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libstdc++: Replace AC_CACHE_VAL with AC_CACHE_CHECK 

This replaces most uses of AC_CACHE_VAL with AC_CACHE_CHECK, which means
we don't need separate AC_MSG_CHECKING and AC_MSG_RESULT macros.

There are a few trivial bugs fixed as a side effect, where an
AC_MSG_RESULT was printed out even if the actual checks hadn't been
done. That didn't affect the results, only the content of config.log.

libstdc++-v3/ChangeLog:

	* acinclude.m4: Replace AC_CACHE_VAL with AC_CACHE_CHECK.
	* configure: Regenerate.
This commit is contained in:
Jonathan Wakely 2021-11-17 20:14:52 +00:00
parent 1a0bce98dc
commit 9646a3229b
2 changed files with 278 additions and 406 deletions
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284
libstdc++-v3/acinclude.m4
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@ -342,7 +342,8 @@ AC_DEFUN([GLIBCXX_CHECK_SETRLIMIT], [
GLIBCXX_CHECK_SETRLIMIT_ancilliary(FSIZE)
# Check for rlimit, setrlimit.
AC_CACHE_VAL(glibcxx_cv_setrlimit, [
AC_CACHE_CHECK([for testsuite resource limits support],
glibcxx_cv_setrlimit, [
AC_TRY_COMPILE(
[#include <unistd.h>
#include <sys/time.h>
@ -352,19 +353,14 @@ AC_DEFUN([GLIBCXX_CHECK_SETRLIMIT], [
setrlimit(0, &r);],
[glibcxx_cv_setrlimit=yes], [glibcxx_cv_setrlimit=no])
])
fi
AC_MSG_CHECKING([for testsuite resource limits support])
if test $setrlimit_have_headers = yes && test $glibcxx_cv_setrlimit = yes; then
ac_res_limits=yes
AC_DEFINE(_GLIBCXX_RES_LIMITS, 1,
[Define if using setrlimit to set resource limits during
"make check"])
else
ac_res_limits=no
if test $glibcxx_cv_setrlimit = yes; then
AC_DEFINE(_GLIBCXX_RES_LIMITS, 1,
[Define if using setrlimit to set resource limits during
"make check"])
fi
fi
AC_LANG_RESTORE
AC_MSG_RESULT($ac_res_limits)
])
@ -425,8 +421,7 @@ AC_DEFUN([GLIBCXX_CHECK_POLL], [
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for poll])
AC_CACHE_VAL(glibcxx_cv_POLL, [
AC_CACHE_CHECK([for poll], glibcxx_cv_POLL, [
GCC_TRY_COMPILE_OR_LINK(
[#include <poll.h>],
[struct pollfd pfd[1];
@ -438,7 +433,6 @@ AC_DEFUN([GLIBCXX_CHECK_POLL], [
if test $glibcxx_cv_POLL = yes; then
AC_DEFINE(HAVE_POLL, 1, [Define if poll is available in <poll.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_POLL)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -455,8 +449,7 @@ AC_DEFUN([GLIBCXX_CHECK_WRITEV], [
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for writev])
AC_CACHE_VAL(glibcxx_cv_WRITEV, [
AC_CACHE_CHECK([for writev], glibcxx_cv_WRITEV, [
GCC_TRY_COMPILE_OR_LINK(
[#include <sys/uio.h>],
[struct iovec iov[2];
@ -467,7 +460,6 @@ AC_DEFUN([GLIBCXX_CHECK_WRITEV], [
if test $glibcxx_cv_WRITEV = yes; then
AC_DEFINE(HAVE_WRITEV, 1, [Define if writev is available in <sys/uio.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_WRITEV)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -482,8 +474,7 @@ AC_DEFUN([GLIBCXX_CHECK_LFS], [
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for LFS support])
AC_CACHE_VAL(glibcxx_cv_LFS, [
AC_CACHE_CHECK([for LFS support], glibcxx_cv_LFS, [
GCC_TRY_COMPILE_OR_LINK(
[#include <unistd.h>
#include <stdio.h>
@ -502,7 +493,6 @@ AC_DEFUN([GLIBCXX_CHECK_LFS], [
if test $glibcxx_cv_LFS = yes; then
AC_DEFINE(_GLIBCXX_USE_LFS, 1, [Define if LFS support is available.])
fi
AC_MSG_RESULT($glibcxx_cv_LFS)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
])
@ -870,8 +860,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
fi
# Check for the existence of <math.h> functions used if C99 is enabled.
AC_MSG_CHECKING([for ISO C99 support in <math.h> for C++98])
AC_CACHE_VAL(glibcxx_cv_c99_math_cxx98, [
AC_CACHE_CHECK([for ISO C99 support in <math.h> for C++98],
glibcxx_cv_c99_math_cxx98, [
GCC_TRY_COMPILE_OR_LINK(
[#include <math.h>
volatile double d1, d2;
@ -891,7 +881,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
i = isunordered(d1, d2);
], [glibcxx_cv_c99_math_cxx98=yes], [glibcxx_cv_c99_math_cxx98=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_math_cxx98)
if test x"$glibcxx_cv_c99_math_cxx98" = x"yes"; then
AC_DEFINE(_GLIBCXX98_USE_C99_MATH, 1,
[Define if C99 functions or macros in <math.h> should be imported
@ -905,8 +894,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
AC_CHECK_HEADERS(tgmath.h, ac_has_tgmath_h=yes, ac_has_tgmath_h=no)
AC_CHECK_HEADERS(complex.h, ac_has_complex_h=yes, ac_has_complex_h=no)
if test x"$ac_has_complex_h" = x"yes"; then
AC_MSG_CHECKING([for ISO C99 support in <complex.h> for C++98])
AC_CACHE_VAL(glibcxx_cv_c99_complex_cxx98, [
AC_CACHE_CHECK([for ISO C99 support in <complex.h> for C++98],
glibcxx_cv_c99_complex_cxx98, [
GCC_TRY_COMPILE_OR_LINK(
[#include <complex.h>
typedef __complex__ float float_type;
@ -960,7 +949,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
], [glibcxx_cv_c99_complex_cxx98=yes], [glibcxx_cv_c99_complex_cxx98=no])
])
fi
AC_MSG_RESULT($glibcxx_cv_c99_complex_cxx98)
