File:  [gforth] / gforth / configure.in
Revision 1.18: download - view: text, annotated - select for diffs
Tue Dec 26 17:35:35 1995 UTC (23 years, 10 months ago) by anton
Branches: MAIN
CVS tags: HEAD
added config.h support (acconfig.h, changes in Makefile.in)
check for sys_siglist declaration
fixed bug in engine.c:cstr()
prims2x.fs now outputs synclines only in C code

    1: dnl Process this file with autoconf to produce a configure script.
    2: AC_INIT(engine.c)
    3: AC_CONFIG_HEADER(config.h)
    4: 
    5: AC_ARG_ENABLE(force-reg,
    6: [  --enable-force-reg	  Use explicit register declarations if they appear in
    7: 			  the machine.h file. This can cause a good speedup,
    8: 			  but also incorrect code with some gcc versions on
    9: 			  some processors (default disabled).],
   10: 
   11: AC_DEFINE(FORCE_REG))
   12: dnl this is not quite according to the autoconf manual, it causes a replacement
   13: AC_ARG_ENABLE(direct-threaded,
   14: [  --enable-direct-threaded	Force direct threading. This may not work on
   15: 				some machines and may cause slowdown on others.
   16: 				(default processor-dependent)],
   17: AC_DEFINE(DIRECT_THREADED))
   18: AC_ARG_ENABLE(indirect-threaded,
   19: [  --enable-indirect-threaded	Force indirect threading. This can cause a
   20: 				slowdown on some machines.
   21: 				(default processor-dependent)],
   22: AC_DEFINE(INDIRECT_THREADED))
   23: 
   24: AC_ARG_WITH(debug,
   25: [  --with-debug     specifies option -g to compile with debug info (default)
   26:    --without-debug  omits the -g switch and creates smaller images on
   27:                     machines where "strip" has problems with gcc style
   28:                     debugging informations.],
   29: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
   30: 
   31: CFLAGS=$CFLAGS
   32: 
   33: AC_PROG_CC
   34: 
   35: if test "$GCC" = "yes"
   36: then
   37:    echo "Fine, gcc is available"
   38: else
   39:    cat <<'EOF'
   40: Gforth requires GCC-2.0 or higher (it uses GNU C extensions).
   41: It does not work with other C compilers. Please install the GNU C compiler,
   42: and try again (or search for a binary distribution for your platform).
   43: EOF
   44:    exit 1
   45: fi
   46: 
   47: AC_SUBST(CC)
   48: AC_SUBST(GCCLDFLAGS)
   49: AC_SUBST(DEBUGFLAG)
   50: 
   51: dnl the following macro produces a warning with autoconf-2.1
   52: AC_CHECK_SIZEOF(char *)
   53: case "$ac_cv_sizeof_char_p" in
   54:   2)
   55:     wordsize=16
   56:     ;;
   57:   4)
   58:     wordsize=32
   59:     ;;
   60:   8)
   61:     wordsize=64
   62: dnl    AC_CHECK_SIZEOF(long long)
   63: dnl    if [ $ac_cv_sizeof_long_long != 16 ]
   64: dnl    then
   65: dnl       try the whole thing with -mlonglong128
   66: dnl complain about C compiler and OS vendor
   67: dnl    fi
   68:     ;;
   69: esac
   70: 
   71: #terminology is a bit unusual here: The host is the system on which
   72: #gforth will run; the system on which configure will run is the `build'
   73: AC_CANONICAL_HOST
   74: case "$host_cpu" in
   75: 	hppa*)
   76: 		mach_h=hppa
   77: 		LIBOBJS="cache.o"
   78: 		LDFLAGS="-Xlinker -N"
   79: 		LIBS="-L/lib/pa1.1/"
   80: 		;;
   81: 	sparc*)
   82: 		mach_h=sparc
   83: 		;;
   84: 	i386|i486|i586)
   85: 		mach_h=386
   86: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
   87: 		#!! direct/indirect threading switch
   88: 		#!! -m486 flag
   89: 		;;
   90: 	mips*)
   91: 		mach_h=mips
   92: 		#link text and data segment into the same 256M region!
