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|
dnl $Id: acinclude.m4 304193 2010-10-07 21:44:41Z felipe $
dnl
dnl This file contains local autoconf functions.
AC_DEFUN([LIBZEND_BISON_CHECK],[
# we only support certain bison versions
bison_version_list="1.28 1.35 1.75 1.875 2.0 2.1 2.2 2.3 2.4 2.4.1 2.4.2 2.4.3"
# for standalone build of Zend Engine
test -z "$SED" && SED=sed
bison_version=none
if test "$YACC"; then
AC_CACHE_CHECK([for bison version], php_cv_bison_version, [
bison_version_vars=`bison --version 2> /dev/null | grep 'GNU Bison' | cut -d ' ' -f 4 | $SED -e 's/\./ /' | tr -d a-z`
php_cv_bison_version=invalid
if test -n "$bison_version_vars"; then
set $bison_version_vars
bison_version="${1}.${2}"
for bison_check_version in $bison_version_list; do
if test "$bison_version" = "$bison_check_version"; then
php_cv_bison_version="$bison_check_version (ok)"
break
fi
done
fi
])
fi
case $php_cv_bison_version in
""|invalid[)]
bison_msg="bison versions supported for regeneration of the Zend/PHP parsers: $bison_version_list (found: $bison_version)."
AC_MSG_WARN([$bison_msg])
YACC="exit 0;"
;;
esac
])
AC_DEFUN([ZEND_FP_EXCEPT],[
AC_CACHE_CHECK(whether fp_except is defined, ac_cv_type_fp_except,[
AC_TRY_COMPILE([
#include <floatingpoint.h>
],[
fp_except x = (fp_except) 0;
],[
ac_cv_type_fp_except=yes
],[
ac_cv_type_fp_except=no
],[
ac_cv_type_fp_except=no
])])
if test "$ac_cv_type_fp_except" = "yes"; then
AC_DEFINE(HAVE_FP_EXCEPT, 1, [whether floatingpoint.h defines fp_except])
fi
])
dnl
dnl Check for broken sprintf()
dnl
AC_DEFUN([AC_ZEND_BROKEN_SPRINTF],[
AC_CACHE_CHECK(whether sprintf is broken, ac_cv_broken_sprintf,[
AC_TRY_RUN([main() {char buf[20];exit(sprintf(buf,"testing 123")!=11); }],[
ac_cv_broken_sprintf=no
],[
ac_cv_broken_sprintf=yes
],[
ac_cv_broken_sprintf=no
])
])
if test "$ac_cv_broken_sprintf" = "yes"; then
ac_result=1
else
ac_result=0
fi
AC_DEFINE_UNQUOTED(ZEND_BROKEN_SPRINTF, $ac_result, [Whether sprintf is broken])
])
dnl
dnl AC_ZEND_C_BIGENDIAN
dnl Replacement macro for AC_C_BIGENDIAN
dnl
AC_DEFUN([AC_ZEND_C_BIGENDIAN],
[AC_CACHE_CHECK([whether byte ordering is bigendian], ac_cv_c_bigendian_php,
[
ac_cv_c_bigendian_php=unknown
AC_TRY_RUN(
[
int main(void)
{
short one = 1;
char *cp = (char *)&one;
if (*cp == 0) {
return(0);
} else {
return(1);
}
}
], [ac_cv_c_bigendian_php=yes], [ac_cv_c_bigendian_php=no], [ac_cv_c_bigendian_php=unknown])
])
if test $ac_cv_c_bigendian_php = yes; then
AC_DEFINE(WORDS_BIGENDIAN, [], [Define if processor uses big-endian word])
fi
])
AC_DEFUN([AM_SET_LIBTOOL_VARIABLE],[
LIBTOOL='$(SHELL) $(top_builddir)/libtool $1'
])
dnl x87 floating point internal precision control checks
dnl See: http://wiki.php.net/rfc/rounding
AC_DEFUN([ZEND_CHECK_FLOAT_PRECISION],[
AC_MSG_CHECKING([for usable _FPU_SETCW])
AC_TRY_LINK([
