File:  [gforth] / gforth / configure.in
Revision 1.11: download - view: text, annotated - select for diffs
Fri Apr 14 18:56:53 1995 UTC (24 years, 7 months ago) by anton
Branches: MAIN
CVS tags: HEAD
Put pow10 in a separate file (it is used by ecvt and engine) and
adjusted configure accordingly.
script? is now also set during processing --evaluate arguments. This
avoids getting a newline from "gforth -e bye".

    1: dnl Process this file with autoconf to produce a configure script.
    2: AC_INIT(engine.c)
    3: 
    4: AC_ARG_ENABLE(force-reg,
    5: [  --enable-force-reg	  Use explicit register declarations if they appear in
    6: 			  the machine.h file. This can cause a good speedup,
    7: 			  but also incorrect code with some gcc versions on
    8: 			  some processors (default disabled).],
    9: 
   10: AC_DEFINE(FORCE_REG))
   11: dnl this is not quite according to the autoconf manual, it causes a replacement
   12: AC_ARG_ENABLE(direct-threaded,
   13: [  --enable-direct-threaded	Force direct threading. This may not work on
   14: 				some machines and may cause slowdown on others.
   15: 				(default processor-dependent)],
   16: AC_DEFINE(DIRECT_THREADED))
   17: AC_ARG_ENABLE(indirect-threaded,
   18: [  --enable-indirect-threaded	Force indirect threading. This can cause a
   19: 				slowdown on some machines.
   20: 				(default processor-dependent)],
   21: AC_DEFINE(INDIRECT_THREADED))
   22: 
   23: AC_ARG_WITH(debug,
   24: [  --with-debug     specifies option -g to compile with debug info (default)
   25:    --without-debug  omits the -g switch and creates smaller images on
   26:                     machines where "strip" has problems with gcc style
   27:                     debugging informations.],
   28: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
   29: 
   30: 
   31: AC_SUBST(GCCLDFLAGS)
   32: AC_SUBST(DEBUGFLAG)
   33: 
   34: dnl the following macro produces a warning with autoconf-2.1
   35: AC_CHECK_SIZEOF(char *)
   36: case "$ac_cv_sizeof_char_p" in
   37:   2)
   38:     wordsize=16
   39:     ;;
   40:   4)
   41:     wordsize=32
   42:     ;;
   43:   8)
   44:     wordsize=64
   45: dnl    AC_CHECK_SIZEOF(long long)
   46: dnl    if [ $ac_cv_sizeof_long_long != 16 ]
   47: dnl    then
   48: dnl       try the whole thing with -mlonlong128
   49: dnl complain about C compiler and OS vendor
   50: dnl    fi
   51:     ;;
   52: esac
   53: 
   54: #terminology is a bit unusual here: The host is the system on which
   55: #gforth will run; the system on which configure will run is the `build'
   56: AC_CANONICAL_HOST
   57: case "$host_cpu" in
   58: 	hppa*)
   59: 		mach_h=hppa
   60: 		LIBOBJS="cache.o"
   61: 		LDFLAGS="-Xlinker -N"
   62: 		LIBS="-L/lib/pa1.1/"
   63: 		;;
   64: 	sparc*)
   65: 		mach_h=sparc
   66: 		;;
   67: 	i386|i486|i586)
   68: 		mach_h=386
   69: 		CFLAGS="-fforce-mem -fforce-addr -fomit-frame-pointer"
   70: 		#!! direct/indirect threading switch
   71: 		#!! -m486 flag
   72: 		;;
   73: 	m68*)
   74: 		mach_h=m68k
   75: 		;;
   76: 	mips*)
   77: 		mach_h=mips
   78: 		#link text and data segment into the same 256M region!
   79: 		GCCLDFLAGS="-Xlinker -T -Xlinker 10000000 -Xlinker -D -Xlinker 10400000"
   80: 		;;
   81: 	alpha*)
   82: 		mach_h=alpha
   83: 		echo Very Preliminary Support for Alpha!!!
   84: 		;;
   85: 	*)
   86: 		echo "No direct threading support for $host_cpu, using indirect threading."
   87: 		echo "Using a generic 32-bit machine description. It will only work if char * AND"
   88: 		echo "long values have 32 bits."
   89: 		echo "I'll assume that C floats and doubles are represented by IEEE single and"
   90: 		echo "double numbers. If this is not so, SF@ etc. will not work correctly."
   91: 		mach_h=32bit
   92: esac
   93: AC_SUBST(host)
   94: 
   95: dnl Now a little support for DOS/DJGCC
   96: AC_SUBST(MAKE_EXE)
   97: MAKE_EXE=""
   98: 
   99: dnl copy commands for systems that don't have links
  100: AC_SUBST(LINK_KERNL16L)
  101: LINK_KERNL16L=""
  102: AC_SUBST(LINK_KERNL16B)
  103: LINK_KERNL16B=""
  104: AC_SUBST(LINK_KERNL32L)
  105: LINK_KERNL32L=""
  106: AC_SUBST(LINK_KERNL32B)
  107: LINK_KERNL32B=""
  108: AC_SUBST(LINK_KERNL64L)
  109: LINK_KERNL64L=""
  110: AC_SUBST(LINK_KERNL64B)
  111: LINK_KERNL64B=""
  112: 
  113: #if test $host_os=dos
  114: #then
  115: #  echo Configuring for DOS!!!
  116: #  MAKE_EXE="coff2exe gforth"
  117: #  LINK_KERNL32L='$(CP) kernl32l.fi gforth.fi'
  118: #fi
  119: 
  120: dnl the following macro produces a warning with autoconf-2.1
  121: AC_C_BIGENDIAN
  122: AC_SUBST(KERNAL)
  123: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
  124: if test $ac_cv_c_bigendian = yes; then
  125:   bytesex=b
  126:   KERNAL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
  127: else
  128:   bytesex=l
  129:   KERNAL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
  130: fi
  131: 
  132: dnl Checks for programs.
  133: AC_PROG_LN_S
  134: AC_PROG_INSTALL
  135: 
  136: dnl Checks for library functions
  137: dnl This check is just for making later checks link with libm.
  138: dnl using sin here is no good idea since it is built-into gcc and typechecked
  139: AC_CHECK_LIB(m,asin)
  140: AC_FUNC_MEMCMP
  141: AC_REPLACE_FUNCS(memmove strtoul pow10)
  142: AC_CHECK_FUNC(getopt_long,getopt_long="",getopt_long="getopt.o getopt1.o")
  143: AC_SUBST(getopt_long)
  144: AC_CHECK_FUNCS(rint expm1 log1p)
  145: AC_REPLACE_FUNCS(ecvt)
  146: dnl No check for select, because our replacement is no good under
  147: dnl anything but DOS
  148: 
  149: gforth_fi=kernl${wordsize}${bytesex}.fi
  150: AC_SUBST(gforth_fi)
  151: 
  152: AC_LINK_FILES(${mach_h}.h $gforth_fi,machine.h gforth.fi)
  153: AC_OUTPUT(Makefile)
  154: 

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