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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], [8.1], [glasgow-haskell-bugs@haskell.org], [ghc-AC_PACKAGE_VERSION])
# Set this to YES for a released version, otherwise NO
: ${RELEASE=NO}
# The primary version (e.g. 7.5, 7.4.1) is set in the AC_INIT line
# above. If this is not a released version, then we will append the
# date to the version number (e.g. 7.4.20111220). The date is
# constructed by finding the date of the most recent patch in the
# git repository. If this is a source distribution (not a git
# checkout), then we ship a file 'VERSION' containing the full version
# when the source distribution was created.
if test ! -f mk/config.h.in; then
echo "mk/config.h.in doesn't exist: perhaps you haven't run 'perl boot'?"
exit 1
fi
AC_SUBST([CONFIGURE_ARGS], [$ac_configure_args])
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=$target_alias-
dnl ----------------------------------------------------------
dnl ** Find unixy sort and find commands,
dnl ** which are needed by FP_SETUP_PROJECT_VERSION
dnl ** Find find command (for Win32's benefit)
FP_PROG_FIND
FP_PROG_SORT
dnl ----------------------------------------------------------
FP_SETUP_PROJECT_VERSION
# Hmmm, we fix the RPM release number to 1 here... Is this convenient?
AC_SUBST([release], [1])
# First off, a distrib sanity check..
AC_CONFIG_SRCDIR([mk/config.mk.in])
dnl * We require autoconf version 2.60
dnl We need 2.50 due to the use of AC_SYS_LARGEFILE and AC_MSG_NOTICE.
dnl We need 2.52 due to the use of AS_TR_CPP and AS_TR_SH.
dnl Using autoconf 2.59 started to give nonsense like this
dnl #define SIZEOF_CHAR 0
dnl recently.
AC_PREREQ([2.60])
# -------------------------------------------------------------------------
# Prepare to generate the following header files
#
#
AC_CONFIG_HEADER(mk/config.h)
# No, semi-sadly, we don't do `--srcdir'...
if test x"$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_WITH([ghc],
[AC_HELP_STRING([--with-ghc=ARG],
[Use ARG as the path to GHC [default=autodetect]])],
[WithGhc="$withval"],
[if test "$GHC" = ""; then
AC_PATH_PROG([GHC], [ghc])
fi
WithGhc="$GHC"])
dnl ** Tell the make system which OS we are using
dnl $OSTYPE is set by the operating system to "msys" or "cygwin" or something
AC_SUBST(OSTYPE)
AC_ARG_ENABLE(bootstrap-with-devel-snapshot,
[AC_HELP_STRING([--enable-bootstrap-with-devel-snapshot],
[Allow bootstrapping using a development snapshot of GHC. This is not guaranteed to work.])],
EnableBootstrapWithDevelSnaphost=YES,
EnableBootstrapWithDevelSnaphost=NO
)
AC_ARG_ENABLE(tarballs-autodownload,
[AC_HELP_STRING([--enable-tarballs-autodownload],
[Automatically download Windows distribution binaries if needed.])],
TarballsAutodownload=YES,
TarballsAutodownload=NO
)
dnl CC_STAGE0 is like the "previous" variable CC (inherited by CC_STAGE[123])
dnl but instead used by stage0 for bootstrapping stage1
AC_ARG_VAR(CC_STAGE0, [C compiler command (bootstrap)])
if test "$WithGhc" != ""; then
FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
if test "$GhcMajVersion" = "unknown" -o "$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$GhcMinVersion2"
dnl infer CC_STAGE0 from `ghc --info` unless explicitly set by user
if test -z "$CC_STAGE0"; then
BOOTSTRAPPING_GHC_INFO_FIELD([CC_STAGE0],[C compiler command])
fi
BOOTSTRAPPING_GHC_INFO_FIELD([LD_STAGE0],[ld command])
BOOTSTRAPPING_GHC_INFO_FIELD([AR_STAGE0],[ar command])
BOOTSTRAPPING_GHC_INFO_FIELD([AR_OPTS_STAGE0],[ar flags])
BOOTSTRAPPING_GHC_INFO_FIELD([ArSupportsAtFile_STAGE0],[ar supports at file])
fi
dnl ** Must have GHC to build GHC
if test "$WithGhc" = ""
then
AC_MSG_ERROR([GHC is required.])
fi
FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[7.10],
[AC_MSG_ERROR([GHC version 7.10 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 $GhcVersion.
