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no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function.
config/ * no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function. libstdc++/ * acinclude.m4 (GLIBCXX_ENABLE_C99): Temporarily add -fno-exceptions to CXXFLAGS. Use GCC_TRY_COMPILE_OR_LINK. Make the tests assign results to volatile variables. * configure: Regenerate. From-SVN: r128959
This commit is contained in:
Richard Sandiford
Kazu Hirata
parent
506f93badb
commit
b32265748a
@ -1,3 +1,7 @@
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2007-10-02 Richard Sandiford <richard@codesourcery.com>
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* no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function.
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2007-09-21 Richard Sandiford <rsandifo@nildram.co.uk>
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* mt-sde (CFLAGS_FOR_TARGET): Replace -fno-optimize-sibling-calls
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@ -59,3 +59,11 @@ fi)
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m4_divert_pop()dnl
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])# GCC_NO_EXECUTABLES
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# Use the strongest available test out of AC_TRY_COMPILE and AC_TRY_LINK.
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AC_DEFUN([GCC_TRY_COMPILE_OR_LINK],
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[if test x$gcc_no_link = xyes; then
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AC_TRY_COMPILE([$1], [$2], [$3], [$4])
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else
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AC_TRY_LINK([$1], [$2], [$3], [$4])
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fi])
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@ -1,3 +1,10 @@
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2007-10-02 Richard Sandiford <richard@codesourcery.com>
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* acinclude.m4 (GLIBCXX_ENABLE_C99): Temporarily add
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-fno-exceptions to CXXFLAGS. Use GCC_TRY_COMPILE_OR_LINK.
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Make the tests assign results to volatile variables.
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* configure: Regenerate.
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2007-10-02 Benjamin Kosnik <bkoz@redhat.com>
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* testsuite/25_algorithms/binary_search/2.cc: Split into...
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@ -763,23 +763,31 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
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AC_LANG_SAVE
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AC_LANG_CPLUSPLUS
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# Use -fno-exceptions so that the C driver can link these tests without
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# hitting undefined references to personality routines.
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ac_save_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS -fno-exceptions"
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# Check for the existence of <math.h> functions used if C99 is enabled.
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AC_MSG_CHECKING([for ISO C99 support in <math.h>])
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AC_CACHE_VAL(ac_c99_math, [
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AC_TRY_COMPILE([#include <math.h>],
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[fpclassify(0.0);
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isfinite(0.0);
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isinf(0.0);
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isnan(0.0);
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isnormal(0.0);
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signbit(0.0);
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isgreater(0.0,0.0);
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isgreaterequal(0.0,0.0);
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isless(0.0,0.0);
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islessequal(0.0,0.0);
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islessgreater(0.0,0.0);
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islessgreater(0.0,0.0);
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isunordered(0.0,0.0);
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GCC_TRY_COMPILE_OR_LINK(
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[#include <math.h>
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volatile double d1, d2;
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volatile int i;],
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[i = fpclassify(d1);
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i = isfinite(d1);
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i = isinf(d1);
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i = isnan(d1);
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i = isnormal(d1);
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i = signbit(d1);
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i = isgreater(d1, d2);
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i = isgreaterequal(d1, d2);
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i = isless(d1, d2);
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i = islessequal(d1, d2);
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i = islessgreater(d1, d2);
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i = islessgreater(d1, d2);
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i = isunordered(d1, d2);
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],[ac_c99_math=yes], [ac_c99_math=no])
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])
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AC_MSG_RESULT($ac_c99_math)
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@ -798,46 +806,53 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
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ac_c99_complex=no;
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if test x"$ac_has_complex_h" = x"yes"; then
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AC_MSG_CHECKING([for ISO C99 support in <complex.h>])
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AC_TRY_COMPILE([#include <complex.h>],
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[typedef __complex__ float float_type; float_type tmpf;
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cabsf(tmpf);
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cargf(tmpf);
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ccosf(tmpf);
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ccoshf(tmpf);
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cexpf(tmpf);
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clogf(tmpf);
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csinf(tmpf);
