1 dnl == autoconf source for the Glasgow FP tools ==
2 dnl (run "grep '^dnl \*' configure.in | sed -e 's/dnl / /g; s/\*\*/ +/g;'"
3 dnl (or some such) to see the outline of this file)
6 # (c) The AQUA Project, Glasgow University, 1994-1998
8 # Configure script template for the Glasgow functional programming tools
10 # Process with 'autoconf' to get a working configure script.
12 # For the generated configure script, do "./configure --help" to
13 # see what flags are available. (Better yet, read the documentation!)
16 # First off, a distrib sanity check..
17 AC_INIT(mk/config.mk.in)
19 dnl * We require autoconf version 2.53 due to the use of AC_SYS_LARGEFILE
22 dnl * Declare subdirectories that have a private configure script
24 dnl After the toplevel configuration is complete, the script will recurse into
25 dnl these subdirectories (the use of cache values makes repeated checks cheap)
26 dnl (We probably have to add hslibs/{OpenGL,GLUT} here later...)
27 AC_CONFIG_SUBDIRS(ghc)
29 # -------------------------------------------------------------------------
30 # Prepare to generate the following header files
33 AC_CONFIG_HEADER(mk/config.h)
35 # No, semi-sadly, we don't do `--srcdir'...
36 if test x"$srcdir" != 'x.' ; then
37 echo "This configuration does not support the \`--srcdir' option.."
41 dnl--------------------------------------------------------------------
42 dnl * Choose host(/target/build) platform
43 dnl--------------------------------------------------------------------
45 dnl Guess host/target/build platform(s) if necessary.
48 # "$host" defaults to "$target"
49 if test "x$host" = xNONE ; then
53 dnl ** canonicalize platform names
54 BuildPlatform=`/bin/sh $srcdir/config.sub $build` || exit 1
55 HostPlatform=`/bin/sh $srcdir/config.sub $host` || exit 1
56 TargetPlatform=`/bin/sh $srcdir/config.sub $target` || exit 1
58 if test x"$TargetPlatform" != x"$HostPlatform" ; then
59 echo "GHC configuration does not support differing host/target (i.e., cross-compiling)"
65 # The following will be more difficult when we *are* cross-compiling.
66 # Suitable names to slam in *_CPP are in platform.h.in.
67 # We also record the architecture, vendor, and operating system (OS)
70 alpha*-dec-osf[[12]]*)
71 HostPlatform=alpha-dec-osf1 # canonicalise for our purposes
72 TargetPlatform=alpha-dec-osf1 # this will work for now... (hack)
73 BuildPlatform=alpha-dec-osf1 # hack
74 HostPlatform_CPP='alpha_dec_osf1'
79 alpha*-dec-osf[[345]]*)
80 HostPlatform=alpha-dec-osf3 # canonicalise for our purposes
81 TargetPlatform=alpha-dec-osf3 # this will work for now... (hack)
82 BuildPlatform=alpha-dec-osf3 # hack
83 HostPlatform_CPP='alpha_dec_osf3'
88 alpha*-unknown-linux*)
89 HostPlatform=alpha-unknown-linux
90 TargetPlatform=alpha-unknown-linux
91 BuildPlatform=alpha-unknown-linux
92 HostPlatform_CPP='alpha_unknown_linux'
94 HostVendor_CPP='unknown'
97 alpha*-unknown-freebsd*)
98 HostPlatform=alpha-unknown-freebsd
99 TargetPlatform=alpha-unknown-freebsd
100 BuildPlatform=alpha-unknown-freebsd
101 HostPlatform_CPP='alpha_unknown_freebsd'
103 HostVendor_CPP='unknown'
107 HostPlatform=hppa1.1-hp-hpux # canonicalise for our purposes (hack)
108 TargetPlatform=hppa1.1-hp-hpux
109 BuildPlatform=hppa1.1-hp-hpux
110 HostPlatform_CPP='hppa1_1_hp_hpux'
111 HostArch_CPP='hppa1_1'
115 i[[3456]]86-*-linuxaout*)
116 HostPlatform=i386-unknown-linuxaout # hack again
117 TargetPlatform=i386-unknown-linuxaout
118 BuildPlatform=i386-unknown-linuxaout
119 HostPlatform_CPP='i386_unknown_linuxaout'
121 HostVendor_CPP='unknown'
122 HostOS_CPP='linuxaout'
124 i[[3456]]86-*-linux*)
125 HostPlatform=i386-unknown-linux # hack again
126 TargetPlatform=i386-unknown-linux
127 BuildPlatform=i386-unknown-linux
128 HostPlatform_CPP='i386_unknown_linux'
130 HostVendor_CPP='unknown'
133 i[[3456]]86-*-freebsd[[3-9]]*) # FreeBSD 3.0+ uses ELF
134 HostPlatform=i386-unknown-freebsd # hack again
135 TargetPlatform=i386-unknown-freebsd
136 BuildPlatform=i386-unknown-freebsd
137 HostPlatform_CPP='i386_unknown_freebsd'
139 HostVendor_CPP='unknown'
142 i[[3456]]86-*-freebsd2*) # Older FreeBSDs are a.out
143 HostPlatform=i386-unknown-freebsd2 # hack again
144 TargetPlatform=i386-unknown-freebsd2
145 BuildPlatform=i386-unknown-freebsd2
146 HostPlatform_CPP='i386_unknown_freebsd2'
148 HostVendor_CPP='unknown'
149 HostOS_CPP='freebsd2'
151 i[[3456]]86-*-netbsd*)
152 HostPlatform=i386-unknown-netbsd # hack again
153 TargetPlatform=i386-unknown-netbsd
154 BuildPlatform=i386-unknown-netbsd
155 HostPlatform_CPP='i386_unknown_netbsd'
157 HostVendor_CPP='unknown'
160 i[[3456]]86-*-openbsd*)
161 HostPlatform=i386-unknown-openbsd # hack again
162 TargetPlatform=i386-unknown-openbsd
163 BuildPlatform=i386-unknown-openbsd
164 HostPlatform_CPP='i386_unknown_openbsd'
166 HostVendor_CPP='unknown'
