Add workaround for missing 'restrict' keyword.
Add a cpp #define that removes 'restrict' keyword usage unless the
compiler definitely supports C99. As written, 'restrict' is only
enabled if the compiler supports the -std=gnu99 option (e.g. gcc and
llvm).
Reported by Tobias Hieta.
diff --git a/configure.ac b/configure.ac
index a80c05d..938c019 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,9 @@
]], [[
return 0;
]])],
+ [je_cv_cflags_appended=$1]
AC_MSG_RESULT([yes]),
+ [je_cv_cflags_appended=]
AC_MSG_RESULT([no])
[CFLAGS="${TCFLAGS}"]
)
@@ -128,6 +130,9 @@
no_CFLAGS="yes"
if test "x$GCC" = "xyes" ; then
JE_CFLAGS_APPEND([-std=gnu99])
+ if test "x$je_cv_cflags_appended" = "x-std=gnu99" ; then
+ AC_DEFINE_UNQUOTED([JEMALLOC_HAS_RESTRICT])
+ fi
JE_CFLAGS_APPEND([-Wall])
JE_CFLAGS_APPEND([-pipe])
JE_CFLAGS_APPEND([-g3])