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csinhf(tmpf);
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csqrtf(tmpf);
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ctanf(tmpf);
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ctanhf(tmpf);
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cpowf(tmpf, tmpf);
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typedef __complex__ double double_type; double_type tmpd;
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cabs(tmpd);
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carg(tmpd);
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ccos(tmpd);
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ccosh(tmpd);
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cexp(tmpd);
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clog(tmpd);
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csin(tmpd);
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csinh(tmpd);
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csqrt(tmpd);
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ctan(tmpd);
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ctanh(tmpd);
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cpow(tmpd, tmpd);
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typedef __complex__ long double ld_type; ld_type tmpld;
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cabsl(tmpld);
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cargl(tmpld);
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ccosl(tmpld);
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ccoshl(tmpld);
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cexpl(tmpld);
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clogl(tmpld);
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csinl(tmpld);
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csinhl(tmpld);
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csqrtl(tmpld);
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ctanl(tmpld);
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ctanhl(tmpld);
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cpowl(tmpld, tmpld);
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GCC_TRY_COMPILE_OR_LINK(
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[#include <complex.h>
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typedef __complex__ float float_type;
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typedef __complex__ double double_type;
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typedef __complex__ long double ld_type;
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volatile float_type tmpf;
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volatile double_type tmpd;
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volatile ld_type tmpld;
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volatile float f;
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volatile double d;
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volatile long double ld;],
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[f = cabsf(tmpf);
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f = cargf(tmpf);
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tmpf = ccosf(tmpf);
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tmpf = ccoshf(tmpf);
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tmpf = cexpf(tmpf);
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tmpf = clogf(tmpf);
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tmpf = csinf(tmpf);
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tmpf = csinhf(tmpf);
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tmpf = csqrtf(tmpf);
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tmpf = ctanf(tmpf);
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tmpf = ctanhf(tmpf);
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tmpf = cpowf(tmpf, tmpf);
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d = cabs(tmpd);
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d = carg(tmpd);
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tmpd = ccos(tmpd);
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tmpd = ccosh(tmpd);
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tmpd = cexp(tmpd);
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tmpd = clog(tmpd);
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tmpd = csin(tmpd);
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tmpd = csinh(tmpd);
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tmpd = csqrt(tmpd);
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tmpd = ctan(tmpd);
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tmpd = ctanh(tmpd);
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tmpd = cpow(tmpd, tmpd);
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ld = cabsl(tmpld);
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ld = cargl(tmpld);
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tmpld = ccosl(tmpld);
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tmpld = ccoshl(tmpld);
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tmpld = cexpl(tmpld);
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tmpld = clogl(tmpld);
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tmpld = csinl(tmpld);
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tmpld = csinhl(tmpld);
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tmpld = csqrtl(tmpld);
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tmpld = ctanl(tmpld);
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tmpld = ctanhl(tmpld);
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tmpld = cpowl(tmpld, tmpld);
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],[ac_c99_complex=yes], [ac_c99_complex=no])
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fi
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AC_MSG_RESULT($ac_c99_complex)
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@ -851,7 +866,8 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
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# Check for the existence in <stdio.h> of vscanf, et. al.
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AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
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AC_CACHE_VAL(ac_c99_stdio, [
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AC_TRY_COMPILE([#include <stdio.h>
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GCC_TRY_COMPILE_OR_LINK(
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[#include <stdio.h>
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#include <stdarg.h>
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void foo(char* fmt, ...)
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{
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@ -869,17 +885,24 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
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# Check for the existence in <stdlib.h> of lldiv_t, et. al.