169 i[[3456]]86-*-solaris2*)
170 HostPlatform=i386-unknown-solaris2 # hack again
171 TargetPlatform=i386-unknown-solaris2
172 BuildPlatform=i386-unknown-solaris2
173 HostPlatform_CPP='i386_unknown_solaris2'
175 HostVendor_CPP='unknown'
176 HostOS_CPP='solaris2'
178 i[[3456]]86-*-cygwin*)
179 HostPlatform=i386-unknown-cygwin32 # hack again
180 TargetPlatform=i386-unknown-cygwin32
181 BuildPlatform=i386-unknown-cygwin32
182 HostPlatform_CPP='i386_unknown_cygwin32'
184 HostVendor_CPP='unknown'
185 HostOS_CPP='cygwin32'
188 i[[3456]]86-*-mingw32*)
189 HostPlatform=i386-unknown-mingw32 # hack again
190 TargetPlatform=i386-unknown-mingw32
191 BuildPlatform=i386-unknown-mingw32
192 HostPlatform_CPP='i386_unknown_mingw32'
194 HostVendor_CPP='unknown'
199 HostPlatform=ia64-unknown-linux # hack again
200 TargetPlatform=ia64-unknown-linux
201 BuildPlatform=ia64-unknown-linux
202 HostPlatform_CPP='ia64_unknown_linux'
204 HostVendor_CPP='unknown'
208 HostPlatform_CPP='m68k_next_nextstep2'
210 HostVendor_CPP='next'
211 HostOS_CPP='nextstep2'
214 HostPlatform_CPP='m68k_next_nextstep3'
216 HostVendor_CPP='next'
217 HostOS_CPP='nextstep3'
219 i[[3456]]86-next-nextstep3)
220 HostPlatform=i386-next-nextstep3 # hack again
221 TargetPlatform=i386-next-nextstep3
222 BuildPlatform=i386-next-nextstep3
223 HostPlatform_CPP='i386_next_nextstep3'
225 HostVendor_CPP='next'
226 HostOS_CPP='nextstep3'
229 HostPlatform=m68k-unknown-openbsd
230 TargetPlatform=m68k-unknown-openbsd
231 BuildPlatform=m68k-unknown-openbsd
232 HostPlatform_CPP='m68k_unknown_openbsd'
234 HostVendor_CPP='unknown'
238 HostPlatform=m68k-apple-netbsd
239 TargetPlatform=m68k-apple-netbsd
240 BuildPlatform=m68k-apple-netbsd
241 HostPlatform_CPP='m68k_apple_netbsd'
243 HostVendor_CPP='apple'
247 HostPlatform=m68k-sun-sunos4
248 TargetPlatform=m68k-sun-sunos4 #hack
249 BuildPlatform=m68k-sun-sunos4 #hack
250 HostPlatform_CPP='m68k_sun_sunos4'
256 HostPlatform_CPP='mips_dec_ultrix'
257 HostArch_CPP='mipsel' # NB a little different
262 HostPlatform=mips-sgi-irix
263 TargetPlatform=mips-sgi-irix #hack
264 BuildPlatform=mips-sgi-irix #hack
265 HostPlatform_CPP='mips_sgi_irix'
266 HostArch_CPP='mipseb' # NB a little different
271 HostPlatform=rs6000-ibm-aix
272 TargetPlatform=rs6000-ibm-aix #hack
273 BuildPlatform=rs6000-ibm-aix #hack
274 HostPlatform_CPP='rs6000_ibm_aix'
275 HostArch_CPP='rs6000'
280 HostPlatform=powerpc-ibm-aix
281 TargetPlatform=powerpc-ibm-aix #hack
282 BuildPlatform=powerpc-ibm-aix #hack
283 HostPlatform_CPP='powerpc_ibm_aix'
284 HostArch_CPP='powerpc'
288 powerpc-apple-darwin*)
289 HostPlatform=powerpc-apple-darwin
290 TargetPlatform=powerpc-apple-darwin #hack
291 BuildPlatform=powerpc-apple-darwin #hack
292 HostPlatform_CPP='powerpc_apple_darwin'
293 HostArch_CPP='powerpc'
294 HostVendor_CPP='apple'
298 HostPlatform=sparc-sun-sunos4
299 TargetPlatform=sparc-sun-sunos4 #hack
300 BuildPlatform=sparc-sun-sunos4 #hack
301 HostPlatform_CPP='sparc_sun_sunos4'
307 HostPlatform=sparc-sun-solaris2
308 TargetPlatform=sparc-sun-solaris2 #hack
309 BuildPlatform=sparc-sun-solaris2 #hack
310 HostPlatform_CPP='sparc_sun_solaris2'
313 HostOS_CPP='solaris2'
316 echo "Unrecognised platform: $HostPlatform"
320 echo "Canonicalised to: $HostPlatform"
321 test x"$HostPlatform" != x"$TargetPlatform" && echo "Target platform set to $TargetPlatform"
322 test x"$BuildPlatform" != x"$HostPlatform" && echo "Build platform set to $BuildPlatform"
324 BuildPlatform_CPP=$HostPlatform_CPP
325 TargetPlatform_CPP=$HostPlatform_CPP
326 BuildArch_CPP=$HostArch_CPP
327 TargetArch_CPP=$HostArch_CPP
328 BuildOS_CPP=$HostOS_CPP
330 TargetOS_CPP=$HostOS_CPP
331 BuildVendor_CPP=$HostVendor_CPP
332 TargetVendor_CPP=$HostVendor_CPP
334 dnl Cannot afford all these SUBSTs (because of braindead seds w/ 99 cmd limits)
335 dnl AC_SUBST(BuildPlatform)
337 AC_SUBST(HostPlatform)
338 AC_SUBST(TargetPlatform)
339 AC_SUBST(HostPlatform_CPP)
340 dnl AC_SUBST(BuildPlatform_CPP)
341 dnl AC_SUBST(TargetPlatform_CPP)
343 AC_SUBST(HostArch_CPP)
344 dnl AC_SUBST(BuildArch_CPP)
345 dnl AC_SUBST(TargetArch_CPP)
348 AC_SUBST(HostOS_Full)
349 dnl AC_SUBST(BuildOS_CPP)
350 dnl AC_SUBST(TargetOS_CPP)
352 AC_SUBST(HostVendor_CPP)
353 dnl AC_SUBST(BuildVendor_CPP)
354 dnl AC_SUBST(TargetVendor_CPP)
358 dnl --------------------------------------------------------------
359 dnl * Calculate absolute path to build tree
360 dnl --------------------------------------------------------------
362 AC_MSG_CHECKING(for path to top of build tree)
366 dnl Remove common automounter nonsense
368 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|' | sed 's|^//\(.\)/|\1:/|' `
370 dnl Find 'hardtop_plat', the native format for 'hardtop' (i.e., right kind of \dnl slashes on a Win32 box, but with b-slashes being escaped).
