From: Mike Frysinger <vapier@xxxxxxxxxx> 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@xxxxxxxxxx> Reviewed-by: Petr Vorel <petr.vorel@xxxxxxxxx> Signed-off-by: Petr Vorel <petr.vorel@xxxxxxxxx> --- 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