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Enable ifunc checks on FreeBSD 12+ #12288

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Enable ifunc checks on FreeBSD 12+ #12288

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10 changes: 6 additions & 4 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -568,10 +568,12 @@ dnl Checks for GCC function attributes on all systems except ones without glibc
dnl Fix for these systems is already included in GCC 7, but not on GCC 6.
dnl
dnl At least some versions of FreeBSD seem to have buggy ifunc support, see
dnl bug #77284. Conservatively don't use ifuncs on FreeBSD.
AS_CASE([$host_alias], [*-*-*android*|*-*-*uclibc*|*-*-*musl*|*freebsd*|*openbsd*], [true], [
AX_GCC_FUNC_ATTRIBUTE([ifunc])
AX_GCC_FUNC_ATTRIBUTE([target])
dnl bug #77284. Conservatively don't use ifuncs on FreeBSD prior to version 12.
AS_CASE([$host_alias], [*-*-*android*|*-*-*uclibc*|*-*-*musl*|*openbsd*], [true], [
if test "`uname -s 2>/dev/null`" != "FreeBSD" || test "`uname -U 2>/dev/null`" -ge 1200000; then
AX_GCC_FUNC_ATTRIBUTE([ifunc])
AX_GCC_FUNC_ATTRIBUTE([target])
fi
])

dnl Check for IPv6 support.
Expand Down