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AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
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AC_CACHE_VAL(ac_c99_stdlib, [
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AC_TRY_COMPILE([#include <stdlib.h>],
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GCC_TRY_COMPILE_OR_LINK(
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[#include <stdlib.h>
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volatile float f;
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volatile long double ld;
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volatile unsigned long long ll;
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lldiv_t mydivt;],
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[char* tmp;
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strtof("gnu", &tmp);
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strtold("gnu", &tmp);
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strtoll("gnu", &tmp, 10);
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strtoull("gnu", &tmp, 10);
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llabs(10);
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lldiv(10,1);
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atoll("10");
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f = strtof("gnu", &tmp);
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ld = strtold("gnu", &tmp);
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ll = strtoll("gnu", &tmp, 10);
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ll = strtoull("gnu", &tmp, 10);
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ll = llabs(10);
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mydivt = lldiv(10,1);
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ll = mydivt.quot;
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ll = mydivt.rem;
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ll = atoll("10");
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_Exit(0);
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lldiv_t mydivt;],[ac_c99_stdlib=yes], [ac_c99_stdlib=no])
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],[ac_c99_stdlib=yes], [ac_c99_stdlib=no])
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])
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AC_MSG_RESULT($ac_c99_stdlib)
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@ -940,6 +963,7 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
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<complex.h>, <stdio.h>, and <stdlib.h> can be used or exposed.])
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fi
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CXXFLAGS="$ac_save_CXXFLAGS"
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AC_LANG_RESTORE
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fi
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442
libstdc++-v3/configure
vendored
442
libstdc++-v3/configure
vendored
@ -15436,6 +15436,11 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
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ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
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# Use -fno-exceptions so that the C driver can link these tests without
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# hitting undefined references to personality routines.
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ac_save_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS -fno-exceptions"
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# Check for the existence of <math.h> functions used if C99 is enabled.
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echo "$as_me:$LINENO: checking for ISO C99 support in <math.h>" >&5
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echo $ECHO_N "checking for ISO C99 support in <math.h>... $ECHO_C" >&6
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@ -15443,6 +15448,7 @@ echo $ECHO_N "checking for ISO C99 support in <math.h>... $ECHO_C" >&6
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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if test x$gcc_no_link = xyes; then
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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@ -15450,22 +15456,24 @@ cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <math.h>
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volatile double d1, d2;
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volatile int i;
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int
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main ()
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{
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fpclassify(0.0);
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isfinite(0.0);
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isinf(0.0);
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isnan(0.0);
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isnormal(0.0);
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signbit(0.0);
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isgreater(0.0,0.0);
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isgreaterequal(0.0,0.0);
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isless(0.0,0.0);
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islessequal(0.0,0.0);
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islessgreater(0.0,0.0);
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islessgreater(0.0,0.0);
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isunordered(0.0,0.0);
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i = fpclassify(d1);
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i = isfinite(d1);
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i = isinf(d1);
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i = isnan(d1);
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i = isnormal(d1);
