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authorJonathan Wakely <jwakely@redhat.com>2016-02-08 15:22:32 +0000
committerJonathan Wakely <redi@gcc.gnu.org>2016-02-08 15:22:32 +0000
commitcc07da33ae9cf86c308f6a7858d7d8faa73d63e1 (patch)
treefdd4479f84dafab7923df3d8c5f4cdc7c72fbd36
parent5317b1be7eefe215ae67b8f65c8e7d8f54c6f2d2 (diff)
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Enable isinf/isnan checks for all targets
PR libstdc++/48891 * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Enable isinf and isnan checks for all targets except *-*-solaris2.* and ensure we find the libc math.h header not our own. * configure: Regenerate. From-SVN: r233214
-rw-r--r--libstdc++-v3/ChangeLog8
-rw-r--r--libstdc++-v3/acinclude.m49
-rwxr-xr-xlibstdc++-v3/configure9
3 files changed, 18 insertions, 8 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 7c5a9ca..1888702 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,11 @@
+2016-02-08 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/48891
+ * acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Enable isinf and isnan
+ checks for all targets except *-*-solaris2.* and ensure we find the
+ libc math.h header not our own.
+ * configure: Regenerate.
+
2016-02-05 Dominik Vogt <vogt@linux.vnet.ibm.com>
* config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt (FUNC):
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index 057b58e..e667ccc 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -2215,7 +2215,7 @@ AC_DEFUN([GLIBCXX_CHECK_MATH11_PROTO], [
fi
AC_MSG_RESULT([$glibcxx_cv_math11_overload])
;;
- *-*-*gnu* | *-*-aix* | *-*-hpux*)
+ *)
# 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>
@@ -2223,12 +2223,13 @@ AC_DEFUN([GLIBCXX_CHECK_MATH11_PROTO], [
AC_MSG_CHECKING([for obsolete isinf function in <math.h>])
AC_CACHE_VAL(glibcxx_cv_obsolete_isinf, [
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
- [#include <math.h>
+ [#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+ #include <math.h>
#undef isinf
namespace std {
using ::isinf;
- bool isinf(float);
- bool isinf(long double);
+ constexpr bool isinf(float);
+ constexpr bool isinf(long double);
}
using std::isinf;
bool b = isinf(0.0);
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index a919a3e..02bb312 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -18266,7 +18266,7 @@ fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_cv_math11_overload" >&5
$as_echo "$glibcxx_cv_math11_overload" >&6; }
;;
- *-*-*gnu* | *-*-aix* | *-*-hpux*)
+ *)
# 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>
@@ -18279,12 +18279,13 @@ else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-#include <math.h>
+#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+ #include <math.h>
#undef isinf
namespace std {
using ::isinf;
- bool isinf(float);
- bool isinf(long double);
+ constexpr bool isinf(float);
+ constexpr bool isinf(long double);
}
using std::isinf;
bool b = isinf(0.0);