elementary: Build with -Wall -W

Signed-off-by: Mike McCormack <mj.mccormack@samsung.com>

SVN revision: 60794

legacy/elementary/configure.ac

@@ -177,6 +177,12 @@ dnl managed by evil
 esac
 AM_CONDITIONAL([BUILD_RUN], [test "x$have_socket" = "xyes"])
 
+m4_ifdef([v_mic],
+   [
+    EFL_COMPILER_FLAG([-Wall])
+    EFL_COMPILER_FLAG([-W])
+   ])
+
 have_fork="no"
 want_quicklaunch="auto"
 AC_ARG_ENABLE([quick-launch],

legacy/elementary/m4/efl_compiler_flag.m4

@@ -0,0 +1,57 @@
+dnl Copyright (C) 2010 Vincent Torri <vtorri at univ-evry dot fr>
+dnl                and Albin Tonnerre <albin dot tonnerre at gmail dot com>
+dnl That code is public domain and can be freely used or copied.
+
+dnl Macro that checks if a compiler flag is supported by the compiler.
+
+dnl Usage: EFL_COMPILER_FLAG(flag)
+dnl flag is added to CFLAGS if supported.
+
+AC_DEFUN([EFL_COMPILER_FLAG],
+[
+
+CFLAGS_save="${CFLAGS}"
+CFLAGS="${CFLAGS} $1"
+  
+AC_LANG_PUSH([C])
+AC_MSG_CHECKING([whether the compiler supports $1])
+
+AC_COMPILE_IFELSE(
+   [AC_LANG_PROGRAM([[]])],
+   [have_flag="yes"],
+   [have_flag="no"])
+AC_MSG_RESULT([${have_flag}])
+
+if test "x${have_flag}" = "xno" ; then
+   CFLAGS="${CFLAGS_save}"
+fi
+AC_LANG_POP([C])
+
+])
+
+dnl Macro that checks if a linker flag is supported by the compiler.
+
+dnl Usage: EFL_LINKER_FLAG(flag)
+dnl flag is added to LDFLAGS if supported (will be passed to ld anyway).
+
+AC_DEFUN([EFL_LINKER_FLAG],
+[
+
+LDFLAGS_save="${LDFLAGS}"
+LDFLAGS="${LDFLAGS} $1"
+  
+AC_LANG_PUSH([C])
+AC_MSG_CHECKING([whether the compiler supports $1])
+
+AC_LINK_IFELSE(
+   [AC_LANG_PROGRAM([[]])],
+   [have_flag="yes"],
+   [have_flag="no"])
+AC_MSG_RESULT([${have_flag}])
+
+if test "x${have_flag}" = "xno" ; then
+   LDFLAGS="${LDFLAGS_save}"
+fi
+AC_LANG_POP([C])
+
+])