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* [PATCH 1/2] Automake AM_CFLAGS, AM_LDFLAGS fixups
@ 2011-11-12 19:12 Alon Bar-Lev
  2011-11-12 23:15 ` Marcel Holtmann
  0 siblings, 1 reply; 7+ messages in thread
From: Alon Bar-Lev @ 2011-11-12 19:12 UTC (permalink / raw)
  To: linux-bluetooth

[-- Attachment #1: Type: text/plain, Size: 1309 bytes --]

Reference: "Flag Variables Ordering"[1]

In automake, if you modify CFLAGS or LDFLAGS of a target you
actually override the autoconf supplied flags. This is highly
none standard and may lead to undesired results, as some
targets will be compiled with the autoconf supplied flags and
some won't.

This patch adds AM_CFLAGS, AM_LDFLAGS to any flags override.

Some notes:

1. Remove none common flags:
        -DBLUETOOTH_PLUGIN_BUILTIN -DPLUGINDIR=\""$(build_plugindir)"\"
Moved to bluetoothd only, as BLUETOOTH_PLUGIN_BUILTIN should effect
only sources compiled within it.
And PLUGINDIR is used only by the daemon.

2. More targets now will be compiled with:
        @DBUS_CFLAGS@ @GLIB_CFLAGS@ @CAPNG_CFLAGS@
If this is a problem I will add these to specific targets.

3. I am not sure there is a reason to set specific trivial CFLAGS for
simple includes in target specific. Simpler is to put all at AM_CFLAGS.

4. All @XXX_XXFLAGS@ can actually be used as make macros $(XXX_XXFLAGS),
Since AC_SUBST are automatically generated as make macros.

5. Why don't you split up the Makefile.am into smaller by
directory/library? It would be easier to control the setup.

[1] http://www.gnu.org/software/automake/manual/automake.html#Flag-Variables-Ordering

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>

---

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[-- Type: text/x-patch, Size: 6319 bytes --]

From 18275e31e99e1eb407beff6301b3a63e64fa9fd6 Mon Sep 17 00:00:00 2001
From: Alon Bar-Lev <alon.barlev@gmail.com>
Date: Sat, 12 Nov 2011 20:39:04 +0200
Subject: [PATCH 1/2] [PATCH] Automake AM_CFLAGS, AM_LDFLAGS fixups

Reference: "Flag Variables Ordering"[1]

In automake, if you modify CFLAGS or LDFLAGS of a target you
actually override the autoconf supplied flags. This is highly
none standard and may lead to undesired results, as some
targets will be compiled with the autoconf supplied flags and
some won't.

This patch adds AM_CFLAGS, AM_LDFLAGS to any flags override.

Some notes:

1. Remove none common flags:
	-DBLUETOOTH_PLUGIN_BUILTIN -DPLUGINDIR=\""$(build_plugindir)"\"
Moved to bluetoothd only, as BLUETOOTH_PLUGIN_BUILTIN should effect
only sources compiled within it.
And PLUGINDIR is used only by the daemon.

2. More targets now will be compiled with:
	@DBUS_CFLAGS@ @GLIB_CFLAGS@ @CAPNG_CFLAGS@
If this is a problem I will add these to specific targets.

3. I am not sure there is a reason to set specific trivial CFLAGS for
simple includes in target specific. Simpler is to put all at AM_CFLAGS.

4. All @XXX_XXFLAGS@ can actually be used as make macros $(XXX_XXFLAGS),
Since AC_SUBST are automatically generated as make macros.

