From b00f3dcaa28e6954bdcfd192b002133c23514523 Mon Sep 17 00:00:00 2001
From: Matthieu Schaller <matthieu.schaller@durham.ac.uk>
Date: Mon, 28 May 2018 15:59:09 +0200
Subject: [PATCH] Make sure all the GNU builtins for malloc and friends are
switched off when compiling with tcmalloc and jemalloc.
---
configure.ac | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/configure.ac b/configure.ac
index 56018272de..836cdaf947 100644
--- a/configure.ac
+++ b/configure.ac
@@ -660,10 +660,13 @@ if test "x$with_tcmalloc" != "xno"; then
if test "$have_tcmalloc" = "yes"; then
TCMALLOC_LIBS="$tclibs"
- # These are recommended for GCC.
- if test "$ax_cv_c_compiler_vendor" = "gnu"; then
- CFLAGS="$CFLAGS -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free"
- fi
+ # Prevent compilers that replace the calls within built-ins (GNU 99) from doing so.
+ case "$ax_cv_c_compiler_vendor" in
+ intel | gnu | clang)
+ CFLAGS="$CFLAGS -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free"
+ ;;
+ esac
+
else
TCMALLOC_LIBS=""
fi
@@ -720,6 +723,14 @@ if test "x$with_jemalloc" != "xno"; then
if test "$have_jemalloc" = "yes"; then
JEMALLOC_LIBS="$jelibs"
+
+ # Prevent compilers that replace the regular calls within built-ins (GNU 99) from doing so.
+ case "$ax_cv_c_compiler_vendor" in
+ intel | gnu | clang)
+ CFLAGS="$CFLAGS -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free"
+ ;;
+ esac
+
else
JEMALLOC_LIBS=""
fi
--
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