diff options
Diffstat (limited to 'toolchain/glibc/patches/2.26/0001-Do-not-use-__builtin_types_compatible_p-in-C-mode-bu.patch')
| -rw-r--r-- | toolchain/glibc/patches/2.26/0001-Do-not-use-__builtin_types_compatible_p-in-C-mode-bu.patch | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/toolchain/glibc/patches/2.26/0001-Do-not-use-__builtin_types_compatible_p-in-C-mode-bu.patch b/toolchain/glibc/patches/2.26/0001-Do-not-use-__builtin_types_compatible_p-in-C-mode-bu.patch deleted file mode 100644 index 27a785e31..000000000 --- a/toolchain/glibc/patches/2.26/0001-Do-not-use-__builtin_types_compatible_p-in-C-mode-bu.patch +++ /dev/null @@ -1,50 +0,0 @@ -From f7439f9b1089e17b6721f28e228682831a2f0135 Mon Sep 17 00:00:00 2001 -From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com> -Date: Mon, 21 Aug 2017 14:23:27 +0200 -Subject: [PATCH] Do not use __builtin_types_compatible_p in C++ mode (bug - 21930) - -The logic to define isinf for float128 depends on the availability of -__builtin_types_compatible_p, which is only available in C mode, -however, the conditionals do not check for C or C++ mode. This lead to -an error in libstdc++ configure, as reported by bug 21930. - -This patch adds a conditional for C mode in the definition of isinf for -float128. No definition is provided in C++ mode, since libstdc++ -headers undefine isinf. - -Tested for powerpc64le (glibc test suite and libstdc++-v3 configure). - - [BZ #21930] - * math/math.h (isinf): Check if in C or C++ mode before using - __builtin_types_compatible_p, since this is a C mode feature. - -(cherry picked from commit 47a67213a9f51c5f8816d240500b10db605d8b77) -[Romain rebase on glibc 2.26] -Signed-off-by: Romain Naour <romain.naour@gmail.com> ---- - math/math.h | 8 ++++++-- - 1 file changed, 6 insertions(+), 2 deletions(-) - -diff --git a/math/math.h b/math/math.h -index e217080..dea8dbe 100644 ---- a/math/math.h -+++ b/math/math.h -@@ -442,8 +442,12 @@ enum - - /* Return nonzero value if X is positive or negative infinity. */ - # if __HAVE_DISTINCT_FLOAT128 && !__GNUC_PREREQ (7,0) \ -- && !defined __SUPPORT_SNAN__ -- /* __builtin_isinf_sign is broken for float128 only before GCC 7.0. */ -+ && !defined __SUPPORT_SNAN__ && !defined __cplusplus -+ /* Since __builtin_isinf_sign is broken for float128 before GCC 7.0, -+ use the helper function, __isinff128, with older compilers. This is -+ only provided for C mode, because in C++ mode, GCC has no support -+ for __builtin_types_compatible_p (and when in C++ mode, this macro is -+ not used anyway, because libstdc++ headers undefine it). */ - # define isinf(x) \ - (__builtin_types_compatible_p (__typeof (x), _Float128) \ - ? __isinff128 (x) : __builtin_isinf_sign (x)) --- -2.9.5 - |