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i = signbit(d1);
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i = isgreater(d1, d2);
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i = isgreaterequal(d1, d2);
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i = isless(d1, d2);
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i = islessequal(d1, d2);
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i = islessgreater(d1, d2);
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i = islessgreater(d1, d2);
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i = isunordered(d1, d2);
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;
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return 0;
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@ -15501,6 +15509,74 @@ sed 's/^/| /' conftest.$ac_ext >&5
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ac_c99_math=no
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fi
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rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
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else
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if test x$gcc_no_link = xyes; then
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{ { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
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echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <math.h>
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volatile double d1, d2;
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volatile int i;
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int
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main ()
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{
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i = fpclassify(d1);
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i = isfinite(d1);
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i = isinf(d1);
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i = isnan(d1);
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i = isnormal(d1);
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i = signbit(d1);
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i = isgreater(d1, d2);
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i = isgreaterequal(d1, d2);
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i = isless(d1, d2);
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i = islessequal(d1, d2);
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i = islessgreater(d1, d2);
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i = islessgreater(d1, d2);
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i = isunordered(d1, d2);
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;
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return 0;
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}
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_ACEOF
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rm -f conftest.$ac_objext conftest$ac_exeext
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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(eval $ac_link) 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } &&
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{ ac_try='test -z "$ac_cxx_werror_flag"
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|| test ! -s conftest.err'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
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(exit $ac_status); }; } &&
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{ ac_try='test -s conftest$ac_exeext'
|
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
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(exit $ac_status); }; }; then
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ac_c99_math=yes
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else
|
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echo "$as_me: failed program was:" >&5
|
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sed 's/^/| /' conftest.$ac_ext >&5
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|
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ac_c99_math=no
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fi
|
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rm -f conftest.err conftest.$ac_objext \
|
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conftest$ac_exeext conftest.$ac_ext
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fi
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fi
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|
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@ -15826,6 +15902,7 @@ done
|
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if test x"$ac_has_complex_h" = x"yes"; then
|
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echo "$as_me:$LINENO: checking for ISO C99 support in <complex.h>" >&5
|
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echo $ECHO_N "checking for ISO C99 support in <complex.h>... $ECHO_C" >&6
|
||||
if test x$gcc_no_link = xyes; then
|
||||
cat >conftest.$ac_ext <<_ACEOF
|
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/* confdefs.h. */
|
||||
_ACEOF
|
||||
@ -15833,48 +15910,54 @@ cat confdefs.h >>conftest.$ac_ext
|
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cat >>conftest.$ac_ext <<_ACEOF
|
||||
/* end confdefs.h. */
|
||||
#include <complex.h>
|
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typedef __complex__ float float_type;
|
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typedef __complex__ double double_type;
|
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typedef __complex__ long double ld_type;
|
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volatile float_type tmpf;
|
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volatile double_type tmpd;
|
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volatile ld_type tmpld;
|
||||
volatile float f;
|
||||
volatile double d;