372 case $HostPlatform in
373 i386-unknown-mingw32 | i386-unknown-cygwin32)
374 # convert $hardtop to a path that mingw will understand too
375 cyghardtop=${hardtop}
376 hardtop=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@/@g'`
377 hardtop_plat=`cygpath -w ${cyghardtop} | sed -e 's@\\\\@\\\\\\\\@g'`
380 hardtop_plat=${hardtop}
384 AC_SUBST(hardtop_plat)
386 AC_MSG_RESULT(${hardtop})
388 dnl --------------------------------------------------------------
389 dnl * Project specific configuration options
390 dnl --------------------------------------------------------------
391 dnl What follows is a bunch of options that can either be configured
392 dnl through command line options to the configure script or by
393 dnl supplying defns in the build tree's mk/build.mk. Having the option to
394 dnl use either is considered a Feature.
396 dnl ** What command to use to compile compiler sources ?
397 dnl --------------------------------------------------------------
400 [ --with-ghc=<haskell compiler>
401 Use a command different from 'ghc' to compile GHC-specific Haskell code
402 (including GHC itself).
404 [ WithGhc="$withval" ],
406 if test "$GHC" = ""; then
407 AC_PATH_PROG(GHC,ghc)
415 [ --with-hc=<haskell compiler>
416 Use a command different from 'ghc' to compile generic Haskell code.
423 if test "$WithGhc" != ""; then
424 FPTOOLS_GHC_VERSION([GhcVersion], [GhcMajVersion], [GhcMinVersion], [GhcPatchLevel])dnl
425 AC_SUBST(GhcVersion)dnl
426 AC_SUBST(GhcMajVersion)dnl
427 AC_SUBST(GhcMinVersion)dnl
428 AC_SUBST(GhcPatchLevel)dnl
431 AC_PATH_PROGS(NHC,nhc nhc98)
432 AC_PATH_PROG(HBC,hbc)
434 dnl ** Which gcc to use?
435 dnl --------------------------------------------------------------
437 [ --with-gcc=<gcc command>
438 Use a different command instead of 'gcc' for the GNU C compiler.
440 [WhatGccIsCalled="$withval"
441 if test "x$HostPlatform" = "xi386-unknown-mingw32"; then
442 # Canonicalise to <drive>:/path/to/gcc
443 withval=`cygpath -w ${withval} | sed -e 's@\\\\@/@g' `
446 [WhatGccIsCalled="gcc"]
448 AC_SUBST(WhatGccIsCalled)
450 dnl ** Booting from .hc files?
451 dnl --------------------------------------------------------------
452 AC_ARG_ENABLE(hc-boot,
454 Boot the Glasgow Haskell Compiler from intermediate .hc files.
455 (This option is mostly of interest to porters.)
460 AC_SUBST(BootingFromHc)
462 dnl ** Booting from unregisterised .hc files?
463 dnl --------------------------------------------------------------
464 AC_ARG_ENABLE(hc-boot-unregisterised,
465 [ --enable-hc-boot-unregisterised
466 With --enable-hc-boot, treat the intermediate .hc files as
467 unregisterised rather than registerised code.
468 (This option is mostly of interest to porters.)
470 [BootingFromUnregisterisedHc=YES],
471 [BootingFromUnregisterisedHc=NO]
473 AC_SUBST(BootingFromUnregisterisedHc)
475 if test "$BootingFromHc" = "NO"; then
476 if test "$BootingFromUnregisterisedHc" = "YES"; then
477 AC_MSG_ERROR([--enable-hc-boot-unregisterised requires --enable-hc-boot.])
481 dnl ** Must have GHC to build GHC, unless --enable-hc-boot is on
482 if test "$BootingFromHc" = "NO" -a "$WithGhc" = "" -a -d "$srcdir/ghc"; then
483 AC_MSG_ERROR([GHC is required unless bootstrapping from .hc files.])
486 dnl ** Enable multi-thread friendly RTS?
487 dnl --------------------------------------------------------------
488 AC_ARG_ENABLE(threaded-rts,
489 [ --enable-threaded-rts
490 Support better interop with OS threads.
495 AC_SUBST(ThreadedRts)
497 dnl ** Enable the construction of Win32 DLLs?
498 dnl --------------------------------------------------------------
499 AC_ARG_ENABLE(win32-dlls,
500 [ --enable-win32-dlls
501 If on a Win32 platform running mingw32/cygwin, enable the
502 construction of DLLs containing ghc-compiled code.
508 *) echo "Unrecognised win32 platform: $HostPlatform"
516 AC_SUBST(EnableWin32DLLs)
517 if test x"$EnableWin32DLLs" = "xYES" ; then
518 AC_DEFINE(HAVE_WIN32_DLL_SUPPORT)
521 dnl ** Enable the building of the ObjectIO?
522 dnl --------------------------------------------------------------
523 AC_ARG_ENABLE(objectio,
525 Build ObjectIO, a portable GUI library for Haskell.
527 [GhcLibsWithObjectIO=YES],
528 [GhcLibsWithObjectIO=NO]
530 AC_SUBST(GhcLibsWithObjectIO)
532 dnl ** Enable the building of the OpenGL/GLUT binding in hslibs?
533 dnl --------------------------------------------------------------
534 AC_ARG_ENABLE(hopengl,
536 Build HOpenGL, a Haskell binding for OpenGL/GLUT.
537 On Mac OS X, use --enable-hopengl=x11 to use X11 instead
538 of the "native" libraries.
540 [GhcLibsWithHOpenGL=YES],
541 [GhcLibsWithHOpenGL=NO]
544 if test x"$TargetOS_CPP" = x"darwin"; then
545 if test x"$enable_hopengl" != x"x11"; then
546 AC_DEFINE(USE_QUARTZ_OPENGL)
551 AC_SUBST(GhcLibsWithHOpenGL)
553 dnl ** .NET interop support?
