[PATCH v2 1/4] tools lib subcmd: Add install target

From: Ian Rogers
Date: Mon Nov 21 2022 - 19:12:01 EST


This allows libsubcmd to be installed as a dependency.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
tools/lib/subcmd/Makefile | 49 +++++++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)

diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
index 8f1a09cdfd17..e96566f8991c 100644
--- a/tools/lib/subcmd/Makefile
+++ b/tools/lib/subcmd/Makefile
@@ -17,6 +17,15 @@ RM = rm -f

MAKEFLAGS += --no-print-directory

+INSTALL = install
+
+# Use DESTDIR for installing into a different root directory.
+# This is useful for building a package. The program will be
+# installed in this directory as if it was the root directory.
+# Then the build tool can move it later.
+DESTDIR ?=
+DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
+
LIBFILE = $(OUTPUT)libsubcmd.a

CFLAGS := -ggdb3 -Wall -Wextra -std=gnu99 -fPIC
@@ -48,6 +57,18 @@ CFLAGS += $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)

SUBCMD_IN := $(OUTPUT)libsubcmd-in.o

+ifeq ($(LP64), 1)
+ libdir_relative = lib64
+else
+ libdir_relative = lib
+endif
+
+prefix ?=
+libdir = $(prefix)/$(libdir_relative)
+
+# Shell quotes
+libdir_SQ = $(subst ','\'',$(libdir))
+
all:

export srctree OUTPUT CC LD CFLAGS V
@@ -61,6 +82,34 @@ $(SUBCMD_IN): FORCE
$(LIBFILE): $(SUBCMD_IN)
$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(SUBCMD_IN)

+define do_install_mkdir
+ if [ ! -d '$(DESTDIR_SQ)$1' ]; then \
+ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
+ fi
+endef
+
+define do_install
+ if [ ! -d '$(DESTDIR_SQ)$2' ]; then \
+ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
+ fi; \
+ $(INSTALL) $1 $(if $3,-m $3,) '$(DESTDIR_SQ)$2'
+endef
+
+install_lib: $(LIBFILE)
+ $(call QUIET_INSTALL, $(LIBFILE)) \
+ $(call do_install_mkdir,$(libdir_SQ)); \
+ cp -fpR $(LIBFILE) $(DESTDIR)$(libdir_SQ)
+
+install_headers:
+ $(call QUIET_INSTALL, 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);
+
+install: install_lib install_headers
+
clean:
$(call QUIET_CLEAN, libsubcmd) $(RM) $(LIBFILE); \
find $(or $(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
--
2.38.1.584.g0f3c55d4c2-goog