|
||||
volatile long double ld;
|
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int
|
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main ()
|
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{
|
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typedef __complex__ float float_type; float_type tmpf;
|
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cabsf(tmpf);
|
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cargf(tmpf);
|
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ccosf(tmpf);
|
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ccoshf(tmpf);
|
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cexpf(tmpf);
|
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clogf(tmpf);
|
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csinf(tmpf);
|
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csinhf(tmpf);
|
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csqrtf(tmpf);
|
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ctanf(tmpf);
|
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ctanhf(tmpf);
|
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cpowf(tmpf, tmpf);
|
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typedef __complex__ double double_type; double_type tmpd;
|
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cabs(tmpd);
|
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carg(tmpd);
|
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ccos(tmpd);
|
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ccosh(tmpd);
|
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cexp(tmpd);
|
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clog(tmpd);
|
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csin(tmpd);
|
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csinh(tmpd);
|
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csqrt(tmpd);
|
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ctan(tmpd);
|
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ctanh(tmpd);
|
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cpow(tmpd, tmpd);
|
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typedef __complex__ long double ld_type; ld_type tmpld;
|
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cabsl(tmpld);
|
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cargl(tmpld);
|
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ccosl(tmpld);
|
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ccoshl(tmpld);
|
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cexpl(tmpld);
|
||||
clogl(tmpld);
|
||||
csinl(tmpld);
|
||||
csinhl(tmpld);
|
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csqrtl(tmpld);
|
||||
ctanl(tmpld);
|
||||
ctanhl(tmpld);
|
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cpowl(tmpld, tmpld);
|
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f = cabsf(tmpf);
|
||||
f = cargf(tmpf);
|
||||
tmpf = ccosf(tmpf);
|
||||
tmpf = ccoshf(tmpf);
|
||||
tmpf = cexpf(tmpf);
|
||||
tmpf = clogf(tmpf);
|
||||
tmpf = csinf(tmpf);
|
||||
tmpf = csinhf(tmpf);
|
||||
tmpf = csqrtf(tmpf);
|
||||
tmpf = ctanf(tmpf);
|
||||
tmpf = ctanhf(tmpf);
|
||||
tmpf = cpowf(tmpf, tmpf);
|
||||
d = cabs(tmpd);
|
||||
d = carg(tmpd);
|
||||
tmpd = ccos(tmpd);
|
||||
tmpd = ccosh(tmpd);
|
||||
tmpd = cexp(tmpd);
|
||||
tmpd = clog(tmpd);
|
||||
tmpd = csin(tmpd);
|
||||
tmpd = csinh(tmpd);
|
||||
tmpd = csqrt(tmpd);
|
||||
tmpd = ctan(tmpd);
|
||||
tmpd = ctanh(tmpd);
|
||||
tmpd = cpow(tmpd, tmpd);
|
||||
ld = cabsl(tmpld);
|
||||
ld = cargl(tmpld);
|
||||
tmpld = ccosl(tmpld);
|
||||
tmpld = ccoshl(tmpld);
|
||||
tmpld = cexpl(tmpld);
|
||||
tmpld = clogl(tmpld);
|
||||
tmpld = csinl(tmpld);
|
||||
tmpld = csinhl(tmpld);
|
||||
tmpld = csqrtl(tmpld);
|
||||
tmpld = ctanl(tmpld);
|
||||
tmpld = ctanhl(tmpld);
|
||||
tmpld = cpowl(tmpld, tmpld);
|
||||
|
||||
;
|
||||
return 0;
|
||||
@ -15910,6 +15993,104 @@ sed 's/^/| /' conftest.$ac_ext >&5
|
||||
ac_c99_complex=no
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
|
||||
else
|
||||
if test x$gcc_no_link = xyes; then
|
||||
{ { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
|
||||
echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
|
||||
{ (exit 1); exit 1; }; }
|
||||
fi
|
||||
cat >conftest.$ac_ext <<_ACEOF
|
||||
/* confdefs.h. */
|
||||
_ACEOF
|
||||
cat confdefs.h >>conftest.$ac_ext
|
||||
cat >>conftest.$ac_ext <<_ACEOF
|
||||
/* end confdefs.h. */
|
||||
#include <complex.h>
|
||||
typedef __complex__ float float_type;
|
||||
typedef __complex__ double double_type;
|
||||
typedef __complex__ long double ld_type;
|
||||
volatile float_type tmpf;
|
||||
volatile double_type tmpd;
|
||||
volatile ld_type tmpld;
|
||||
volatile float f;
|
||||
volatile double d;
|
||||
volatile long double ld;
|
||||
int
|
||||
main ()
|
||||
{
|
||||
f = cabsf(tmpf);
|
||||
f = cargf(tmpf);
|
||||
tmpf = ccosf(tmpf);
|
||||
tmpf = ccoshf(tmpf);
|
||||
tmpf = cexpf(tmpf);
|
||||
tmpf = clogf(tmpf);
|
||||
tmpf = csinf(tmpf);
|
||||
tmpf = csinhf(tmpf);
|
||||
tmpf = csqrtf(tmpf);
|
||||
tmpf = ctanf(tmpf);
|
||||
tmpf = ctanhf(tmpf);
|
||||
tmpf = cpowf(tmpf, tmpf);
|
||||
d = cabs(tmpd);
|
||||
d = carg(tmpd);
|
||||
tmpd = ccos(tmpd);
|
||||
tmpd = ccosh(tmpd);
|
||||
tmpd = cexp(tmpd);
|
||||
tmpd = clog(tmpd);
|
||||
tmpd = csin(tmpd);
|
||||
tmpd = csinh(tmpd);
|
||||
tmpd = csqrt(tmpd);
|
||||
tmpd = ctan(tmpd);
|
||||
tmpd = ctanh(tmpd);
|
||||
tmpd = cpow(tmpd, tmpd);
|
||||
ld = cabsl(tmpld);
|
||||
ld = cargl(tmpld);
|
||||
tmpld = ccosl(tmpld);
|
||||
tmpld = ccoshl(tmpld);
|
||||
tmpld = cexpl(tmpld);
|
||||
tmpld = clogl(tmpld);
|
||||
tmpld = csinl(tmpld);
|
||||
tmpld = csinhl(tmpld);
|
||||
tmpld = csqrtl(tmpld);
|
||||
tmpld = ctanl(tmpld);
|
||||
tmpld = ctanhl(tmpld);
|
||||
tmpld = cpowl(tmpld, tmpld);
|
||||
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
rm -f conftest.$ac_objext conftest$ac_exeext
|
||||
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
|
||||
(eval $ac_link) 2>conftest.er1
|
||||
ac_status=$?
