Use AC_DEFINE for defining NO_GETCONTEXT in configure

(code refactoring of commit 7c13fb8)

* configure.ac [!ac_cv_func_getcontext]: Use AC_DEFINE(NO_GETCONTEXT)
instead of directly adding -D NO_GETCONTEXT to CFLAGS.

diff --git a/configure.ac b/configure.ac
index 093dbeac684a6e4bba8cded069c7d128d72bd5e8..e944b519230a1a18824cb2a271ed7818c54d3f6b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -458,8 +458,9 @@ fi
 
 # Check for getcontext (uClibc can be configured without it, for example)
 AC_CHECK_FUNCS([getcontext])
-AS_IF([test "$ac_cv_func_getcontext" = "no"],
-      [CFLAGS="$CFLAGS -DNO_GETCONTEXT"])
+if test "$ac_cv_func_getcontext" = "no"; then
+  AC_DEFINE([NO_GETCONTEXT], [1], [Missing getcontext()])
+fi
 
 case "$host" in
 # While IRIX 6 has libdl for the O32 and N32 ABIs, it's missing for N64