finds mingw on Windows]
if test "$HostOS" = "mingw32" -a "$EnableDistroToolchain" = "NO"
then
test -d inplace || mkdir inplace
# NB. Download and extract the MingW-w64 distribution if required
set_up_tarballs
mingwbin="$hardtop/inplace/mingw/bin/"
CC="${mingwbin}gcc.exe"
LD="${mingwbin}ld.exe"
NM="${mingwbin}nm.exe"
RANLIB="${mingwbin}ranlib.exe"
OBJDUMP="${mingwbin}objdump.exe"
MergeObjsCmd="$LD"
MergeObjsArgs="-r --oformat=pe-bigobj-x86-64"
fp_prog_ar="${mingwbin}ar.exe"
AC_PATH_PROG([Genlib],[genlib])
fi
# We don't want to bundle a MinGW-w64 toolchain
# So we have to find these individual tools.
# See Note [tooldir: How GHC finds mingw on Windows]
if test "$EnableDistroToolchain" = "YES"
then
# Ideally should use AC_CHECK_TARGET_TOOL but our triples
# are screwed up. Configure doesn't think they're ever equal and
# so never tried without the prefix.
AC_PATH_PROG([CC],[gcc], [clang])
AC_PATH_PROG([NM],[nm])
AC_PATH_PROG([LD],[ld])
AC_PATH_PROG([AR],[ar])
AC_PATH_PROG([RANLIB],[ranlib])
AC_PATH_PROG([OBJDUMP],[objdump])
AC_PATH_PROG([DllWrap],[dllwrap])
AC_PATH_PROG([Windres],[windres])
AC_PATH_PROG([Genlib],[genlib])
else
AC_CHECK_TARGET_TOOL([Windres],[windres])
AC_CHECK_TARGET_TOOL([DllWrap],[dllwrap])
AC_CHECK_TARGET_TOOL([OBJDUMP],[objdump])
fi
DllWrapCmd="$DllWrap"
WindresCmd="$Windres"
HAVE_GENLIB=False
if test "$HostOS" = "mingw32"
then
if test "$Genlib" != ""; then
GenlibCmd="$(cygpath -m $Genlib)"
HAVE_GENLIB=True
fi
fi
AC_SUBST([DllWrapCmd])
AC_SUBST([WindresCmd])
AC_SUBST([GenlibCmd])
AC_SUBST([HAVE_GENLIB])
FP_ICONV
FP_GMP
FP_CURSES
dnl On Windows we force in-tree GMP build until we support dynamic linking
if test "$HostOS" = "mingw32"
then
GMP_FORCE_INTREE="YES"
fi
XCODE_VERSION()
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
if test "$CrossCompiling" = "YES"
then
# Use value passed by user from --target=
CrossCompilePrefix="${TargetPlatformFull}-"
else
CrossCompilePrefix=""
fi
AC_SUBST(CrossCompiling)
AC_SUBST(CrossCompilePrefix)
AC_SUBST(TargetPlatformFull)
AC_SUBST(EnableDistroToolchain)
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 $CC (unless CC already set),
dnl later CC is copied to CC_STAGE{1,2,3}
AC_PROG_CC([cc gcc clang])
MAYBE_OVERRIDE_STAGE0([ar],[AR_STAGE0])
dnl make extensions visible to allow feature-tests to detect them lateron
AC_USE_SYSTEM_EXTENSIONS
dnl ** figure out how to invoke the C preprocessor (i.e. `gcc -E`)
AC_PROG_CPP
# --with-hs-cpp/--with-hs-cpp-flags
FP_CPP_CMD_WITH_ARGS(HaskellCPPCmd, HaskellCPPArgs)
AC_SUBST([HaskellCPPCmd])
AC_SUBST([HaskellCPPArgs])
FP_SET_CFLAGS_C99([CC],[CFLAGS],[CPPFLAGS])
FP_SET_CFLAGS_C99([CC_STAGE0],[CONF_CC_OPTS_STAGE0],[CONF_CPP_OPTS_STAGE0])
FP_SET_CFLAGS_C99([CC],[CONF_CC_OPTS_STAGE1],[CONF_CPP_OPTS_STAGE1])
FP_SET_CFLAGS_C99([CC],[CONF_CC_OPTS_STAGE2],[CONF_CPP_OPTS_STAGE2])
dnl ** Which ld to use
dnl --------------------------------------------------------------
AC_ARG_VAR(LD,[Use as the path to ld. See also --disable-ld-override.])