554 dnl --------------------------------------------------------------
555 AC_ARG_ENABLE(dotnet,
557 Build .NET interop layer.
559 [DotnetSupport=YES; AC_DEFINE(WANT_DOTNET_SUPPORT)],
562 AC_SUBST(DotnetSupport)
564 dnl --------------------------------------------------------------
565 dnl End of configure script option section
566 dnl --------------------------------------------------------------
569 dnl --------------------------------------------------------------
570 dnl * General configuration checks
571 dnl --------------------------------------------------------------
576 dnl ** look for `perl', but only in /bin on Windows
579 AC_CHECK_PROG(PerlCmd,perl,/bin/perl,,/bin)
580 if test -z "$PerlCmd"; then
581 echo "You must install the version of Perl shipped with GHC"
582 echo "(or a compatible one) in /bin."
587 AC_PATH_PROG(PerlCmd,perl)
588 if test -z "$PerlCmd"; then
589 echo "You must install perl before you can continue"
590 echo "Perhaps it is already installed, but not in your PATH?"
593 FPTOOLS_CHECK_PERL_VERSION
598 dnl ** does #! path/to/perl work? (sometimes it's too long...)
601 dnl ** check for Python
602 AC_PATH_PROG(PythonCmd,python)
604 dnl ** look for GCC and find out which version
605 dnl Figure out which C compiler to use. Gcc is preferred.
606 dnl If gcc, make sure it's at least 2.1
610 FPTOOLS_GCC_NEEDS_NO_OMIT_LFPTR
612 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
615 dnl ** Without optimization some INLINE trickery fails for GHCi
618 dnl ** Try to add -mno-cygwin to the C compiler options for mingw32 targets
619 if test x"$TargetOS_CPP" = x"mingw32"; then
620 FPTOOLS_CC_FLAG(-mno-cygwin,CC_SUPPORTS_MNO_CYGWIN)
621 SRC_CC_OPTS="$CC_SUPPORTS_MNO_CYGWIN $SRC_CC_OPTS"
622 CPPFLAGS="$CC_SUPPORTS_MNO_CYGWIN $CPPFLAGS"
624 AC_SUBST(SRC_CC_OPTS)
626 dnl ** figure out how to do context diffs
629 dnl ** Find find command (for Win32's benefit)
632 dnl ** look for a decent parser generator (bison preferred)
633 dnl (FPTOOLS_PROG_YACCY is AC_PROG_YACC, but with some extra testing
634 dnl on the suitability of the 'yacc' returned.)
637 dnl ** Find lex command (lex or flex) - *doesn't* use autoconf's
638 dnl AC_PROG_LEX, since it doesn't actually check whether 'lex'
639 dnl exists if 'flex' doesn't.
642 dnl ** figure out how to do a BSD-ish install
645 dnl If you can run configure, you certainly have /bin/sh
646 AC_DEFINE(HAVE_BIN_SH)
648 dnl ** how to invoke `ar' and `ranlib'
649 FPTOOLS_PROG_AR_AND_RANLIB
651 dnl ** Check to see whether ln -s works
655 dnl ** Find the path to sed
656 AC_PATH_PROG(SedCmd,sed)
659 dnl ** check for time command
660 AC_PATH_PROG(TimeCmd,time)
663 dnl if GNU tar is named gtar, look for it first.
664 AC_PATH_PROGS(TarCmd,gtar tar,tar)
666 dnl ** check for gzip/compress
667 AC_PATH_PROGS(CompressCmd,gzip compress,gzip)
669 dnl ** check for jade/openjade & determine a working catalog
670 AC_PATH_PROGS(JadeCmd,openjade jade,jade)
671 FPTOOLS_DOCBOOK_CATALOG(Catalog, $JadeCmd, docs/fptools-both.dsl,
672 /etc/sgml/catalog /etc/sgml.catalog /usr/share/sgml/CATALOG.docbkdsl /usr/local/share/sgml/catalog glafp-utils/docbook/CATALOG*)
673 if test -z "$Catalog"; then
674 AC_MSG_RESULT([Warning: You will not be able to build the documentation.])
677 yes) # assume it is provided by other means (e.g., SGML_CATALOG_FILES env var).
683 Catalog=`cygpath -w $hardtop/$Catalog`
685 *) Catalog=$hardtop/$Catalog
692 compress_nm=`basename $CompressCmd`
693 if test x"$compress_nm" = xgzip; then
694 CompressCmd="$CompressCmd -d"
699 AC_SUBST(CompressCmd)
700 AC_SUBST(CompressSuffix)
702 dnl ** check for ghc-pkg command
704 ghc_pkg_guess=`echo $WithGhc | sed 's@ghc\([^/\\]*\)$@ghc-pkg\1@'`
706 if $ghc_pkg_guess -l >/dev/null 2>/dev/null; then
707 GhcPkgCmd=$ghc_pkg_guess
708 AC_MSG_NOTICE([using $ghc_pkg_guess for ghc-pkg])
710 AC_PATH_PROG(GhcPkgCmd,ghc-pkg)
713 AC_ARG_WITH(greencard,
714 [ --with-greencard=<greencard compiler>
715 Use a command different from 'green-card' to compile GreenCard files
718 GreencardCmd=$withval;
719 FPTOOLS_GREENCARD(3.00)
723 AC_ARG_ENABLE(src-tree-happy,
724 [ --enable-src-tree-happy
725 Build and use source tree (fptools/happy) version of happy.
727 [UseSrcTreeHappy=YES],
730 dnl ** check for installed happy binary + version
731 dnl (don't do it if we're booting from .hc files though.)
732 if test "$BootingFromHc" = "NO"; then
736 AC_ARG_ENABLE(src-tree-haddock,
737 [ --enable-src-tree-haddock
738 Build and use source tree (fptools/haddock) version of haddock.
740 [UseSrcTreeHaddock=YES],
741 [UseSrcTreeHaddock=NO]
743 dnl ** check for installed haddock
746 dnl --------------------------------------------------
747 dnl ### program checking section ends here ###
748 dnl --------------------------------------------------
750 dnl --------------------------------------------------
751 dnl * Platform header file and syscall feature tests
752 dnl ### checking the state of the local header files and syscalls ###
754 dnl ** check for full ANSI header (.h) files
757 dnl ** Enable large file support. NB. do this before testing the type of
758 dnl off_t, because it will affect the result of that test.
