Annotation of gforth/configure.in, revision 1.87

1.1       anton       1: dnl Process this file with autoconf to produce a configure script.
1.20      anton       2: 
1.73      anton       3: #Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.
1.20      anton       4: 
                      5: #This file is part of Gforth.
                      6: 
                      7: #Gforth is free software; you can redistribute it and/or
                      8: #modify it under the terms of the GNU General Public License
                      9: #as published by the Free Software Foundation; either version 2
                     10: #of the License, or (at your option) any later version.
                     11: 
                     12: #This program is distributed in the hope that it will be useful,
                     13: #but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
                     15: #GNU General Public License for more details.
                     16: 
                     17: #You should have received a copy of the GNU General Public License
                     18: #along with this program; if not, write to the Free Software
1.74      anton      19: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.20      anton      20: 
1.31      anton      21: AC_INIT(engine/engine.c)
1.34      anton      22: 
                     23: dnl We use some automake macros here,
                     24: dnl but don't use automake for creating Makefile.in
1.86      anton      25: AM_INIT_AUTOMAKE(gforth,0.5.9-20020901)
1.47      anton      26: #snapshots have numbers major.minor.release-YYYYMMDD
                     27: #note that lexicographic ordering bust be heeded.
                     28: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
1.86      anton      29: UPDATED="1 September 2002"
1.84      anton      30: AC_SUBST(UPDATED)
1.34      anton      31: AM_CONFIG_HEADER(engine/config.h)
1.57      anton      32: #AM_CYGWIN32
1.14      anton      33: 
1.1       anton      34: AC_ARG_ENABLE(force-reg,
                     35: [  --enable-force-reg    Use explicit register declarations if they appear in
                     36:                          the machine.h file. This can cause a good speedup,
                     37:                          but also incorrect code with some gcc versions on
                     38:                          some processors (default disabled).],
                     39: AC_DEFINE(FORCE_REG))
                     40: 
1.9       pazsan     41: AC_ARG_WITH(debug,
1.10      anton      42: [  --with-debug     specifies option -g to compile with debug info (default)
1.27      anton      43:   --without-debug  omits the -g switch and creates smaller images on
                     44:                    machines where "strip" has problems with gcc style
                     45:                    debugging informations.],
1.9       pazsan     46: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
                     47: 
1.79      pazsan     48: PEEPHOLE="yes"
                     49: AC_ARG_WITH(peephole,
                     50: [  --with-peephole     Enable peephole optimization (default)
                     51:   --without-peephole   disables peephole optimization. Creates smaller,
                     52:                        but slower images.],
                     53: PEEPHOLE="$withval")
1.82      anton      54: 
                     55: #currently we force direct threading this way.  Eventually we should
                     56: #setup in the arch and engine files right
1.79      pazsan     57: 
1.16      anton      58: CFLAGS=$CFLAGS
                     59: 
1.15      pazsan     60: AC_PROG_CC
                     61: 
                     62: if test "$GCC" = "yes"
                     63: then
                     64:    echo "Fine, gcc is available"
                     65: else
                     66:    cat <<'EOF'
1.16      anton      67: Gforth requires GCC-2.0 or higher (it uses GNU C extensions).
                     68: It does not work with other C compilers. Please install the GNU C compiler,
                     69: and try again (or search for a binary distribution for your platform).