   93: 		GCCLDFLAGS="-Xlinker -T -Xlinker 10000000 -Xlinker -D -Xlinker 10400000"
   94: 		;;
   95: 	alpha*)
   96: 		mach_h=alpha
   97: 		echo Very Preliminary Support for Alpha!!!
   98: 		;;
   99: 	*)
  100: 		echo "No direct threading support for $host_cpu, using indirect threading."
  101: 		echo "Using a generic machine description. It will only work if char * AND"
  102: 		echo "long values have the same size and long long is twice as long."
  103: 		echo "I'll assume that C floats and doubles are represented by IEEE single and"
  104: 		echo "double numbers. If this is not so, SF@ etc. will not work correctly."
  105: 		echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!"
  106: 		mach_h=32bit
  107: esac
  108: AC_SUBST(host)
  109: AC_SUBST(ENGINE_FLAGS)
  110: 
  111: dnl Now a little support for DOS/DJGCC
  112: AC_SUBST(MAKE_EXE)
  113: MAKE_EXE=""
  114: 
  115: dnl copy commands for systems that don't have links
  116: AC_SUBST(LINK_KERNL16L)
  117: LINK_KERNL16L=""
  118: AC_SUBST(LINK_KERNL16B)
  119: LINK_KERNL16B=""
  120: AC_SUBST(LINK_KERNL32L)
  121: LINK_KERNL32L=""
  122: AC_SUBST(LINK_KERNL32B)
  123: LINK_KERNL32B=""
  124: AC_SUBST(LINK_KERNL64L)
  125: LINK_KERNL64L=""
  126: AC_SUBST(LINK_KERNL64B)
  127: LINK_KERNL64B=""
  128: 
  129: #if test $host_os=dos
  130: #then
  131: #  echo Configuring for DOS!!!
  132: #  MAKE_EXE="coff2exe gforth"
  133: #  LINK_KERNL32L='$(CP) kernl32l.fi kernal.fi'
  134: #fi
  135: 
  136: dnl the following macro produces a warning with autoconf-2.1
  137: AC_C_BIGENDIAN
  138: AC_SUBST(KERNAL)
  139: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
  140: if test $ac_cv_c_bigendian = yes; then
  141:   bytesex=b
  142:   KERNAL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
  143: else
  144:   bytesex=l
  145:   KERNAL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
  146: fi
  147: 
  148: dnl Checks for programs.
  149: AC_PROG_LN_S
  150: AC_PROG_INSTALL
  151: 
  152: dnl Checks for library functions
  153: dnl This check is just for making later checks link with libm.
  154: dnl using sin here is no good idea since it is built-into gcc and typechecked
  155: AC_CHECK_LIB(m,asin)
  156: AC_FUNC_MEMCMP
  157: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal)
  158: AC_CHECK_FUNCS(sys_siglist)
  159: AC_MSG_CHECKING(whether sys_siglist may be declared)
  160: AC_CACHE_VAL(gf_cv_declare_sys_siglist,
  161: AC_TRY_COMPILE(#include <stdio.h>
  162: #include <signal.h>
  163: ,extern void sys_siglist;,gf_cv_declare_sys_siglist='yes',gf_cv_declare_sys_siglist='no'))
  164: if test $gf_cv_declare_sys_siglist = yes
  165: then
  166:   AC_DEFINE(DECLARE_SYS_SIGLIST)
  167: fi
  168: AC_MSG_RESULT($gf_cv_declare_sys_siglist)
  169: AC_CHECK_FUNC(getopt_long,getopt_long="",getopt_long="getopt.o getopt1.o")
  170: AC_SUBST(getopt_long)
  171: AC_CHECK_FUNCS(rint expm1 log1p)
  172: AC_REPLACE_FUNCS(ecvt)
  173: dnl No check for select, because our replacement is no good under
  174: dnl anything but DOS
  175: 
  176: kernal_fi=kernl${wordsize}${bytesex}.fi
  177: AC_SUBST(kernal_fi)
  178: 
  179: AC_LINK_FILES(${mach_h}.h $kernal_fi,machine.h kernal.fi)
  180: AC_OUTPUT(Makefile,echo timestamp > stamp-h)
  181: 

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