761 dnl ** check for specific header (.h) files that we are interested in
762 AC_CHECK_HEADERS(Files.h arpa/inet.h assert.h console.h ctype.h dirent.h errno.h fcntl.h float.h ftw.h grp.h ieee754.h inttypes.h limits.h malloc.h memory.h nlist.h pascal.h pwd.h sgtty.h siginfo.h signal.h stat.h stdint.h stdlib.h stddef.h stdarg.h string.h sys/fault.h sys/file.h sys/ioctl.h sys/limits.h sys/mman.h sys/param.h sys/procfs.h sys/resource.h sys/signal.h sys/socket.h netdb.h netinet/in.h netinet/tcp.h sys/stat.h sys/syscall.h sys/time.h sys/timeb.h sys/timers.h sys/times.h sys/types.h sys/un.h sys/utsname.h sys/vadvise.h sys/wait.h termio.h termios.h time.h types.h unistd.h utime.h values.h bfd.h winsock.h pthread.h sys/uio.h)
763 AC_CHECK_HEADER(unistd.h,[AC_CHECK_FUNCS(lchown)])
765 AC_CHECK_HEADER(readline/readline.h, [HaveReadlineReadlineH=YES], [HaveReadlineReadlineH=NO])
766 AC_CHECK_HEADER(readline/history.h, [HaveReadlineHistoryH=YES], [HaveReadlineHistoryH=NO])
768 if test $HaveReadlineReadlineH = YES && test $HaveReadlineHistoryH = YES ; then
769 HaveReadlineHeaders=YES
770 AC_DEFINE(HAVE_READLINE_HEADERS,1)
772 HaveReadlineHeaders=NO
773 AC_DEFINE(HAVE_READLINE_HEADERS,0)
775 AC_SUBST(HaveReadlineHeaders)
777 dnl ** check for DOS include files
778 AC_CHECK_HEADERS(dos.h conio.h io.h std.h)
780 dnl ** check for Windows include files
781 AC_CHECK_HEADERS(windows.h)
783 dnl ** check for OpenGL include files
784 if test $UseQuartzOpenGL = YES ; then
785 AC_CHECK_HEADERS(OpenGL/gl.h)
787 AC_CHECK_HEADERS(GL/gl.h)
790 dnl ** check if it is safe to include both <time.h> and <sys/time.h>
793 dnl dynamic loading include files
794 AC_CHECK_HEADERS(dlfcn.h dl.h)
796 dnl ** check for farcalloc (in bcc)
797 AC_CHECK_HEADER(alloc.h,[AC_CHECK_FUNCS(farcalloc)])
799 dnl ** check for valloc (in sunos, solaris, mips, amiga, next, minix, ultrix)
800 AC_CHECK_HEADER(malloc.h,[AC_CHECK_FUNCS(valloc)])
802 dnl ** check for POSIX regex
804 AC_CHECK_HEADER(regex.h,[AC_CHECK_FUNC(regcomp, [HavePosixRegex=YES])])
805 AC_SUBST(HavePosixRegex)
807 dnl ** how do we get a timezone name, and UTC offset ?
810 dnl ** what's the type of timezone?
811 FPTOOLS_HAVE_TIMEZONE
812 FPTOOLS_TYPE_TIMEZONE
814 dnl ** do we have altzone?
817 dnl ** does struct stat contain st_blksize?
820 dnl ** do we have long longs?
823 dnl ** check what fields struct msghdr contains
824 FPTOOLS_MSGHDR_MSG_ACCRIGHTS
825 FPTOOLS_MSGHDR_MSG_CONTROL
827 dnl ** what are the sizes of various types
828 dnl (these must come before GHC_CHECK_ALIGNMENT)
829 AC_CHECK_SIZEOF(char, 1)
830 AC_CHECK_SIZEOF(double, 8)
831 AC_CHECK_SIZEOF(float, 4)
832 AC_CHECK_SIZEOF(int, 4)
833 AC_CHECK_SIZEOF(long, 4)
834 if test "$fptools_cv_have_long_long" = yes; then
835 AC_CHECK_SIZEOF(long long, 8)
837 AC_CHECK_SIZEOF(short, 2)
838 AC_CHECK_SIZEOF(unsigned char, 1)
839 AC_CHECK_SIZEOF(unsigned int, 4)
840 AC_CHECK_SIZEOF(unsigned long, 4)
841 if test "$fptools_cv_have_long_long" = yes; then
842 AC_CHECK_SIZEOF(unsigned long long, 8)
844 AC_CHECK_SIZEOF(unsigned short, 2)
845 AC_CHECK_SIZEOF(void *, 4)
847 dnl ** what are alignment constraints on various types
848 FPTOOLS_CHECK_ALIGNMENT(char)
849 FPTOOLS_CHECK_ALIGNMENT(double)
850 FPTOOLS_CHECK_ALIGNMENT(float)
851 FPTOOLS_CHECK_ALIGNMENT(int)
852 FPTOOLS_CHECK_ALIGNMENT(long)
853 if test "$fptools_cv_have_long_long" = yes; then
854 FPTOOLS_CHECK_ALIGNMENT(long long)
856 FPTOOLS_CHECK_ALIGNMENT(short)
857 FPTOOLS_CHECK_ALIGNMENT(unsigned char)
858 FPTOOLS_CHECK_ALIGNMENT(unsigned int)
859 FPTOOLS_CHECK_ALIGNMENT(unsigned long)
860 if test "$fptools_cv_have_long_long" = yes; then
861 FPTOOLS_CHECK_ALIGNMENT(unsigned long long)
863 FPTOOLS_CHECK_ALIGNMENT(unsigned short)
864 FPTOOLS_CHECK_ALIGNMENT(void *)
866 dnl ** map standard C types and ISO types to Haskell types
867 FPTOOLS_CHECK_HTYPE(char)
868 FPTOOLS_CHECK_HTYPE(signed char)
