1 files changed, 23 insertions, 0 deletions
diff --git a/contrib/dlmalloc/Makefile.am b/contrib/dlmalloc/Makefile.am
new file mode 100644
index 0000000..e575683
--- /dev/null
+++ b/contrib/dlmalloc/Makefile.am
@@ -0,0 +1,23 @@
+# Source: http://gee.cs.oswego.edu/dl/html/malloc.html
+#
+# FIXME: On FreeBSD, we might implement a compatible mremap() based on the BSD mremap() and pass
+# in -DHAVE_MREMAP=1 -DMREMAP=mremap_bsd. We'll have to add a declaration to malloc.c or
+# use -include mremap_bsd.h in CPPFLAGS.
+#
+# FIXME: It may be advisable to add malloc.c directly to the programs' SOURCES variable
+# for increased portability. There is also AC_LIBOBJ, but it's usually for defining sources of
+# replacement libraries.
+
+AM_CPPFLAGS = -DINSECURE='defined(NDEBUG)' -DNO_MALLINFO=1 -DNO_MALLOC_STATS=1 \
+              -DUSE_LOCKS=1 -DUSE_DL_PREFIX
+
+# FIXME: This optimization is still broken as of GCC v9.3.0.
+# This is a known GCC bug, triggered by memset() in calloc().
+# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93213
+# FIXME: This must not be passed on Clang
+AM_CFLAGS = -fno-optimize-strlen
+
+noinst_LTLIBRARIES = libdlmalloc.la
+if REPLACE_MALLOC
+libdlmalloc_la_SOURCES = malloc.c malloc.h
+endif