[PATCH v2] configure: add support for --(disable|enable)-dependency-tracking

Signed-off-by: Kris Van Hees <[email protected]>
---
 Makefunctions | 2 ++
 configure     | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/Makefunctions b/Makefunctions
index 15836dc3..1f308967 100644
--- a/Makefunctions
+++ b/Makefunctions
@@ -52,7 +52,9 @@ endef
 # Rule to build a C source file.
 # Syntax: $(call cc-template,primary,filename-without-dir,optional flags)
 
+ifndef WITHOUT_DEPENDENCIES
 cc-dependencies = -MP -MMD -MF $(obj-name).deps -MT $(obj-name)
+endif
 
 define cc-template
 $(obj-name): $(src-name) $(foreach dep,$($(1)_SRCDEPS),$(call src-name,$(1),$(dep))) $(foreach prov,$($(1)_PROV),$(call hdr-name,$(1),$(prov))) $(CONFIG_H)
diff --git a/configure b/configure
index 04c28369..a3107fd0 100755
--- a/configure
+++ b/configure
@@ -99,6 +99,9 @@ EOF
         echo >&2
         make help-overrides
         cat >&2 <<'EOF'
+Optional features:
+
+--disable-dependency-tracking	Suppress automatic dependency tracking
 
 Options controlling the compiler (pass on the command line):
 
@@ -172,6 +175,8 @@ for option in "$@"; do
         HAVE_VALGRIND=*) write_config_var VALGRIND "$option";;
         HAVE_BPFV3=*) write_config_var BPFV3 "$option";;
         HAVE_BPFMASM=*) write_config_var BPFMASM "$option";;
+        --disable-dependency-tracking) write_make_var WITHOUT_DEPENDENCIES "y";;
+        --enable-dependency-tracking) write_make_var WITHOUT_DEPENDENCIES "n";;
         *) echo "Unknown option $option" >&2
            exit 1;;
     esac
-- 
2.51.0