FIND_LD([$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 $GccUseLdOpt"
LdCmd="$LD"
CFLAGS="$CFLAGS $GccUseLdOpt"
AC_SUBST([LdCmd])
FP_PROG_LD_IS_GNU
FP_PROG_LD_BUILD_ID
FP_PROG_LD_NO_COMPACT_UNWIND
FP_PROG_LD_FILELIST
dnl ** Which nm to use?
dnl --------------------------------------------------------------
if test "$HostOS" != "mingw32"; then
AC_CHECK_TARGET_TOOL([NM], [nm])
if test "$NM" = ":"; then
AC_MSG_ERROR([cannot find nm in your PATH])
fi
fi
NmCmd="$NM"
AC_SUBST([NmCmd])
if test "$TargetOS_CPP" = "darwin"
then
AC_MSG_CHECKING(whether nm program is broken)
# Some versions of Xcode ship a broken version of `nm`. Detect and work
# around this issue. See : https://gitlab.haskell.org/ghc/ghc/issues/11744
nmver=$(${NM} --version | grep version | sed 's/ //g')
case "$nmver" in
LLVMversion7.3.0|LLVMversion7.3.1)
AC_MSG_RESULT(yes)
echo "The detected nm program is broken."
echo
echo "See: https://gitlab.haskell.org/ghc/ghc/issues/11744"
echo
echo "Try re-running configure with:"
echo
echo ' NM=$(xcrun --find nm-classic) ./configure'
echo
exit 1
;;
*)
AC_MSG_RESULT(no)
;;
esac
fi
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 $HostOS_CPP in
cygwin32|mingw32|openbsd|aix)
AC_CHECK_TARGET_TOOL([OBJDUMP], [objdump])
;;
esac
ObjdumpCmd="$OBJDUMP"
AC_SUBST([ObjdumpCmd])
dnl ** Which ranlib to use?
dnl --------------------------------------------------------------
AC_PROG_RANLIB
if test "$RANLIB" = ":"; then
AC_MSG_ERROR([cannot find ranlib in your PATH])
fi
RanlibCmd="$RANLIB"
AC_SUBST([RanlibCmd])
dnl ** which strip to use?
dnl --------------------------------------------------------------
AC_CHECK_TARGET_TOOL([STRIP], [strip])
StripCmd="$STRIP"
AC_SUBST([StripCmd])
dnl ** which libtool to use?
dnl --------------------------------------------------------------
# The host normalization on Windows breaks autoconf, it no longer
# thinks that target == host so it never checks the unqualified
# tools for Windows. See #14274.
if test "$HostOS" = "mingw32"
then
AC_PATH_PROG([LIBTOOL],[libtool])
LibtoolCmd="$(cygpath -m $LIBTOOL)"
else
AC_CHECK_TARGET_TOOL([LIBTOOL], [libtool])
LibtoolCmd="$LIBTOOL"
fi
AC_SUBST([LibtoolCmd])
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.
