Makefile include url. Provide details and share your research! But avoid ….

Makefile include url c -lm -o fourmi. If it's in -I directive, it should be #include <json/json. So there is some advantage to having matching pattern. o as Details depend on your makefile and on the libraries you want to include in the link. I want to include a makefile from an outside library in my own software's makefile. Just add: #include <stdio. depend Now, here is the problem, when ". However, that has a strong genetic resemblance to this code, including the UFLAGS option. There are 2 steps required in order to make things work. a file in directory1. o #etc all: $(PROGRAMS) Eigenvalues: $(Eigenvalues_OBJS) $(CC) $(CFLAGS) -o $@ $^ $(LFLAGS) # delete the $ ls -1 another_file index. PHONY to The code I have written to achieve this in makefile is as below: dirs:=$(root_folder)/*/ SOURCE:=$(foreach dir,$(dirs),$(wildcard $(dir)/*. Assume that the current path is arbitrary and you have no control over it. make all I get . My point about the linked docs is that they do not say that changing override CPPFLAGS += -MMD include $(wildcard *. If additional directories are specified with -I options after the -I-, those directories are searched for all ‘#include’ directives. It depends. Without the directory prefix all it takes is two different libraries with a socket. h> even when file. You should #include "Point. depend: rules for buiding . list: @grep '^[^#[:space:]]. The make program knows next to nothing about C++. How do i add this library to my Makefile? Because I use NAME and VERSION in both *. o and Point. inc in the root source directory To use a relative path, you just include the relative path, without any file: scheme or //. Is there a variable/macro/something where I use the target name to include *. so (shared on most variants of Unix, but Mac OS X uses . B. h> Somewhere close to the top, before any function definitions etc. h . It was not that problem but the problem is that the header file is in include folder and it is not getting included in src folder Makefile2 so I think I am wrong in "inc" variable usage. 3. depend" does not exist, I can't run "make depend"; I have to do "touch . About; Press; Work The behavior you describe can't happen so there's something you're doing that you didn't describe here. 0 libfusion-1. Suppose I have main. The directive is a line in the makefile that looks like this: The directive is a line in the makefile that looks like this: They control the behaviour of make for the tagged command lines: @ suppresses the normal 'echo' of the command that is executed. In a make recipe ALL lines that indented by TAB are passed to the As you might guess from the title, RCMH argues that including everything into a single makefile ("non-recursive") is preferable to running submakes ("recursive"). I realize you're trying to work with the settings from the As already mentioned here, the thing you probably want is the linker option -rpath. c are in the top level directory and all header files in an include directory. c into a libfoo. cpp) $(info $(SOURCE)) nothing: @: You don't really have to put your source code anywhere in the /openwrt/ folder. The notdir function strips off everything up to and including the last '/' in a filename. c in directory2 which uses myheader. How can these included makefiles get to know the path to themselves relative to the main makefile? An example structure is as follows: main make: include . C files to . 2 Makefile - include path in separate file. make -f makefile Specifies a different makefile. Step 2: we generate a list of source files, and print it out so that we know that it's correct. mak: # Dummy Makefile !include <win32. env) endef Your problem comes from the fact that the component. It should just be: include CentOS6_Makefile. a files by *. h> does in C: it inserts the contents of Makefile. The first dependency is hello. Please show the exact include line you have, the exact compile line you run, and the errors you get. /MyFile. Either way, this is a different problem. h and Directly related to this question. but in more advanced files your command would include special targets such as . Like that, you can set a default search path for the binary. Here is the line : $(CC) $(CFLAGS) -c fourmi. Get the files locally. I can't excute the function from the shell for testing. in the "include" directory). In general that means that you must supply all object files that contain functions that are used in main. The last filename in that variable will be the current makefile, as long as you check it before you include any other files. env-example file to your repo. o. ISeeYou I am not sure why I was convinced that a variable must be defined before it is used. c files here └── Makefile In theory you should be able to add those flags to the MAKEFLAGS variable in the makefile itself. The default makefile names `GNUmakefile', `makefile' and `Makefile' are not checked automatically if you specify `-f' or `- When using GNU make, relying on ‘ VPATH ’ to find the source file will work in the case where there is a single dependency file, since the make automatic variable ‘ $<’ will represent the Really, it's better to use the CXX and CXXFLAGS variables, if you're building C++ code. Each defined target and each resolved implicit rule will be there, including its location in a file, e. To indicate in which directory