#include <fpu_control.h>
],[
fpu_control_t fpu_oldcw, fpu_cw;
volatile double result;
double a = 2877.0;
volatile double b = 1000000.0;
_FPU_GETCW(fpu_oldcw);
fpu_cw = (fpu_oldcw & ~_FPU_EXTENDED & ~_FPU_SINGLE) | _FPU_DOUBLE;
_FPU_SETCW(fpu_cw);
result = a / b;
_FPU_SETCW(fpu_oldcw);
], [ac_cfp_have__fpu_setcw=yes], [ac_cfp_have__fpu_setcw=no])
if test "$ac_cfp_have__fpu_setcw" = "yes" ; then
AC_DEFINE(HAVE__FPU_SETCW, 1, [whether _FPU_SETCW is present and usable])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING([for usable fpsetprec])
AC_TRY_LINK([
#include <machine/ieeefp.h>
],[
fp_prec_t fpu_oldprec;
volatile double result;
double a = 2877.0;
volatile double b = 1000000.0;
fpu_oldprec = fpgetprec();
fpsetprec(FP_PD);
result = a / b;
fpsetprec(fpu_oldprec);
], [ac_cfp_have_fpsetprec=yes], [ac_cfp_have_fpsetprec=no])
if test "$ac_cfp_have_fpsetprec" = "yes" ; then
AC_DEFINE(HAVE_FPSETPREC, 1, [whether fpsetprec is present and usable])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING([for usable _controlfp])
AC_TRY_LINK([
#include <float.h>
],[
unsigned int fpu_oldcw;
volatile double result;
double a = 2877.0;
volatile double b = 1000000.0;
fpu_oldcw = _controlfp(0, 0);
_controlfp(_PC_53, _MCW_PC);
result = a / b;
_controlfp(fpu_oldcw, _MCW_PC);
], [ac_cfp_have__controlfp=yes], [ac_cfp_have__controlfp=no])
if test "$ac_cfp_have__controlfp" = "yes" ; then
AC_DEFINE(HAVE__CONTROLFP, 1, [whether _controlfp is present usable])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING([for usable _controlfp_s])
AC_TRY_LINK([
#include <float.h>
],[
unsigned int fpu_oldcw, fpu_cw;
volatile double result;
double a = 2877.0;
volatile double b = 1000000.0;
_controlfp_s(&fpu_cw, 0, 0);
fpu_oldcw = fpu_cw;
_controlfp_s(&fpu_cw, _PC_53, _MCW_PC);
result = a / b;
_controlfp_s(&fpu_cw, fpu_oldcw, _MCW_PC);
], [ac_cfp_have__controlfp_s=yes], [ac_cfp_have__controlfp_s=no])
if test "$ac_cfp_have__controlfp_s" = "yes" ; then
AC_DEFINE(HAVE__CONTROLFP_S, 1, [whether _controlfp_s is present and usable])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
AC_MSG_CHECKING([whether FPU control word can be manipulated by inline assembler])
AC_TRY_LINK([
/* nothing */
],[
unsigned int oldcw, cw;
volatile double result;
double a = 2877.0;
volatile double b = 1000000.0;
__asm__ __volatile__ ("fnstcw %0" : "=m" (*&oldcw));
cw = (oldcw & ~0x0 & ~0x300) | 0x200;
__asm__ __volatile__ ("fldcw %0" : : "m" (*&cw));
result = a / b;
__asm__ __volatile__ ("fldcw %0" : : "m" (*&oldcw));
], [ac_cfp_have_fpu_inline_asm_x86=yes], [ac_cfp_have_fpu_inline_asm_x86=no])
if test "$ac_cfp_have_fpu_inline_asm_x86" = "yes" ; then
AC_DEFINE(HAVE_FPU_INLINE_ASM_X86, 1, [whether FPU control word can be manipulated by inline assembler])
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
])
|
