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Diffstat (limited to 'm4/elm_quicklaunch.m4')
| -rw-r--r-- | m4/elm_quicklaunch.m4 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/m4/elm_quicklaunch.m4 b/m4/elm_quicklaunch.m4 new file mode 100644 index 0000000000..3db9945f02 --- /dev/null +++ b/m4/elm_quicklaunch.m4 @@ -0,0 +1,24 @@ +dnl Copyright (C) 2013 Cedric Bail <cedric dot bail at samsung dot com> +dnl That code is public domain and can be freely used or copied + +dnl Macro that check if -pie -rdynamic can be given to ld + +dnl Usage: ELM_QUICKLAUNCH +dnl add -pie -rdynamic to LDFLAGS and -fpie to CFLAGS + +AC_DEFUN([ELM_QUICKLAUNCH], +[ +AC_MSG_CHECKING([If the compiler as what it takes to do quicklaunch (-pie -rdynamic)]) +old_LDFLAGS="$LDFLAGS" +old_CFLAGS="$CFLAGS" + +LDFLAGS="$LDFLAGS -pie -rdynamic" +CFLAGS="$CFLAGS -fpie" + +AC_LINK_IFELSE([AC_LANG_SOURCE([int main(){}])], + [AC_MSG_RESULT([yes])], + [LDFLAGS="$old_LDFLAGS" + CFLAGS="$old_CFLAGS" + AC_MSG_RESULT([no]) + ]) +]) |