the header files are simply add -I<path> to the CFLAGS make variable where <path> is the path to the directory. o files (not the . Stack Each include may be a local relative path to the include makefile directory, a direct URL to the makefile, or from a git repository. Please suggest solution how to include the header file which is in include folder. d) -MMD allows to build . d distclean: clean $(RM) tool They are probably overriding the configure test code compiler parameters. ; ENVFILE = . /cosi_rand/random. The mechanism relies on a makefile include directive to import the computed dependencies. My current project involves using an informix DB api and i need to include header files in more than one nonstandard dirs. prevent pip from downloading packages from PyPI to protect against package spoofing, then you won't be able to solve it locally via flags and need to configure the private index accordingly. Is this possible? GNU make's documentation provides a good solution. recommend devpi as it has package spoofing prevention turned on by default and point --index-url to your private index, so it can decide itself whether Makefile - include path in separate file. This doesn't cause any problems because the CFLAGS variable is not used by your makefile, or by the implicit rule for compiling . First, I recommend checking if the . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Because the . One possible reason (as stated by one of the URLs in the question) is that MS is encouraging MSBuild usage. Is there a syntax so that all the sub directories are /child1 parentFolder/child2 parentFolder/child3 There are header files in each all subfolders Using -I option in makefile for header file path, i have to use HEADER_PATH += -I. Running make with the following Makefile will instantly exit: a = $(shell sleep 3) Running make with the following Makefile will sleep for 3 seconds, and then exit: a := $(shell sleep 3) In the former Makefile, a is not evaluated until it's used elsewhere in the Makefile, while in the latter a is evaluated immediately even though it's not used. gz include Makefile. stamp (with the null command) is there to prevent Make from reporting non-existent prerequisite. An include of both files generates an "overwriting previous assignment" warning. cpp doesn't match your list of objects. o foo. PS: My analysis mostly includes python and R scripts and some command line tools. mk based on the target tamas can you tell me the way to create a library a static library in makefiles i want a library named as gola. In each source dir put file 'files. txt: echo "test. echo '#include "${DISC}_header. o *. d files are also included makefiles. txt" > test. linking and compiling with Makefile. d #We don't need to clean up when we're making these targets NODEPS:=clean tags svn #Find all the C++ files in the src/ directory First, your syntax for including files is wrong. If you have one makefile including another in a different directory, PWD and CURDIR aren't updated for the child makefile. h. However it is important that you put your OpenWRT-specific Makefile in the /openwrt/ tree. The shell gets around this by not forking a new process when source'ing, but just running those commands in the current incarnation of the shell. I did try the -include first, but I had issues with hard to diagnose errors, so I changed it. Makefiles are nothing more than a way to run certain commands when certain files are out of date. The FetchContent_* commands simply fetch content or metadata from a particular external resource, and populate CMake variables; they do not actually perform any configure, build, or install steps. /demo/makefil How can I create a variable on-the-fly from makefile, the value of which would be the entire contents of another data file. How to write that ? Havent found anything on the net, probably because i did not use good search terms Make sure that the -L option appears ahead of the -l option; the order of options in linker command lines does matter, especially with static libraries. 0. . stamp target are intentional, timestamping is used to ensure the commands for include. However, if that is not a concern, you could still use the shell function to execute commands to get paths of another Makefile to include: $(shell pwd) I did something similar for a project that benefited from having the same Makefile used in many places, using git rev-parse --show-toplevel. You can provide command line arguments to make to control which files should be recompiled, or how. a (static) or libmine. The make program uses the makefile data base and the last-modification times of the files to decide which of the files need to be updated. I've seen a makefile include <system>. See Including Other Makefiles. Makefile: include: wget <tarball with another Makefile>. cannot find -llib1. mk' with list of source files and compile options for some of them. a/. Feel free to use your own variable instead, and ensure it's used appropriately in When you say this: include . C++ requires that a given symbol can only be defined once i the lifetime of your project. a make just pulls Makefile. The include directive tells make to suspend reading the current makefile and read one or more other makefiles before continuing. – @JohnDibling I disagree that C++ is orthogonal to this Makefile. h> otherwise #include "include/json/json. LIBS = -L$(LIB) -lfuse -lsqlite3 -lkw_taglib -ltag_c -ltag -Wl,-rpath=. By coincidence you've used one of the variables that the built-in recipe uses (CPPFLAGS), but make makes no use of INCLUDES. These include: Reading There is no such thing as an "array" or list variable in make syntax. For the compiling rule where the . And I'm wondering whether there is a way to avoid setting a toolsPath variable. make always tries to re-build the included makefiles but you cannot force an order on this. The second line just uses them. A makefile is not a shell script. I still haven't found out which ones do, but my GCC wants them at the end, and in reverse order of dependency: if random. o $ cat other. I think you're mixing up two different paradigms here. You can set If you need full control of include paths (or if you can't prepend $(MYDIR)/ to each include statement for some reason), you can achieve this by writing a Makefile that runs make All the makefiles are effectively concatenated in the order specified. As you noted, the highly flexible ExternalProject module runs its commands at build time, so you can't make direct use of Project A's import file since it's only created once Project A has been installed. This ends up stripping off everything but the final directory. (GNU) make has a feature Remaking Makefiles that can be used for scenarios like this, but your approach is wrong. /Makefile. g++ -MM <your file> will generate a GMake compatible list of dependencies. In the Makefile, create v_header. c. o) is not what the rule will actually produce (obj/foo. include file-include file sinclude file. mk files, I can't do an "include" of both *. o: @echo Building $@ Output (note it contains both implicit rule and targets expanded from that rule): Libraries are usually first built and installed to your system, so you can later add them to what seems to be LIBS in your Makefile (let's say your library's called "foo", -lfoo). (Note that you omit the lib prefix for the -l command) Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog You can use the MAKEFILE_LIST variable to obtain that. h"' or ''. d) and through the cmd windows it say: E:\A_1_Projekt>make clean makefile:394: no file name for `-include' Cleaning project: rm -rf obj rm -rf docs/html So my question is, what does this line means ( no file name for `-include') and how can i fix this? The -f flag in make is defined as follows,. You should either create a new question or at least edit your question with the new You told the Makefile that include/header. depend; make depend" Say a makefile includes multiple other makefiles. make -I foo does work. The professor made us download GLAD and GLFW, but we didn't see how to include and make everything work in VS Code using the makefile (we use the makefile and the mingw-w64 compiler on Windows 10 64 bit). There are some GNU make functions which will operate on every word of a string, one at a time, where a word is a space-separated value. You must link against the compilation unit inc. mk are always executed, time. git, svn, . Lots of people still swear by hand-crafting your own config script -I- Split the include path. mk' for each value of SRCDIR. I am not sure if putting your Makefile in /openwrt/feeds/package is correct but I put my Makefiles in /openwrt/package/[name] folder I faced the same issue and here how I solve it. inc files for system specific settings. It is also used to share common makefile code I am programming for a big project, so I cooperate with others. suffices to perform all necessary recompilations. c -L/usr/local/lib/ -lYARP_SO as noted by swair. How do I specify -rpath in my makefile. $(dir $(realpath $(lastword $(MAKEFILE_LIST)))) Writing a makefile. A directive is an instruction for make to do something special while reading the makefile. So you've got two options: The "this actually deserves the name library" path: Find or write a Makefile to turn foo. PKG_SOURCE_URL: Path to a download directory or source control repository (e. But you're still running the rule, which means that something is still trying to build main. MAKEFILE := $(shell git rev-parse - Is it enough to replace the *. d), which will hold (in Makefile syntax) rules making the generated file (%. h files here ├── lib/ │ └── all third-party library files (. : $ cat Makefile include other. o compilation. – For the sake of recording history, this answer does not work with gnu make 4. , do the assignment right now with expansion. h I have been trying to add this static library file but it says. h gcc -c $< -o $@ Here, hello. all: recursive $(MAKE) -C componentX # stuff for current dir or. To make the directory easily managed, my directory is like below: project: --include (header files from others supplied for me) --lib (libraries from others supplied for me) --L3_CVS (this folder include all my files) -- Makefile -- sourceFile (all my source files here) -- include_private(all header files used I am trying to write a make file for the following program MY file/folder structure is as follows Folder/File structure . mk\n" > foo/bar. d files are included by the makefile, they must exist for any target to be made, including clean. h" in both main. DOWNLOAD_DIR <dir>. md wrong_path_to_another_file @echo $@ $< Although I do have index. tar. I would like to have a single Makefile in the main directory, that calls each subdirectory's Makefile. o: hello. Directory in which to store downloaded files before