if test x"$glibcxx_cv_c99_complex_cxx98" = x"yes"; then
AC_DEFINE(_GLIBCXX98_USE_C99_COMPLEX, 1,
[Define if C99 functions in <complex.h> should be used in
@ -969,8 +957,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
fi
# Check for the existence in <stdio.h> of vscanf, et. al.
AC_MSG_CHECKING([for ISO C99 support in <stdio.h> for C++98])
AC_CACHE_VAL(glibcxx_cv_c99_stdio_cxx98, [
AC_CACHE_CHECK([for ISO C99 support in <stdio.h> for C++98],
glibcxx_cv_c99_stdio_cxx98, [
GCC_TRY_COMPILE_OR_LINK(
[#include <stdio.h>
#include <stdarg.h>
@ -985,7 +973,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
}], [],
[glibcxx_cv_c99_stdio_cxx98=yes], [glibcxx_cv_c99_stdio_cxx98=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_stdio_cxx98)
if test x"$glibcxx_cv_c99_stdio_cxx98" = x"yes"; then
AC_DEFINE(_GLIBCXX98_USE_C99_STDIO, 1,
[Define if C99 functions or macros in <stdio.h> should be imported
@ -993,8 +980,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
fi
# Check for the existence in <stdlib.h> of lldiv_t, et. al.
AC_MSG_CHECKING([for ISO C99 support in <stdlib.h> for C++98])
AC_CACHE_VAL(glibcxx_cv_c99_stdlib_cxx98, [
AC_CACHE_CHECK([for ISO C99 support in <stdlib.h> for C++98],
glibcxx_cv_c99_stdlib_cxx98, [
GCC_TRY_COMPILE_OR_LINK(
[#include <stdlib.h>
volatile float f;
@ -1014,7 +1001,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
_Exit(0);
], [glibcxx_cv_c99_stdlib_cxx98=yes], [glibcxx_cv_c99_stdlib_cxx98=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_stdlib_cxx98)
if test x"$glibcxx_cv_c99_stdlib_cxx98" = x"yes"; then
AC_DEFINE(_GLIBCXX98_USE_C99_STDLIB, 1,
[Define if C99 functions or macros in <stdlib.h> should be imported
@ -1024,8 +1010,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
# Check for the existence in <wchar.h> of wcstold, etc.
if test x"$ac_has_wchar_h" = xyes &&
test x"$ac_has_wctype_h" = xyes; then
AC_MSG_CHECKING([for ISO C99 support in <wchar.h> for C++98])
AC_CACHE_VAL(glibcxx_cv_c99_wchar_cxx98, [
AC_CACHE_CHECK([for ISO C99 support in <wchar.h> for C++98],
glibcxx_cv_c99_wchar_cxx98, [
AC_TRY_COMPILE([#include <wchar.h>
namespace test
{
@ -1060,7 +1046,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
[wint_t t; int i = iswblank(t);],
[AC_DEFINE(HAVE_ISWBLANK, 1, [Defined if iswblank exists.])], [])
AC_MSG_RESULT($glibcxx_cv_c99_wchar_cxx98)
if test x"$glibcxx_cv_c99_wchar_cxx98" = x"yes"; then
AC_DEFINE(_GLIBCXX98_USE_C99_WCHAR, 1,
[Define if C99 functions or macros in <wchar.h> should be imported
@ -1107,8 +1092,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
fi
# Check for the existence of <math.h> functions used if C99 is enabled.
AC_MSG_CHECKING([for ISO C99 support in <math.h> for C++11])
AC_CACHE_VAL(glibcxx_cv_c99_math_cxx11, [
AC_CACHE_CHECK([for ISO C99 support in <math.h> for C++11],
glibcxx_cv_c99_math_cxx11, [
GCC_TRY_COMPILE_OR_LINK(
[#include <math.h>
volatile double d1, d2;
@ -1128,7 +1113,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
i = isunordered(d1, d2);
], [glibcxx_cv_c99_math_cxx11=yes], [glibcxx_cv_c99_math_cxx11=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_math_cxx11)
if test x"$glibcxx_cv_c99_math_cxx11" = x"yes"; then
AC_DEFINE(_GLIBCXX11_USE_C99_MATH, 1,
[Define if C99 functions or macros in <math.h> should be imported
@ -1142,8 +1126,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
AC_CHECK_HEADERS(tgmath.h, ac_has_tgmath_h=yes, ac_has_tgmath_h=no)
AC_CHECK_HEADERS(complex.h, ac_has_complex_h=yes, ac_has_complex_h=no)
if test x"$ac_has_complex_h" = x"yes"; then
AC_MSG_CHECKING([for ISO C99 support in <complex.h> for C++11])
AC_CACHE_VAL(glibcxx_cv_c99_complex_cxx11, [
AC_CACHE_CHECK([for ISO C99 support in <complex.h> for C++11],
glibcxx_cv_c99_complex_cxx11, [
GCC_TRY_COMPILE_OR_LINK(
[#include <complex.h>
typedef __complex__ float float_type;
@ -1197,7 +1181,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
], [glibcxx_cv_c99_complex_cxx11=yes], [glibcxx_cv_c99_complex_cxx11=no])
])
fi
AC_MSG_RESULT($glibcxx_cv_c99_complex_cxx11)
if test x"$glibcxx_cv_c99_complex_cxx11" = x"yes"; then
AC_DEFINE(_GLIBCXX11_USE_C99_COMPLEX, 1,
[Define if C99 functions in <complex.h> should be used in
@ -1206,8 +1189,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
fi
# Check for the existence in <stdio.h> of vscanf, et. al.
AC_MSG_CHECKING([for ISO C99 support in <stdio.h> for C++11])
AC_CACHE_VAL(glibcxx_cv_c99_stdio_cxx11, [
AC_CACHE_CHECK([for ISO C99 support in <stdio.h> for C++11],
glibcxx_cv_c99_stdio_cxx11, [
GCC_TRY_COMPILE_OR_LINK(
[#include <stdio.h>
#include <stdarg.h>
@ -1222,7 +1205,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
}], [],
[glibcxx_cv_c99_stdio_cxx11=yes], [glibcxx_cv_c99_stdio_cxx11=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_stdio_cxx11)