Bootstrapping using this version of GHC is not supported, and may not
work. Use --enable-bootstrap-with-devel-snapshot to try it anyway,
or --with-ghc to specify a different GHC to use.])
fi
fi
GHC_PACKAGE_DB_FLAG=package-db
AC_SUBST(GHC_PACKAGE_DB_FLAG)
FP_COMPARE_VERSIONS([$GhcVersion],[-lt],[7.11],
SUPPORTS_THIS_UNIT_ID=NO,
SUPPORTS_THIS_UNIT_ID=YES)
AC_SUBST(SUPPORTS_THIS_UNIT_ID)
# 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 "$ghc_host_os" = "mingw32"
then
# Canonicalise to <drive>:/path/to/ghc
WithGhc=`cygpath -m "${WithGhc}"`
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 --------------------------------------------------------------
case "$HostArch" in
i386|x86_64|powerpc|powerpc64|powerpc64le|arm)
UnregisterisedDefault=NO
;;
*)
UnregisterisedDefault=YES
;;
esac
AC_ARG_ENABLE(unregisterised,
[AC_HELP_STRING([--enable-unregisterised],
[Build an unregisterised compiler (enabled by default on platforms without registerised support) [default="$UnregisterisedDefault"]])],
[ if test x"$enableval" = x"yes"; then
Unregisterised=YES
else
Unregisterised=NO
fi
],
[Unregisterised="$UnregisterisedDefault"]
)
AC_SUBST(Unregisterised)
# Requires FPTOOLS_SET_PLATFORM_VARS to be run first.
FP_FIND_ROOT
fail() {
echo >&2
echo "$1" >&2
exit 1
}
if test "$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 "$HostArch" = "i386"
then
mingw_arch="i686"
tarball_dest_dir="mingw-w64/x86"
tarball_mingw_dir="mingw32"
else
mingw_arch="x86_64"
tarball_dest_dir="mingw-w64/x86_64"
tarball_mingw_dir="mingw64"
fi
fi
set_up_tarballs() {
AC_MSG_NOTICE([Checking for Windows toolchain tarballs...])
local action
if test "$TarballsAutodownload" = "NO"
then
action="verify"
else
action="download"
fi
mk/get-win32-tarballs.sh $action $HostArch > 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.sh download ${HostArch}"
echo
echo " * manually download the files listed in ./missing-win32-tarballs and place"
echo " them in the ghc-tarballs directory."
echo
exit 1
;;
*)
echo
echo "Error fetching msys2 tarballs; see errors above."
exit 1
;;
esac
# Extract all the tarballs in one go
if ! test -d inplace/mingw
then
AC_MSG_NOTICE([Extracting Windows toolchain from archives (may take a while)...])
rm -rf inplace/mingw
local base_dir="../ghc-tarballs/${tarball_dest_dir}"
( cd inplace &&
find "${base_dir}" -name "*.tar.xz" -exec tar xfJ {} \; &&
rm ".MTREE" &&
rm ".PKGINFO" &&
cd .. ) || fail "Error: Could not extract Windows toolchains."