unpacking them. But you have to understand your makefile to be able to modify it sanely. mk: No such file or directory. another way to get this effect is to use a make "include" of another makefile: From Makefile: include ". That's what $< expands to. I do not want to run the other makefiles when the target is not needed because it means the makefiles are generated Include Makefiles. That means the object file gets recreated automatically whenever relevant sources Unfortunately, this kind of thing is why the abominable system known as "autoconf" got created in the first place. Depending on the Makefile, it will often use a variable like CFLAGS, LIBS or LDFLAGS to pass extra options to the compiler. This directory is only used by the URL download method, all other download methods use SOURCE_DIR directly instead. Makefile. h is part of the package, so to compile them, I must set the include path When you compile without the -c flag, gcc tries to link the program. I know this is possible if I manually list the subdirs, but I would like to have it done automatically. cpp files are not getting included to the SOURCE variable with this implementation. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I'm trying to in the makefile there is written: # Include the dependency files -include $(wildcard $(OBJDIR)/*. Before autoconf, you would hand-craft a config script which is easy enough to do if you are fluent in the common-subset dialect of /bin/sh that works on every unix-like platform where your code might run. Before you compile, you need to make sure that the correct . o files are gohh. That's exactly how it is in Android NDK. I think my approach is wrong. I want to add on to that target in my new makefile so I can delete some specific files, but if I add a clean target in my makefile, it just overrides the old one. I'm writing a simple code following an OpenGL guide: Well, then, you must be defining these functions/symbols in some header file which is being included in multiple source files. The point about $(PWD) above is true. -means ignore the exit status of the command that is executed (normally, a non-zero exit status would stop that part of the build). md makefile Whereas my makefile looks like. *//' env/$(1). EDIT: Include directory is taken from current directory, so in main/ you have to use -Itools/include. New to C++; Basic understanding of includes, libraries and the compile process. Here is the makefile I used for this. However, what I want is to include these "sub"-makefiles on base of a selected target. It is also common to have project settings in . /demo/utilities. depend I also have a . So, when your modified tag file is created / updated, it is too late for make to consider its last modification date and use it to decide whether other targets shall be built or not. I used to manage them all with a script but I find myself implementing stuff that is better done with make. For sure, a well written Makefile should also include clean and distclean rules: clean: $(RM) *. h and a static library libmylib. override variable-assignment. Then you will need to add -L<path to lib directory> to the link step of the Makefile so that -lrtmidi will find the library file. Your problem is probably that make builds the dependency graph before running any recipe. Instead, when you include a file, make first checks for rules creating this exact file and executes them. It's a configuration file for an expert system. However, an explicit assignment in the makefile, or with a command argument, overrides the environment. mk . PHONY: print_paths print_paths: @echo $(dir1) && @echo $(dir2) make1. Optionally, you can enable additional features by setting precompiler flags or linking VASP to other libraries. o: %. I use something like this: # Add . Your first observed behaviour (fails to check the URL if the target is up to date) probably corresponds to Include Makefiles. *:' Makefile It will give you a list of the defined targets. o bar. so files in the makefile, but it seems like when I do that the program uses the original glibc (rather than my modified one). For each of those files, it issues the recipes recorded in the data base. (If the ‘-e’ flag is specified, then values from the environment override assignments in the makefile. If you add -I/foo to the compile line all headers will be searched for in /foo before any system directories. The command line you show in your comment above gcc -c main. 4. The include directive tells make to read one or more other makefiles. env-example # Create the . Currently all my source files . ; Second, feel free to add the . Now, let’s delve into more advanced topics that can help you manage complex projects efficiently. You can also Anyway, I made little hack to extract the targets from a makefile, which you can include in a makefile. test. Provide details and share your research! But avoid . If you do this then you don't need to define your own pattern rule for %. /parentFolder HEADER_PATH \$\begingroup\$ The timestamping and the time. env,env/integ. since this html code is interpreted by a browser, the Make sure you organize your project directory like this : root ├── include/ │ └── all . If you want to make sure that make rebuilds your program correctly when you edit files, you should explicitly declare main. 0 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I have a "lib" directory in my