if test x"$glibcxx_cv_c99_stdio_cxx11" = x"yes"; then
AC_DEFINE(_GLIBCXX11_USE_C99_STDIO, 1,
[Define if C99 functions or macros in <stdio.h> should be imported
@ -1230,8 +1212,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
fi
# Check for the existence in <stdlib.h> of lldiv_t, et. al.
AC_MSG_CHECKING([for ISO C99 support in <stdlib.h> for C++11])
AC_CACHE_VAL(glibcxx_cv_c99_stdlib_cxx11, [
AC_CACHE_CHECK([for ISO C99 support in <stdlib.h> for C++11],
glibcxx_cv_c99_stdlib_cxx11, [
GCC_TRY_COMPILE_OR_LINK(
[#include <stdlib.h>
volatile float f;
@ -1251,7 +1233,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
_Exit(0);
], [glibcxx_cv_c99_stdlib_cxx11=yes], [glibcxx_cv_c99_stdlib_cxx11=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_stdlib_cxx11)
if test x"$glibcxx_cv_c99_stdlib_cxx11" = x"yes"; then
AC_DEFINE(_GLIBCXX11_USE_C99_STDLIB, 1,
[Define if C99 functions or macros in <stdlib.h> should be imported
@ -1261,8 +1242,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
# Check for the existence in <wchar.h> of wcstold, etc.
if test x"$ac_has_wchar_h" = xyes &&
test x"$ac_has_wctype_h" = xyes; then
AC_MSG_CHECKING([for ISO C99 support in <wchar.h> for C++11])
AC_CACHE_VAL(glibcxx_cv_c99_wchar_cxx11, [
AC_CACHE_CHECK([for ISO C99 support in <wchar.h> for C++11],
glibcxx_cv_c99_wchar_cxx11, [
AC_TRY_COMPILE([#include <wchar.h>
namespace test
{
@ -1297,7 +1278,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
[wint_t t; int i = iswblank(t);],
[AC_DEFINE(HAVE_ISWBLANK, 1, [Defined if iswblank exists.])], [])
AC_MSG_RESULT($glibcxx_cv_c99_wchar_cxx11)
if test x"$glibcxx_cv_c99_wchar_cxx11" = x"yes"; then
AC_DEFINE(_GLIBCXX11_USE_C99_WCHAR, 1,
[Define if C99 functions or macros in <wchar.h> should be imported
@ -1678,8 +1658,8 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
fi
# Check for the existence of <ctype.h> functions.
AC_MSG_CHECKING([for ISO C99 support to TR1 in <ctype.h>])
AC_CACHE_VAL(glibcxx_cv_c99_ctype_tr1, [
AC_CACHE_CHECK([for ISO C99 support to TR1 in <ctype.h>],
glibcxx_cv_c99_ctype_tr1, [
AC_TRY_COMPILE([#include <ctype.h>],
[int ch;
int ret;
@ -1687,7 +1667,6 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
],[glibcxx_cv_c99_ctype_tr1=yes],
[glibcxx_cv_c99_ctype_tr1=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_ctype_tr1)
if test x"$glibcxx_cv_c99_ctype_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_CTYPE_TR1, 1,
[Define if C99 functions in <ctype.h> should be imported in
@ -1716,8 +1695,8 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
ret = fesetenv(penv);
ret = feupdateenv(penv);
],[ac_c99_fenv_tr1=yes], [ac_c99_fenv_tr1=no])
AC_MSG_RESULT($ac_c99_fenv_tr1)
fi
AC_MSG_RESULT($ac_c99_fenv_tr1)
if test x"$ac_c99_fenv_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_FENV_TR1, 1,
[Define if C99 functions in <fenv.h> should be imported in
@ -1725,8 +1704,8 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
fi
# Check for the existence of <stdint.h> types.
AC_MSG_CHECKING([for ISO C99 support to TR1 in <stdint.h>])
AC_CACHE_VAL(glibcxx_cv_c99_stdint_tr1, [
AC_CACHE_CHECK([for ISO C99 support to TR1 in <stdint.h>],
glibcxx_cv_c99_stdint_tr1, [
AC_TRY_COMPILE([#define __STDC_LIMIT_MACROS
#define __STDC_CONSTANT_MACROS
#include <stdint.h>],
@ -1817,7 +1796,6 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
],[glibcxx_cv_c99_stdint_tr1=yes],
[glibcxx_cv_c99_stdint_tr1=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_stdint_tr1)