mv "inplace/${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:$PATH
inplace/mingw/bin/realgcc.exe driver/gcc/gcc.c driver/utils/cwrapper.c driver/utils/getLocation.c -Idriver/utils -o inplace/mingw/bin/gcc.exe
AC_MSG_NOTICE([In-tree MingW-w64 tree created])
fi
}
if test "$HostOS" = "mingw32"
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"
Windres="${mingwbin}windres.exe"
DllWrap="${mingwbin}dllwrap.exe"
fp_prog_ar="${mingwbin}ar.exe"
# NB. Download the perl binaries if required
if ! test -d inplace/perl ||
test inplace/perl -ot ghc-tarballs/perl/ghc-perl*.tar.gz
then
AC_MSG_NOTICE([Making in-tree perl tree])
rm -rf inplace/perl
mkdir inplace/perl
(
cd inplace/perl &&
tar -zxf ../../ghc-tarballs/perl/ghc-perl*.tar.gz
)
AC_MSG_NOTICE([In-tree perl tree created])
fi
fi
FP_ICONV
FP_GMP
FP_CURSES
XCODE_VERSION()
SplitObjsBroken=NO
if test "$TargetOS_CPP" = "darwin"
then
# Split objects is broken (#4013) with XCode < 3.2
if test "$XCodeVersion1" -lt 3
then
SplitObjsBroken=YES
else
if test "$XCodeVersion1" -eq 3
then
if test "$XCodeVersion2" -lt 2
then
SplitObjsBroken=YES
fi
fi
fi
fi
AC_SUBST([SplitObjsBroken])
dnl ** Building a cross compiler?
dnl --------------------------------------------------------------
CrossCompiling=NO
# If 'host' and 'target' differ, then this means we are building a cross-compiler.
if test "$TargetPlatform" != "$HostPlatform" ; then
CrossCompiling=YES
cross_compiling=yes # This tells configure that it can accept just 'target',
# otherwise you get
# configure: error: cannot run C compiled programs.
# If you meant to cross compile, use `--host'.
fi
if test "$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: $TargetPlatform (the architecture the compiler we're building will produce code for)
BUILD must equal HOST; that is, we do not support building GHC itself
with a cross-compiler. To cross-compile GHC itself, set TARGET: stage
1 will be a cross-compiler, and stage 2 will be the cross-compiled
GHC.
])
fi
if test "$CrossCompiling" = "YES"
then
CrossCompilePrefix="${target}-"
else
CrossCompilePrefix=""
fi
TargetPlatformFull="${TargetPlatform}"
AC_SUBST(CrossCompiling)
AC_SUBST(CrossCompilePrefix)
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=$withval ./configure' instead)]))
AC_ARG_WITH([clang],
AS_HELP_STRING([--with-clang=ARG], [Use ARG as the path to gcc (obsolete, use CC=ARG instead) [default=autodetect]]),
AC_MSG_ERROR([--with-clang=$withval is obsolete (use './configure CC=$withval' or 'CC=$withval ./configure' instead)]))
dnl detect compiler (prefer gcc over clang) and set $CC (unless CC already set),
dnl later CC is copied to CC_STAGE{1,2,3}
AC_PROG_CC([gcc clang])
MAYBE_OVERRIDE_STAGE0([ar],[AR_STAGE0])
dnl make extensions visible to allow feature-tests to detect them lateron
AC_USE_SYSTEM_EXTENSIONS
dnl ** figure out how to invoke the C preprocessor (i.e. `gcc -E`)
AC_PROG_CPP
# --with-hs-cpp/--with-hs-cpp-flags
FP_CPP_CMD_WITH_ARGS(HaskellCPPCmd, HaskellCPPArgs)
AC_SUBST([HaskellCPPCmd])
AC_SUBST([HaskellCPPArgs])
FP_SET_CFLAGS_C99([CC],[CFLAGS],[CPPFLAGS])
FP_SET_CFLAGS_C99([CC_STAGE0],[CONF_CC_OPTS_STAGE0],[CONF_CPP_OPTS_STAGE0])
FP_SET_CFLAGS_C99([CC],[CONF_CC_OPTS_STAGE1],[CONF_CPP_OPTS_STAGE1])
FP_SET_CFLAGS_C99([CC],[CONF_CC_OPTS_STAGE2],[CONF_CPP_OPTS_STAGE2])
dnl ** Which ld to use?
dnl --------------------------------------------------------------
FIND_LD([LdCmd])
AC_SUBST([LdCmd])
dnl ** Which nm to use?