applications main directory, which contains an arbitrary number of subdirectories, each having its own Makefile. The directive is a line in the Include another makefile. h but you did not tell the compiler where such headers live (i. From Communicating Options to a Sub-make:. from_tarball echo ${VAR_ONLY_EXIST_IN_TARBALL_MAKEFILE} I would like to do like the above where i want to include a Makefile upon running a target. A pathname of '-' shall denote the standard input. The order of link options on the command line is significant, especially for static objects. In main 'Makefile' define SRCDIR for each source dir and include 'makef. This answer is specially developed for the novice programmer in cpp. Makefile: The $@ and $< are called automatic variables. One way to fix it would be to put something like the following after your list of objects Below I assume a Makefile similar to the Makefile in the original question which generates dep files using the compiler and includes them. Diagram provides a structural overview of a Makefile, showing how targets, prerequisites, and recipes are typically organized and Therefore, when the parent-Makefile, exports some variable, then for that build-environment, the exported variable will be visible to all the sub-directory Makefiles. I have not found a quick reference link to a POSIX document for this, nor do I know off-hand which make variants support ::= assignment, although GNU make does today, with the same meaning as :=, i. env) $(eval export sed 's/=. a and the . It is necessary to customize it anyways to set appropriate paths etc. mk %. Having the directory there provides a namespace which is often critical. so files) here ├── src/ │ └── all . html %. g. Any directories specified with -I options before -I- are searched only for headers requested with #include "file"; they are not searched for #include <file>. cpp at all: make's built-in rule will do it for you. Your makefile is not the root one from the make invokation - it's included. COMPONENTNAME:=ISeeYou Now, when I run . You have two options to do what you want: Make is using its built-in rule for compiling C++ files because your pattern rule $(OBJ_DIR)/%. Then, use the CFLAGS make variable in your compilation command. So before clean can do the right thing, the dependencies must be I have prepared two scripts. mk include dir3/dir4/dir5/make2. There can be multiple instances of this option, and they shall be processed in the order specified. If that second makefile needs to know where it is, the following will tell you. Note that many systems for makefile building have a mechanism for setting CFLAGS faintly similar to this - and simply assigning to CFLAGS undoes the good work done by the system. makefile. all: index. Update: The presented makefile clarifies that the issue is not about getting the library included in the link, but rather about the semantics of the link command. mk\n" >Makefile; printf "all: ; @echo in bar. Only the makefile location is known. Project Dir/ Core/ Lib/ lib1. inc files, when there are multiple sub-makefiles for a project (one per directory). It is possible to just do rm -f $(OBJ) (it's never -r, the arguments are always files, not directories), but if you delete a source, the object will not get cleaned afterwards. but because I need to make file with " make -C /src/kerneles/$(uname -r)/include " it doesn't recognizes the other liabries that the functions declared in for example there is two time. You should include the header in your C file. cpp and Point. The C preprocessor reads include files, before the resulting file is compiled by the compiler. d files that contains Makefile fragments about headers dependencies. C. + means 'execute this command under make -n' (or 'make -t' or 'make -q') when commands are not normally executed. adding -c to the CFLAGS is wrong, the implicit rules for compiling . But maybe I should give a little context. env) @echo " - setup env $(ENV_FILE)" $(eval include env/$(1). The -L option specifies a directory to be searched for libraries (static or shared). If not what is the correct way of doing so. Tell make to Including Other Makefiles. html, and want to refer to other_file. INCLUDE_DIRS += foo\ninclude bar. c bears no relationship to the makefile you posted here, so either you miscopied it into your comment or your makefile is different than the one above. c files already include -c, just as the implicit one for C++ files includes -c. In a university course I am attending, we are starting to work with OpenGL. The variable $@ represents the name of the target and $< represents the first prerequisite required to create the output file. a header1. Any help in this matter will much be appreciated. The basic issue is that a child process can not alter the parent's environment. h header file and you're in trouble. Assuming sub-makefile1 sets the variable Using GNU make, I want to include a file, except if the current target is "clean". For example: hello. a -lm Apparently some compilers permit -l to appear anywhere. About; Press; Work Here %. It must be '"path. Collecting files in a directory is good practice, and once you have it there it's redundant to add the library name as a prefix to every file See more details below about mixing macros and #include. Also, it's better to use the CPPFLAGS variable to hold preprocessor flags, rather than INCLUDES. But you provide an implicit rule for converting . mk You can run GNU make with -p option to dump parsed Makefile. 