[gnome-multi-writer] trivial: Actually apply the warning flags

[Richard Hughes <rhughes src gnome org>]

commit 87f471f45b0498611a4febc709c99389233a5c09
Author: Richard Hughes <richard hughsie com>
Date:   Sat Aug 27 08:32:20 2016 +0100

    trivial: Actually apply the warning flags

 configure.ac     |   56 +++++++++++++++++++++++++++++++++++++----------------
 src/gmw-device.h |    1 -
 2 files changed, 39 insertions(+), 18 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index d9b7a5f..594df47 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,30 +30,52 @@ AC_SUBST(GETTEXT_PACKAGE)
 AC_DEFINE(GETTEXT_PACKAGE, "AC_PACKAGE_NAME", [foo])
 AM_GLIB_GNU_GETTEXT
 
-dnl -------------
-GNOME_COMPILE_WARNINGS([maximum],[
-       -Wmissing-declarations
+WARN_CFLAGS_EXTRA="
+       -Waggregate-return
+       -Warray-bounds
        -Wcast-align
-       -Wwrite-strings
-       -Wreturn-type
-       -Wformat-nonliteral
-       -Wmissing-format-attribute
        -Wclobbered
+       -Wdeclaration-after-statement
        -Wempty-body
+       -Wextra
+       -Wformat=2
+       -Wformat-nonliteral
+       -Wformat-security
+       -Wformat-signedness
        -Wignored-qualifiers
-       -Wsign-compare
-       -Wtype-limits
-       -Wuninitialized
-       -Waggregate-return
-       -Wdeclaration-after-statement
-       -Wshadow
-       -Wno-strict-aliasing
+       -Wimplicit-function-declaration
+       -Winit-self
        -Winline
+       -Wmissing-declarations
+       -Wmissing-format-attribute
+       -Wmissing-include-dirs
+       -Wmissing-noreturn
        -Wmissing-parameter-type
-       -Woverride-init
+       -Wmissing-prototypes
+       -Wnested-externs
        -Wno-discarded-qualifiers
-       -Wformat-signedness
-])
+       -Wno-missing-field-initializers
+       -Wno-strict-aliasing
+       -Wno-suggest-attribute=format
+       -Wno-unused-parameter
+       -Wold-style-definition
+       -Woverride-init
+       -Wpacked
+       -Wpointer-arith
+       -Wredundant-decls
+       -Wreturn-type
+       -Wshadow
+       -Wsign-compare
+       -Wstrict-aliasing
+       -Wstrict-prototypes
+       -Wswitch-default
+       -Wtype-limits
+       -Wundef
+       -Wuninitialized
+       -Wunused-but-set-variable
+       -Wwrite-strings"
+AX_APPEND_COMPILE_FLAGS([$WARN_CFLAGS_EXTRA], [WARN_CFLAGS])
+AC_SUBST(WARN_CFLAGS)
 
 dnl ---------------------------------------------------------------------------
 dnl - Check library dependencies
diff --git a/src/gmw-device.h b/src/gmw-device.h
index f76abf0..0ea832b 100644
--- a/src/gmw-device.h
+++ b/src/gmw-device.h
@@ -45,7 +45,6 @@ typedef enum {
        GMW_DEVICE_STATE_LAST
 } GmwDeviceState;
 
-GType           gmw_device_get_type            (void);
 GmwDevice      *gmw_device_new                 (void);
 const gchar    *gmw_device_get_icon            (GmwDevice      *device);
 gchar          *gmw_device_get_description     (GmwDevice      *device);