869 FPTOOLS_CHECK_HTYPE(unsigned char)
870 FPTOOLS_CHECK_HTYPE(short)
871 FPTOOLS_CHECK_HTYPE(unsigned short)
872 FPTOOLS_CHECK_HTYPE(int)
873 FPTOOLS_CHECK_HTYPE(unsigned int)
874 FPTOOLS_CHECK_HTYPE(long)
875 FPTOOLS_CHECK_HTYPE(unsigned long)
876 if test "$fptools_cv_have_long_long" = yes; then
877 FPTOOLS_CHECK_HTYPE(long long)
878 FPTOOLS_CHECK_HTYPE(unsigned long long)
880 FPTOOLS_CHECK_HTYPE(float)
881 FPTOOLS_CHECK_HTYPE(double)
882 FPTOOLS_CHECK_HTYPE(ptrdiff_t)
883 FPTOOLS_CHECK_HTYPE(size_t)
884 FPTOOLS_CHECK_HTYPE(wchar_t)
885 dnl Int32 is a HACK for non-ISO C compilers
886 FPTOOLS_CHECK_HTYPE(sig_atomic_t, Int32)
887 FPTOOLS_CHECK_HTYPE(clock_t)
888 FPTOOLS_CHECK_HTYPE(time_t)
889 FPTOOLS_CHECK_HTYPE(dev_t, Word32)
890 FPTOOLS_CHECK_HTYPE(ino_t)
891 FPTOOLS_CHECK_HTYPE(mode_t)
892 FPTOOLS_CHECK_HTYPE(off_t)
893 FPTOOLS_CHECK_HTYPE(pid_t)
894 FPTOOLS_CHECK_HTYPE(gid_t)
895 FPTOOLS_CHECK_HTYPE(uid_t)
896 FPTOOLS_CHECK_HTYPE(cc_t)
897 FPTOOLS_CHECK_HTYPE(speed_t)
898 FPTOOLS_CHECK_HTYPE(tcflag_t)
899 FPTOOLS_CHECK_HTYPE(blkcnt_t)
900 FPTOOLS_CHECK_HTYPE(nlink_t)
901 FPTOOLS_CHECK_HTYPE(ssize_t)
902 FPTOOLS_CHECK_HTYPE(rlim_t)
904 dnl ** Map OpenGL data types to Haskell types
905 if test $GhcLibsWithHOpenGL = YES ; then
906 FPTOOLS_CHECK_HTYPE(GLboolean)
907 FPTOOLS_CHECK_HTYPE(GLbyte)
908 FPTOOLS_CHECK_HTYPE(GLubyte)
909 FPTOOLS_CHECK_HTYPE(GLshort)
910 FPTOOLS_CHECK_HTYPE(GLushort)
911 FPTOOLS_CHECK_HTYPE(GLint)
912 FPTOOLS_CHECK_HTYPE(GLuint)
913 FPTOOLS_CHECK_HTYPE(GLsizei)
914 FPTOOLS_CHECK_HTYPE(GLenum)
915 FPTOOLS_CHECK_HTYPE(GLbitfield)
916 FPTOOLS_CHECK_HTYPE(GLfloat)
917 FPTOOLS_CHECK_HTYPE(GLclampf)
918 FPTOOLS_CHECK_HTYPE(GLdouble)
919 FPTOOLS_CHECK_HTYPE(GLclampd)
922 FPTOOLS_CHECK_CCONSTS(E2BIG EACCES EADDRINUSE EADDRNOTAVAIL EADV EAFNOSUPPORT EAGAIN EALREADY EBADF EBADMSG EBADRPC EBUSY ECHILD ECOMM ECONNABORTED ECONNREFUSED ECONNRESET EDEADLK EDESTADDRREQ EDIRTY EDOM EDQUOT EEXIST EFAULT EFBIG EFTYPE EHOSTDOWN EHOSTUNREACH EIDRM EILSEQ EINPROGRESS EINTR EINVAL EIO EISCONN EISDIR ELOOP EMFILE EMLINK EMSGSIZE EMULTIHOP ENAMETOOLONG ENETDOWN ENETRESET ENETUNREACH ENFILE ENOBUFS ENODATA ENODEV ENOENT ENOEXEC ENOLCK ENOLINK ENOMEM ENOMSG ENONET ENOPROTOOPT ENOSPC ENOSR ENOSTR ENOSYS ENOTBLK ENOTCONN ENOTDIR ENOTEMPTY ENOTSOCK ENOTTY ENXIO EOPNOTSUPP EPERM EPFNOSUPPORT EPIPE EPROCLIM EPROCUNAVAIL EPROGMISMATCH EPROGUNAVAIL EPROTO EPROTONOSUPPORT EPROTOTYPE ERANGE EREMCHG EREMOTE EROFS ERPCMISMATCH ERREMOTE ESHUTDOWN ESOCKTNOSUPPORT ESPIPE ESRCH ESRMNT ESTALE ETIME ETIMEDOUT ETOOMANYREFS ETXTBSY EUSERS EWOULDBLOCK EXDEV)
924 dnl ** can we open files in binary mode?
927 dnl ** check for GetModuleFileName and WinExec (windows only)
928 dnl Old: AC_CHECK_FUNCS(WinExec GetModuleFileName) dnl Windows
929 dnl Doesn't work because the linker can't see the functions if
930 dnl you omit the #include <windows.h>. (I've no idea why not...)
932 FPTOOLS_TRY_LINK_NOWARN(,[
943 if test "$have_winexec" = "1"; then
944 AC_DEFINE(HAVE_WINEXEC)
947 FPTOOLS_TRY_LINK_NOWARN(,[
953 GetModuleFileName((HMODULE)0,dir,0);
957 [have_getmodulefilename=1],
958 [have_getmodulefilename=0])
959 if test "$have_getmodulefilename" = "1"; then
960 AC_DEFINE(HAVE_GETMODULEFILENAME)
963 dnl ** check return type of signal handlers
964 dnl Foo: assumes we can use prototypes.
965 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
966 dnl AC_CACHE_CHECK([type of signal handlers], ac_cv_type_signal_handler,
967 dnl [AC_TRY_COMPILE([#include <sys/types.h>
968 dnl #include <signal.h>
972 dnl void (*signal (int, void (*)(int)))(int);
975 dnl ac_cv_type_signal_handler=void_int,
976 dnl ac_cv_type_signal_handler=int_void)])
977 dnl if test "$ac_cv_type_signal_handler" = void_int; then
978 dnl AC_DEFINE(VOID_INT_SIGNALS)
981 dnl On BCC, signal handlers have type "int(void)", elsewhere its "void(int)".