0 libdirectfb-1. export I disagree completely. I am building a project that requires an ecosystem of projects (linux, qemu, uboot etc) most of which are in git repositories. In main 'Makefile' one can define compile options and exclude files for each value of SRCDIR. all: recursive cd componentX && $(MAKE) # stuff for current dir recursive: true It may be wise to put settings for each Makefile in a Makefile. h or types. Specifically an expert system that knows, if you tell it, how to efficiently create files and their dependencies with a minimum of re-making files that don't need to be remade. I have a precompiled static library file lib1. env ENVFILE_EXAMPLE = . mk is adding options to CPPFLAGS, why don't you simply use target-specific variables, instead, and get rid of Hi Following is the full procedure to add boost to cmake/make file. If you want to include Project A's import file, you'll have to install Project A manually before invoking Project B's To complete previous anwswer from meuh, if you would like env file to be dynamic, you could define a setup function. inc is used for the system that you are on. o which you obtain by compiling inc. This is what $@ expands to. 3 Including Other Makefiles. In previous projects, I hardcoded all compile tasks in the Makefile: all: compile_a compile_b compile_c compile_a: ${CC} ${CFLAGS} ${A_SRC} -o ${A_OUT} and This makefile includes the Makefile at the TOP level. h"' > v_header. The MAKEFLAGS variable can also be useful if you want to have certain options, such as ‘-k’ (see Summary of Options), set each time you run make. h". mk files. Also try and see if configure doesn't already have an option for overriding libgif. 0 libpthread. cpp)) But the . You can either use an -L<path> flag to tell GCC about the location of any library, and then include it with -l<libname>. For example this would be $ gcc -o main main. cpp. Include another makefile. a with *. txt endif But for that, I need a variable whose value is the target given on the command line (here named $(TARGET)). a inside the following folder. In directory2, I'm writing a program which uses them. so, install that, and then use LIBS= -lbsapi -lfoo, or I really can't get into makefiles. The md5sum is used to verify the package was downloaded correctly and PKG_BUILD_DIR defines where to find the package after the sources are uncompressed into $(BUILD_DIR). That is a symptom of confusion, which Conditionally evaluate part of the makefile. env file exists, otherwise the include will raise an exception. I added -MQ $@ -MQ tags to the A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT The simple makefile example shows a variable definition for objects as a list of all object files (see Variables Make Makefiles Simpler). c files, as you have!) that make up the application. Source directory into which downloaded contents will be unpacked, or for non-URL download -lm is a linker flag. cpp files. h lib. Note that VAR := The PKG_* variables define where to download the package from; @SF is a special keyword for downloading packages from sourceforge. c . d to Make's recognized suffixes. Conventionally, the list of these objects is put in a variable: PROGRAMS = Eigenvalues Eigenvalues_OBJS = Eigenvalues. N. It can be placed, let's say, in /Documents/[name] folder. o). The main arguments in favour of non-recursive make are performance and accuracy of cross-module dependencies (which also has performance implications for parallel builds). Stop. o hola. Within my package, some source files use #include <file. h must be present, and you told the C++ source file that it needs header. The -c flag generates To answer the question as asked: you can't. a to replace the include statement and keeps going. Includes are appended in order with the source makefile appended last, allowing latter makefiles to override the keys/values of former makefiles. nothing: @: We must test this, and get it working perfectly before we proceed. Questions; Help; Chat; Products. cpp Makefile $(CXX) $(CXXFLAGS) -MMD -MP -c $< -o $@ The -MMD flag generates the dependency file (%. Asking for help, clarification, or responding to other answers. dylib and Directory in which to store the logs of each step. PHONY, lines containing URLs, variable definitions that use :=, lines 1 The GNU Make documentation notes further that POSIX make added ::= assignment in 2012. So in my makefile I added -lm to the file in question. with gcc the compiler id familiar with the function usleep and nanosleep. The directive is a line in the You probably need to edit the Makefile appropriately. By including a header with the definition of a symbol into multiple source files you're defining it multiple times, exactly as if you'd copied into each It would be great if someone can explain or point me to another blog/stack answer that might explain the right way to avoid recursive makefiles by using include statement. As there are severe mismatches between your question and the Makefile you show (all file and directory names are different), let's restart from your Some are generated from $(evaled function calls that occur when including the makefiles of subdirectories (as this is a non-recursive make build system, as mentioned in the "Recursive Make Considered Harmful" paper). txt include test_folder2/test2. 