|
||||
grep -v '^ *+' conftest.er1 >conftest.err
|
||||
rm -f conftest.er1
|
||||
cat conftest.err >&5
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); } &&
|
||||
{ ac_try='test -z "$ac_cxx_werror_flag"
|
||||
|| test ! -s conftest.err'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; } &&
|
||||
{ ac_try='test -s conftest$ac_exeext'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; }; then
|
||||
ac_c99_complex=yes
|
||||
else
|
||||
echo "$as_me: failed program was:" >&5
|
||||
sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
ac_c99_complex=no
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_objext \
|
||||
conftest$ac_exeext conftest.$ac_ext
|
||||
fi
|
||||
fi
|
||||
echo "$as_me:$LINENO: result: $ac_c99_complex" >&5
|
||||
echo "${ECHO_T}$ac_c99_complex" >&6
|
||||
@ -15928,6 +16109,7 @@ echo $ECHO_N "checking for ISO C99 support in <stdio.h>... $ECHO_C" >&6
|
||||
echo $ECHO_N "(cached) $ECHO_C" >&6
|
||||
else
|
||||
|
||||
if test x$gcc_no_link = xyes; then
|
||||
cat >conftest.$ac_ext <<_ACEOF
|
||||
/* confdefs.h. */
|
||||
_ACEOF
|
||||
@ -15982,6 +16164,68 @@ sed 's/^/| /' conftest.$ac_ext >&5
|
||||
ac_c99_stdio=no
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
|
||||
else
|
||||
if test x$gcc_no_link = xyes; then
|
||||
{ { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
|
||||
echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
|
||||
{ (exit 1); exit 1; }; }
|
||||
fi
|
||||
cat >conftest.$ac_ext <<_ACEOF
|
||||
/* confdefs.h. */
|
||||
_ACEOF
|
||||
cat confdefs.h >>conftest.$ac_ext
|
||||
cat >>conftest.$ac_ext <<_ACEOF
|
||||
/* end confdefs.h. */
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
void foo(char* fmt, ...)
|
||||
{
|
||||
va_list args; va_start(args, fmt);
|
||||
vfscanf(stderr, "%i", args);
|
||||
vscanf("%i", args);
|
||||
vsnprintf(fmt, 0, "%i", args);
|
||||
vsscanf(fmt, "%i", args);
|
||||
}
|
||||
int
|
||||
main ()
|
||||
{
|
||||
snprintf("12", 0, "%i");
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
rm -f conftest.$ac_objext conftest$ac_exeext
|
||||
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
|
||||
(eval $ac_link) 2>conftest.er1
|
||||
ac_status=$?
|
||||
grep -v '^ *+' conftest.er1 >conftest.err
|
||||
rm -f conftest.er1
|
||||
cat conftest.err >&5
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); } &&
|
||||
{ ac_try='test -z "$ac_cxx_werror_flag"
|
||||
|| test ! -s conftest.err'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; } &&
|
||||
{ ac_try='test -s conftest$ac_exeext'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; }; then
|
||||
ac_c99_stdio=yes
|
||||
else
|
||||
echo "$as_me: failed program was:" >&5
|
||||
sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
ac_c99_stdio=no
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_objext \
|
||||
conftest$ac_exeext conftest.$ac_ext
|
||||
fi
|
||||
|
||||
fi
|
||||
|
||||
@ -15995,6 +16239,7 @@ echo $ECHO_N "checking for ISO C99 support in <stdlib.h>... $ECHO_C" >&6
|
||||
echo $ECHO_N "(cached) $ECHO_C" >&6
|
||||
else
|
||||
|
||||
if test x$gcc_no_link = xyes; then
|
||||
cat >conftest.$ac_ext <<_ACEOF
|
||||
/* confdefs.h. */
|
||||
_ACEOF
|
||||
@ -16002,19 +16247,25 @@ cat confdefs.h >>conftest.$ac_ext
|
||||
cat >>conftest.$ac_ext <<_ACEOF
|
||||
/* end confdefs.h. */
|
||||
#include <stdlib.h>
|
||||
