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-rw-r--r--m4/elm_quicklaunch.m424
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1dnl Copyright (C) 2013 Cedric Bail <cedric dot bail at samsung dot com>
2dnl That code is public domain and can be freely used or copied
3
4dnl Macro that check if -pie -rdynamic can be given to ld
5
6dnl Usage: ELM_QUICKLAUNCH
7dnl add -pie -rdynamic to LDFLAGS and -fpie to CFLAGS
8
9AC_DEFUN([ELM_QUICKLAUNCH],
10[
11AC_MSG_CHECKING([If the compiler has what it takes to do quicklaunch (-pie -rdynamic)])
12old_LDFLAGS="$LDFLAGS"
13old_CFLAGS="$CFLAGS"
14
15LDFLAGS="$LDFLAGS -pie -rdynamic"
16CFLAGS="$CFLAGS -fpie"
17
18AC_LINK_IFELSE([AC_LANG_SOURCE([int main(){}])],
19 [AC_MSG_RESULT([yes])],
20 [LDFLAGS="$old_LDFLAGS"
21 CFLAGS="$old_CFLAGS"
22 AC_MSG_RESULT([no])
23 ])
24])