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- dnl Meschach autoconf script
- dnl Copyright (C) Brook Milligan and David Stewart, 1993, 2002
- dnl $Id: configure.in,v 1.3 1994/03/08 05:41:32 des Exp $
- dnl
- dnl I want to use this to see if the compiler can be made ANSI C compatible
- dnl AC_PROG_CC_STDC
- dnl Brook Milligan's prototype check
- dnl Check if $(CC) supports prototypes
- define(LOCAL_HAVE_PROTOTYPES,
- [AC_TRY_COMPILE([function prototypes], ,
- [extern int test (int i, double x);],
- AC_DEFINE(HAVE_PROTOTYPES))])dnl
- dnl
- dnl Brook Milligan's compiler check
- dnl Check for the sun ansi c compiler, acc
- define(LOCAL_PROG_ACC,
- [AC_BEFORE([$0], [AC_PROG_CPP])AC_PROVIDE([$0])dnl
- AC_PROGRAM_CHECK(CC, acc, acc, "")])dnl
- dnl David Stewart's modified compiler check
- define(LOCAL_PROG_CC,
- [AC_BEFORE([$0], [AC_PROG_CPP])AC_PROVIDE([$0])dnl
- AC_PROGRAM_CHECK(CC, acc, acc, cc)])dnl
- dnl
- dnl
- dnl
- dnl ----------------------------------------------------------------------
- dnl Start of configure.in proper
- dnl ----------------------------------------------------------------------
- AC_INIT(err.c)
- AC_CONFIG_HEADER(machine.h)
- PROGS=""
- AC_SUBST(PROGS)dnl
- LOCAL_PROG_ACC
- AC_PROGRAM_CHECK(CC, cc, cc, gcc)
- AC_PROG_CC
- AC_PROG_CPP
- AC_PROG_CC_STDC
- AC_AIX
- AC_MINIX
- AC_ISC_POSIX
- dnl
- dnl Brook Milligan's prototype check
- dnl Check if $(CC) supports prototypes in function declarations and structures
- define(LOCAL_HAVE_PROTOTYPES,
- [AC_TRY_COMPILE([function prototypes], ,
- [extern int test (int i, double x);],
- AC_DEFINE(HAVE_PROTOTYPES))
- AC_TRY_COMPILE([function prototypes in structures], ,
- [struct s1 {int (*f) (int a);};
- struct s2 {int (*f) (double a);};],
- AC_DEFINE(HAVE_PROTOTYPES_IN_STRUCT))])dnl
- dnl
- AC_PROG_RANLIB
- AC_HAVE_HEADERS(memory.h)
- AC_STDC_HEADERS
- AC_HEADER_CHECK(complex.h, AC_DEFINE(HAVE_COMPLEX_H),)
- AC_HEADER_CHECK(malloc.h, AC_DEFINE(HAVE_MALLOC_H),)
- AC_HEADER_CHECK(varargs.h, AC_DEFINE(VARARGS),)
- AC_DEFINE(NOT_SEGMENTED)
- AC_SIZE_T
- AC_CONST
- AC_WORDS_BIGENDIAN
- AC_ARG_WITH(complex, AC_DEFINE(COMPLEX))
- AC_ARG_WITH(sparse, AC_DEFINE(SPARSE))
- AC_ARG_WITH(all, AC_DEFINE(COMPLEX))
- AC_ARG_WITH(all, AC_DEFINE(SPARSE))
- AC_ARG_WITH(unroll, AC_DEFINE(VUNROLL))
- AC_ARG_WITH(munroll, AC_DEFINE(MUNROLL))
- AC_ARG_WITH(segmem, AC_DEFINE(SEGMENTED))
- AC_ARG_WITH(float, AC_DEFINE(REAL_FLT))
- AC_ARG_WITH(double, AC_DEFINE(REAL_DBL))
- LIBS="$LIBS -lm"
- AC_TRY_COMPILE([u_int],[#include <stdio.h>
- #ifdef __STDC__
- #include <stdlib.h>
- #endif],[u_int i; i = 1;],AC_DEFINE(U_INT_DEF))
- echo 'computing machine epsilon(s)'
- echo $CC -o macheps dmacheps.c
- $CC -o macheps dmacheps.c
- AC_DEFINE_UNQUOTED(D_MACHEPS,`macheps`)
- echo $CC -o macheps fmacheps.c
- $CC -o macheps fmacheps.c
- AC_DEFINE_UNQUOTED(F_MACHEPS,`macheps`)
- echo computing M_MAX_INT
- echo $CC -o maxint maxint.c
- $CC -o maxint maxint.c
- AC_DEFINE_UNQUOTED(M_MAX_INT,`maxint`)
- echo checking char '\\0' vs. float zeros
- AC_PROGRAM_EGREP(yes,[main() {
- char *cp = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
- double *dp;
- dp = (double *)cp;
- if ( *dp == 0.0 ) printf("yes\n"); }
- ],AC_DEFINE(CHAR0ISDBL0))
- AC_HAVE_FUNCS(bcopy bzero)
- LOCAL_HAVE_PROTOTYPES
- AC_CONFIG_FILES([makefile make.mex])
- AC_OUTPUT
- echo "Extensions to basic version: use configure --with-opt1 --with-opt2"
- echo " Option:"
- echo " --with-complex incorporate complex functions"
- echo " --with-sparse incorporate sparse matrix functions"
- echo " --with-all both of the above"
- echo " --with-unroll unroll low level loops on vectors"
- echo " --with-munroll unroll low level loops on matrices"
- echo " --with-float single precision"
- echo " --with-double double precision (default)"
- echo "Re-run configure with these options if you want them"
- # configure.in copyright (C) Brook Milligan and David Stewart, 1993, 2002
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