983 if test "$ac_cv_type_signal" = void; then
984 AC_DEFINE(VOID_INT_SIGNALS)
987 dnl ** check for more functions
988 AC_CHECK_FUNCS(strcasecmp _stricmp stricmp strcmpi)
989 AC_CHECK_FUNCS(strcmp)
990 AC_CHECK_FUNCS(realpath _fullpath)
991 AC_CHECK_FUNCS(PBHSetVolSync macsystem)
992 AC_CHECK_FUNCS(fgetpos fsetpos fseek ftell)
993 AC_CHECK_FUNCS(vsnprintf _vsnprintf)
994 AC_CHECK_FUNCS(snprintf _snprintf )
995 AC_CHECK_FUNCS(popen _popen )
996 AC_CHECK_FUNCS(pclose _pclose )
997 AC_CHECK_FUNCS(setenv unsetenv)
1000 dnl ** check for specific library functions that we are interested in
1001 AC_CHECK_FUNCS(access ftime getclock getpagesize getrusage gettimeofday mktime mprotect readlink setitimer stat lstat symlink sysconf timelocal times vadvise localtime_r gmtime_r readdir_r getgrgid_r getgrnam_r getpwuid_r getpwnam_r)
1003 dnl ** Solaris2 needs additionl flag for getpw*_r()
1004 case "$TargetPlatform" in
1006 unix_SRC_HSC2HS_OPTS="-D_POSIX_PTHREAD_SEMANTICS"
1007 AC_SUBST(unix_SRC_HSC2HS_OPTS)
1011 dnl ** check whether this machine has gmp3 installed
1012 AC_CHECK_LIB(gmp, __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp,
1013 AC_CHECK_LIB(gmp3, __gmpz_fdiv_qr, HaveLibGmp=YES; LibGmp=gmp3,
1014 HaveLibGmp=NO; LibGmp=not-installed))
1015 AC_SUBST(HaveLibGmp)
1018 dnl ** (Mac OS X only: check for HaskellSupport.framework)
1019 HaveFrameworkHaskellSupport=NO
1020 if test $HostPlatform = "powerpc-apple-darwin"; then
1021 AC_MSG_CHECKING([for HaskellSupport.framework])
1023 LIBS="-framework HaskellSupport"
1024 AC_TRY_LINK_FUNC(__gmpz_fdiv_qr, HaveFrameworkHaskellSupport=YES,)
1025 if test $HaveFrameworkHaskellSupport = YES; then
1026 AC_DEFINE(HAVE_FRAMEWORK_HASKELLSUPPORT)
1029 AC_MSG_RESULT([$HaveFrameworkHaskellSupport])
1031 AC_SUBST(HaveFrameworkHaskellSupport)
1033 dnl ** check for mingwex library
1034 AC_CHECK_LIB(mingwex, closedir, HaveLibMingwEx=YES, HaveLibMingwEx=NO)
1035 AC_SUBST(HaveLibMingwEx)
1037 if test $HaveLibMingwEx = YES ; then
1038 AC_DEFINE(HAVE_MINGWEX)
1041 if test "$HaveLibGmp" = "NO"; then
1042 if test "$HostArch_CPP" = "ia64"; then
1043 AC_MSG_ERROR([You need to install libgmp (the in-tree version does not work on IA64).])
1047 dnl ** check whether this machine has GNU regex in libc.
1048 FPTOOLS_REGEX_IN_LIBC
1050 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
1051 dnl the order of these tests matters: bfd needs liberty
1052 AC_CHECK_LIB(iberty, xmalloc)
1053 AC_CHECK_LIB(bfd, bfd_init)
1055 dnl ** check for readline, for Hugs and hslibs' Readline
1056 dnl ncurses supersedes termcap and curses, but for compatibility,
1057 dnl we have to check for all...
1058 AC_CHECK_LIB(ncurses, tputs, HaveLibTermcap=YES; LibTermcap=ncurses,
1059 AC_CHECK_LIB(termcap, tputs, HaveLibTermcap=YES; LibTermcap=termcap,
1060 AC_CHECK_LIB(curses, tputs, HaveLibTermcap=YES; LibTermcap=curses,
1061 HaveLibTermcap=NO; LibTermcap=not-installed)))
1063 if test $HaveLibTermcap = YES ; then
1064 LIBS="-l$LibTermcap $LIBS"
1065 AC_CHECK_LIB(readline, readline, HaveLibReadline=YES, HaveLibReadline=NO)
1068 if test $HaveLibTermcap = YES && test x"$HaveLibReadline" = xYES ; then
1069 AC_DEFINE(HAVE_READLINE_LIBS,1)
1070 LibsReadline="readline $LibTermcap"
1072 AC_DEFINE(HAVE_READLINE_LIBS,0)
1075 AC_SUBST(LibsReadline)
1077 if test "$HaveLibReadline"; then
1078 AC_CHECK_LIB(readline, rl_erase_empty_line,
1079 [AC_DEFINE(HAVE_READLINE_4, 1)],
1080 [AC_DEFINE(HAVE_READLINE_4, 0)])
1081 AC_CHECK_LIB(readline, rl_free_undo_list,
1082 [AC_DEFINE(HAVE_READLINE_4_2, 1)],
1083 [AC_DEFINE(HAVE_READLINE_4_2, 0)])
1085 AC_DEFINE(HAVE_READLINE_4, 0)
1086 AC_DEFINE(HAVE_READLINE_4_2, 0)
1089 dnl ** check for math library
1090 FPTOOLS_CHECK_LIBM()
1093 dnl ** check for X Window System
1096 dnl ** check for OpenGL/GLUT/GLX include paths and libraries
1097 if test $GhcLibsWithHOpenGL = YES ; then
1098 if test $UseQuartzOpenGL = YES ; then
1099 dnl Take a shortcut for Mac OS X native OpenGL:
1100 dnl It's in a non-standard location, but it's always there
1112 dnl ################################################################
1113 dnl Check for libraries
1114 dnl ################################################################
1116 dnl ** check for libdl & RTLD_NEXT
1118 dnl (Mac OS X only) ... but don't check if we already have the
1119 dnl HaskellSupport.framework
1121 if test $HaveFrameworkHaskellSupport = YES; then
1125 AC_DEFINE(HAVE_RTLDLOCAL)
1127 AC_DEFINE(HAVE_RTLDGLOBAL)
1129 AC_DEFINE(HAVE_RTLDNOW)
1131 AC_SUBST(HaveRtldNext)
1132 AC_SUBST(HaveRtldLocal)
1133 AC_SUBST(HaveRtldGlobal)
1134 AC_SUBST(HaveRtldNow)
1136 AC_CHECK_LIB(dl, dlopen,
1138 AC_DEFINE(HAVE_LIBDL)
1141 AC_CHECK_FUNCS(dlopen)
1144 dnl ** sometimes RTLD_NEXT is hidden in #ifdefs we really don't wan to set
1145 AC_MSG_CHECKING(for RTLD_NEXT from dlfcn.h)
1154 AC_DEFINE(HAVE_RTLDNEXT)
1160 AC_SUBST(HaveRtldNext)
1162 dnl ** RTLD_LOCAL isn't available on cygwin or openbsd
1163 AC_MSG_CHECKING(for RTLD_LOCAL from dlfcn.h)
1172 AC_DEFINE(HAVE_RTLDLOCAL)
1178 AC_SUBST(HaveRtldLocal)
1180 dnl ** RTLD_GLOBAL isn't available on openbsd
1181 AC_MSG_CHECKING(for RTLD_GLOBAL from dlfcn.h)
1190 AC_DEFINE(HAVE_RTLDGLOBAL)
1196 AC_SUBST(HaveRtldGlobal)
1198 dnl ** RTLD_NOW isn't available on openbsd
1199 AC_MSG_CHECKING(for RTLD_NOW from dlfcn.h)
1208 AC_DEFINE(HAVE_RTLDNOW)
1214 AC_SUBST(HaveRtldNow)
1217 FPTOOLS_CHECK_LIB_NOWARN(m, atan)
1219 dnl ---------- usleep ----------
1220 dnl --- stolen from guile configure ---
1221 dnl --- FIXME: /usr/include/unistd.h can't be right?
