Add config option to use dlmalloc instead of mheap

[vpp.git] / src / examples / sample-plugin / configure.ac

diff --git a/src/examples/sample-plugin/configure.ac b/src/examples/sample-plugin/configure.ac
index 204da2f..57ec6ee 100644 (file)
--- a/src/examples/sample-plugin/configure.ac
+++ b/src/examples/sample-plugin/configure.ac
@@ -6,6 +6,39 @@ AC_PREFIX_DEFAULT([/usr])
 
 AC_PROG_CC
 
+# Check if compiler supports specific flag
+AC_DEFUN([CC_CHECK_FLAG],
+[
+  AC_MSG_CHECKING([if $CC supports $1])
+  AC_LANG_PUSH([C])
+  ac_saved_cflags="$CFLAGS"
+  CFLAGS="-Werror $1"
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
+  [cc_flag_check=yes],
+  [cc_flag_check=no]
+)
+  AC_MSG_RESULT([$cc_flag_check])
+  CFLAGS="$ac_saved_cflags"
+  AC_LANG_POP([C])
+])
+
+AC_DEFUN([ENABLE_ARG],
+[
+  AC_ARG_ENABLE($1,
+    AC_HELP_STRING(patsubst([--enable-$1],[_],[-]), $2),
+    [enable_$1=yes n_enable_$1=1],
+    [enable_$1=no n_enable_$1=0])
+  AM_CONDITIONAL(m4_toupper(ENABLE_$1), test "$enable_$1" = "yes")
+  m4_append([list_of_enabled], [$1], [, ])
+])
+
+ENABLE_ARG(dlmalloc,    [Enable dlmalloc])
+AC_SUBST(DLMALLOC,              [-DUSE_DLMALLOC=${n_enable_dlmalloc}])
+
+CC_CHECK_FLAG("-Wno-address-of-packed-member")
+AS_IF([test "$cc_flag_check" = yes],
+       [CFLAGS="${CFLAGS} -Wno-address-of-packed-member"], [])
+
 AC_OUTPUT([Makefile])
 
 AC_CONFIG_MACRO_DIR([m4])