if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_STDINT_TR1, 1,
[Define if C99 types in <stdint.h> should be imported in
@ -1825,8 +1803,8 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
fi
# Check for the existence of <math.h> functions.
AC_MSG_CHECKING([for ISO C99 support to TR1 in <math.h>])
AC_CACHE_VAL(glibcxx_cv_c99_math_tr1, [
AC_CACHE_CHECK([for ISO C99 support to TR1 in <math.h>],
glibcxx_cv_c99_math_tr1, [
AC_TRY_COMPILE([#include <math.h>],
[typedef double_t my_double_t;
typedef float_t my_float_t;
@ -1939,7 +1917,6 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
truncl(0.0l);
],[glibcxx_cv_c99_math_tr1=yes], [glibcxx_cv_c99_math_tr1=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_math_tr1)
if test x"$glibcxx_cv_c99_math_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_MATH_TR1, 1,
[Define if C99 functions or macros in <math.h> should be imported
@ -1947,8 +1924,8 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
case "${target_os}" in
darwin*)
AC_MSG_CHECKING([for ISO C99 rounding functions in <math.h>])
AC_CACHE_VAL(glibcxx_cv_c99_math_llround, [
AC_CACHE_CHECK([for ISO C99 rounding functions in <math.h>],
glibcxx_cv_c99_math_llround, [
AC_TRY_COMPILE([#include <math.h>],
[llrint(0.0);
llrintf(0.0f);
@ -1960,7 +1937,6 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
[glibcxx_cv_c99_math_llround=yes],
[glibcxx_cv_c99_math_llround=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_math_llround)
;;
esac
if test x"$glibcxx_cv_c99_math_llround" = x"no"; then
@ -1983,8 +1959,8 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
ret = strtoimax(s, endptr, base);
uintmax_t uret = strtoumax(s, endptr, base);
],[ac_c99_inttypes_tr1=yes], [ac_c99_inttypes_tr1=no])
AC_MSG_RESULT($ac_c99_inttypes_tr1)
fi
AC_MSG_RESULT($ac_c99_inttypes_tr1)
if test x"$ac_c99_inttypes_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_INTTYPES_TR1, 1,
[Define if C99 functions in <inttypes.h> should be imported in
@ -2004,8 +1980,8 @@ AC_DEFUN([GLIBCXX_CHECK_C99_TR1], [
uintmax_t uret = wcstoumax(s, endptr, base);
],[ac_c99_inttypes_wchar_t_tr1=yes],
[ac_c99_inttypes_wchar_t_tr1=no])
AC_MSG_RESULT($ac_c99_inttypes_wchar_t_tr1)
fi
AC_MSG_RESULT($ac_c99_inttypes_wchar_t_tr1)
if test x"$ac_c99_inttypes_wchar_t_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1, 1,
[Define if wchar_t C99 functions in <inttypes.h> should be
@ -2053,10 +2029,10 @@ AC_DEFUN([GLIBCXX_CHECK_UCHAR_H], [
}
],
[], [ac_c11_uchar_cxx11=yes], [ac_c11_uchar_cxx11=no])
AC_MSG_RESULT($ac_c11_uchar_cxx11)
else
ac_c11_uchar_cxx11=no
fi
AC_MSG_RESULT($ac_c11_uchar_cxx11)
if test x"$ac_c11_uchar_cxx11" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C11_UCHAR_CXX11, 1,
[Define if C11 functions in <uchar.h> should be imported into
@ -2075,8 +2051,8 @@ dnl random_device of "TR1" (Chapter 5.1, "Random number generation").
dnl
AC_DEFUN([GLIBCXX_CHECK_DEV_RANDOM], [
AC_MSG_CHECKING([for "/dev/random" and "/dev/urandom" for std::random_device])
AC_CACHE_VAL(glibcxx_cv_dev_random, [
AC_CACHE_CHECK([for "/dev/random" and "/dev/urandom" for std::random_device],
glibcxx_cv_dev_random, [
if test -r /dev/random && test -r /dev/urandom; then
## For MSys environment the test above is detected as false-positive
## on mingw-targets. So disable it explicitly for them.
@ -2088,7 +2064,6 @@ AC_DEFUN([GLIBCXX_CHECK_DEV_RANDOM], [
glibcxx_cv_dev_random=no;
fi
])
AC_MSG_RESULT($glibcxx_cv_dev_random)
if test x"$glibcxx_cv_dev_random" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_DEV_RANDOM, 1,
@ -2143,8 +2118,7 @@ AC_DEFUN([GLIBCXX_CHECK_STDIO_PROTO], [
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -std=gnu++11"
AC_MSG_CHECKING([for gets declaration])
AC_CACHE_VAL(glibcxx_cv_gets, [
AC_CACHE_CHECK([for gets declaration], glibcxx_cv_gets, [
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[#include <stdio.h>
namespace test
@ -2159,7 +2133,6 @@ AC_DEFUN([GLIBCXX_CHECK_STDIO_PROTO], [
if test $glibcxx_cv_gets = yes; then
AC_DEFINE(HAVE_GETS, 1, [Define if gets is available in <stdio.h> before C++14.])
fi
AC_MSG_RESULT($glibcxx_cv_gets)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -2180,8 +2153,8 @@ AC_DEFUN([GLIBCXX_CHECK_MATH11_PROTO], [
*-*-solaris2.*)
# Solaris 12 Build 86, Solaris 11.3 SRU 3.6, and Solaris 10 Patch
# 11996[67]-02 introduced the C++11 <math.h> floating point overloads.
AC_MSG_CHECKING([for C++11 <math.h> floating point overloads])
AC_CACHE_VAL(glibcxx_cv_math11_fp_overload, [
AC_CACHE_CHECK([for C++11 <math.h> floating point overloads],
glibcxx_cv_math11_fp_overload, [
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[#include <math.h>
#undef isfinite
@ -2204,12 +2177,11 @@ AC_DEFUN([GLIBCXX_CHECK_MATH11_PROTO], [
if test $glibcxx_cv_math11_fp_overload = yes; then
AC_DEFINE(__CORRECT_ISO_CPP11_MATH_H_PROTO_FP)
fi
AC_MSG_RESULT([$glibcxx_cv_math11_fp_overload])
# Solaris 12 Build 90, Solaris 11.3 SRU 5.6, and Solaris 10 Patch
# 11996[67]-02 introduced the C++11 <math.h> integral type overloads.
AC_MSG_CHECKING([for C++11 <math.h> integral type overloads])
AC_CACHE_VAL(glibcxx_cv_math11_int_overload, [
AC_CACHE_CHECK([for C++11 <math.h> integral type overloads],
glibcxx_cv_math11_int_overload, [
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[#include <math.h>
namespace std {
@ -2256,15 +2228,14 @@ AC_DEFUN([GLIBCXX_CHECK_MATH11_PROTO], [
if test $glibcxx_cv_math11_int_overload = yes; then
AC_DEFINE(__CORRECT_ISO_CPP11_MATH_H_PROTO_INT)
fi
AC_MSG_RESULT([$glibcxx_cv_math11_int_overload])
;;
*)
# If <math.h> defines the obsolete isinf(double) and isnan(double)
# functions (instead of or as well as the C99 generic macros) then we
# can't define std::isinf(double) and std::isnan(double) in <cmath>
# and must use the ones from <math.h> instead.
AC_MSG_CHECKING([for obsolete isinf function in <math.h>])
AC_CACHE_VAL(glibcxx_cv_obsolete_isinf, [
AC_CACHE_CHECK([for obsolete isinf function in <math.h>],
glibcxx_cv_obsolete_isinf, [
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
#include <math.h>
@ -2280,14 +2251,13 @@ AC_DEFUN([GLIBCXX_CHECK_MATH11_PROTO], [
[glibcxx_cv_obsolete_isinf=yes],
[glibcxx_cv_obsolete_isinf=no]
)])
AC_MSG_RESULT([$glibcxx_cv_obsolete_isinf])
if test $glibcxx_cv_obsolete_isinf = yes; then
AC_DEFINE(HAVE_OBSOLETE_ISINF, 1,
[Define if <math.h> defines obsolete isinf function.])