dnl --------------------------------------------------------------
FP_ARG_WITH_PATH_GNU_PROG([NM], [nm], [nm])
if test "$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://ghc.haskell.org/trac/ghc/ticket/11744
nmver=$(${NM} --version | grep version | sed 's/ //g')
case "$nmver" in
LLVMversion7.3.0|LLVMversion7.3.1)
AC_MSG_RESULT(yes)
echo "The detected nm program is broken."
echo
echo "See: https://ghc.haskell.org/trac/ghc/ticket/11744"
echo
echo "Try re-running configure with:"
echo
echo ' ./configure --with-nm=$(xcrun --find nm-classic)'
echo
exit 1
;;
*)
AC_MSG_RESULT(no)
;;
esac
fi
NmCmd="$NM"
AC_SUBST([NmCmd])
dnl ** Which objdump to use?
dnl --------------------------------------------------------------
FP_ARG_WITH_PATH_GNU_PROG_OPTIONAL([OBJDUMP], [objdump], [objdump])
ObjdumpCmd="$OBJDUMP"
AC_SUBST([ObjdumpCmd])
dnl ** Which ar to use?
dnl --------------------------------------------------------------
FP_ARG_WITH_PATH_GNU_PROG([AR], [ar], [ar])
ArCmd="$AR"
fp_prog_ar="$AR"
AC_SUBST([ArCmd])
dnl ** Which ranlib to use?
dnl --------------------------------------------------------------
FP_ARG_WITH_PATH_GNU_PROG([RANLIB], [ranlib], [ranlib])
RanlibCmd="$RANLIB"
RANLIB="$RanlibCmd"
# Note: we may not have objdump on OS X, and we only need it on Windows (for DLL checks)
case $HostOS_CPP in
cygwin32|mingw32)
dnl ** Which objdump to use?
dnl --------------------------------------------------------------
FP_ARG_WITH_PATH_GNU_PROG([OBJDUMP], [objdump], [objdump])
ObjdumpCmd="$OBJDUMP"
AC_SUBST([ObjdumpCmd])
;;
esac
# 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=3.8
AC_SUBST([LlvmVersion])
sUPPORTED_LLVM_VERSION=$(echo \($LlvmVersion\) | sed 's/\./,/')
AC_DEFINE_UNQUOTED([sUPPORTED_LLVM_VERSION], ${sUPPORTED_LLVM_VERSION}, [The supported LLVM version number])
dnl ** Which LLVM llc to use?
dnl --------------------------------------------------------------
FIND_LLVM_PROG([LLC], [llc], [llc], [$LlvmVersion])
LlcCmd="$LLC"
AC_SUBST([LlcCmd])
dnl ** Which LLVM opt to use?
dnl --------------------------------------------------------------
FIND_LLVM_PROG([OPT], [opt], [opt], [$LlvmVersion])
OptCmd="$OPT"
AC_SUBST([OptCmd])
dnl --------------------------------------------------------------
dnl End of configure script option section
dnl --------------------------------------------------------------
dnl --------------------------------------------------------------
dnl ** Can the unix package be built?
dnl --------------------------------------------------------------
if test "$TargetOS" = "mingw32"
then
GhcLibsWithUnix=NO
else
GhcLibsWithUnix=YES
fi
AC_SUBST([GhcLibsWithUnix])
dnl ** does #! work?
AC_SYS_INTERPRETER()
dnl ** look for `perl'
case $HostOS_CPP in
cygwin32|mingw32)
PerlCmd=$hardtop/inplace/perl/perl
;;
*)
AC_PATH_PROG(PerlCmd,perl)
if test -z "$PerlCmd"
then
echo "You must install perl before you can continue"
echo "Perhaps it is already installed, but not in your PATH?"
exit 1
else
FPTOOLS_CHECK_PERL_VERSION
fi
;;
esac
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 3.0
dnl
FP_GCC_VERSION
dnl ** look to see if we have a C compiler using an llvm back end.
