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* [ptxdist] [PATCH] Example minimal project demonstrating glib compile failure with -Wcast-qual
@ 2015-10-30 15:47 jon
  0 siblings, 0 replies; only message in thread
From: jon @ 2015-10-30 15:47 UTC (permalink / raw)
  To: ptxdist; +Cc: Jon Ringle

From: Jon Ringle <jringle@gridpoint.com>

This minimal project will fail to compile with the following errors due to
 -Werror and -Wcast-qual

 ------------------------
 target: glibtest.compile
 ------------------------

make[1]: Entering directory `/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/build-target/glibtest-1-build'
  CC       glibtest.o
In file included from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/gio.h:164:0,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/libnm/nm-types.h:24,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/libnm/nm-object.h:29,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/libnm/nm-access-point.h:29,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/libnm/NetworkManager.h:26,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/build-target/glibtest-1/glibtest.c:2:
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/glistmodel.h: In function 'G_LIST_MODEL':
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/glistmodel.h:36:376: error: cast discards '__attribute__((const))' qualifier from pointer target type [-Werror=cast-qual]
 G_DECLARE_INTERFACE(GListModel, g_list_model, G, LIST_MODEL, GObject)
                                                                                                                                                                                                                                                                                                                                                                                        ^
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/glistmodel.h: In function 'G_IS_LIST_MODEL':
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/glistmodel.h:36:544: error: cast discards '__attribute__((const))' qualifier from pointer target type [-Werror=cast-qual]
 G_DECLARE_INTERFACE(GListModel, g_list_model, G, LIST_MODEL, GObject)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ^
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/glistmodel.h: In function 'G_LIST_MODEL_GET_IFACE':
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/glistmodel.h:36:923: error: cast discards '__attribute__((const))' qualifier from pointer target type [-Werror=cast-qual]
 G_DECLARE_INTERFACE(GListModel, g_list_model, G, LIST_MODEL, GObject)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           ^
In file included from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/gio.h:165:0,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/libnm/nm-types.h:24,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/libnm/nm-object.h:29,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/libnm/nm-access-point.h:29,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/libnm/NetworkManager.h:26,
                 from /home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/build-target/glibtest-1/glibtest.c:2:
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/gliststore.h: In function 'G_LIST_STORE':
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/gliststore.h:36:382: error: cast discards '__attribute__((const))' qualifier from pointer target type [-Werror=cast-qual]
 G_DECLARE_FINAL_TYPE(GListStore, g_list_store, G, LIST_STORE, GObject)
                                                                                                                                                                                                                                                                                                                                                                                              ^
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/gliststore.h: In function 'G_IS_LIST_STORE':
/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/sysroot-target/usr/include/glib-2.0/gio/gliststore.h:36:550: error: cast discards '__attribute__((const))' qualifier from pointer target type [-Werror=cast-qual]
 G_DECLARE_FINAL_TYPE(GListStore, g_list_store, G, LIST_STORE, GObject)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      ^
cc1: all warnings being treated as errors
make[1]: *** [glibtest.o] Error 1
make[1]: Leaving directory `/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/build-target/glibtest-1-build'
make: *** [/home/local/GRIDPOINT/jringle/code/gpec/ec1k-rootfs/platform-EC1K/state/glibtest.compile] Error 2
---
 local_src/glibtest/Makefile.am  |  27 +++++++++
 local_src/glibtest/autogen.sh   |  22 +++++++
 local_src/glibtest/configure.ac |  68 ++++++++++++++++++++++
 local_src/glibtest/glibtest.c   |   9 +++
 rules/glibtest.in               |   9 +++
 rules/glibtest.make             | 123 ++++++++++++++++++++++++++++++++++++++++
 6 files changed, 258 insertions(+)
 create mode 100644 local_src/glibtest/Makefile.am
 create mode 100755 local_src/glibtest/autogen.sh
 create mode 100644 local_src/glibtest/configure.ac
 create mode 100644 local_src/glibtest/glibtest.c
 create mode 100644 rules/glibtest.in
 create mode 100644 rules/glibtest.make

