From 20a30922fbf6ba14e250ca649239af115dbbe7b0 Mon Sep 17 00:00:00 2001 From: fanquake Date: Sun, 19 Apr 2020 20:20:06 +0800 Subject: doc: note why we can't use thread_local with glibc back compat --- configure.ac | 3 +++ 1 file changed, 3 insertions(+) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index 4c9902efc6..77cd23c0b0 100644 --- a/configure.ac +++ b/configure.ac @@ -861,6 +861,9 @@ AC_LINK_IFELSE([AC_LANG_SOURCE([ ] ) +dnl thread_local is currently disabled when building with glibc back compat. +dnl Our minimum supported glibc is 2.17, however support for thread_local +dnl did not arrive in glibc until 2.18. if test "x$use_thread_local" = xyes || { test "x$use_thread_local" = xauto && test "x$use_glibc_compat" = xno; }; then TEMP_LDFLAGS="$LDFLAGS" LDFLAGS="$TEMP_LDFLAGS $PTHREAD_CFLAGS" -- cgit v1.2.3