Add makefiles: some useful debug and build utils.

c/makefile

@@ -1,15 +1,19 @@
 CC      ?= cc
+USR_LDFLAGS ?=
 LDFLAGS ?= -lipc
-
+LDFLAGS += $(USR_LDFLAGS)
-include makefile.valgrind
+LDFLAGS += $(STATIC_BUILD)
+CFLAGS  ?= -Wall -Wextra
 
 all: build
 
+include ../mk/makefile.utils
+
 BINS = pong pongd
 build: $(BINS)
 
 $(BINS):
-	$(CC) -o $@ $@.c $(LDFLAGS)
+	$(CC) -o $@ $@.c $(CFLAGS) $(LDFLAGS)
 
 clean:
 	rm $(BINS) 2>/dev/null

mk/makefile.bin-inspection

@@ -0,0 +1,17 @@
+ifeq ($(SRC),)
+test-src:
+	@echo SRC must be set via command line.
+	@exit 1
+else
+test-src:
+endif
+
+list-obj-files: test-src
+	@# List all .o included in a .a archive.
+	ar t $(SRC)
+list-symbols: test-src
+	@# List all symbols in a .so.
+	nm -D $(SRC)
+list-symbols-alt: test-src
+	@# Alternative: grep .text section in an objdump output.
+	objdump -T $(SRC) | grep text

mk/makefile.static-build

@@ -0,0 +1,6 @@
+ifdef STATIC
+STATIC_BUILD ?= -static
+endif
+
+# For interactive completion in the shell.
+STATIC ?=

mk/makefile.utils

@@ -0,0 +1,3 @@
+include ../mk/makefile.valgrind
+include ../mk/makefile.bin-inspection
+include ../mk/makefile.static-build

mk/makefile.valgrind

@@ -0,0 +1,21 @@
+# Debug with valgrind.
+ifdef VG_SUPPRESS_WARNINGS
+VALGRIND_SUPPRESS_WARNINGS ?= --suppressions=./valgrind.suppr
+endif
+
+ifdef VG_GENERATE_SUPPRESSION
+VALGRIND_GEN_SUPPRESSION ?= --gen-suppressions=all
+endif
+
+VALGRIND_OPTS ?= -v --leak-check=full --track-origins=yes
+
+ifdef USE_VALGRIND
+VALGRIND ?= valgrind $(VALGRIND_SUPPRESS_WARNINGS) \
+	$(VALGRIND_GEN_SUPPRESSION) \
+	$(VALGRIND_OPTS)
+endif
+
+# Optional parameters (copied here to help with autocompletion).
+VG_SUPPRESS_WARNINGS ?=
+VG_GENERATE_SUPPRESSION ?=
+USE_VALGRIND ?=