dnl
FP_CC_LLVM_BACKEND
FP_PROG_LD_IS_GNU
FP_PROG_LD_BUILD_ID
FP_PROG_LD_NO_COMPACT_UNWIND
FP_PROG_LD_FILELIST
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
FP_GCC_EXTRA_FLAGS
AC_SUBST(CONF_CC_OPTS_STAGE0)
AC_SUBST(CONF_CC_OPTS_STAGE1)
AC_SUBST(CONF_CC_OPTS_STAGE2)
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE0)
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE1)
AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE2)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE0)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE1)
AC_SUBST(CONF_LD_LINKER_OPTS_STAGE2)
AC_SUBST(CONF_CPP_OPTS_STAGE0)
AC_SUBST(CONF_CPP_OPTS_STAGE1)
AC_SUBST(CONF_CPP_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 patch
dnl if GNU patch is named gpatch, look for it first
AC_PATH_PROGS(PatchCmd,gpatch patch, patch)
dnl ** check for dtrace (currently only implemented for Mac OS X)
HaveDtrace=NO
AC_PATH_PROG(DtraceCmd,dtrace)
if test -n "$DtraceCmd"; then
if test "x$TargetOS_CPP-$TargetVendor_CPP" = "xdarwin-apple" -o "x$TargetOS_CPP-$TargetVendor_CPP" = "xsolaris2-unknown"; then
HaveDtrace=YES
fi
fi
AC_SUBST(HaveDtrace)
AC_PATH_PROG(HSCOLOUR,HsColour)
# HsColour is passed to Cabal, so we need a native path
if test "$HostOS" = "mingw32" && \
test "${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/Sphinx\( (sphinx-build)\)\? v\?\([0-9]\.[0-9]\.[0-9]\)/\2/' | head -n1`;
fi;
changequote([, ])dnl
])
FP_COMPARE_VERSIONS([$fp_cv_sphinx_version],-lt,1.0.0,
[AC_MSG_WARN([Sphinx version 1.0.0 or later is required to build documentation]); SPHINXBUILD=;])
dnl ** check for xelatex
AC_PATH_PROG(XELATEX,xelatex)
dnl ** check for ghc-pkg command
FP_PROG_GHC_PKG
dnl ** check for installed happy binary + version
FPTOOLS_HAPPY
dnl ** check for installed alex binary + version
FPTOOLS_ALEX
dnl --------------------------------------------------
dnl ### program checking section ends here ###
dnl --------------------------------------------------
dnl --------------------------------------------------
dnl * Platform header file and syscall feature tests
dnl ### checking the state of the local header files and syscalls ###
dnl ** check for full ANSI header (.h) files
AC_HEADER_STDC
dnl ** Enable large file support. NB. do this before testing the type of
dnl off_t, because it will affect the result of that test.
AC_SYS_LARGEFILE
dnl ** check for specific header (.h) files that we are interested in
AC_CHECK_HEADERS([ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/param.h sys/mman.h sys/resource.h sys/select.h sys/time.h sys/timeb.h sys/timerfd.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h])
dnl sys/cpuset.h needs sys/param.h to be included first on FreeBSD 9.1; #7708
AC_CHECK_HEADERS([sys/cpuset.h], [], [],
[[#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
]])
dnl ** check if it is safe to include both <time.h> and <sys/time.h>
AC_HEADER_TIME
dnl ** do we have long longs?
AC_CHECK_TYPES([long long])
dnl ** what are the sizes of various types
FP_CHECK_SIZEOF_AND_ALIGNMENT(char)
FP_CHECK_SIZEOF_AND_ALIGNMENT(double)
FP_CHECK_SIZEOF_AND_ALIGNMENT(float)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int)
FP_CHECK_SIZEOF_AND_ALIGNMENT(long)
if test "$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 "$ac_cv_type_long_long" = yes; then
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned long long)
fi
FP_CHECK_SIZEOF_AND_ALIGNMENT(unsigned short)
FP_CHECK_SIZEOF_AND_ALIGNMENT(void *)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int8_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint8_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int16_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint16_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int32_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint32_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(int64_t)
FP_CHECK_SIZEOF_AND_ALIGNMENT(uint64_t)
dnl for use in settings.in
WordSize=$ac_cv_sizeof_void_p
AC_SUBST(WordSize)
FP_CHECK_FUNC([WinExec],
[@%:@include <windows.h>], [WinExec("",0)])
FP_CHECK_FUNC([GetModuleFileName],
[@%:@include <windows.h>], [GetModuleFileName((HMODULE)0,(LPTSTR)0,0)])
dnl ** check for more functions
dnl ** The following have been verified to be used in ghc/, but might be used somewhere else, too.
