From d9f19275d0549c4b9c3402e1fd28c71627507557 Mon Sep 17 00:00:00 2001
From: Aleksey Veresov <aleksey@veresov.pro>
Date: Mon, 16 Mar 2020 19:33:58 +0300
Subject: [magi]

---
 Makefile | 71 +++++++++++++++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 52 insertions(+), 19 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index ef0a20c..fd2fc64 100644
--- a/Makefile
+++ b/Makefile
@@ -1,56 +1,89 @@
 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
 #     Compilation Options
 # Debug mode (allowing to debug the library via gdb):
-# DEBUG   = yes
+# DEBUG    = yes
+# Specify directory to store object files:
+OBJ_DIR  = build
 # Optional modules (remove unwanted ones):
-MODULES = cgi fastcgi loadfile urlenc
+MODULES  = cgi fastcgi loadfile urlenc
+# Examples to build with 'examples' target:
+EXAMPLES = append cookie echo upload
 # Specify your favourite C compiler here:
-CC      = gcc
+CC       = gcc
 
 
 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
 #     Preparations
-LIB     = libmagi.a
+LIB      = libmagi.a
 
 # Compile under the most strict conditions:
-CFLAGS  = -xc -ansi -pedantic -Wall -Wextra
+CFLAGS   = -xc -ansi -pedantic -Wall -Wextra
 # Debug and optimisation are not compatible:
 ifeq '$(DEBUG)' 'yes'
-CFLAGS += -g -O0
+CFLAGS  += -g -O0
 else
-CFLAGS += -O3 -static
+CFLAGS  += -O3 -static
 endif
 
 # Interfacial files to compile:
-INTER   = cookie error file param request response $(MODULES)
+INTER    = cookie error file param request response $(MODULES)
 
 # Object files listing:
-INC_DIR = include/magi
-SRC_DIR = src
-INTER_H = $(foreach name,$(INTER),$(INC_DIR)/$(name).h)
-INTER_C = $(foreach name,$(INTER),$(SRC_DIR)/$(name).c)
-INNER_H = $(wildcard $(SRC_DIR)/*.h)
-INNER_C = $(INNER_H:.h=.c)
-SRC     = $(INTER_C) $(INNER_C)
-OBJ     = $(SRC:.c=.o)
+INC_DIR  = include/magi
+SRC_DIR  = src
+INTER_H  = $(foreach name,$(INTER),$(INC_DIR)/$(name).h)
+INTER_C  = $(foreach name,$(INTER),$(SRC_DIR)/$(name).c)
+INNER_H  = $(wildcard $(SRC_DIR)/*.h)
+INNER_C  = $(INNER_H:.h=.c)
+SRC      = $(INTER_C) $(INNER_C)
+NAMES    = $(notdir $(SRC:.c=))
+OBJ      = $(foreach name,$(NAMES),$(OBJ_DIR)/$(name).o)
+
+EXDIR    = examples
+EXSRC    = $(foreach ex,$(EXAMPLES),$(EXDIR)/$(ex).c)
 
 
 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
 #     Targets
+.PHONY: default clean examples
+
 # 'make' produces library by default:
-default: $(LIB)
+default: $(OBJ_DIR) $(LIB)
 
 # Cleaning means removing everything automatically produced:
 clean:
-	rm -f $(OBJ) $(LIB)
+	rm -rf $(OBJ_DIR) $(LIB) $(EXAMPLES) deps.mk
+
+examples: default $(EXAMPLES)
 
 
 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
 #     Compilation
 # Compile object files from corresponding source and header:
-%.o: %.c
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c
 	$(CC) $(CFLAGS) -I $(INC_DIR) -c $< -o $@
 
 # Packing object files into library:
 $(LIB): $(OBJ)
 	ar rcs $@ $^
+
+# Making directory for object files:
+$(OBJ_DIR):
+	mkdir $@
+
+# Compile executables from corresponding sources and library:
+%: $(EXDIR)/%.c
+	$(CC) $(CFLAGS) -I include $< -L. -lmagi -o $@
+
+
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+#     Dependencies
+deps.mk: $(SRC)
+	echo '' > deps.mk
+	for t in $(NAMES); do                                                     \
+	$(CC) -I $(INC_DIR) -MT $(OBJ_DIR)/$${t}.o -MM $(SRC_DIR)/$${t}.c >> $@;  \
+	done
+
+ifneq (clean, $(MAKECMDGOALS))
+-include deps.mk
+endif
-- 
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