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=` 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 "$GhcMajVersion" = "unknown" || test "$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$GhcMinVersion2" dnl infer CC_STAGE0 from `ghc --info` unless explicitly set by user if test -z "$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 "$ghc_host_os" = "mingw32" then # Canonicalise to :/path/to/ghc WithGhc=`cygpath -m "${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) dnl ** Does target have runtime linker support? dnl -------------------------------------------------------------- case "$target" in powerpc64-*|powerpc64le-*|powerpc-ibm-aix*) HaskellHaveRTSLinker=NO ;; *) HaskellHaveRTSLinker=YES ;; esac AC_SUBST(HaskellHaveRTSLinker) # 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="${mingwbin}ar.exe" # NB. Download the perl binaries if required if ! test -d inplace/perl || test inplace/perl -ot ghc-tarballs/perl/ghc-perl*.tar.gz then AC_MSG_NOTICE([Making in-tree perl tree]) rm -rf inplace/perl mkdir inplace/perl ( cd inplace/perl && tar -zxf ../../ghc-tarballs/perl/ghc-perl*.tar.gz ) AC_MSG_NOTICE([In-tree perl tree created]) fi fi FP_ICONV FP_GMP FP_CURSES XCODE_VERSION() dnl ** Building a cross compiler? dnl -------------------------------------------------------------- CrossCompiling=NO # If 'host' and 'target' differ, then this means we are building a cross-compiler. if test "$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="${target}-" else CrossCompilePrefix="" fi # Despite its similarity in name to TargetPlatform, TargetPlatformFull is used # in calls to subproject configure scripts and thus must be set to the autoconf # triple, not the normalized GHC triple that TargetPlatform is set to. # # We use the non-canonicalized triple, target_alias, here since the subproject # configure scripts will use this triple to construct the names of the toolchain # executables. If we instead passed down the triple produced by # AC_CANONICAL_TARGET then it may look for the target toolchain under the wrong # name (this is a known problem in the case of the Android NDK, which has # slightly odd triples). # # It may be better to just do away with the GHC triples all together. This would # all be taken care of for us if we configured the subprojects using # AC_CONFIG_DIR, but unfortunately Cabal needs to be the one to do the # configuration. TargetPlatformFull="${target_alias}" 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=3.9 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() # Check for split-objs SplitObjsBroken=NO 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 AC_MSG_WARN([No Perl on PATH, disabling split object support]) SplitObjsBroken=YES else FPTOOLS_CHECK_PERL_VERSION fi ;; esac AC_SUBST([SplitObjsBroken]) 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 ** See whether gcc supports -no-pie FP_GCC_SUPPORTS_NO_PIE 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 # 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 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 :/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([$fp_cv_sphinx_version],-lt,1.0.0, [AC_MSG_WARN([Sphinx version 1.0.0 or later is required to build documentation]); SPHINXBUILD=;]) dnl ** check for xelatex AC_PATH_PROG(XELATEX,xelatex) dnl ** check for ghc-pkg command FP_PROG_GHC_PKG dnl ** check for installed happy binary + version FPTOOLS_HAPPY dnl ** check for installed alex binary + version FPTOOLS_ALEX dnl -------------------------------------------------- dnl ### program checking section ends here ### dnl -------------------------------------------------- dnl -------------------------------------------------- dnl * Platform header file and syscall feature tests