diff --git a/local_src/glibtest/Makefile.am b/local_src/glibtest/Makefile.am
new file mode 100644
index 0000000..aeeec78
--- /dev/null
+++ b/local_src/glibtest/Makefile.am
@@ -0,0 +1,27 @@
+bin_PROGRAMS = \
+	glibtest
+
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/include \
+	-I$(top_builddir)/include \
+	$(GLIB_CFLAGS) \
+	$(NM_CFLAGS)
+
+EXTRA_DIST = \
+	autogen.sh
+
+MAINTAINERCLEANFILES = \
+	configure \
+	aclocal.m4 \
+	Makefile.in
+
+#
+# binary
+#
+glibtest_SOURCES = \
+	glibtest.c
+
+glibtest_LDADD = \
+	$(GLIB_LIBS) \
+	$(NM_LIBS)
+
diff --git a/local_src/glibtest/autogen.sh b/local_src/glibtest/autogen.sh
new file mode 100755
index 0000000..6d1c20a
--- /dev/null
+++ b/local_src/glibtest/autogen.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+#
+# usage:
+#
+# banner <target name>
+#
+banner() {
+	echo
+	TG=`echo $1 | sed -e "s,/.*/,,g"`
+	LINE=`echo $TG |sed -e "s/./-/g"`
+	echo $LINE
+	echo $TG
+	echo $LINE
+	echo
+}
+
+banner "autoreconf"
+
+autoreconf --force --install -Wall || exit $?
+
+banner "Finished"
diff --git a/local_src/glibtest/configure.ac b/local_src/glibtest/configure.ac
new file mode 100644
index 0000000..cb540db
--- /dev/null
+++ b/local_src/glibtest/configure.ac
@@ -0,0 +1,68 @@
+AC_PREREQ([2.69])
+
+AC_INIT([glibtest],[1],[bugs@pengutronix.de])
+AC_CONFIG_SRCDIR([glibtest.c])
+AC_CANONICAL_BUILD
+AC_CANONICAL_HOST
+
+AM_MAINTAINER_MODE
+
+CFLAGS="${CFLAGS} -W -Wall -Wcast-qual"
+
+#
+# libtool library versioning stuff
+#
+# Library code modified:            REVISION++
+# Interfaces changed/added/removed: CURRENT++   REVISION=0
+# Interfaces added:                 AGE++
+# Interfaces removed:               AGE=0
+LT_CURRENT=0
+LT_REVISION=0
+LT_AGE=0
+AC_SUBST(LT_CURRENT)
+AC_SUBST(LT_REVISION)
+AC_SUBST(LT_AGE)
+
+
+#
+# Checks for programs.
+#
+AC_PROG_CC
+LT_INIT
+
+AM_INIT_AUTOMAKE([foreign no-exeext dist-bzip2])
+
+PKG_PROG_PKG_CONFIG
+
+PKG_CHECK_MODULES([GLIB], [glib-2.0])
+AC_SUBST([GLIB_CFLAGS])
+AC_SUBST([GLIB_LIBS])
+
+PKG_CHECK_MODULES([NM], [libnm])
+AC_SUBST([NM_CFLAGS])
+AC_SUBST([NM_LIBS])
+
+#
+# Debugging
+#
+AC_MSG_CHECKING([whether to enable debugging])
+AC_ARG_ENABLE(debug,
+    AS_HELP_STRING([--enable-debug], [enable debugging @<:@default=yes@:>@]),
+	[case "$enableval" in
+	y | yes) CONFIG_DEBUG=yes ;;
+	*) CONFIG_DEBUG=no ;;
+    esac],
+    [CONFIG_DEBUG=yes])
+AC_MSG_RESULT([${CONFIG_DEBUG}])
+if test "${CONFIG_DEBUG}" = "yes"; then
+    CFLAGS="${CFLAGS} -Werror -Wsign-compare -Wfloat-equal -Wformat-security -g -O1"
+    AC_DEFINE(DEBUG, 1, [debugging])
+else
+    CFLAGS="${CFLAGS} -O2"
+fi
+
+
+AC_CONFIG_FILES([
+	Makefile
+])
+AC_OUTPUT
diff --git a/local_src/glibtest/glibtest.c b/local_src/glibtest/glibtest.c
new file mode 100644
index 0000000..b5dd21c
--- /dev/null
+++ b/local_src/glibtest/glibtest.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+#include <NetworkManager.h>
+
+int main(void)
+{
+	printf("hello fish!\n");
+	return 0;
+}
+
diff --git a/rules/glibtest.in b/rules/glibtest.in
new file mode 100644
index 0000000..ad02d55
--- /dev/null
+++ b/rules/glibtest.in
@@ -0,0 +1,9 @@
+## SECTION=project_specific
+
+config GLIBTEST
+	bool
+	select GLIB
+	select NETWORKMANAGER
+	prompt "glibtest"
+	help
+	  FIXME
diff --git a/rules/glibtest.make b/rules/glibtest.make
new file mode 100644
index 0000000..10b3512
--- /dev/null
+++ b/rules/glibtest.make
@@ -0,0 +1,123 @@
+# -*-makefile-*-
+#
+# Copyright (C) 2015 by Jon Ringle <jringle@gridpoint.com>
+#
+# See CREDITS for details about who has contributed to this project.
