config/

	Revert:
	2007-10-02  Richard Sandiford  <richard@codesourcery.com>
	* no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function.

libstdc++/
	Revert:
	2007-10-02  Richard Sandiford  <richard@codesourcery.com>
	* 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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@128972 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/config/ChangeLog b/config/ChangeLog
index 67763a2..089fc82 100644 (file)
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,9 @@
+2007-10-03  Kazu Hirata  <kazu@codesourcery.com>
+
+       Revert:
+       2007-10-02  Richard Sandiford  <richard@codesourcery.com>
+       * no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function.
+

 2007-10-02  Richard Sandiford  <richard@codesourcery.com>
 
        * no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function.
 2007-10-02  Richard Sandiford  <richard@codesourcery.com>
 
        * no-executables.m4 (GCC_TRY_COMPILE_OR_LINK): New function.

diff --git a/config/no-executables.m4 b/config/no-executables.m4
index c4d0b70..54e5a02 100644 (file)
--- a/config/no-executables.m4
+++ b/config/no-executables.m4
@@ -59,11 +59,3 @@ fi)
 
 m4_divert_pop()dnl
 ])# GCC_NO_EXECUTABLES
 
 m4_divert_pop()dnl
 ])# GCC_NO_EXECUTABLES

-
-# Use the strongest available test out of AC_TRY_COMPILE and AC_TRY_LINK.
-AC_DEFUN([GCC_TRY_COMPILE_OR_LINK],
-[if test x$gcc_no_link = xyes; then
-  AC_TRY_COMPILE([$1], [$2], [$3], [$4])
-else
-  AC_TRY_LINK([$1], [$2], [$3], [$4])
-fi])

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index a87645a..8350df8 100644 (file)
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,12 @@
+2007-10-03  Kazu Hirata  <kazu@codesourcery.com>
+
+       Revert:
+       2007-10-02  Richard Sandiford  <richard@codesourcery.com>
+       * 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.
+

 2007-10-02  Richard Sandiford  <richard@codesourcery.com>
 
        * acinclude.m4 (GLIBCXX_ENABLE_C99): Temporarily add
 2007-10-02  Richard Sandiford  <richard@codesourcery.com>
 
        * acinclude.m4 (GLIBCXX_ENABLE_C99): Temporarily add

diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index b0263ab..c26225e 100644 (file)
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -763,32 +763,24 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
   AC_LANG_SAVE
   AC_LANG_CPLUSPLUS
 
   AC_LANG_SAVE
   AC_LANG_CPLUSPLUS
 

-  # Use -fno-exceptions so that the C driver can link these tests without
-  # hitting undefined references to personality routines.
-  ac_save_CXXFLAGS="$CXXFLAGS"
-  CXXFLAGS="$CXXFLAGS -fno-exceptions"
-

   # Check for the existence of <math.h> functions used if C99 is enabled.
   AC_MSG_CHECKING([for ISO C99 support in <math.h>])
   AC_CACHE_VAL(ac_c99_math, [
   # Check for the existence of <math.h> functions used if C99 is enabled.
   AC_MSG_CHECKING([for ISO C99 support in <math.h>])
   AC_CACHE_VAL(ac_c99_math, [

-  GCC_TRY_COMPILE_OR_LINK(
-     [#include <math.h>
-      volatile double d1, d2;
-      volatile int i;],
-     [i = fpclassify(d1);
-      i = isfinite(d1);
-      i = isinf(d1);
-      i = isnan(d1);
-      i = isnormal(d1);
-      i = signbit(d1);
-      i = isgreater(d1, d2);
-      i = isgreaterequal(d1, d2);
-      i = isless(d1, d2);
-      i = islessequal(d1, d2);
-      i = islessgreater(d1, d2);
-      i = islessgreater(d1, d2);
-      i = isunordered(d1, d2);
-     ],[ac_c99_math=yes], [ac_c99_math=no])
+  AC_TRY_COMPILE([#include <math.h>],
+                [fpclassify(0.0);
+                 isfinite(0.0); 
+                 isinf(0.0);
+                 isnan(0.0);
+                 isnormal(0.0);
+                 signbit(0.0);
+                 isgreater(0.0,0.0);
+                 isgreaterequal(0.0,0.0);
+                 isless(0.0,0.0);
+                 islessequal(0.0,0.0);
+                 islessgreater(0.0,0.0);
+                 islessgreater(0.0,0.0);
+                 isunordered(0.0,0.0);
+                ],[ac_c99_math=yes], [ac_c99_math=no])