fi
AC_MSG_CHECKING([for obsolete isnan function in <math.h>])
AC_CACHE_VAL(glibcxx_cv_obsolete_isnan, [
AC_CACHE_CHECK([for obsolete isnan function in <math.h>],
glibcxx_cv_obsolete_isnan, [
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
#include <math.h>
@ -2303,7 +2273,6 @@ AC_DEFUN([GLIBCXX_CHECK_MATH11_PROTO], [
[glibcxx_cv_obsolete_isnan=yes],
[glibcxx_cv_obsolete_isnan=no]
)])
AC_MSG_RESULT([$glibcxx_cv_obsolete_isnan])
if test $glibcxx_cv_obsolete_isnan = yes; then
AC_DEFINE(HAVE_OBSOLETE_ISNAN, 1,
[Define if <math.h> defines obsolete isnan function.])
@ -3316,8 +3285,8 @@ AC_DEFUN([GLIBCXX_ENABLE_ATOMIC_BUILTINS], [
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for atomic builtins for bool])
AC_CACHE_VAL(glibcxx_cv_atomic_bool, [
AC_CACHE_CHECK([for atomic builtins for bool],
glibcxx_cv_atomic_bool, [
AC_TRY_LINK(
[ ],
[typedef bool atomic_type;
@ -3333,10 +3302,9 @@ AC_DEFUN([GLIBCXX_ENABLE_ATOMIC_BUILTINS], [
[glibcxx_cv_atomic_bool=yes],
[glibcxx_cv_atomic_bool=no])
])
AC_MSG_RESULT($glibcxx_cv_atomic_bool)
AC_MSG_CHECKING([for atomic builtins for short])
AC_CACHE_VAL(glibcxx_cv_atomic_short, [
AC_CACHE_CHECK([for atomic builtins for short],
glibcxx_cv_atomic_short, [
AC_TRY_LINK(
[ ],
[typedef short atomic_type;
@ -3352,10 +3320,9 @@ AC_DEFUN([GLIBCXX_ENABLE_ATOMIC_BUILTINS], [
[glibcxx_cv_atomic_short=yes],
[glibcxx_cv_atomic_short=no])
])
AC_MSG_RESULT($glibcxx_cv_atomic_short)
AC_MSG_CHECKING([for atomic builtins for int])
AC_CACHE_VAL(glibcxx_cv_atomic_int, [
AC_CACHE_CHECK([for atomic builtins for int],
glibcxx_cv_atomic_int, [
AC_TRY_LINK(
[ ],
[typedef int atomic_type;
@ -3371,10 +3338,9 @@ AC_DEFUN([GLIBCXX_ENABLE_ATOMIC_BUILTINS], [
[glibcxx_cv_atomic_int=yes],
[glibcxx_cv_atomic_int=no])
])
AC_MSG_RESULT($glibcxx_cv_atomic_int)
AC_MSG_CHECKING([for atomic builtins for long long])
AC_CACHE_VAL(glibcxx_cv_atomic_long_long, [
AC_CACHE_CHECK([for atomic builtins for long long],
glibcxx_cv_atomic_long_long, [
AC_TRY_LINK(
[ ],
[typedef long long atomic_type;
@ -3390,7 +3356,6 @@ AC_DEFUN([GLIBCXX_ENABLE_ATOMIC_BUILTINS], [
[glibcxx_cv_atomic_long_long=yes],
[glibcxx_cv_atomic_long_long=no])
])
AC_MSG_RESULT($glibcxx_cv_atomic_long_long)
else
@ -4063,8 +4028,8 @@ AC_DEFUN([AC_LC_MESSAGES], [
dnl
dnl Check whether rdrand is supported in the assembler.
AC_DEFUN([GLIBCXX_CHECK_X86_RDRAND], [
AC_MSG_CHECKING([for rdrand support in assembler])
AC_CACHE_VAL(ac_cv_x86_rdrand, [
AC_CACHE_CHECK([for rdrand support in assembler],
ac_cv_x86_rdrand, [
ac_cv_x86_rdrand=no
case "$target" in
i?86-*-* | \
@ -4077,14 +4042,13 @@ AC_DEFUN([GLIBCXX_CHECK_X86_RDRAND], [
AC_DEFINE(_GLIBCXX_X86_RDRAND, 1,
[ Defined if as can handle rdrand. ])
fi
AC_MSG_RESULT($ac_cv_x86_rdrand)
])
dnl
dnl Check whether rdseed is supported in the assembler.
