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-rw-r--r--m4/elm_quicklaunch.m424
1 files changed, 24 insertions, 0 deletions
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+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([int main(){}],
+ [AC_MSG_RESULT([yes])],
+ [LDFLAGS="$old_LDFLAGS"
+ CFLAGS="$old_CFLAGS"
+ AC_MSG_RESULT([no])
+ ])
+])