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From:   Petr Vorel <petr.vorel@gmail.com>
To:     linux-nfs@vger.kernel.org
Cc:     Mike Frysinger <vapier@gentoo.org>,
        Steve Dickson <steved@redhat.com>,
        Petr Vorel <petr.vorel@gmail.com>
Subject: [nfs-utils RESENT PATCH 1/1] locktes/rpcgen: tweak how we override compiler settings
Date:   Sun,  5 Jan 2020 13:05:02 +0100
Message-Id: <20200105120502.765426-1-petr.vorel@gmail.com>
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Sender: linux-nfs-owner@vger.kernel.org
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From: Mike Frysinger <vapier@gentoo.org>

Newer autotools will use both CFLAGS and <target>_CFLAGS when compiling
the <target>.  Adding the build settings to the target-specific flags no
longer works as a way to compile build-time tools.

Instead, clobber the global flags.  This triggers an automake warning,
but the end result actually works (unlike the existing code).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
---
Hi Steve,

this patch was sent by Mike in 2013 [1]. You had some objections about
warnings it causes [2]. Although I understand it, I'd like it was merged,
because it's needed (taken by distros: gentoo [3], buildroot [4]) and
IMHO it cannot be implemented other way.

Also not sure, what should be changed in automake to avoid this tweek
(I might ask upstream).

Kind regards,
Petr

[1] https://marc.info/?l=linux-nfs&m=136416341629788&w=2
[2] https://marc.info/?l=linux-nfs&m=136423027217638&w=2
[3] https://gitweb.gentoo.org/repo/gentoo.git/tree/net-fs/nfs-utils/files/nfs-utils-1.2.8-cross-build.patch
[4] https://git.busybox.net/buildroot/tree/package/nfs-utils/0001-Patch-taken-from-Gentoo.patch

 tools/locktest/Makefile.am | 7 +++----
 tools/rpcgen/Makefile.am   | 7 +++----
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/tools/locktest/Makefile.am b/tools/locktest/Makefile.am
index 3156815d..efe6fcdb 100644
--- a/tools/locktest/Makefile.am
+++ b/tools/locktest/Makefile.am
@@ -1,12 +1,11 @@
 ## Process this file with automake to produce Makefile.in
 
 CC=$(CC_FOR_BUILD)
-LIBTOOL = @LIBTOOL@ --tag=CC
+CFLAGS=$(CFLAGS_FOR_BUILD)
+CPPFLAGS=$(CPPFLAGS_FOR_BUILD)
+LDFLAGS=$(LDFLAGS_FOR_BUILD)
 
 noinst_PROGRAMS = testlk
 testlk_SOURCES = testlk.c
-testlk_CFLAGS=$(CFLAGS_FOR_BUILD)
-testlk_CPPFLAGS=$(CPPFLAGS_FOR_BUILD)
-testlk_LDFLAGS=$(LDFLAGS_FOR_BUILD)
 
 MAINTAINERCLEANFILES = Makefile.in
diff --git a/tools/rpcgen/Makefile.am b/tools/rpcgen/Makefile.am
index 8a9ec89c..3adeec15 100644
--- a/tools/rpcgen/Makefile.am
+++ b/tools/rpcgen/Makefile.am
@@ -1,7 +1,9 @@
 ## Process this file with automake to produce Makefile.in
 
 CC=$(CC_FOR_BUILD)
-LIBTOOL = @LIBTOOL@ --tag=CC
+CFLAGS=$(CFLAGS_FOR_BUILD)
+CPPFLAGS=$(CPPFLAGS_FOR_BUILD)
+LDFLAGS=$(LDFLAGS_FOR_BUILD)
 
 noinst_PROGRAMS = rpcgen
 rpcgen_SOURCES = rpc_clntout.c rpc_cout.c rpc_hout.c rpc_main.c \
@@ -9,9 +11,6 @@ rpcgen_SOURCES = rpc_clntout.c rpc_cout.c rpc_hout.c rpc_main.c \
 		 rpc_util.c rpc_sample.c rpc_output.h rpc_parse.h \
 		 rpc_scan.h rpc_util.h
 
-rpcgen_CFLAGS=$(CFLAGS_FOR_BUILD)
-rpcgen_CPPLAGS=$(CPPFLAGS_FOR_BUILD)
-rpcgen_LDFLAGS=$(LDFLAGS_FOR_BUILD)
 rpcgen_LDADD=$(LIBTIRPC)
 
 MAINTAINERCLEANFILES = Makefile.in
-- 
2.24.0