AC_DEFUN([GLIBCXX_CHECK_X86_RDSEED], [
AC_MSG_CHECKING([for rdseed support in assembler])
AC_CACHE_VAL(ac_cv_x86_rdseed, [
AC_CACHE_CHECK([for rdseed support in assembler],
ac_cv_x86_rdseed, [
ac_cv_x86_rdseed=no
case "$target" in
i?86-*-* | \
@ -4097,7 +4061,6 @@ AC_DEFUN([GLIBCXX_CHECK_X86_RDSEED], [
AC_DEFINE(_GLIBCXX_X86_RDSEED, 1,
[ Defined if as can handle rdseed. ])
fi
AC_MSG_RESULT($ac_cv_x86_rdseed)
])
dnl
@ -4110,8 +4073,8 @@ AC_DEFUN([GLIBCXX_CHECK_GET_NPROCS], [
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for get_nprocs])
AC_CACHE_VAL(glibcxx_cv_GET_NPROCS, [
AC_CACHE_CHECK([for get_nprocs],
glibcxx_cv_GET_NPROCS, [
GCC_TRY_COMPILE_OR_LINK(
[#include <sys/sysinfo.h>],
[int n = get_nprocs();],
@ -4121,7 +4084,6 @@ AC_DEFUN([GLIBCXX_CHECK_GET_NPROCS], [
if test $glibcxx_cv_GET_NPROCS = yes; then
AC_DEFINE(_GLIBCXX_USE_GET_NPROCS, 1, [Define if get_nprocs is available in <sys/sysinfo.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_GET_NPROCS)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -4137,8 +4099,8 @@ AC_DEFUN([GLIBCXX_CHECK_SC_NPROCESSORS_ONLN], [
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for _SC_NPROCESSORS_ONLN])
AC_CACHE_VAL(glibcxx_cv_SC_NPROCESSORS_ONLN, [
AC_CACHE_CHECK([for _SC_NPROCESSORS_ONLN],
glibcxx_cv_SC_NPROCESSORS_ONLN, [
GCC_TRY_COMPILE_OR_LINK(
[#include <unistd.h>],
[int n = sysconf(_SC_NPROCESSORS_ONLN);],
@ -4148,7 +4110,6 @@ AC_DEFUN([GLIBCXX_CHECK_SC_NPROCESSORS_ONLN], [
if test $glibcxx_cv_SC_NPROCESSORS_ONLN = yes; then
AC_DEFINE(_GLIBCXX_USE_SC_NPROCESSORS_ONLN, 1, [Define if _SC_NPROCESSORS_ONLN is available in <unistd.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_SC_NPROCESSORS_ONLN)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -4164,8 +4125,8 @@ AC_DEFUN([GLIBCXX_CHECK_SC_NPROC_ONLN], [
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for _SC_NPROC_ONLN])
AC_CACHE_VAL(glibcxx_cv_SC_NPROC_ONLN, [
AC_CACHE_CHECK([for _SC_NPROC_ONLN],
glibcxx_cv_SC_NPROC_ONLN, [
GCC_TRY_COMPILE_OR_LINK(
[#include <unistd.h>],
[int n = sysconf(_SC_NPROC_ONLN);],
@ -4175,7 +4136,6 @@ AC_DEFUN([GLIBCXX_CHECK_SC_NPROC_ONLN], [
if test $glibcxx_cv_SC_NPROC_ONLN = yes; then
AC_DEFINE(_GLIBCXX_USE_SC_NPROC_ONLN, 1, [Define if _SC_NPROC_ONLN is available in <unistd.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_SC_NPROC_ONLN)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -4191,8 +4151,8 @@ AC_DEFUN([GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP], [
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for pthreads_num_processors_np])
AC_CACHE_VAL(glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP, [
AC_CACHE_CHECK([for pthreads_num_processors_np],
glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP, [
GCC_TRY_COMPILE_OR_LINK(
[#include <pthread.h>],
[int n = pthread_num_processors_np();],
@ -4202,7 +4162,6 @@ AC_DEFUN([GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP], [
if test $glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP = yes; then
AC_DEFINE(_GLIBCXX_USE_PTHREADS_NUM_PROCESSORS_NP, 1, [Define if pthreads_num_processors_np is available in <pthread.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -4221,8 +4180,8 @@ AC_DEFUN([GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT], [
ac_save_LIBS="$LIBS"
LIBS="$LIBS -lpthread"
AC_MSG_CHECKING([for pthread_cond_clockwait])
AC_CACHE_VAL(glibcxx_cv_PTHREAD_COND_CLOCKWAIT, [
AC_CACHE_CHECK([for pthread_cond_clockwait],
glibcxx_cv_PTHREAD_COND_CLOCKWAIT, [
GCC_TRY_COMPILE_OR_LINK(
[#include <pthread.h>],
[pthread_mutex_t mutex; pthread_cond_t cond; struct timespec ts; int n = pthread_cond_clockwait(&cond, &mutex, 0, &ts);],
@ -4232,7 +4191,6 @@ AC_DEFUN([GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT], [
if test $glibcxx_cv_PTHREAD_COND_CLOCKWAIT = yes; then
AC_DEFINE(_GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT, 1, [Define if pthread_cond_clockwait is available in <pthread.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_PTHREAD_COND_CLOCKWAIT)
CXXFLAGS="$ac_save_CXXFLAGS"
LIBS="$ac_save_LIBS"
@ -4252,8 +4210,8 @@ AC_DEFUN([GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK], [
ac_save_LIBS="$LIBS"
LIBS="$LIBS -lpthread"
AC_MSG_CHECKING([for pthread_mutex_clocklock])
AC_CACHE_VAL(glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK, [
AC_CACHE_CHECK([for pthread_mutex_clocklock],
glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK, [
GCC_TRY_COMPILE_OR_LINK(
[#include <pthread.h>],
[pthread_mutex_t mutex; struct timespec ts; int n = pthread_mutex_clocklock(&mutex, CLOCK_REALTIME, &ts);],
@ -4263,7 +4221,6 @@ AC_DEFUN([GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK], [
if test $glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK = yes; then
AC_DEFINE(_GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK, 1, [Define if pthread_mutex_clocklock is available in <pthread.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_PTHREAD_MUTEX_CLOCKLOCK)
CXXFLAGS="$ac_save_CXXFLAGS"
LIBS="$ac_save_LIBS"
@ -4283,8 +4240,8 @@ AC_DEFUN([GLIBCXX_CHECK_PTHREAD_RWLOCK_CLOCKLOCK], [
ac_save_LIBS="$LIBS"
LIBS="$LIBS -lpthread"
AC_MSG_CHECKING([for pthread_rwlock_clockrdlock, pthread_wlock_clockwrlock])
AC_CACHE_VAL(glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK, [
AC_CACHE_CHECK([for pthread_rwlock_clockrdlock, pthread_wlock_clockwrlock],
glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK, [
GCC_TRY_COMPILE_OR_LINK(
[#include <pthread.h>],
[pthread_rwlock_t rwl; struct timespec ts;]
@ -4296,7 +4253,6 @@ AC_DEFUN([GLIBCXX_CHECK_PTHREAD_RWLOCK_CLOCKLOCK], [
if test $glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK = yes; then
AC_DEFINE(_GLIBCXX_USE_PTHREAD_RWLOCK_CLOCKLOCK, 1, [Define if pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock are available in <pthread.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_PTHREAD_RWLOCK_CLOCKLOCK)
CXXFLAGS="$ac_save_CXXFLAGS"
LIBS="$ac_save_LIBS"
@ -4313,8 +4269,8 @@ AC_DEFUN([GLIBCXX_CHECK_SYSCTL_HW_NCPU], [
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for hw.ncpu sysctl])
AC_CACHE_VAL(glibcxx_cv_SYSCTL_HW_NCPU, [
AC_CACHE_CHECK([for hw.ncpu sysctl],
glibcxx_cv_SYSCTL_HW_NCPU, [
GCC_TRY_COMPILE_OR_LINK(
[
#include <stddef.h>
@ -4332,7 +4288,6 @@ AC_DEFUN([GLIBCXX_CHECK_SYSCTL_HW_NCPU], [
if test $glibcxx_cv_SYSCTL_HW_NCPU = yes; then
AC_DEFINE(_GLIBCXX_USE_SYSCTL_HW_NCPU, 1, [Define if sysctl(), CTL_HW and HW_NCPU are available in <sys/sysctl.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_SYSCTL_HW_NCPU)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -4380,8 +4335,7 @@ dnl
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
dnl
AC_MSG_CHECKING([for tmpnam])
AC_CACHE_VAL(glibcxx_cv_TMPNAM, [dnl
AC_CACHE_CHECK([for tmpnam], glibcxx_cv_TMPNAM, [dnl
GCC_TRY_COMPILE_OR_LINK(
[#include <stdio.h>],
[char *tmp = tmpnam(NULL);],
@ -4391,7 +4345,6 @@ dnl
if test $glibcxx_cv_TMPNAM = yes; then
AC_DEFINE(_GLIBCXX_USE_TMPNAM, 1, [Define if obsolescent tmpnam is available in <stdio.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_TMPNAM)
dnl
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -4402,13 +4355,13 @@ dnl Check to see if sys/sdt.h exists and that it is suitable for use.