volatile float f;
|
||||
volatile long double ld;
|
||||
volatile unsigned long long ll;
|
||||
lldiv_t mydivt;
|
||||
int
|
||||
main ()
|
||||
{
|
||||
char* tmp;
|
||||
strtof("gnu", &tmp);
|
||||
strtold("gnu", &tmp);
|
||||
strtoll("gnu", &tmp, 10);
|
||||
strtoull("gnu", &tmp, 10);
|
||||
llabs(10);
|
||||
lldiv(10,1);
|
||||
atoll("10");
|
||||
f = strtof("gnu", &tmp);
|
||||
ld = strtold("gnu", &tmp);
|
||||
ll = strtoll("gnu", &tmp, 10);
|
||||
ll = strtoull("gnu", &tmp, 10);
|
||||
ll = llabs(10);
|
||||
mydivt = lldiv(10,1);
|
||||
ll = mydivt.quot;
|
||||
ll = mydivt.rem;
|
||||
ll = atoll("10");
|
||||
_Exit(0);
|
||||
lldiv_t mydivt;
|
||||
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
@ -16049,6 +16300,74 @@ sed 's/^/| /' conftest.$ac_ext >&5
|
||||
ac_c99_stdlib=no
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
|
||||
else
|
||||
if test x$gcc_no_link = xyes; then
|
||||
{ { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
|
||||
echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
|
||||
{ (exit 1); exit 1; }; }
|
||||
fi
|
||||
cat >conftest.$ac_ext <<_ACEOF
|
||||
/* confdefs.h. */
|
||||
_ACEOF
|
||||
cat confdefs.h >>conftest.$ac_ext
|
||||
cat >>conftest.$ac_ext <<_ACEOF
|
||||
/* end confdefs.h. */
|
||||
#include <stdlib.h>
|
||||
volatile float f;
|
||||
volatile long double ld;
|
||||
volatile unsigned long long ll;
|
||||
lldiv_t mydivt;
|
||||
int
|
||||
main ()
|
||||
{
|
||||
char* tmp;
|
||||
f = strtof("gnu", &tmp);
|
||||
ld = strtold("gnu", &tmp);
|
||||
ll = strtoll("gnu", &tmp, 10);
|
||||
ll = strtoull("gnu", &tmp, 10);
|
||||
ll = llabs(10);
|
||||
mydivt = lldiv(10,1);
|
||||
ll = mydivt.quot;
|
||||
ll = mydivt.rem;
|
||||
ll = atoll("10");
|
||||
_Exit(0);
|
||||
|
||||
;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
rm -f conftest.$ac_objext conftest$ac_exeext
|
||||
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
|
||||
(eval $ac_link) 2>conftest.er1
|
||||
ac_status=$?
|
||||
grep -v '^ *+' conftest.er1 >conftest.err
|
||||
rm -f conftest.er1
|
||||
cat conftest.err >&5
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); } &&
|
||||
{ ac_try='test -z "$ac_cxx_werror_flag"
|
||||
|| test ! -s conftest.err'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; } &&
|
||||
{ ac_try='test -s conftest$ac_exeext'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
|
||||
(eval $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; }; then
|
||||
ac_c99_stdlib=yes
|
||||
else
|
||||
echo "$as_me: failed program was:" >&5
|
||||
sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
ac_c99_stdlib=no
|
||||
fi
|
||||
rm -f conftest.err conftest.$ac_objext \
|
||||
conftest$ac_exeext conftest.$ac_ext
|
||||
fi
|
||||
|
||||
fi
|
||||
|
||||
@ -16386,6 +16705,7 @@ _ACEOF
|
||||
|
||||
fi
|
||||
|
||||
CXXFLAGS="$ac_save_CXXFLAGS"
|
||||
ac_ext=c
|
||||
ac_cpp='$CPP $CPPFLAGS'
|
||||
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
|
||||
@ -17305,7 +17625,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
|
||||
|
||||
# Fake what AC_TRY_COMPILE does. XXX Look at redoing this new-style.
|
||||
cat > conftest.$ac_ext << EOF
|
||||
#line 17308 "configure"
|
||||
#line 17628 "configure"
|
||||
int main()
|
||||
{
|
||||
// NB: _Atomic_word not necessarily int.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user