29 Makefile: How to correctly include header file and its directory? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. it's kind of indiscriminate, making all sources prerequisites of every object, ; it often uses the wrong source (as you discovered with file1. 1. I'm using gmake and gcc -MM to track header dependencies, following the manual. mkdir foo; printf ". That includes these options: CONFIGURE_COMMAND; At work we use a common makefile that other makefiles include (via the include statement) and it has a generic "clean" target that kills some common files. c and not in db. o is the output file. –. h" At this time, the cpp grammer does not allow the usage of macros as part of the '#include' statement. The idea was that in the arch specific makefile will have all the src code from within the arch directory and the top level Makefile defines a variable which is simply the path of the TOP level directory, so that the arch specific Makefile can include code from the src folder in the top level. The first one is the main Makefile: all: @echo $(COMPONENTNAME) include ~/Projects/tests/mk And here's the mk file. Let me explain again. cpp to . 3. Stack Overflow. mk is an included makefile but the *. My end-goal is to include something generated by more complex scripts, so although I thank you Yet, while this would work, it relies on the including Makefiles to honestly tell the general file its own path. The simplest would be to figure out the CMake code for the Makefile equivalent of include ${dir}/makefile. See Conditional Parts of Makefiles. gz tar -zxvf <tarball with another Makefile>. a into the current Makefile in the same way that #include <x. If you want to add the boost library support with help of Makefile you need to specify library path (with -L option) and libraries (with -l option). o in this case) depend on the source file and any non-system headers it includes. h header2. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company As I see it, there are 3 completely different sources for include paths: External libraries that must be installed along with my package, which are configured by configure --with-XXX=<PATH>. Since the main function is most probably in the main. h file but woth diffrent code: 1. mk test2. d files are generated, I modified the compiler options to ask it to also make the tags target depend on the dependancies of the object file. creating a makefile. I would e. c (transitively). Alternatively, you can also supply the full path of the static library and compile directly, like Currently the package is downloaded successfully to the dl folder and even compiled in the build directory, but when I add the install section to the makefile I get dependency error: Package directfb_tutorials is missing dependencies for the following libraries: libdirect-1. 2. Background is, that the sub-makefiles define different object files and depending on these object files the target executable should be created. I have a Makefile which includes makefiles from sub-directories. include is a directive and can't be used in a recipe. include file from scratch is not easy, so we suggest taking one of archetypical files that closely resembles your system as a starting point. It's a line in the makefile that looks like this: include filenames This is particularly useful when you use compiler flags like -M that create Makefiles Including Other Makefiles. 1. SOURCE_DIR <dir>. The result is that make sees this when it starts figuring out what to do: a: @echo "a" all: a b c b: @echo "b" c: @echo "c" That's a different problem. 1 You need to pass a variable down to your "sub" Make process; perhaps something like this: $(MAKE) -C "$(LINUX_DIR)" CPPFLAGS="-Iinc" $(MAKE_OPTS) modules where CPPFLAGS is a standard Make variable that's used in the implicit rules. The file be cached in dl/. c, the linker fails when searching for the main function in db. In the first part of this guide, we covered the basics of Makefiles, including their structure and simple use cases. e. It's a line in the makefile that looks like this: include filenames This is particularly useful when you use compiler flags like -M that create Makefiles I have a header file myheader. makefile include *. Simply have the Eigenvalues target depend on all the . html', needed by `all'. o and file2. o something like that i want that to be created but using the makefile how to write that code to create library file could you please tell me in the form of makefile – If your use case is e. However, I use makefiles to automate my build process, and I'm not an expert when it comes to makefile magic. To do so I have to pass all C-files at once to the compiler frontend. mk Second, you cannot use makefile processor commands like include as part of a recipe (that is, indented by a TAB). mk; make results in Makefile:2: bar. How can I make the include directive in makefiles behave relatively to the location of the currently executing makefile. h file in other directory. That is, I want to do the equivalent of the following: ifneq($(TARGET),clean) -include somefile. You simply put a value for MAKEFLAGS in your environment. The argument makefile is a pathname of a description file, which is also referred to as the makefile. ] The include directive tells make to suspend reading the current makefile and read one or more other makefiles before continuing. so. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Every environment variable that make sees when it starts up is transformed into a make variable with the same name and value. So if you have a file index. Makefiles don't read include files. cpp, not a file named main. make: *** No rule to make target `index. See: make manual And the main In a standard Makefile, the CXXFLAGS macro defines flags for the C++ compiler. md where it should be and there is no mistake in the name of it, the message from make will be. The value of the variable is only in my project I need to use the math. You can compile these with implicit rules of make, no need to Step 1: we write a makefile that does nothing, but does it correctly. c hello. In a shell script, the NOT_SURE_WHAT_TO_PUT_HERE would be $1. SOURCE = $(wildcard source/*. Will be appended to PKG_SOURCE_URL. /dir1/dir2/make1. The only possibility I'm aware of is to use the MAKEFILE_LIST variable: CURR_MAKEFILE:=$(lastword $(MAKEFILE_LIST)) bye: echo 'whatever' hi: +$(MAKE) -f $(CURR_MAKEFILE) bye But note, as it is written in the official documentation, that the variable records all parsed makefiles, including the includeed ones. As in your case, the file you want to include already exists, you have to make this rule . Define a variable, overriding any previous definition, even one from the command line. o : %. Which can be included. Example: includes: # Includes a file in the same directory. As demonstrated by the answer, Makefiles have special "baked in" syntax specific to C++, and thus Makefiles do have an intrinsic relationship to C++, more so than FORTRAN, particularly when making use of these C++ specific flags as the OP does. Just use the make env prefetching. The directive is a line in the makefile that looks like this: I want to use the include directive only for a specific target. o As you discovered, the $(CURDIR) contains the path to the directory in which the makefile was run, without the final '/'. html: %. You will need to add -I<path to header directory> to this macro for the compiler to find the RtMidi header files. If all you expect from component. Is it possible to replace the $(toolsPath) in the included file with something that relies on make itself, rather than the including Makefiles? How do includee all libraries from a directory in a Makefile? Say I want to include all libraries in the directory /libdir, how would I do this? The result should be something like: INCLUDES = -I/ Common practice is to put a Makefile in each subdir with sources, then. mak> all: @echo Executing target: $@ ($(MAKEDIR)) According to your post, you have a file named main. SUFFIXES += . env file if not exit. dir1 = <some code> -I is a GCC flag, not a Make flag. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I want to include the parent directory as include path in make file for header files. o) ; it tries to build executables instead of stopping at objects, and ; the name of the target (foo. mak" Create a file "MyFile. env file with some content; define a method to load this; define setup_env $(eval ENV_FILE := env/$(1). Did a few simple makefiles yet. So I decided to migrate my script to a makefile. There are no parentheses around filenames in make's include directive. Absolutely. mk all: foo. See The override Directive. create env/local-dev. mak" with content: copy and paste this URL into your RSS reader. The -lname option specifies a library which is with libmine. Make will compile main. Basically every time make reads a new makefile the name of that makefile is added to the end of the variable, but no value is ever removed from the variable even after the makefile is no First, your $(OBJECTS) rule is problematic, because:. ) PKG_SOURCE: Name of the source file to be downloaded. And the include is after Now the makefile doesn't need it, and won't try to build it. @Katoch: Of course the pattern in clean needs to match the one used to generate list of sources. #include "v_header. o, as either an explicit target or a prerequisite of something else. Looks like you even already use -rpath in your makefile, but you specify the wrong path:. a needs libm, then libm should be linked in after Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. so files in the makefile. How should I modify the makefile if I want to compile (maybe even link) using just one call to GCC? For reference - my makefile looks like this: I am trying to write a makefile for a small scale application I wrote in C under Linux. Thus, any options related to these steps is explicitly ignored when calling FetchContent_Declare(). However, if you try to explicitly go inside "test" folder and attempt to "make all", then you will have to explicitly set the environment variable, prior to it (which in previous In my makefile, I have a: include . I tried to simply replace the *. Teams; Advertising; Talent; Company. It should appear at the end of the linker command: $(CC) -v -o $@ [email protected] $(ARFILE) . That works fine, but make is not /bin/sh (or whatever shell your script is for) and does not understand that I have a Makefile generated by STM32CubeMX for a project. cpp using its built-in rule for . html in the same directory, the "file://" url protocol can only be used to locate files in the file system of the local machine. Solution: Implicit rules were used so correct variable CXXFLAGS+=$(INCLUDE) must be set for compilation. mjywd qanb gbmz gnidh fjbpf pieikubh hqurvk ymra fqqrxkp wlyt