dnl ### checking the state of the local header files and syscalls ### dnl ** check for full ANSI header (.h) files AC_HEADER_STDC dnl ** Enable large file support. NB. do this before testing the type of dnl off_t, because it will affect the result of that test. AC_SYS_LARGEFILE dnl ** check for specific header (.h) files that we are interested in AC_CHECK_HEADERS([ctype.h dirent.h dlfcn.h errno.h fcntl.h grp.h limits.h locale.h nlist.h pthread.h pwd.h signal.h sys/param.h sys/mman.h sys/resource.h sys/select.h sys/time.h sys/timeb.h sys/timerfd.h sys/timers.h sys/times.h sys/utsname.h sys/wait.h termios.h time.h utime.h windows.h winsock.h sched.h]) dnl sys/cpuset.h needs sys/param.h to be included first on FreeBSD 9.1; #7708 AC_CHECK_HEADERS([sys/cpuset.h], [], [], [[#if HAVE_SYS_PARAM_H # include #endif ]]) dnl ** check if it is safe to include both and AC_HEADER_TIME dnl ** do we have long longs? AC_CHECK_TYPES([long long]) dnl ** what are the sizes of various types FP_CHECK_SIZEOF_AND_ALIGNMENT(char) FP_CHECK_SIZEOF_AND_ALIGNMENT(double) FP_CHECK_SIZEOF_AND_ALIGNMENT(float) FP_CHECK_SIZEOF_AND_ALIGNMENT(int) FP_CHECK_SIZEOF_AND_ALIGNMENT(long) if test "$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 ], [WinExec("",0)]) FP_CHECK_FUNC([GetModuleFileName], [@%:@include ], [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 ]) 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$LDBLStub (Apple Mac OS >= 10.4, PPC).]) ]) dnl Some platforms (e.g. Android's Bionic) have pthreads support available dnl without linking against libpthread. Check whether -lpthread is necessary dnl to use pthreads. dnl dnl Note that it is important that this happens before we AC_CHECK_LIB(thread) AC_MSG_CHECKING(whether -lpthread is needed for pthreads) AC_CHECK_FUNC(pthread_create, [ AC_MSG_RESULT(no) need_lpthread=0 ], [ AC_CHECK_LIB(pthread, pthread_create, [ AC_MSG_RESULT(yes) need_lpthread=1 ], [ AC_MSG_RESULT([no pthreads support found.]) need_lpthread=0 ]) ]) AC_DEFINE_UNQUOTED([NEED_PTHREAD_LIB], [$need_lpthread], [Define 1 if we need to link code using pthreads with -lpthread]) 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_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 "$ghc_host_os" = "openbsd" ; then # as of OpenBSD 5.8 (2015), OpenBSD does not support mmap with MAP_NORESERVE. # The flag MAP_NORESERVE is supported for source compatibility reasons, # but is completely ignored by OS mmap use_large_address_space=no else AC_CHECK_DECLS([MAP_NORESERVE, MADV_FREE, MADV_DONTNEED],[],[], [ #include #include #include #include ]) if test "$ac_cv_have_decl_MAP_NORESERVE" = "yes" && test "$ac_cv_have_decl_MADV_FREE" = "yes" || test "$ac_cv_have_decl_MADV_DONTNEED" = "yes" ; then use_large_address_space=yes fi fi fi fi if test "$use_large_address_space" = "yes" ; then AC_DEFINE([USE_LARGE_ADDRESS_SPACE], [1], [Enable single heap address space support]) fi dnl ** Use MMAP in the runtime linker? dnl -------------------------------------------------------------- case ${TargetOS} in linux|freebsd|dragonfly|netbsd|openbsd|kfreebsdgnu|gnu|solaris2) RtsLinkerUseMmap=1 ;; darwin) # Don't use mmap on powerpc/darwin as the mmap there doesn't support # reallocating. Reallocating is needed to allocate jump islands just # after each object image. Jumps to these jump islands use relative # branches which are limited to offsets that can be represented in # 24-bits. if test "$TargetArch" != "powerpc" ; then RtsLinkerUseMmap=1 else RtsLinkerUseMmap=0 fi ;; *) # Windows (which doesn't have mmap) and everything else. RtsLinkerUseMmap=0 ;; esac AC_DEFINE_UNQUOTED([RTS_LINKER_USE_MMAP], [$RtsLinkerUseMmap], [Use mmap in the runtime linker]) dnl ** Have libdw? dnl -------------------------------------------------------------- UseLibdw=NO