5. Why don't you split up the Makefile.am into smaller by
directory/library? It would be easier to control the setup.

[1] http://www.gnu.org/software/automake/manual/automake.html#Flag-Variables-Ordering

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
---
 Makefile.am |   27 ++++++++++++++-------------
 1 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 283af4d..7f2c156 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -70,7 +70,7 @@ lib_LTLIBRARIES += lib/libbluetooth.la
 
 lib_libbluetooth_la_SOURCES = $(lib_headers) \
 				lib/bluetooth.c lib/hci.c lib/sdp.c lib/uuid.c
-lib_libbluetooth_la_LDFLAGS = -version-info 14:4:11
+lib_libbluetooth_la_LDFLAGS = $(AM_LDFLAGS) -version-info 14:4:11
 lib_libbluetooth_la_DEPENDENCIES = $(local_headers)
 
 noinst_LTLIBRARIES += lib/libbluetooth-private.la
@@ -87,7 +87,7 @@ sbc_libsbc_la_SOURCES = sbc/sbc.h sbc/sbc.c sbc/sbc_math.h sbc/sbc_tables.h \
 			sbc/sbc_primitives_neon.h sbc/sbc_primitives_neon.c \
 			sbc/sbc_primitives_armv6.h sbc/sbc_primitives_armv6.c
 
-sbc_libsbc_la_CFLAGS = -finline-functions -fgcse-after-reload \
+sbc_libsbc_la_CFLAGS = $(AM_CFLAGS) -finline-functions -fgcse-after-reload \
 					-funswitch-loops -funroll-loops
 
 noinst_PROGRAMS += sbc/sbcinfo sbc/sbcdec sbc/sbcenc
@@ -286,8 +286,8 @@ endif
 if MAINTAINER_MODE
 plugin_LTLIBRARIES += plugins/external-dummy.la
 plugins_external_dummy_la_SOURCES = plugins/external-dummy.c
-plugins_external_dummy_la_LDFLAGS = -module -avoid-version -no-undefined
-plugins_external_dummy_la_CFLAGS = -fvisibility=hidden
+plugins_external_dummy_la_LDFLAGS = $(AM_LDFLAGS) -module -avoid-version -no-undefined
+plugins_external_dummy_la_CFLAGS = $(AM_CFLAGS) -fvisibility=hidden
 endif
 
 sbin_PROGRAMS += src/bluetoothd
@@ -317,7 +317,9 @@ src_bluetoothd_SOURCES = $(gdbus_sources) $(builtin_sources) \
 			src/oob.h src/oob.c src/eir.h src/eir.c
 src_bluetoothd_LDADD = lib/libbluetooth-private.la @GLIB_LIBS@ @DBUS_LIBS@ \
 							@CAPNG_LIBS@ -ldl -lrt
-src_bluetoothd_LDFLAGS = -Wl,--export-dynamic \
+src_bluetoothd_CFLAGS = $(AM_CFLAGS) \
+		-DBLUETOOTH_PLUGIN_BUILTIN -DPLUGINDIR=\""$(build_plugindir)"\"
+src_bluetoothd_LDFLAGS = $(AM_LDFLAGS) -Wl,--export-dynamic \
 				-Wl,--version-script=$(srcdir)/src/bluetooth.ver
 
 src_bluetoothd_DEPENDENCIES = lib/libbluetooth-private.la
@@ -350,17 +352,17 @@ alsa_LTLIBRARIES = audio/libasound_module_pcm_bluetooth.la \
 
 audio_libasound_module_pcm_bluetooth_la_SOURCES = audio/pcm_bluetooth.c \
 					audio/rtp.h audio/ipc.h audio/ipc.c
-audio_libasound_module_pcm_bluetooth_la_LDFLAGS = -module -avoid-version #-export-symbols-regex [_]*snd_pcm_.*
+audio_libasound_module_pcm_bluetooth_la_LDFLAGS = $(AM_LDFLAGS) -module -avoid-version #-export-symbols-regex [_]*snd_pcm_.*
 audio_libasound_module_pcm_bluetooth_la_LIBADD = sbc/libsbc.la \
 					lib/libbluetooth-private.la @ALSA_LIBS@
-audio_libasound_module_pcm_bluetooth_la_CFLAGS = @ALSA_CFLAGS@
+audio_libasound_module_pcm_bluetooth_la_CFLAGS = $(AM_CFLAGS) @ALSA_CFLAGS@
 
