This is jemalloc-5.2.0-gentoo-fixups.patch, rebased on top of upstream commit
https://github.com/jemalloc/jemalloc/commit/ed5fc14b28ca62a6.
From: Jory Pratt <anarchy@gentoo.org>
Date: Tue, 23 Apr 2019 10:04:19 -0500
Subject: [PATCH] Don't override user cflags, disable html_doc from being
 installed

Signed-off-by: Jory Pratt <anarchy@gentoo.org>
--- a/Makefile.in
+++ b/Makefile.in
@@ -603,7 +603,7 @@ install_doc_man: build_doc_man
 	$(INSTALL) -v -m 644 $$d $(MANDIR)/man3; \
 done
 
-install_doc: install_doc_html install_doc_man
+install_doc: install_doc_man
 
 install: install_bin install_include install_lib
 
--- a/configure.ac
+++ b/configure.ac
@@ -1220,21 +1220,6 @@ if test "x$enable_debug" = "x1" ; then
 fi
 AC_SUBST([enable_debug])
 
-dnl Only optimize if not debugging.
-if test "x$enable_debug" = "x0" ; then
-  if test "x$GCC" = "xyes" ; then
-    JE_CFLAGS_ADD([-O3])
-    JE_CXXFLAGS_ADD([-O3])
-    JE_CFLAGS_ADD([-funroll-loops])
-  elif test "x$je_cv_msvc" = "xyes" ; then
-    JE_CFLAGS_ADD([-O2])
-    JE_CXXFLAGS_ADD([-O2])
-  else
-    JE_CFLAGS_ADD([-O])
-    JE_CXXFLAGS_ADD([-O])
-  fi
-fi
-
 dnl Enable statistics calculation by default.
 AC_ARG_ENABLE([stats],
   [AS_HELP_STRING([--disable-stats],