Add STRIP_DEBUG_INFO variable to allow omitting strip during build phase

For example, Arch Linux strips debug information after build during the
package creation and producing separate debug info files during the
build interferes with the Arch tooling.

Author: lahwaacz

Makefile

@@ -21,6 +21,7 @@ WITH_NVCGO   ?= yes
 WITH_LIBELF  ?= no
 WITH_TIRPC   ?= no
 WITH_SECCOMP ?= yes
+STRIP_DEBUG_INFO ?= yes
 
 ##### Global definitions #####
 
@@ -219,22 +220,28 @@ $(BIN_OBJS): %.o: %.c | shared
 -include $(DEPENDENCIES)
 
 $(LIB_SHARED): $(LIB_OBJS)
-	$(MKDIR) -p $(DEBUG_DIR)
 	$(CC) $(LIB_CFLAGS) $(LIB_CPPFLAGS) $(LIB_LDFLAGS) $(OUTPUT_OPTION) $^ $(LIB_SCRIPT) $(LIB_LDLIBS)
+ifeq ($(STRIP_DEBUG_INFO), yes)
+	$(MKDIR) -p $(DEBUG_DIR)
 	$(OBJCPY) --only-keep-debug $@ $(LIB_SONAME)
 	$(OBJCPY) --add-gnu-debuglink=$(LIB_SONAME) $@
 	$(MV) $(LIB_SONAME) $(DEBUG_DIR)
 	$(STRIP) --strip-unneeded -R .comment $@
+endif
 
 $(LIB_STATIC_OBJ): $(LIB_OBJS)
 	# FIXME Handle user-defined LDFLAGS and LDLIBS
 	$(LD) -d -r --exclude-libs ALL -L$(DEPS_DIR)$(libdir) $(OUTPUT_OPTION) $^ $(LIB_LDLIBS_STATIC)
+ifeq ($(STRIP_DEBUG_INFO), yes)
 	$(OBJCPY) --localize-hidden $@
 	$(STRIP) --strip-unneeded -R .comment $@
+endif
 
 $(BIN_NAME): $(BIN_OBJS)
 	$(CC) $(BIN_CFLAGS) $(BIN_CPPFLAGS) $(BIN_LDFLAGS) $(OUTPUT_OPTION) $^ $(BIN_SCRIPT) $(BIN_LDLIBS)
+ifeq ($(STRIP_DEBUG_INFO), yes)
 	$(STRIP) --strip-unneeded -R .comment $@
+endif
 
 ##### Public rules #####
 
@@ -267,7 +274,7 @@ ifeq ($(WITH_TIRPC), yes)
 endif
 
 install: all
-	$(INSTALL) -d -m 755 $(addprefix $(DESTDIR),$(includedir) $(bindir) $(libdir) $(docdir) $(libdbgdir) $(pkgconfdir))
+	$(INSTALL) -d -m 755 $(addprefix $(DESTDIR),$(includedir) $(bindir) $(libdir) $(docdir) $(pkgconfdir))
 	# Install header files
 	$(INSTALL) -m 644 $(LIB_INCS) $(DESTDIR)$(includedir)
 	# Install library files
@@ -280,7 +287,10 @@ ifeq ($(WITH_NVCGO), yes)
 endif
 	$(LDCONFIG) -n $(DESTDIR)$(libdir)
 	# Install debugging symbols
+ifeq ($(STRIP_DEBUG_INFO), yes)
+	$(INSTALL) -d -m 755 $(addprefix $(DESTDIR),$(libdbgdir))
 	$(INSTALL) -m 644 $(DEBUG_DIR)/$(LIB_SONAME) $(DESTDIR)$(libdbgdir)
+endif
 	# Install configuration files
 	$(MAKE_DIR)/$(LIB_PKGCFG).in "$(strip $(VERSION))" "$(strip $(LIB_LDLIBS_SHARED))" > $(DESTDIR)$(pkgconfdir)/$(LIB_PKGCFG)
 	# Install binary files
@@ -298,7 +308,9 @@ ifeq ($(WITH_NVCGO), yes)
 	$(RM) $(addprefix $(DESTDIR)$(libdir)/,$(LIBGO_SHARED) $(LIBGO_SONAME) $(LIBGO_SYMLINK))
 endif
 	# Uninstall debugging symbols
+ifeq ($(STRIP_DEBUG_INFO), yes)
 	$(RM) $(DESTDIR)$(libdbgdir)/$(LIB_SONAME)
+endif
 	# Uninstall configuration files
 	$(RM) $(DESTDIR)$(pkgconfdir)/$(LIB_PKGCFG)
 	# Uninstall binary files