LlvmVersion=10
AC_SUBST([LlvmVersion])
sUPPORTED_LLVM_VERSION=$(echo \($LlvmVersion\) | sed 's/\./,/')
AC_DEFINE_UNQUOTED([sUPPORTED_LLVM_VERSION], ${sUPPORTED_LLVM_VERSION}, [The supported LLVM version number])
dnl ** Which LLVM clang to use?
dnl --------------------------------------------------------------
AC_ARG_VAR(CLANG,[Use as the path to clang [default=autodetect]])
AC_CHECK_TARGET_TOOL([CLANG], [clang])
ClangCmd="$CLANG"
AC_SUBST([ClangCmd])
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], [$LlvmVersion])
LlcCmd="$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], [$LlvmVersion])
OptCmd="$OPT"
AC_SUBST([OptCmd])
dnl --------------------------------------------------------------
dnl End of configure script option section
dnl --------------------------------------------------------------
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/lndir/
ln -f utils/fs/fs.* utils/unlit/
ln -f utils/fs/fs.* rts/
ln -f utils/fs/fs.h libraries/base/include/
ln -f utils/fs/fs.c libraries/base/cbits/
AC_MSG_NOTICE([Routines in place. Packages can now be build normally.])
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 ** See whether gcc supports -no-pie
FP_GCC_SUPPORTS_NO_PIE
dnl ** Used to determine how to compile ghc-prim's atomics.c, used by
dnl unregisterised, Sparc, and PPC backends.
FP_GCC_SUPPORTS__ATOMICS
if test $CONF_GCC_SUPPORTS__ATOMICS = YES ; then
AC_DEFINE([HAVE_C11_ATOMICS], [1], [Does GCC support __atomic primitives?])
else
AC_MSG_ERROR([C compiler needs to support __atomic primitives.])
fi
FP_GCC_EXTRA_FLAGS
dnl ** look to see if we have a C compiler using an llvm back end.
dnl
FP_CC_LLVM_BACKEND
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
# 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 ** 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
dnl ** figure out how to do context diffs
FP_PROG_CONTEXT_DIFF
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_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 compressors
AC_PATH_PROGS(Bzip2Cmd,bzip2, bzip2)
AC_PATH_PROGS(GzipCmd,gzip, gzip)
AC_PATH_PROGS(XzCmd,pxz xz, xz)
dnl ** check for patch
dnl if GNU patch is named gpatch, look for it first
AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
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,
[AC_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 's/.* \([0-9]\.[0-9]\.[0-9]\)/\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)
dnl ** check for makeinfo
AC_PATH_PROG(MAKEINFO,makeinfo)
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 --------------------------------------------------
dnl * Platform header file and syscall feature tests
dnl ### checking the state of the local header files and syscalls ###
dnl ** check for full ANSI header (.h) files
AC_HEADER_STDC
dnl ** Enable large file support. NB. do this before testing the type of
dnl off_t, because it will affect the result of that test.
AC_SYS_LARGEFILE
dnl ** check for specific header (.h) files that we are interested in
AC_CHECK_HEADERS([ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/param.h sys/mman.h sys/resource.h sys/select.h sys/time.h sys/timeb.h sys/timerfd.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
dnl sys/cpuset.h needs sys/param.h to be included first on FreeBSD 9.1; #7708
AC_CHECK_HEADERS([sys/cpuset.h], [], [],
[[#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
]])
dnl ** check if it is safe to include both <time.h> and <sys/time.h>
AC_HEADER_TIME
dnl ** do we have long longs?
AC_CHECK_TYPES([long long])
dnl ** what are the sizes of various types
FP_CHECK_SIZEOF_AND_ALIGNMENT(char)
FP_CHECK_SIZEOF_AND_ALIGNMENT(double)
FP_CHECK_SIZEOF_AND_ALIGNMENT(float)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int)
FP_CHECK_SIZEOF_AND_ALIGNMENT(long)
if test "$ac_cv_type_long_long" = yes; then
FP_CHECK_SIZEOF_AND_ALIGNMENT(long long)
fi
FP_CHECK_SIZEOF_AND_ALIGNMENT(short)
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned char)
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned int)
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned long)
if test "$ac_cv_type_long_long" = yes; then
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned long long)
fi
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned short)
FP_CHECK_SIZEOF_AND_ALIGNMENT(void *)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int8_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint8_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int16_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint16_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int32_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint32_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int64_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint64_t)
dnl for use in settings file