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--- programming:makefiles [2007/12/16 23:44]
127.0.0.1 external edit
+++ programming:makefiles [2013/09/19 16:41] (current)
@@ Line 2: / Line 2: @@
 Makefiles are very useful to automate compilation of multi-file projects in c/c++ with Linux.
+===== Syntax =====
+  * variables:
+<code>
+<VARIABLE>=<string> # init
+$(<VARIABLE>)       # get content
+</code>
+  * targets:
+<code>
+<target>: <prerequisite-targets>
+	<code-to-execute>
+</code>
+  * template targets:
+<code>
+%.o:%.cpp
+	<code-to-execute>
+</code>
+  * automatic variables ([[http://www.gnu.org/software/make/manual/make.html#Automatic-Variables|complete list]])::
+    * ''$@'' : target
+    * ''$^'' : list of requirements
+    * ''$<'' : first requirement
+    * ''$(MAKECMDGOALS)'' : make argument
+  * functions ([[http://www.gnu.org/software/make/manual/make.html#Functions|complete list]]):
+    * ''$(subst from,to,text)''
+    * ''$(filter-out <list>, <list>)''
+  * **Mini Example**
+<code>
+COMPILO=g++
+SRCSCPP = $(wildcard src/*.cpp)
+OBJS = $(patsubst %.cpp,build/%.o,$(notdir $(SRCSCPP)))
+prog: $(OBJS)
+	$(COMPILO) -o build/$@ $(OBJS)
+build/%.o:%.cpp
+	$(COMPILO) -c -o $@ $^
+</code>
 ===== Example =====
@@ Line 56: / Line 97: @@
 	$(COMPILO) $(FLAGS) $(INCLUDE) -o file2.o file2.cpp
 </code>
 ===== pkg-config =====