   ])
   AC_MSG_RESULT($ac_c99_math)
   if test x"$ac_c99_math" = x"yes"; then
   ])
   AC_MSG_RESULT($ac_c99_math)
   if test x"$ac_c99_math" = x"yes"; then


@@ -806,54 +798,47 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
   ac_c99_complex=no;
   if test x"$ac_has_complex_h" = x"yes"; then
     AC_MSG_CHECKING([for ISO C99 support in <complex.h>])
   ac_c99_complex=no;
   if test x"$ac_has_complex_h" = x"yes"; then
     AC_MSG_CHECKING([for ISO C99 support in <complex.h>])

-    GCC_TRY_COMPILE_OR_LINK(
-       [#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;],
-       [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);
-       ],[ac_c99_complex=yes], [ac_c99_complex=no])
+    AC_TRY_COMPILE([#include <complex.h>],
+                  [typedef __complex__ float float_type; float_type tmpf;
+                   cabsf(tmpf);
+                   cargf(tmpf);
+                   ccosf(tmpf);
+                   ccoshf(tmpf);
+                   cexpf(tmpf);
+                   clogf(tmpf);
+                   csinf(tmpf);
+                   csinhf(tmpf);
+                   csqrtf(tmpf);
+                   ctanf(tmpf);
+                   ctanhf(tmpf);
+                   cpowf(tmpf, tmpf);
+                   typedef __complex__ double double_type; double_type tmpd;
+                   cabs(tmpd);
+                   carg(tmpd);
+                   ccos(tmpd);
+                   ccosh(tmpd);
+                   cexp(tmpd);
+                   clog(tmpd);
+                   csin(tmpd);
+                   csinh(tmpd);
+                   csqrt(tmpd);
+                   ctan(tmpd);
+                   ctanh(tmpd);
+                   cpow(tmpd, tmpd);
+                   typedef __complex__ long double ld_type; ld_type tmpld;
+                   cabsl(tmpld);
+                   cargl(tmpld);
+                   ccosl(tmpld);
+                   ccoshl(tmpld);
+                   cexpl(tmpld);
+                   clogl(tmpld);
+                   csinl(tmpld);
+                   csinhl(tmpld);
+                   csqrtl(tmpld);
+                   ctanl(tmpld);
+                   ctanhl(tmpld);
+                   cpowl(tmpld, tmpld);
+                  ],[ac_c99_complex=yes], [ac_c99_complex=no])

   fi
   AC_MSG_RESULT($ac_c99_complex)
   if test x"$ac_c99_complex" = x"yes"; then
   fi
   AC_MSG_RESULT($ac_c99_complex)
   if test x"$ac_c99_complex" = x"yes"; then


@@ -866,43 +851,35 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
   # Check for the existence in <stdio.h> of vscanf, et. al.
   AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
   AC_CACHE_VAL(ac_c99_stdio, [
   # Check for the existence in <stdio.h> of vscanf, et. al.
   AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
   AC_CACHE_VAL(ac_c99_stdio, [

-  GCC_TRY_COMPILE_OR_LINK(
-     [#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);
-      }],
-     [snprintf("12", 0, "%i");],
-     [ac_c99_stdio=yes], [ac_c99_stdio=no])
+  AC_TRY_COMPILE([#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);
+                 }],
+                 [snprintf("12", 0, "%i");],
+                [ac_c99_stdio=yes], [ac_c99_stdio=no])

   ])
   AC_MSG_RESULT($ac_c99_stdio)
 
   # Check for the existence in <stdlib.h> of lldiv_t, et. al.
   AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
   AC_CACHE_VAL(ac_c99_stdlib, [
   ])
   AC_MSG_RESULT($ac_c99_stdio)
 
   # Check for the existence in <stdlib.h> of lldiv_t, et. al.
   AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
   AC_CACHE_VAL(ac_c99_stdlib, [

-  GCC_TRY_COMPILE_OR_LINK(
-     [#include <stdlib.h>
-      volatile float f;
-      volatile long double ld;
-      volatile unsigned long long ll;
-      lldiv_t mydivt;],
-     [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);
-      ],[ac_c99_stdlib=yes], [ac_c99_stdlib=no])
+  AC_TRY_COMPILE([#include <stdlib.h>],
+                 [char* tmp;
+                 strtof("gnu", &tmp);
+                 strtold("gnu", &tmp);
+                 strtoll("gnu", &tmp, 10);
+                 strtoull("gnu", &tmp, 10);
+                 llabs(10);
+                 lldiv(10,1);
+                 atoll("10");
+                 _Exit(0);
+                 lldiv_t mydivt;],[ac_c99_stdlib=yes], [ac_c99_stdlib=no])

