bpo-30104: configure now detects when cc is clang by vstinner · Pull Request #1233 · python/cpython
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@@ -6812,19 +6812,32 @@ then
WRAP="-fwrapv"
fi
# Clang also needs -fwrapv case $CC in *clang*) WRAP="-fwrapv" # bpo-30104: Python/dtoa.c requires to be build with # -fno-strict-aliasing to fix compiler issue on the # double/ULong[2] union using clang 4.0 and optimization level # -O2 or higher # https://bugs.llvm.org//show_bug.cgi?id=31928 ALIASING="-fno-strict-aliasing" cc_is_clang=1 ;; *) if $CC --version 2>&1 | grep -q clang then cc_is_clang=1 else cc_is_clang= fi esac
if test -n "${cc_is_clang}" then # Clang also needs -fwrapv WRAP="-fwrapv"
# bpo-30104: Python/dtoa.c requires to be build with # -fno-strict-aliasing to fix compiler issue on the # double/ULong[2] union using clang 4.0 and optimization level # -O2 or higher # https://bugs.llvm.org//show_bug.cgi?id=31928 ALIASING="-fno-strict-aliasing" fi
case $ac_cv_prog_cc_g in yes) if test "$Py_DEBUG" = 'true' ; then Expand Down
# Clang also needs -fwrapv case $CC in *clang*) WRAP="-fwrapv" # bpo-30104: Python/dtoa.c requires to be build with # -fno-strict-aliasing to fix compiler issue on the # double/ULong[2] union using clang 4.0 and optimization level # -O2 or higher # https://bugs.llvm.org//show_bug.cgi?id=31928 ALIASING="-fno-strict-aliasing" cc_is_clang=1 ;; *) if $CC --version 2>&1 | grep -q clang then cc_is_clang=1 else cc_is_clang= fi esac
if test -n "${cc_is_clang}" then # Clang also needs -fwrapv WRAP="-fwrapv"
# bpo-30104: Python/dtoa.c requires to be build with # -fno-strict-aliasing to fix compiler issue on the # double/ULong[2] union using clang 4.0 and optimization level # -O2 or higher # https://bugs.llvm.org//show_bug.cgi?id=31928 ALIASING="-fno-strict-aliasing" fi
case $ac_cv_prog_cc_g in yes) if test "$Py_DEBUG" = 'true' ; then Expand Down