dnl Some versions of sdt.h were not compatible with C++11.
dnl
AC_DEFUN([GLIBCXX_CHECK_SDT_H], [
AC_MSG_CHECKING([for suitable sys/sdt.h])
# Note that this test has to be run with the C language.
# Otherwise, sdt.h will try to include some headers from
# libstdc++ itself.
AC_LANG_SAVE
AC_LANG_C
AC_CACHE_VAL(glibcxx_cv_sys_sdt_h, [
AC_CACHE_CHECK([for suitable sys/sdt.h],
glibcxx_cv_sys_sdt_h, [
# Because we have to run the test in C, we use grep rather
# than the compiler to check for the bug. The bug is that
# were strings without trailing whitespace, causing g++
@ -4424,7 +4377,6 @@ AC_DEFUN([GLIBCXX_CHECK_SDT_H], [
AC_DEFINE(HAVE_SYS_SDT_H, 1,
[Define to 1 if you have a suitable <sys/sdt.h> header file])
fi
AC_MSG_RESULT($glibcxx_cv_sys_sdt_h)
])
dnl
@ -4546,8 +4498,7 @@ dnl
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
dnl
AC_MSG_CHECKING([for struct dirent.d_type])
AC_CACHE_VAL(glibcxx_cv_dirent_d_type, [dnl
AC_CACHE_CHECK([for struct dirent.d_type], glibcxx_cv_dirent_d_type, [dnl
GCC_TRY_COMPILE_OR_LINK(
[#include <dirent.h>],
[
@ -4560,10 +4511,8 @@ dnl
if test $glibcxx_cv_dirent_d_type = yes; then
AC_DEFINE(HAVE_STRUCT_DIRENT_D_TYPE, 1, [Define to 1 if `d_type' is a member of `struct dirent'.])
fi
AC_MSG_RESULT($glibcxx_cv_dirent_d_type)
dnl
AC_MSG_CHECKING([for realpath])
AC_CACHE_VAL(glibcxx_cv_realpath, [dnl
AC_CACHE_CHECK([for realpath], glibcxx_cv_realpath, [dnl
GCC_TRY_COMPILE_OR_LINK(
[
#include <limits.h>
@ -4585,10 +4534,8 @@ dnl
if test $glibcxx_cv_realpath = yes; then
AC_DEFINE(_GLIBCXX_USE_REALPATH, 1, [Define if usable realpath is available in <stdlib.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_realpath)
dnl
AC_MSG_CHECKING([for utimensat])
AC_CACHE_VAL(glibcxx_cv_utimensat, [dnl
AC_CACHE_CHECK([for utimensat], glibcxx_cv_utimensat, [dnl
GCC_TRY_COMPILE_OR_LINK(
[
#include <fcntl.h>
@ -4604,10 +4551,8 @@ dnl
if test $glibcxx_cv_utimensat = yes; then
AC_DEFINE(_GLIBCXX_USE_UTIMENSAT, 1, [Define if utimensat and UTIME_OMIT are available in <sys/stat.h> and AT_FDCWD in <fcntl.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_utimensat)
dnl
AC_MSG_CHECKING([for utime])
AC_CACHE_VAL(glibcxx_cv_utime, [dnl
AC_CACHE_CHECK([for utime], glibcxx_cv_utime, [dnl
GCC_TRY_COMPILE_OR_LINK(
[
#include <utime.h>
@ -4622,10 +4567,8 @@ dnl
if test $glibcxx_cv_utime = yes; then
AC_DEFINE(_GLIBCXX_USE_UTIME, 1, [Define if utime is available in <utime.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_utime)
dnl
AC_MSG_CHECKING([for lstat])
AC_CACHE_VAL(glibcxx_cv_lstat, [dnl
AC_CACHE_CHECK([for lstat], glibcxx_cv_lstat, [dnl
GCC_TRY_COMPILE_OR_LINK(
[ #include <sys/stat.h> ],
[
@ -4638,10 +4581,9 @@ dnl
if test $glibcxx_cv_lstat = yes; then
AC_DEFINE(_GLIBCXX_USE_LSTAT, 1, [Define if lstat is available in <sys/stat.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_lstat)
dnl
AC_MSG_CHECKING([for struct stat.st_mtim.tv_nsec])
AC_CACHE_VAL(glibcxx_cv_st_mtim, [dnl
AC_CACHE_CHECK([for struct stat.st_mtim.tv_nsec],
glibcxx_cv_st_mtim, [dnl
GCC_TRY_COMPILE_OR_LINK(
[ #include <sys/stat.h> ],
[
@ -4654,10 +4596,9 @@ dnl
if test $glibcxx_cv_st_mtim = yes; then
AC_DEFINE(_GLIBCXX_USE_ST_MTIM, 1, [Define if struct stat has timespec members.])
