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- Dictionarymake/meɪk/
verb
- 1. form (something) by putting parts together or combining substances; create: "my grandmother made a dress for me" Similar Opposite
- 2. cause (something) to exist or come about; bring about: "the drips had made a pool on the floor" Similar
noun
- 1. the manufacturer or trade name of a product: "the make, model, and year of his car" Similar
- 2. the making of electrical contact.
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Call the make command this way: make CFLAGS=-Dvar=42 And be sure to use $(CFLAGS) in your compile command in the Makefile. As @jørgensen mentioned, putting the variable assignment after the make command will override the CFLAGS value already defined in the Makefile.
May 13, 2010 · From command line - make can take variable assignments as part of his command line, mingled with targets: make target FOO=bar. But then all assignments to FOO variable within the makefile will be ignored unless you use the override directive in assignment. (The effect is the same as with -e option for environment variables).
Sep 28, 2016 · If you modify Makefile.in to always define them, then you are making the assumption that your code is only being built on machines where those features are available. If you make that assumption, you should still add checks to configure.ac to confirm it, and have the configure script fail if the dependencies are not met.
Jul 12, 2011 · 12. You can create an empty two dimensional list by nesting two or more square bracing or third bracket ([], separated by comma) with a square bracing, just like below: Matrix = [[], []] Now suppose you want to append 1 to Matrix[0][0] then you type: Matrix[0].append(1) Now, type Matrix and hit Enter.
Aug 23, 2022 · This is sort of funny, but not really a good answer for a question tagged "beginner". Just to make it clear: In Python you usually use a data type called a list. Python has a special-purpose data type called an array which is more like a C array and is little used. –
Apr 26, 2010 · You can however change the value of a variable on the make command line. If you rewrite your Makefile as follows: ERLCFLAGS += $(ERLCFLAGSADDED) %.erl: %.beam. $(ERLC) $(ERLCFLAGS) -o ebin $<. test: clean compile compile_test. Then, you can invoke make to perform your tests using: make ERLCFLAGSADDED=-DTEST test.
Jan 11, 2010 · For GCC use -D define. OP commented below that he wants to pass the define into make and have it pass it on to GCC. Make does not allow this. Typically you just add another make rule to add defines. For instance 'make release' vs 'make debug'. As the makefile creator you make the two rules and have the defines right in the make file.
Nov 13, 2018 · 7. Let's say you want a replacement for #define MYDEF. In your makefile you have the compiler command line, something like (simplest example): g++ -o myfile.cpp. To get that #define for every myfile.cpp just use -D like so: g++ -DMYDEF -o myfile.cpp. answered Nov 13, 2018 at 19:33.
Aug 25, 2015 · are ignored by Make. Put simply, make ignores these 2 lines, within the define xx. else foo = 1 Because they are inside a define, and therefore, Make does not evaluate the else as a directive (i.e. as a else part, for ifeq "x" "y"). But, Make clearly parses that endef line (5th line in the ifeq block), as a directive to end the define directive.
49. If by configure release/build, you mean you only need one config per makefile, then it is simply a matter and decoupling CC and CFLAGS: CFLAGS=-DDEBUG. #CFLAGS=-O2 -DNDEBUG. CC=g++ -g3 -gdwarf2 $(CFLAGS) Depending on whether you can use gnu makefile, you can use conditional to make this a bit fancier, and control it from the command line ...