AC_CHECK_FUNCS([getclock getrusage gettimeofday setitimer siginterrupt sysconf times ctime_r sched_setaffinity setlocale])
dnl ** On OS X 10.4 (at least), time.h doesn't declare ctime_r if
dnl ** _POSIX_C_SOURCE is defined
AC_CHECK_DECLS([ctime_r], , ,
[#define _POSIX_SOURCE 1
#define _POSIX_C_SOURCE 199506L
#include <time.h>])
dnl ** check for mingwex library
AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
AC_SUBST(HaveLibMingwEx)
if test $HaveLibMingwEx = YES ; then
AC_DEFINE([HAVE_MINGWEX], [1], [Define to 1 if you have the mingwex library.])
fi
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 http://ghc.haskell.org/trac/ghc/ticket/3730)
AC_CHECK_LIB(m, atan, HaveLibM=YES, HaveLibM=NO)
if test $HaveLibM = YES
then
AC_DEFINE([HAVE_LIBM], [1], [Define to 1 if you need to link with libm])
fi
FP_BFD_SUPPORT
dnl ################################################################
dnl Check for libraries
dnl ################################################################
# system libffi
AC_ARG_WITH([system-libffi],
[AC_HELP_STRING([--with-system-libffi],
[Use system provided libffi for RTS [default=no]])
])
AS_IF([test "x$with_system_libffi" = "xyes"],
[UseSystemLibFFI="YES"], [UseSystemLibFFI="NO"]
)
AC_SUBST(UseSystemLibFFI)
AC_ARG_WITH([ffi-includes],
[AC_HELP_STRING([--with-ffi-includes=ARG],
[Find includes for libffi in ARG [default=system default]])
],
[
if test "x$UseSystemLibFFI" != "xYES"; then
AC_MSG_WARN([--with-ffi-includes will be ignored, --with-system-libffi not set])
else
FFIIncludeDir="$withval"
LIBFFI_CFLAGS="-I$withval"
fi
])
AC_SUBST(FFIIncludeDir)
AC_ARG_WITH([ffi-libraries],
[AC_HELP_STRING([--with-ffi-libraries=ARG],
[Find libffi in ARG [default=system default]])
],
[
if test "x$UseSystemLibFFI" != "xYES"; then
AC_MSG_WARN([--with-ffi-libraries will be ignored, --with-system-libffi not set])
else
FFILibDir="$withval" LIBFFI_LDFLAGS="-L$withval"
fi
])
AC_SUBST(FFILibDir)
AS_IF([test "$UseSystemLibFFI" = "YES"], [
CFLAGS2="$CFLAGS"
CFLAGS="$LIBFFI_CFLAGS $CFLAGS"
LDFLAGS2="$LDFLAGS"
LDFLAGS="$LIBFFI_LDFLAGS $LDFLAGS"
if test "$HostOS" = "openbsd";
then
# OpenBSD's libffi is not directly linked to the libpthread but
# still requires pthread functionality. This means that any client
# binary which links with libffi also needs to link with
# libpthread. If it does not, then linking fails with unresolved
# symbols.
LDFLAGS="$LDFLAGS -lpthread"
fi
AC_CHECK_LIB(ffi, ffi_call,
[AC_CHECK_HEADERS([ffi.h], [break], [])
AC_DEFINE([HAVE_LIBFFI], [1], [Define to 1 if you have libffi.])],
[AC_MSG_ERROR([Cannot find system libffi])])
CFLAGS="$CFLAGS2"
LDFLAGS="$LDFLAGS2"
])
dnl ** check whether we need -ldl to get dlopen()
AC_CHECK_LIB(dl, dlopen)
dnl --------------------------------------------------
dnl * Miscellaneous feature tests
dnl --------------------------------------------------
dnl ** can we get alloca?
