build: add --disable-fatal-warnings configure option

It's reasonable to build from git, but not want to turn all compiler
warnings into fatal errors.  For example, GNOME's jhbuild helps people
get newer versions of software than came from their distribution, but
they may not necessarily want to hack on it.

diff --git a/common b/common
index e4a9407..17fa4ab 160000 (submodule)
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit e4a9407a51803016bab9918b03e2034981886bdb
+Subproject commit 17fa4abf49d31cf5dcc2994bdbaa86e45a3fb69f

diff --git a/configure.ac b/configure.ac
index 7a4d052..90daf07 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -74,6 +74,8 @@ AG_GST_GETTEXT([gstreamer-$GST_MAJORMINOR])
 
 dnl *** check for arguments to configure ***
 
+AG_GST_ARG_DISABLE_FATAL_WARNINGS
+
 dnl subsystems - can influence other decisions so needs to be high up
 dnl we need to AM_CONDITIONAL them here for automake 1.6.x compatibility
 AG_GST_CHECK_SUBSYSTEM_DISABLE(GST_DEBUG,[debugging subsystem])
@@ -646,7 +648,7 @@ if test "x${GST_DISABLE_GST_DEBUG}" = "xyes"; then
 fi
 
 dnl define an ERROR_CFLAGS Makefile variable
-AG_GST_SET_ERROR_CFLAGS($GST_GIT, [-Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wundef -Wwrite-strings -Wformat-nonliteral -Wformat-security -Wold-style-definition -Winit-self -Wmissing-include-dirs -Waddress -Waggregate-return -Wno-multichar -Wnested-externs $NO_WARNINGS])
+AG_GST_SET_ERROR_CFLAGS($FATAL_WARNINGS, [-Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wundef -Wwrite-strings -Wformat-nonliteral -Wformat-security -Wold-style-definition -Winit-self -Wmissing-include-dirs -Waddress -Waggregate-return -Wno-multichar -Wnested-externs $NO_WARNINGS])
 
 dnl define correct level for debugging messages
 AG_GST_SET_LEVEL_DEFAULT($GST_GIT)