+#
+# For further information about the PTXdist project and license conditions
+# see the README file.
+#
+
+#
+# We provide this package
+#
+PACKAGES-$(PTXCONF_GLIBTEST) += glibtest
+
+#
+# Paths and names
+#
+GLIBTEST_VERSION	:= 1
+GLIBTEST		:= glibtest-$(GLIBTEST_VERSION)
+GLIBTEST_URL		:= file://$(PTXDIST_WORKSPACE)/local_src/glibtest
+GLIBTEST_DIR		:= $(BUILDDIR)/$(GLIBTEST)
+GLIBTEST_BUILD_OOT	:= YES
+GLIBTEST_LICENSE	:= unknown
+
+# ----------------------------------------------------------------------------
+# Extract
+# ----------------------------------------------------------------------------
+
+$(STATEDIR)/glibtest.extract: $(STATEDIR)/autogen-tools
+
+$(STATEDIR)/glibtest.extract:
+	@$(call targetinfo)
+	@$(call clean, $(GLIBTEST_DIR))
+	@$(call extract, GLIBTEST)
+	cd $(GLIBTEST_DIR) && [ -f configure ] || sh autogen.sh
+	@$(call patchin, GLIBTEST)
+	@$(call touch)
+
+# ----------------------------------------------------------------------------
+# Prepare
+# ----------------------------------------------------------------------------
+
+#GLIBTEST_CONF_ENV	:= $(CROSS_ENV)
+
+#
+# autoconf
+#
+GLIBTEST_CONF_TOOL	:= autoconf
+#GLIBTEST_CONF_OPT	:= $(CROSS_AUTOCONF_USR)
+
+#$(STATEDIR)/glibtest.prepare:
+#	@$(call targetinfo)
+#	@$(call world/prepare, GLIBTEST)
+#	@$(call touch)
+
+# ----------------------------------------------------------------------------
+# Compile
+# ----------------------------------------------------------------------------
+
+#$(STATEDIR)/glibtest.compile:
+#	@$(call targetinfo)
+#	@$(call world/compile, GLIBTEST)
+#	@$(call touch)
+
+# ----------------------------------------------------------------------------
+# Install
+# ----------------------------------------------------------------------------
+
+#$(STATEDIR)/glibtest.install:
+#	@$(call targetinfo)
+#	@$(call world/install, GLIBTEST)
+#	@$(call touch)
+
+# ----------------------------------------------------------------------------
+# Target-Install
+# ----------------------------------------------------------------------------
+
+$(STATEDIR)/glibtest.targetinstall:
+	@$(call targetinfo)
+
+	@$(call install_init, glibtest)
+	@$(call install_fixup, glibtest, PRIORITY, optional)
+	@$(call install_fixup, glibtest, SECTION, base)
+	@$(call install_fixup, glibtest, AUTHOR, "Jon Ringle <jringle@gridpoint.com>")
+	@$(call install_fixup, glibtest, DESCRIPTION, missing)
+
+#	#
+#	# example code:; copy all libraries, links and binaries
+#	#
+
+	@for i in $(shell cd $(GLIBTEST_PKGDIR) && find bin sbin usr/bin usr/sbin -type f); do \
+		$(call install_copy, glibtest, 0, 0, 0755, -, /$$i); \
+	done
+	@for i in $(shell cd $(GLIBTEST_PKGDIR) && find lib usr/lib -name "*.so*"); do \
+		$(call install_copy, glibtest, 0, 0, 0644, -, /$$i); \
+	done
+	@links="$(shell cd $(GLIBTEST_PKGDIR) && find lib usr/lib -type l)"; \
+	if [ -n "$$links" ]; then \
+		for i in $$links; do \
+			from="`readlink $(GLIBTEST_PKGDIR)/$$i`"; \
+			to="/$$i"; \
+			$(call install_link, glibtest, $$from, $$to); \
+		done; \
+	fi
+
+#	#
+#	# FIXME: add all necessary things here
+#	#
+
+	@$(call install_finish, glibtest)
+
+	@$(call touch)
+
+# ----------------------------------------------------------------------------
+# Clean
+# ----------------------------------------------------------------------------
+
+#$(STATEDIR)/glibtest.clean:
+#	@$(call targetinfo)
+#	@$(call clean_pkg, GLIBTEST)
+
+# vim: syntax=make
-- 
2.4.1


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