   ])
   AC_MSG_RESULT($ac_c99_stdlib)
 
   ])
   AC_MSG_RESULT($ac_c99_stdlib)
 


@@ -963,7 +940,6 @@ AC_DEFUN([GLIBCXX_ENABLE_C99], [
     <complex.h>, <stdio.h>, and <stdlib.h> can be used or exposed.])
   fi
 
     <complex.h>, <stdio.h>, and <stdlib.h> can be used or exposed.])
   fi
 

-  CXXFLAGS="$ac_save_CXXFLAGS"

   AC_LANG_RESTORE
   fi   
 
   AC_LANG_RESTORE
   fi   
 

diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 772e6de..e42e1bb 100755 (executable)
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -15436,11 +15436,6 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 

-  # Use -fno-exceptions so that the C driver can link these tests without
-  # hitting undefined references to personality routines.
-  ac_save_CXXFLAGS="$CXXFLAGS"
-  CXXFLAGS="$CXXFLAGS -fno-exceptions"
-

   # Check for the existence of <math.h> functions used if C99 is enabled.
   echo "$as_me:$LINENO: checking for ISO C99 support in <math.h>" >&5
 echo $ECHO_N "checking for ISO C99 support in <math.h>... $ECHO_C" >&6
   # Check for the existence of <math.h> functions used if C99 is enabled.
   echo "$as_me:$LINENO: checking for ISO C99 support in <math.h>" >&5
 echo $ECHO_N "checking for ISO C99 support in <math.h>... $ECHO_C" >&6


@@ -15448,7 +15443,6 @@ echo $ECHO_N "checking for ISO C99 support in <math.h>... $ECHO_C" >&6
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 

-  if test x$gcc_no_link = xyes; then

   cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
   cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF


@@ -15456,24 +15450,22 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <math.h>
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <math.h>

-      volatile double d1, d2;
-      volatile int i;

 int
 main ()
 {
 int
 main ()
 {

-i = fpclassify(d1);
-      i = isfinite(d1);
-      i = isinf(d1);
-      i = isnan(d1);
-      i = isnormal(d1);
-      i = signbit(d1);
-      i = isgreater(d1, d2);
-      i = isgreaterequal(d1, d2);
-      i = isless(d1, d2);
-      i = islessequal(d1, d2);
-      i = islessgreater(d1, d2);
-      i = islessgreater(d1, d2);
-      i = isunordered(d1, d2);
+fpclassify(0.0);
+                 isfinite(0.0);
+                 isinf(0.0);
+                 isnan(0.0);
+                 isnormal(0.0);
+                 signbit(0.0);
+                 isgreater(0.0,0.0);
+                 isgreaterequal(0.0,0.0);
+                 isless(0.0,0.0);
+                 islessequal(0.0,0.0);
+                 islessgreater(0.0,0.0);
+                 islessgreater(0.0,0.0);
+                 isunordered(0.0,0.0);

 
   ;
   return 0;
 
   ;
   return 0;


@@ -15509,74 +15501,6 @@ sed 's/^/| /' conftest.$ac_ext >&5
 ac_c99_math=no
 fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_c99_math=no
 fi
 rm -f conftest.err conftest.$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.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <math.h>
-      volatile double d1, d2;
-      volatile int i;
-int
-main ()
-{
-i = fpclassify(d1);
-      i = isfinite(d1);
-      i = isinf(d1);
-      i = isnan(d1);
-      i = isnormal(d1);
-      i = signbit(d1);
-      i = isgreater(d1, d2);
-      i = isgreaterequal(d1, d2);
-      i = isless(d1, d2);
-      i = islessequal(d1, d2);
-      i = islessgreater(d1, d2);
-      i = islessgreater(d1, d2);
-      i = isunordered(d1, d2);
-
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$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 $ac_status); }; }; then
-  ac_c99_math=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-ac_c99_math=no
-fi
-rm -f conftest.err conftest.$ac_objext \
-      conftest$ac_exeext conftest.$ac_ext
-fi

