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3207741df0
This patch refactors these macros to also checks for the required given versions of bison and re2c. - PHP_PROG_RE2C and PHP_PROG_BISON take optional args - minmimum version required, and bison also excluded versions. - Instead of caching values this uses manual checking and messaging outputs. - It looks like the minimum version of RE2C 0.13.4 is working ok so far. The genfiles script improvements: - Add make override in genfiles - Move checkings from makedist to genfiles - Refactored output messages - Various minor enhancements
116 lines
3.4 KiB
Plaintext
116 lines
3.4 KiB
Plaintext
dnl This file contains local autoconf functions.
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dnl x87 floating point internal precision control checks
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dnl See: http://wiki.php.net/rfc/rounding
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AC_DEFUN([ZEND_CHECK_FLOAT_PRECISION],[
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AC_MSG_CHECKING([for usable _FPU_SETCW])
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <fpu_control.h>
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]],[[
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fpu_control_t fpu_oldcw, fpu_cw;
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volatile double result;
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double a = 2877.0;
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volatile double b = 1000000.0;
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_FPU_GETCW(fpu_oldcw);
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fpu_cw = (fpu_oldcw & ~_FPU_EXTENDED & ~_FPU_SINGLE) | _FPU_DOUBLE;
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_FPU_SETCW(fpu_cw);
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result = a / b;
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_FPU_SETCW(fpu_oldcw);
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]])],[ac_cfp_have__fpu_setcw=yes],[ac_cfp_have__fpu_setcw=no])
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if test "$ac_cfp_have__fpu_setcw" = "yes" ; then
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AC_DEFINE(HAVE__FPU_SETCW, 1, [whether _FPU_SETCW is present and usable])
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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AC_MSG_CHECKING([for usable fpsetprec])
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <machine/ieeefp.h>
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]],[[
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fp_prec_t fpu_oldprec;
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volatile double result;
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double a = 2877.0;
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volatile double b = 1000000.0;
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fpu_oldprec = fpgetprec();
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fpsetprec(FP_PD);
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result = a / b;
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fpsetprec(fpu_oldprec);
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]])], [ac_cfp_have_fpsetprec=yes], [ac_cfp_have_fpsetprec=no])
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if test "$ac_cfp_have_fpsetprec" = "yes" ; then
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AC_DEFINE(HAVE_FPSETPREC, 1, [whether fpsetprec is present and usable])
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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AC_MSG_CHECKING([for usable _controlfp])
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <float.h>
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]],[[
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unsigned int fpu_oldcw;
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volatile double result;
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double a = 2877.0;
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volatile double b = 1000000.0;
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fpu_oldcw = _controlfp(0, 0);
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_controlfp(_PC_53, _MCW_PC);
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result = a / b;
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_controlfp(fpu_oldcw, _MCW_PC);
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]])], [ac_cfp_have__controlfp=yes], [ac_cfp_have__controlfp=no])
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if test "$ac_cfp_have__controlfp" = "yes" ; then
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AC_DEFINE(HAVE__CONTROLFP, 1, [whether _controlfp is present usable])
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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AC_MSG_CHECKING([for usable _controlfp_s])
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <float.h>
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]],[[
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unsigned int fpu_oldcw, fpu_cw;
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volatile double result;
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double a = 2877.0;
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volatile double b = 1000000.0;
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_controlfp_s(&fpu_cw, 0, 0);
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fpu_oldcw = fpu_cw;
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_controlfp_s(&fpu_cw, _PC_53, _MCW_PC);
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result = a / b;
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_controlfp_s(&fpu_cw, fpu_oldcw, _MCW_PC);
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]])], [ac_cfp_have__controlfp_s=yes], [ac_cfp_have__controlfp_s=no])
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if test "$ac_cfp_have__controlfp_s" = "yes" ; then
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AC_DEFINE(HAVE__CONTROLFP_S, 1, [whether _controlfp_s is present and usable])
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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AC_MSG_CHECKING([whether FPU control word can be manipulated by inline assembler])
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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/* nothing */
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]],[[
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unsigned int oldcw, cw;
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volatile double result;
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double a = 2877.0;
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volatile double b = 1000000.0;
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__asm__ __volatile__ ("fnstcw %0" : "=m" (*&oldcw));
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cw = (oldcw & ~0x0 & ~0x300) | 0x200;
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__asm__ __volatile__ ("fldcw %0" : : "m" (*&cw));
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result = a / b;
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__asm__ __volatile__ ("fldcw %0" : : "m" (*&oldcw));
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]])], [ac_cfp_have_fpu_inline_asm_x86=yes], [ac_cfp_have_fpu_inline_asm_x86=no])
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if test "$ac_cfp_have_fpu_inline_asm_x86" = "yes" ; then
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AC_DEFINE(HAVE_FPU_INLINE_ASM_X86, 1, [whether FPU control word can be manipulated by inline assembler])
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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])
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