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tools lib subcmd: Add dependency test to install_headers 

Compute the headers to be installed from their source headers and make
each have its own build target to install it. Using dependencies
avoids headers being reinstalled and getting a new timestamp which
then causes files that depend on the header to be rebuilt.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Rix <trix@redhat.com>
Cc: bpf@vger.kernel.org
Cc: llvm@lists.linux.dev
Link: https://lore.kernel.org/r/20221202045743.2639466-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2022-12-01 20:57:41 -08:00 committed by Arnaldo Carvalho de Melo
parent 47e02b94a4
commit 5d890591db
1 changed files with 13 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
tools/lib/subcmd/Makefile
View File

@ -89,10 +89,10 @@ define do_install_mkdir
endef
define do_install
if [ ! -d '$(DESTDIR_SQ)$2' ]; then \
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
if [ ! -d '$2' ]; then \
$(INSTALL) -d -m 755 '$2'; \
fi; \
$(INSTALL) $1 $(if $3,-m $3,) '$(DESTDIR_SQ)$2'
$(INSTALL) $1 $(if $3,-m $3,) '$2'
endef
install_lib: $(LIBFILE)
@ -100,13 +100,16 @@ install_lib: $(LIBFILE)
$(call do_install_mkdir,$(libdir_SQ)); \
cp -fpR $(LIBFILE) $(DESTDIR)$(libdir_SQ)
install_headers:
$(call QUIET_INSTALL, libsubcmd_headers) \
$(call do_install,exec-cmd.h,$(prefix)/include/subcmd,644); \
$(call do_install,help.h,$(prefix)/include/subcmd,644); \
$(call do_install,pager.h,$(prefix)/include/subcmd,644); \
$(call do_install,parse-options.h,$(prefix)/include/subcmd,644); \
$(call do_install,run-command.h,$(prefix)/include/subcmd,644);
HDRS := exec-cmd.h help.h pager.h parse-options.h run-command.h
INSTALL_HDRS_PFX := $(DESTDIR)$(prefix)/include/subcmd
INSTALL_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(HDRS))
$(INSTALL_HDRS): $(INSTALL_HDRS_PFX)/%.h: %.h
$(call QUIET_INSTALL, $@) \
$(call do_install,$<,$(INSTALL_HDRS_PFX)/,644)
install_headers: $(INSTALL_HDRS)
$(call QUIET_INSTALL, libsubcmd_headers)
install: install_lib install_headers