 audio_libasound_module_ctl_bluetooth_la_SOURCES = audio/ctl_bluetooth.c \
 					audio/rtp.h audio/ipc.h audio/ipc.c
-audio_libasound_module_ctl_bluetooth_la_LDFLAGS = -module -avoid-version #-export-symbols-regex [_]*snd_ctl_.*
+audio_libasound_module_ctl_bluetooth_la_LDFLAGS = $(AM_LDFLAGS) -module -avoid-version #-export-symbols-regex [_]*snd_ctl_.*
 audio_libasound_module_ctl_bluetooth_la_LIBADD = \
 					lib/libbluetooth-private.la @ALSA_LIBS@
-audio_libasound_module_ctl_bluetooth_la_CFLAGS = @ALSA_CFLAGS@
+audio_libasound_module_ctl_bluetooth_la_CFLAGS = $(AM_CFLAGS) @ALSA_CFLAGS@
 
 if DATAFILES
 alsaconfdir = $(datadir)/alsa
@@ -384,7 +386,7 @@ audio_libgstbluetooth_la_SOURCES = audio/gstbluetooth.c audio/gstpragma.h \
 				audio/gstsbcutil.h audio/gstsbcutil.c \
 				audio/gstrtpsbcpay.h audio/gstrtpsbcpay.c \
 				audio/rtp.h audio/ipc.h audio/ipc.c
-audio_libgstbluetooth_la_LDFLAGS = -module -avoid-version
+audio_libgstbluetooth_la_LDFLAGS = $(AM_LDFLAGS) -module -avoid-version
 audio_libgstbluetooth_la_LIBADD = sbc/libsbc.la lib/libbluetooth-private.la \
 				@DBUS_LIBS@ @GSTREAMER_LIBS@ -lgstaudio-0.10 -lgstrtp-0.10
 audio_libgstbluetooth_la_CFLAGS = -fvisibility=hidden -fno-strict-aliasing \
@@ -432,8 +434,7 @@ EXTRA_DIST += doc/manager-api.txt \
 
 AM_YFLAGS = -d
 
-AM_CFLAGS = @DBUS_CFLAGS@ @GLIB_CFLAGS@ @CAPNG_CFLAGS@ \
-		-DBLUETOOTH_PLUGIN_BUILTIN -DPLUGINDIR=\""$(build_plugindir)"\"
+AM_CFLAGS = @DBUS_CFLAGS@ @GLIB_CFLAGS@ @CAPNG_CFLAGS@
 
 INCLUDES = -I$(builddir)/lib -I$(builddir)/src -I$(srcdir)/src \
 			-I$(srcdir)/audio -I$(srcdir)/sbc -I$(srcdir)/gdbus \
@@ -450,7 +451,7 @@ unit_tests = unit/test-eir
 noinst_PROGRAMS += $(unit_tests)
 
 unit_test_eir_SOURCES = unit/test-eir.c src/eir.c src/glib-helper.c
-unit_test_eir_CFLAGS = @GLIB_CFLAGS@ @CHECK_CFLAGS@
+unit_test_eir_CFLAGS = $(AM_CFLAGS) @GLIB_CFLAGS@ @CHECK_CFLAGS@
 unit_test_eir_LDADD = lib/libbluetooth-private.la @GLIB_LIBS@ @CHECK_LIBS@
 unit_objects += $(unit_test_eir_OBJECTS)
 
-- 
1.7.3.4


^ permalink raw reply related	[flat|nested] 7+ messages in thread
* [PATCH 1/2] Automake AM_CFLAGS, AM_LDFLAGS fixups
@ 2011-11-12 23:48 Alon Bar-Lev
  2011-11-13  4:49 ` Marcel Holtmann
  0 siblings, 1 reply; 7+ messages in thread
From: Alon Bar-Lev @ 2011-11-12 23:48 UTC (permalink / raw)
  To: linux-bluetooth; +Cc: Alon Bar-Lev

Reference: "Flag Variables Ordering"[1]

In automake, if you modify CFLAGS or LDFLAGS of a target you
actually override the autoconf supplied flags. This is highly
none standard and may lead to undesired results, as some
targets will be compiled with the autoconf supplied flags and
some won't.

This patch adds AM_CFLAGS to any flags overridden.