1.15      pazsan     70: EOF
                     71:    exit 1
                     72: fi
1.9       pazsan     73: 
1.15      pazsan     74: AC_SUBST(CC)
1.9       pazsan     75: AC_SUBST(DEBUGFLAG)
1.7       anton      76: 
1.10      anton      77: dnl the following macro produces a warning with autoconf-2.1
                     78: AC_CHECK_SIZEOF(char *)
                     79: case "$ac_cv_sizeof_char_p" in
                     80:   2)
                     81:     wordsize=16
                     82:     ;;
                     83:   4)
                     84:     wordsize=32
                     85:     ;;
                     86:   8)
                     87:     wordsize=64
                     88:     ;;
                     89: esac
1.9       pazsan     90: 
1.40      pazsan     91: AC_CHECK_SIZEOF(char)
1.23      pazsan     92: AC_CHECK_SIZEOF(short)
                     93: AC_CHECK_SIZEOF(int)
                     94: AC_CHECK_SIZEOF(long)
                     95: AC_CHECK_SIZEOF(long long)
                     96: 
                     97: ac_cv_int_type_cell=none
                     98: case "$ac_cv_sizeof_char_p" in
1.40      pazsan     99:   $ac_cv_sizeof_int)
                    100:     ac_cv_int_type_cell=int
                    101:     ;;
1.23      pazsan    102:   $ac_cv_sizeof_short)
                    103:     ac_cv_int_type_cell=short
                    104:     ;;
1.40      pazsan    105:   $ac_cv_sizeof_char)
                    106:     ac_cv_int_type_cell=char
1.23      pazsan    107:     ;;
                    108:   $ac_cv_sizeof_long)
                    109:     ac_cv_int_type_cell=long
                    110:     ;;
                    111:   $ac_cv_sizeof_long_long)
                    112:     ac_cv_int_type_cell="long long"
                    113:     ;;
                    114: esac
1.22      pazsan    115: if test "$ac_cv_int_type_cell" != int; then
1.20      anton     116:        echo "So, sizeof(pointer)!=sizeof(int); looks like a DOS C compiler to me."
                    117:        echo "Since you don't have a proper C on this machine, that's one more reason"
                    118:        echo "to use Forth;-)"
                    119: fi
1.23      pazsan    120: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell)
                    121: 
                    122: ac_cv_int_type_double_cell=none
                    123: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    124:   $ac_cv_sizeof_short)
                    125:     ac_cv_int_type_double_cell=short
                    126:     ;;
                    127:   $ac_cv_sizeof_int)
                    128:     ac_cv_int_type_double_cell=int
                    129:     ;;
                    130:   $ac_cv_sizeof_long)
                    131:     ac_cv_int_type_double_cell=long
                    132:     ;;
                    133:   $ac_cv_sizeof_long_long)
                    134:     ac_cv_int_type_double_cell="long long"
                    135:     ;;
                    136: esac
1.21      anton     137: if test "$ac_cv_int_type_double_cell" = none; then
1.20      anton     138:        echo "Emulating double-cell arithmetic. This may be slow."
                    139:        echo "If you find this unacceptable, ask the GCC maintainers to provide proper"
1.23      pazsan    140:        echo 'long longs for your machine (the GCC manual states that they \"are twice as'
                    141:        echo "long as \`long int\'\")."
1.87    ! pazsan    142:        AC_LIBOBJ(dblsub)
1.20      anton     143:        AC_DEFINE(BUGGY_LONG_LONG)
1.23      pazsan    144: else
                    145:   AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell)
1.20      anton     146: fi
                    147: 
1.50      jwilke    148: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
                    149: OLDLDFLAGS=$LDFLAGS
                    150: LDFLAGS="$LDFLAGS -export-dynamic"
1.69      anton     151: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
                    152: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
                    153: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50      jwilke    154: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
                    155: AC_MSG_RESULT($ac_export_dynamic)
                    156: 
1.1       anton     157: #terminology is a bit unusual here: The host is the system on which
                    158: #gforth will run; the system on which configure will run is the `build'
                    159: AC_CANONICAL_HOST
                    160: case "$host_cpu" in
                    161:        hppa*)
1.34      anton     162:                machine=hppa
1.46      anton     163:                $srcdir/mkinstalldirs arch/hppa
1.87    ! pazsan    164:                AC_LIBOBJ(../arch/hppa/cache)
1.50      jwilke    165:                LDFLAGS="$LDFLAGS -Xlinker -N"
1.47      anton     166:                LIBS="$LIBS -L/lib/pa1.1/"
1.1       anton     167:                ;;
                    168:        sparc*)
1.34      anton     169:                machine=sparc
1.1       anton     170:                ;;
1.31      anton     171:        i386)
1.34      anton     172:                machine=386
1.16      anton     173:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31      anton     174:                ;;
                    175:        i486)
1.34      anton     176:                machine=386
1.31      anton     177:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
                    178:                ;;
1.77      anton     179:        i*86)
1.34      anton     180:                machine=386
1.55      anton     181:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56      pazsan    182:                CFLAGS_1="$CFLAGS"
1.87    ! pazsan    183:                CFLAGS="$CFLAGS -march=pentium"
1.56      pazsan    184:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1       anton     185:                ;;
1.72      anton     186:        ia64*)
                    187:                machine=ia64
                    188:                ;;
1.26      pazsan    189:         m68k)
1.34      anton     190:                machine=m68k
1.32      pazsan    191:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    192:                if test "$host_os" = "nextstep3"
                    193:                then
1.87    ! pazsan    194:                        AC_LIBOBJ(termios)
1.32      pazsan    195:                fi
1.26      pazsan    196:                ;;
1.1       anton     197:        mips*)
1.34      anton     198:                machine=mips
1.7       anton     199:                #link text and data segment into the same 256M region!