 
 fi
 
 
 fi
 


@@ -15902,62 +15826,55 @@ done
   if test x"$ac_has_complex_h" = x"yes"; then
     echo "$as_me:$LINENO: checking for ISO C99 support in <complex.h>" >&5
 echo $ECHO_N "checking for ISO C99 support in <complex.h>... $ECHO_C" >&6
   if test x"$ac_has_complex_h" = x"yes"; then
     echo "$as_me:$LINENO: checking for ISO C99 support in <complex.h>" >&5
 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
+    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>
 /* 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 ()
 {
 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);
+typedef __complex__ float float_type; float_type tmpf;
+                   cabsf(tmpf);
+                   cargf(tmpf);
+                   ccosf(tmpf);
+                   ccoshf(tmpf);
+                   cexpf(tmpf);
+                   clogf(tmpf);
+                   csinf(tmpf);
+                   csinhf(tmpf);
+                   csqrtf(tmpf);
+                   ctanf(tmpf);
+                   ctanhf(tmpf);
+                   cpowf(tmpf, tmpf);
+                   typedef __complex__ double double_type; double_type tmpd;
+                   cabs(tmpd);
+                   carg(tmpd);
+                   ccos(tmpd);
+                   ccosh(tmpd);
+                   cexp(tmpd);
+                   clog(tmpd);
+                   csin(tmpd);
+                   csinh(tmpd);
+                   csqrt(tmpd);
+                   ctan(tmpd);
+                   ctanh(tmpd);
+                   cpow(tmpd, tmpd);
+                   typedef __complex__ long double ld_type; ld_type tmpld;
+                   cabsl(tmpld);
+                   cargl(tmpld);
+                   ccosl(tmpld);
+                   ccoshl(tmpld);
+                   cexpl(tmpld);
+                   clogl(tmpld);
+                   csinl(tmpld);
+                   csinhl(tmpld);
+                   csqrtl(tmpld);
+                   ctanl(tmpld);
+                   ctanhl(tmpld);
+                   cpowl(tmpld, tmpld);

 
   ;
   return 0;
 
   ;
   return 0;


@@ -15993,104 +15910,6 @@ sed 's/^/| /' conftest.$ac_ext >&5
 ac_c99_complex=no
 fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_c99_complex=no
 fi
 rm -f conftest.err conftest.$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}$ac_c99_complex" >&6
   fi
   echo "$as_me:$LINENO: result: $ac_c99_complex" >&5
 echo "${ECHO_T}$ac_c99_complex" >&6


@@ -16109,7 +15928,6 @@ echo $ECHO_N "checking for ISO C99 support in <stdio.h>... $ECHO_C" >&6
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 

-  if test x$gcc_no_link = xyes; then

   cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
   cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF


@@ -16117,15 +15935,15 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <stdio.h>
 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);
-      }
+                 #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 ()
 {
 int
 main ()
 {


@@ -16164,68 +15982,6 @@ sed 's/^/| /' conftest.$ac_ext >&5
 ac_c99_stdio=no
 fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_c99_stdio=no
 fi
 rm -f conftest.err conftest.$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
 
 
 fi
 


@@ -16239,7 +15995,6 @@ echo $ECHO_N "checking for ISO C99 support in <stdlib.h>... $ECHO_C" >&6
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 

-  if test x$gcc_no_link = xyes; then

   cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
   cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF


@@ -16247,25 +16002,19 @@ cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <stdlib.h>
 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;
 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);
-
+                 strtof("gnu", &tmp);
+                 strtold("gnu", &tmp);
+                 strtoll("gnu", &tmp, 10);
+                 strtoull("gnu", &tmp, 10);
+                 llabs(10);
+                 lldiv(10,1);
+                 atoll("10");
+                 _Exit(0);
+                 lldiv_t mydivt;

   ;
   return 0;
 }
   ;
   return 0;
 }


@@ -16300,74 +16049,6 @@ sed 's/^/| /' conftest.$ac_ext >&5
 ac_c99_stdlib=no
 fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_c99_stdlib=no
 fi
 rm -f conftest.err conftest.$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
 
 
 fi
 


@@ -16705,7 +16386,6 @@ _ACEOF
 
   fi
 
 
   fi
 

-  CXXFLAGS="$ac_save_CXXFLAGS"

   ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
   ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'


@@ -17625,7 +17305,7 @@ 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
 
   # Fake what AC_TRY_COMPILE does.  XXX Look at redoing this new-style.
     cat > conftest.$ac_ext << EOF

-#line 17628 "configure"
+#line 17308 "configure"

 int main()
 {
   // NB: _Atomic_word not necessarily int.
 int main()
 {
   // NB: _Atomic_word not necessarily int.