fi
AC_MSG_RESULT($glibcxx_cv_st_mtim)
dnl
AC_MSG_CHECKING([for fchmod])
AC_CACHE_VAL(glibcxx_cv_fchmod, [dnl
AC_CACHE_CHECK([for fchmod],
glibcxx_cv_fchmod, [dnl
GCC_TRY_COMPILE_OR_LINK(
[#include <sys/stat.h>],
[fchmod(1, S_IWUSR);],
@ -4667,10 +4608,9 @@ dnl
if test $glibcxx_cv_fchmod = yes; then
AC_DEFINE(_GLIBCXX_USE_FCHMOD, 1, [Define if fchmod is available in <sys/stat.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_fchmod)
dnl
AC_MSG_CHECKING([for fchmodat])
AC_CACHE_VAL(glibcxx_cv_fchmodat, [dnl
AC_CACHE_CHECK([for fchmodat],
glibcxx_cv_fchmodat, [dnl
GCC_TRY_COMPILE_OR_LINK(
[
#include <fcntl.h>
@ -4683,10 +4623,9 @@ dnl
if test $glibcxx_cv_fchmodat = yes; then
AC_DEFINE(_GLIBCXX_USE_FCHMODAT, 1, [Define if fchmodat is available in <sys/stat.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_fchmodat)
dnl
AC_MSG_CHECKING([for sendfile that can copy files])
AC_CACHE_VAL(glibcxx_cv_sendfile, [dnl
AC_CACHE_CHECK([for sendfile that can copy files],
glibcxx_cv_sendfile, [dnl
case "${target_os}" in
gnu* | linux* | solaris* | uclinux*)
GCC_TRY_COMPILE_OR_LINK(
@ -4703,10 +4642,9 @@ dnl
if test $glibcxx_cv_sendfile = yes; then
AC_DEFINE(_GLIBCXX_USE_SENDFILE, 1, [Define if sendfile is available in <sys/sendfile.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_sendfile)
dnl
AC_MSG_CHECKING([for link])
AC_CACHE_VAL(glibcxx_cv_link, [dnl
AC_CACHE_CHECK([for link],
glibcxx_cv_link, [dnl
GCC_TRY_COMPILE_OR_LINK(
[#include <unistd.h>],
[link("", "");],
@ -4716,10 +4654,9 @@ dnl
if test $glibcxx_cv_link = yes; then
AC_DEFINE(HAVE_LINK, 1, [Define if link is available in <unistd.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_link)
dnl
AC_MSG_CHECKING([for readlink])
AC_CACHE_VAL(glibcxx_cv_readlink, [dnl
AC_CACHE_CHECK([for readlink],
glibcxx_cv_readlink, [dnl
GCC_TRY_COMPILE_OR_LINK(
[#include <unistd.h>],
[char buf[32]; readlink("", buf, sizeof(buf));],
@ -4729,10 +4666,9 @@ dnl
if test $glibcxx_cv_readlink = yes; then
AC_DEFINE(HAVE_READLINK, 1, [Define if readlink is available in <unistd.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_readlink)
dnl
AC_MSG_CHECKING([for symlink])
AC_CACHE_VAL(glibcxx_cv_symlink, [dnl
AC_CACHE_CHECK([for symlink],
glibcxx_cv_symlink, [dnl
GCC_TRY_COMPILE_OR_LINK(
[#include <unistd.h>],
[symlink("", "");],
@ -4742,10 +4678,9 @@ dnl
if test $glibcxx_cv_symlink = yes; then
AC_DEFINE(HAVE_SYMLINK, 1, [Define if symlink is available in <unistd.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_symlink)
dnl
AC_MSG_CHECKING([for truncate])
AC_CACHE_VAL(glibcxx_cv_truncate, [dnl
AC_CACHE_CHECK([for truncate],
glibcxx_cv_truncate, [dnl
GCC_TRY_COMPILE_OR_LINK(
[#include <unistd.h>],
[truncate("", 99);],
@ -4755,7 +4690,6 @@ dnl
if test $glibcxx_cv_truncate = yes; then
AC_DEFINE(HAVE_TRUNCATE, 1, [Define if truncate is available in <unistd.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_truncate)
dnl
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
@ -4837,8 +4771,7 @@ AC_DEFUN([GLIBCXX_CHECK_GETENTROPY], [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([for getentropy])
AC_CACHE_VAL(glibcxx_cv_getentropy, [
AC_CACHE_CHECK([for getentropy], glibcxx_cv_getentropy, [
GCC_TRY_COMPILE_OR_LINK(
[#include <unistd.h>],
[unsigned i;
@ -4849,7 +4782,6 @@ AC_DEFUN([GLIBCXX_CHECK_GETENTROPY], [
if test $glibcxx_cv_getentropy = yes; then
AC_DEFINE(HAVE_GETENTROPY, 1, [Define if getentropy is available in <unistd.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_getentropy)
AC_LANG_RESTORE
])
@ -4860,8 +4792,7 @@ AC_DEFUN([GLIBCXX_CHECK_ARC4RANDOM], [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_MSG_CHECKING([for arc4random])
AC_CACHE_VAL(glibcxx_cv_arc4random, [
AC_CACHE_CHECK([for arc4random], glibcxx_cv_arc4random, [
GCC_TRY_COMPILE_OR_LINK(
[#include <stdlib.h>],
[unsigned i = ::arc4random();],
@ -4871,7 +4802,6 @@ AC_DEFUN([GLIBCXX_CHECK_ARC4RANDOM], [
if test $glibcxx_cv_arc4random = yes; then
AC_DEFINE(HAVE_ARC4RANDOM, 1, [Define if arc4random is available in <stdlib.h>.])
fi
AC_MSG_RESULT($glibcxx_cv_arc4random)
AC_LANG_RESTORE
])

400
libstdc++-v3/configure vendored
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