1.49      anton     200:                AC_MSG_CHECKING([whether the linker accepts -T])
                    201:                OLDLDFLAGS=$LDFLAGS
                    202:                LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000"
                    203:                AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no)
                    204:                test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS
                    205:                AC_MSG_RESULT($ac_link_mips_t)
1.83      anton     206:                fixme #dynamically generated code should be in the same 256MB
                    207:                # region as the text segment; no indirect threading necessary
1.49      anton     208:                test $ac_link_mips_t = yes||(echo cannot link text and data into same 256M region, using indirect threading; AC_DEFINE(INDIRECT_THREADED))
1.37      anton     209:                AC_MSG_CHECKING([whether the linker accepts -D])
                    210:                OLDLDFLAGS=$LDFLAGS
1.49      anton     211:                LDFLAGS="$LDFLAGS -Xlinker -D -Xlinker 10400000"
1.37      anton     212:                AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no)
1.49      anton     213:                test $ac_link_mips_d = yes||LDFLAGS=$OLDLDFLAGS
1.37      anton     214:                AC_MSG_RESULT($ac_link_mips_d)
1.1       anton     215:                ;;
1.9       pazsan    216:        alpha*)
1.34      anton     217:                machine=alpha
1.58      anton     218:                #full IEEE FP support for more uniformity across platforms:
                    219:                CFLAGS="$CFLAGS -mieee"
1.9       pazsan    220:                ;;
1.69      anton     221:        power*|rs6000)
1.34      anton     222:                machine=power
1.46      anton     223:                $srcdir/mkinstalldirs arch/power
1.87    ! pazsan    224:                AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
1.31      anton     225:                ;;
1.1       anton     226:        *)
1.20      anton     227:                echo "Using a generic machine description."
1.1       anton     228:                echo "I'll assume that C floats and doubles are represented by IEEE single and"
                    229:                echo "double numbers. If this is not so, SF@ etc. will not work correctly."
1.16      anton     230:                echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!"