USE_LIBDW=0 AC_ARG_ENABLE(dwarf-unwind, [AC_HELP_STRING([--enable-dwarf-unwind], [Enable DWARF unwinding support in the runtime system via elfutils' libdw [default=no]])], [AC_CHECK_LIB(dw, dwfl_attach_state, [UseLibdw=YES], [UseLibdw=NO])], [UseLibdw=NO] ) AC_SUBST(UseLibdw) if test $UseLibdw = "YES" ; then USE_LIBDW=1 fi AC_DEFINE_UNQUOTED([USE_LIBDW], [$USE_LIBDW], [Set to 1 to use libdw]) dnl ** Have libnuma? dnl -------------------------------------------------------------- HaveLibNuma=0 AC_CHECK_HEADERS([numa.h numaif.h]) if test "$ac_cv_header_numa_h$ac_cv_header_numaif_h" = "yesyes" ; then AC_CHECK_LIB(numa, numa_available,HaveLibNuma=1) fi AC_DEFINE_UNQUOTED([HAVE_LIBNUMA], [$HaveLibNuma], [Define to 1 if you have libnuma]) dnl ** Documentation dnl -------------------------------------------------------------- if test -n "$SPHINXBUILD"; then BUILD_MAN=YES BUILD_SPHINX_HTML=YES if test -n "$XELATEX"; then BUILD_SPHINX_PDF=YES else BUILD_SPHINX_PDF=NO fi else BUILD_MAN=NO BUILD_SPHINX_HTML=NO BUILD_SPHINX_PDF=NO fi AC_SUBST(BUILD_MAN) AC_SUBST(BUILD_SPHINX_HTML) AC_SUBST(BUILD_SPHINX_PDF) LIBRARY_VERSION(base) LIBRARY_VERSION(Cabal, Cabal/Cabal) LIBRARY_VERSION(ghc-prim) LIBRARY_VERSION(ghc-compact) LIBRARY_ghc_VERSION="$ProjectVersion" AC_SUBST(LIBRARY_ghc_VERSION) 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 # Create the configuration for the Hadrian build system if it is present if test -e hadrian/cfg/system.config.in; then AC_CONFIG_FILES([hadrian/cfg/system.config]) 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=$1 AC_SUBST(MakeCmd) fi } checkMake380 make checkMake380 gmake AC_CONFIG_FILES([mk/config.mk mk/install.mk mk/project.mk compiler/ghc.cabal ghc/ghc-bin.cabal utils/runghc/runghc.cabal libraries/ghc-boot/ghc-boot.cabal libraries/ghc-boot-th/ghc-boot-th.cabal libraries/ghci/ghci.cabal settings docs/users_guide/ghc_config.py docs/index.html libraries/prologue.txt utils/mkUserGuidePart/mkUserGuidePart.cabal distrib/configure.ac]) AC_OUTPUT [ if test "$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 " ---------------------------------------------------------------------- Configure completed successfully. Building GHC version : $ProjectVersion Git commit id : $ProjectGitCommitId Build platform : $BuildPlatform Host platform : $HostPlatform Target platform : $TargetPlatform " echo "\ Bootstrapping using : $WithGhc which is version : $GhcVersion " if test "x$CC_LLVM_BACKEND" = "x1"; then if test "x$CC_CLANG_BACKEND" = "x1"; then CompilerName="clang " else CompilerName="llvm-gcc " fi else CompilerName="gcc " fi echo "\ Using (for bootstrapping) : $CC_STAGE0 Using $CompilerName : $CC which is version : $GccVersion Building a cross compiler : $CrossCompiling Unregisterised : $Unregisterised hs-cpp : $HaskellCPPCmd hs-cpp-flags : $HaskellCPPArgs ld : $LdCmd nm : $NmCmd objdump : $ObjdumpCmd Happy : $HappyCmd ($HappyVersion) Alex : $AlexCmd ($AlexVersion) Perl : $PerlCmd sphinx-build : $SPHINXBUILD xelatex : $XELATEX Using LLVM tools llc : $LlcCmd opt : $OptCmd" if test "$HSCOLOUR" = ""; then echo " HsColour was not found; documentation will not contain source links " else echo "\ HsColour : $HSCOLOUR " fi echo "\ Tools to build Sphinx HTML documentation available: $BUILD_SPHINX_HTML Tools to build Sphinx PDF documentation available: $BUILD_SPHINX_PDF" echo "---------------------------------------------------------------------- " echo "\ For a standard build of GHC (fully optimised with profiling), type (g)make. To make changes to the default build configuration, copy the file mk/build.mk.sample to mk/build.mk, and edit the settings in there. For more information on how to configure your GHC build, see http://ghc.haskell.org/trac/ghc/wiki/Building "]