Some notes:

1. Remove none common flags:
	-DBLUETOOTH_PLUGIN_BUILTIN -DPLUGINDIR=\""$(build_plugindir)"\"
Moved to bluetoothd only, as BLUETOOTH_PLUGIN_BUILTIN should
effect only sources compiled within it.
And PLUGINDIR is used only by the daemon.

2. More targets now will be compiled with:
	@DBUS_CFLAGS@ @GLIB_CFLAGS@ @CAPNG_CFLAGS@
If this is a problem I will add these to specific
targets.

3. I am not sure there is a reason to set specific
trivial CFLAGS for simple includes in target specific. Simpler
is to put all at AM_CFLAGS.

4. All @XXX_XXFLAGS@ can actually be used as make macros
$(XXX_XXFLAGS),
Since AC_SUBST are automatically generated as make
macros.

5. Why don't you split up the Makefile.am into smaller
by directory/library? It would be easier to control the
setup.

[1] http://www.gnu.org/software/automake/manual/automake.html#Flag-Variables-Ordering
---
 Makefile.am |   21 +++++++++++----------
 1 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 283af4d..fdc58f6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -87,7 +87,7 @@ sbc_libsbc_la_SOURCES = sbc/sbc.h sbc/sbc.c sbc/sbc_math.h sbc/sbc_tables.h \
 			sbc/sbc_primitives_neon.h sbc/sbc_primitives_neon.c \
 			sbc/sbc_primitives_armv6.h sbc/sbc_primitives_armv6.c
 
-sbc_libsbc_la_CFLAGS = -finline-functions -fgcse-after-reload \
+sbc_libsbc_la_CFLAGS = $(AM_CFLAGS) -finline-functions -fgcse-after-reload \
 					-funswitch-loops -funroll-loops
 
 noinst_PROGRAMS += sbc/sbcinfo sbc/sbcdec sbc/sbcenc
@@ -102,7 +102,7 @@ if SNDFILE
 noinst_PROGRAMS += sbc/sbctester
 
 sbc_sbctester_LDADD = @SNDFILE_LIBS@ -lm
-sbc_sbctest_CFLAGS = @SNDFILE_CFLAGS@
+sbc_sbctest_CFLAGS = $(AM_CFLAGS) @SNDFILE_CFLAGS@
 endif
 endif
 
@@ -287,7 +287,7 @@ if MAINTAINER_MODE
 plugin_LTLIBRARIES += plugins/external-dummy.la
 plugins_external_dummy_la_SOURCES = plugins/external-dummy.c
 plugins_external_dummy_la_LDFLAGS = -module -avoid-version -no-undefined
-plugins_external_dummy_la_CFLAGS = -fvisibility=hidden
+plugins_external_dummy_la_CFLAGS = $(AM_CFLAGS) -fvisibility=hidden
 endif
 
 sbin_PROGRAMS += src/bluetoothd
@@ -317,6 +317,8 @@ src_bluetoothd_SOURCES = $(gdbus_sources) $(builtin_sources) \
 			src/oob.h src/oob.c src/eir.h src/eir.c
 src_bluetoothd_LDADD = lib/libbluetooth-private.la @GLIB_LIBS@ @DBUS_LIBS@ \
 							@CAPNG_LIBS@ -ldl -lrt
+src_bluetoothd_CFLAGS = $(AM_CFLAGS) \
+		-DBLUETOOTH_PLUGIN_BUILTIN -DPLUGINDIR=\""$(build_plugindir)"\"
 src_bluetoothd_LDFLAGS = -Wl,--export-dynamic \
 				-Wl,--version-script=$(srcdir)/src/bluetooth.ver
 