AC_FUNC_ALLOCA
dnl ** working vfork?
AC_FUNC_FORK
dnl ** determine whether or not const works
AC_C_CONST
dnl ** are we big endian?
AC_C_BIGENDIAN
FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
dnl ** check for leading underscores in symbol names
FP_LEADING_UNDERSCORE
FP_VISIBILITY_HIDDEN
dnl ** check for librt
AC_CHECK_LIB(rt, clock_gettime)
AC_CHECK_FUNCS(clock_gettime timer_settime)
FP_CHECK_TIMER_CREATE
dnl ** check for Apple's "interesting" long double compatibility scheme
AC_MSG_CHECKING(for printf\$LDBLStub)
AC_TRY_LINK_FUNC(printf\$LDBLStub,
[
AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[1],
[Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
],
[
AC_MSG_RESULT(no)
AC_DEFINE([HAVE_PRINTF_LDBLSTUB],[0],
[Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
])
dnl ** pthread_setname_np is a recent addition to glibc, and OS X has
dnl a different single-argument version.
AC_CHECK_LIB(pthread, pthread_setname_np)
AC_MSG_CHECKING(for pthread_setname_np)
AC_TRY_LINK(
[
#define _GNU_SOURCE
#include <pthread.h>
],
[pthread_setname_np(pthread_self(), "name");],
AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_PTHREAD_SETNAME_NP], [1],
[Define to 1 if you have the glibc version of pthread_setname_np]),
AC_MSG_RESULT(no)
)
dnl ** check for eventfd which is needed by the I/O manager
AC_CHECK_HEADERS([sys/eventfd.h])
AC_CHECK_FUNCS([eventfd])
dnl ** Check for __thread support in the compiler
AC_MSG_CHECKING(for __thread support)
AC_COMPILE_IFELSE(
[ AC_LANG_SOURCE([[__thread int tester = 0;]]) ],
[
AC_MSG_RESULT(yes)
AC_DEFINE([CC_SUPPORTS_TLS],[1],[Define to 1 if __thread is supported])
],
[
AC_MSG_RESULT(no)
AC_DEFINE([CC_SUPPORTS_TLS],[0],[Define to 1 if __thread is supported])
])
dnl large address space support (see includes/rts/storage/MBlock.h)
dnl
dnl Darwin has vm_allocate/vm_protect
dnl Linux has mmap(MAP_NORESERVE)/madv(MADV_DONTNEED)
dnl FreeBSD, Solaris and maybe other have MAP_NORESERVE/MADV_FREE
dnl (They also have MADV_DONTNEED, but it means something else!)
dnl
dnl Windows has VirtualAlloc MEM_RESERVE/MEM_COMMIT, however
dnl it counts page-table space as committed memory, and so quickly
dnl runs out of paging file when we have multiple processes reserving
dnl 1TB of address space, we get the following error:
dnl VirtualAlloc MEM_RESERVE 1099512676352 bytes failed: The paging file is too small for this operation to complete.
dnl
AC_ARG_ENABLE(large-address-space,
[AC_HELP_STRING([--enable-large-address-space],
[Use a single large address space on 64 bit systems (enabled by default on 64 bit platforms)])],
EnableLargeAddressSpace=$enableval,
EnableLargeAddressSpace=yes
)
use_large_address_space=no
if test "$ac_cv_sizeof_void_p" -eq 8 ; then
if test "x$EnableLargeAddressSpace" = "xyes" ; then
if test "$ghc_host_os" = "darwin" ; then
use_large_address_space=yes
elif test "$ghc_host_os" = "openbsd" ; then
# as of OpenBSD 5.8 (2015), OpenBSD does not support mmap with MAP_NORESERVE.
# The flag MAP_NORESERVE is supported for source compatibility reasons,
# but is completely ignored by OS mmap
use_large_address_space=no