1223 ### On some systems usleep has no return value. If it does have one,
1224 ### we'd like to return it; otherwise, we'll fake it.
1225 AC_CACHE_CHECK([return type of usleep], cv_func_usleep_return_type,
1226 [AC_EGREP_HEADER(changequote(<, >)<void[ ]+usleep>changequote([, ]),
1227 /usr/include/unistd.h,
1228 [cv_func_usleep_return_type=void],
1229 [cv_func_usleep_return_type=int])])
1230 case "$cv_func_usleep_return_type" in
1232 AC_DEFINE(USLEEP_RETURNS_VOID, 1,
1233 [Define if the system headers declare usleep to return void.])
1237 dnl --------------------------------------------------
1238 dnl * test for in_addr_t
1239 dnl --------------------------------------------------
1240 AC_MSG_CHECKING(for in_addr_t in netinet/in.h)
1241 AC_EGREP_HEADER(in_addr_t, netinet/in.h,
1242 [ AC_DEFINE(HAVE_IN_ADDR_T) AC_MSG_RESULT(yes) ],
1245 dnl --------------------------------------------------
1246 dnl * test for Linux sendfile(2)
1247 dnl --------------------------------------------------
1248 AC_MSG_CHECKING(for sendfile in sys/sendfile.h)
1249 AC_EGREP_HEADER(sendfile, sys/sendfile.h,
1250 [ AC_DEFINE(HAVE_LINUX_SENDFILE) AC_MSG_RESULT(yes) ],
1253 dnl --------------------------------------------------
1254 dnl * test for BSD sendfile(2)
1255 dnl --------------------------------------------------
1256 AC_MSG_CHECKING(for sendfile in sys/socket.h)
1257 AC_EGREP_HEADER(sendfile, sys/socket.h,
1258 [ AC_DEFINE(HAVE_BSD_SENDFILE) AC_MSG_RESULT(yes) ],
1261 dnl --------------------------------------------------
1263 dnl --------------------------------------------------
1265 AC_PATH_PROGS(GTK_CONFIG, gtk-config gtk12-config)
1266 if test "$GTK_CONFIG" != ""; then
1267 AC_CACHE_CHECK([for version of GTK+], fptools_cv_gtk_version, [
1268 fptools_cv_gtk_version=`$GTK_CONFIG --version`
1270 GTK_VERSION=$fptools_cv_gtk_version
1275 case $fptools_cv_gtk_version in
1277 *) AC_MSG_WARN([GTK+ not usable; need at least version 1.2])
1282 AC_SUBST(GTK_CONFIG)
1283 AC_SUBST(GTK_VERSION)
1285 dnl --------------------------------------------------
1286 dnl * Miscellaneous feature tests
1287 dnl --------------------------------------------------
1289 dnl ** can we get alloca?
1292 dnl ** Working vfork?
1295 dnl ** determine whether or not const works
1298 dnl ** determine whether ANSI-function prototypes work?
1301 dnl ** are we big endian?
1304 dnl ** check for leading underscores in symbol names
1307 dnl ** check for ld, and whether ld has -x option
1308 AC_PATH_PROG(LdCmdRaw, ld)
1310 mingw32) LdCmd=`cygpath -w ${LdCmdRaw} | sed -e 's@\\\\@/@g' `
1312 *) LdCmd=${LdCmdRaw}
1318 AC_MSG_CHECKING([for SIGPOLL])
1319 AC_EGREP_CPP(we_have_sigpoll,
1320 [#include <signal.h>
1324 ], AC_DEFINE(HAVE_SIGPOLL) haveSIGPOLL=yes, haveSIGPOLL=no)
1325 AC_MSG_RESULT([$haveSIGPOLL])
1327 AC_MSG_CHECKING([for _SC_GETGR_R_SIZE_MAX])
1328 AC_EGREP_CPP(we_have_that_sysconf_thing,
1331 #ifdef _SC_GETGR_R_SIZE_MAX
1332 we_have_that_sysconf_thing
1335 [AC_MSG_RESULT([yes])
1336 AC_DEFINE(HAVE_SC_GETGR_R_SIZE_MAX)],
1337 [AC_MSG_RESULT([no])])
1339 AC_MSG_CHECKING([for _SC_GETPW_R_SIZE_MAX])
1340 AC_EGREP_CPP(we_have_that_sysconf_thing,
1343 #ifdef _SC_GETPW_R_SIZE_MAX
1344 we_have_that_sysconf_thing
1347 [AC_MSG_RESULT([yes])
1348 AC_DEFINE(HAVE_SC_GETPW_R_SIZE_MAX)],
1349 [AC_MSG_RESULT([no])])
1351 AC_OUTPUT(mk/config.mk, echo timestamp > mk/stamp-h )