@@ -353,14 +355,14 @@ audio_libasound_module_pcm_bluetooth_la_SOURCES = audio/pcm_bluetooth.c \
 audio_libasound_module_pcm_bluetooth_la_LDFLAGS = -module -avoid-version #-export-symbols-regex [_]*snd_pcm_.*
 audio_libasound_module_pcm_bluetooth_la_LIBADD = sbc/libsbc.la \
 					lib/libbluetooth-private.la @ALSA_LIBS@
-audio_libasound_module_pcm_bluetooth_la_CFLAGS = @ALSA_CFLAGS@
+audio_libasound_module_pcm_bluetooth_la_CFLAGS = $(AM_CFLAGS) @ALSA_CFLAGS@
 
 audio_libasound_module_ctl_bluetooth_la_SOURCES = audio/ctl_bluetooth.c \
 					audio/rtp.h audio/ipc.h audio/ipc.c
 audio_libasound_module_ctl_bluetooth_la_LDFLAGS = -module -avoid-version #-export-symbols-regex [_]*snd_ctl_.*
 audio_libasound_module_ctl_bluetooth_la_LIBADD = \
 					lib/libbluetooth-private.la @ALSA_LIBS@
-audio_libasound_module_ctl_bluetooth_la_CFLAGS = @ALSA_CFLAGS@
+audio_libasound_module_ctl_bluetooth_la_CFLAGS = $(AM_CFLAGS) @ALSA_CFLAGS@
 
 if DATAFILES
 alsaconfdir = $(datadir)/alsa
@@ -387,8 +389,8 @@ audio_libgstbluetooth_la_SOURCES = audio/gstbluetooth.c audio/gstpragma.h \
 audio_libgstbluetooth_la_LDFLAGS = -module -avoid-version
 audio_libgstbluetooth_la_LIBADD = sbc/libsbc.la lib/libbluetooth-private.la \
 				@DBUS_LIBS@ @GSTREAMER_LIBS@ -lgstaudio-0.10 -lgstrtp-0.10
-audio_libgstbluetooth_la_CFLAGS = -fvisibility=hidden -fno-strict-aliasing \
-						$(AM_CFLAGS) @DBUS_CFLAGS@ @GSTREAMER_CFLAGS@
+audio_libgstbluetooth_la_CFLAGS = $(AM_CFLAGS) -fvisibility=hidden -fno-strict-aliasing \
+						@DBUS_CFLAGS@ @GSTREAMER_CFLAGS@
 endif
 endif
 
@@ -432,8 +434,7 @@ EXTRA_DIST += doc/manager-api.txt \
 
 AM_YFLAGS = -d
 
-AM_CFLAGS = @DBUS_CFLAGS@ @GLIB_CFLAGS@ @CAPNG_CFLAGS@ \
-		-DBLUETOOTH_PLUGIN_BUILTIN -DPLUGINDIR=\""$(build_plugindir)"\"
+AM_CFLAGS = @DBUS_CFLAGS@ @GLIB_CFLAGS@ @CAPNG_CFLAGS@
 
 INCLUDES = -I$(builddir)/lib -I$(builddir)/src -I$(srcdir)/src \
 			-I$(srcdir)/audio -I$(srcdir)/sbc -I$(srcdir)/gdbus \
@@ -450,7 +451,7 @@ unit_tests = unit/test-eir
 noinst_PROGRAMS += $(unit_tests)
 
 unit_test_eir_SOURCES = unit/test-eir.c src/eir.c src/glib-helper.c
-unit_test_eir_CFLAGS = @GLIB_CFLAGS@ @CHECK_CFLAGS@
+unit_test_eir_CFLAGS = $(AM_CFLAGS) @GLIB_CFLAGS@ @CHECK_CFLAGS@
 unit_test_eir_LDADD = lib/libbluetooth-private.la @GLIB_LIBS@ @CHECK_LIBS@
 unit_objects += $(unit_test_eir_OBJECTS)
 
-- 
1.7.3.4


^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2011-11-13  4:49 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-11-12 19:12 [PATCH 1/2] Automake AM_CFLAGS, AM_LDFLAGS fixups Alon Bar-Lev
2011-11-12 23:15 ` Marcel Holtmann
2011-11-12 23:24   ` Alon Bar-Lev
2011-11-12 23:28     ` Marcel Holtmann
2011-11-12 23:43     ` Anderson Lizardo
  -- strict thread matches above, loose matches on Subject: below --
2011-11-12 23:48 Alon Bar-Lev
2011-11-13  4:49 ` Marcel Holtmann

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