1.34      anton     231:                machine=generic
1.1       anton     232: esac
1.10      anton     233: AC_SUBST(host)
1.15      pazsan    234: AC_SUBST(ENGINE_FLAGS)
1.1       anton     235: 
1.66      anton     236: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61      anton     237: AC_SUBST(asm_fs)
                    238: 
1.66      anton     239: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61      anton     240: AC_SUBST(disasm_fs)
                    241: 
1.39      pazsan    242: case "$host_os" in
                    243:        *win32)
                    244:                EXE=".exe"
                    245:                ;;
                    246:        *)
                    247:                EXE=""
                    248:                ;;
                    249: esac
                    250: AC_SUBST(EXE)
                    251: 
1.1       anton     252: dnl Now a little support for DOS/DJGCC
1.30      pazsan    253: AC_SUBST(GFORTH_EXE)
                    254: GFORTH_EXE=""
1.48      anton     255: AC_SUBST(GFORTHFAST_EXE)
                    256: GFORTHFAST_EXE=""
1.83      anton     257: AC_SUBST(GFORTHITC_EXE)
                    258: GFORTHITC_EXE=""
1.30      pazsan    259: AC_SUBST(GFORTHDITC_EXE)
                    260: GFORTHDITC_EXE=""
1.1       anton     261: 
1.24      anton     262: PATHSEP=":"
                    263: AC_SUBST(PATHSEP)
                    264: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP')
1.27      anton     265: 
                    266: AC_SUBST(FORTHSIZES)
1.24      anton     267: 
1.79      pazsan    268: if test "$PEEPHOLE" = "yes"
                    269: then
                    270:    PEEPHOLEFLAG="true"
                    271:    AC_DEFINE(HAS_PEEPHOLE)
                    272: else
                    273:    PEEPHOLEFLAG="false"
                    274: fi
                    275: AC_SUBST(PEEPHOLEFLAG)
                    276: 
1.1       anton     277: dnl copy commands for systems that don't have links
1.29      pazsan    278: AC_SUBST(LINK_KERNL)
                    279: LINK_KERNL=""
1.1       anton     280: 
                    281: #if test $host_os=dos
                    282: #then
                    283: #  echo Configuring for DOS!!!
                    284: #  MAKE_EXE="coff2exe gforth"
1.29      pazsan    285: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1       anton     286: #fi
                    287: 
                    288: dnl the following macro produces a warning with autoconf-2.1
                    289: AC_C_BIGENDIAN
1.23      pazsan    290: AC_SUBST(KERNEL)
1.1       anton     291: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
                    292: if test $ac_cv_c_bigendian = yes; then
                    293:   bytesex=b
1.23      pazsan    294:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1       anton     295: else
                    296:   bytesex=l
1.23      pazsan    297:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1       anton     298: fi
                    299: 
                    300: dnl Checks for programs.
                    301: AC_PROG_LN_S
1.34      anton     302: dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE
1.1       anton     303: 
                    304: dnl Checks for library functions
1.2       anton     305: dnl This check is just for making later checks link with libm.
                    306: dnl using sin here is no good idea since it is built-into gcc and typechecked
                    307: AC_CHECK_LIB(m,asin)
1.31      anton     308: AC_CHECK_LIB(dl,dlopen)
1.32      pazsan    309: if test "$host_os" != "nextstep3"
                    310: then
                    311:        AC_FUNC_MEMCMP
                    312: fi
1.25      pazsan    313: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.71      anton     314: AC_CHECK_FUNCS(dlopen sys_siglist getrusage)
1.19      anton     315: AC_DECL_SYS_SIGLIST
1.87    ! pazsan    316: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt.$ac_objext getopt1))
1.11      anton     317: AC_CHECK_FUNCS(rint expm1 log1p)
1.1       anton     318: AC_REPLACE_FUNCS(ecvt)
                    319: dnl No check for select, because our replacement is no good under
                    320: dnl anything but DOS
1.62      anton     321: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63      anton     322: AC_FUNC_FNMATCH
1.87    ! pazsan    323: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28      anton     324: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34      anton     325: AM_PATH_LISPDIR
1.1       anton     326: 
1.23      pazsan    327: kernel_fi=kernl${wordsize}${bytesex}.fi
                    328: AC_SUBST(kernel_fi)
1.50      jwilke    329: 
1.76      anton     330: #this breaks bindists
                    331: #dnl replace srource directory by absolute value
                    332: #if test $srcdir = "."; then srcdir=`pwd` 
                    333: #fi
1.8       anton     334: 
1.34      anton     335: AC_SUBST(machine)
                    336: dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed
1.31      anton     337: AC_OUTPUT([
                    338: Makefile
1.45      pazsan    339: Makedist
1.43      anton     340: gforthmi
1.80      anton     341: vmgen
1.79      pazsan    342: machpc.fs
1.35      anton     343: engine/Makefile
1.44      anton     344: doc/version.texi ],
                    345: echo timestamp > stamp-h
1.43      anton     346: chmod +x gforthmi
1.80      anton     347: chmod +x vmgen
1.44      anton     348: test -d kernel||mkdir kernel)
                    349: 

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