If I would normal compile using the following line:
Code:
Where should those library flags go in a makefile? Say I having the following makefile:
Code:
all: ${PROGS}
clean:
I have problems with linking object files.
This is what I get:
I'd like to create a target named "debug" or something similar which will use some special optimization flags useful when debugging (for example -ggdb). At the moment my makefile is neat (which I like) and looks like
Code:
SRC = $(wildcard *.cxx)
OBJ = $(SRC:.cxx=.o)
INCDIR = -I.
LIB = -lm
[Code]....
The following is my Makefile, I wanted to add a staic library named libtimer.a. I'm using the following Makefile. Please let me know how to add this static library:
Makefile:-
Quote:
all:gcc -Wall -lrt -lm -pthread usbserialapp.c usbserialinit.c environ.c -o usbserial
It produces "usbserial" executable.
I would like to set run time library path in my makefile, so that my exe should search run time libraries in that path when executed. How to set this in makefile?
View 3 Replies View RelatedI am executiong a instruction, ADD CX, BX ;which affects the (carry flag) CF =1
Now, my question is when (CF =0) it will be reset ?
Is there any constrains for other flags/instruction to reset FLAGS?
I'm reading about shared, static, and dynamic libraries. What is SDL? Is it static, shared, or dynamic?
I always thought a library would be a lot of .h and .cpp files compiled separately into .o files and then if you compiled your own program you could use the -l parameter to link the library and it was all compiled together. Now I'm not so sure.
I don't even see any SDL .cpp files in my system anywhere. All I have are lots of SDL .h files in /usr/include/SDL and I don't really understand the code in them.
I'm making a wild guess here: SDL is a shared library. SDL itself is NOT compiled into my program, therefore SDL must be on any system my program tries to run on. When I compile and link SDL all it needs is the header files to know what SDL function and objects it can use. And then on every system it uses an already compiled SDL shared library thingy somewhere.
So... where is that part of SDL? All I can find are header files.
I'm thinking the advantage of shared libraries is that someone could say update SDL on their own system and take advantage of the new features without having to download new executables with the new version of SDL compiled into them for every program that uses SDL.
So if I'm making an editor and a game engine and they both use a lot of the same .cpp and .h files that I wrote and I'm tired of updating one and then the other and I need to turn them into a library, then a shared library might be kind of a silly solution. I could just make a static library. Right? Because it's not SDL. Nobody else is ever going to use this library.
I cannot seem to find any good documentation on the role of flags -Bdynamic and -Bstatic in g++. The man pages are not very helpful either.I found an example on the web:"gcc object1.o object2.o -Wl,-Bstatic -lapplejuice -Wl,-Bdynamic -lorangejuice -o binary".According to which -Bstatic instructs the linker to statically link
the applejuice library and to dynamically link the orangejuice library. If orangejuice uses the applejuice library anywhere however,the applejuice is also linked dynamically. Is it correct to assume that this is correct and describes the true functionality of those two flags in gcc? (ie: Bstatic and Bdynamic are used for mixing static and shared libraries during linking)Is it correct to assume that the same applies to g++ as well?
I have written a regular expression (tested in regexpal and regextester alpha something) with which I want to replace something like code...
but it only matches functions which occupy one line only, despite my tests showing multiple line matching in javascript testers online and using the m and s flags (which should make it multi line no?)
I am writing a C program which is contains Mysql header files and APIs but it can not compile it and its error is : Quote: undefined reference to
to all of Mysql APIs that I included their headers .In command line I compile my source like this with no problem: Quote: gcc test.c -Wall -o test -lz `mysql_config --cflags --include --libs`
I think code block does not have bold italic part of this command. How can I add this to code block to compile my project or those project that contains Mysql APIs (just my project not all of defined projects that has no relation to mysql APIs)with this gcc flags.
I am writing a C program which is contains Mysql header files and APIs but it can not compile it and its error is :
Quote:
undefined reference to
to all of Mysql APIs that I included their headers .In command line I compile my source like this with no problem:
Quote:
gcc test.c -Wall -o test -lz `mysql_config --cflags --include --libs`
I think code block does not have bold italic part of this command. How can I add this to code block to compile my project or those project that contains Mysql APIs (just my project not all of defined projects that has no relation to mysql APIs)with this gcc flags.
I just downloaded slackware 13.1(x86) and i'm trying to compile ndiswrapper-1.56 using the slackbuild from slackbuils.org and i'm getting this error:
Code:
Makefile:535: /usr/src/linux-2.6.33.4/arch/i486/Makefile: No such file or directory
make[2]: *** No rule to make target `/usr/src/linux-2.6.33.4/arch/i486/Makefile'. Stop.
make[1]: *** [modules] Error 2
make: *** [all] Error 2
looks like the folder i486 doesn't exist
How can we convert a dynamic library (filename.so) to a static library (filename.a) using gnu gcc . Can we get a static library form a dynamic library . I saw a few post in which the conversion form a static library to a dynamic library is mentioned but, unfortunately, not the other way.
View 4 Replies View RelatedI want to define _LINUX in my makefile which I would be using in my source code like #if _Linux. I do not want to #define _Linux __linux__ in my source code.
View 2 Replies View Relatedat present I compile the same code for different systems (cross compilers)I need to call libs and include paths for the different processors. At present I simply comment out the paths not needed
eg
#INCDIR = -I/cross1/.......
#INCDIR = -I/cross2/.......
[code]....
I am a beginner in Linux. Never did any kernel programming in Linux/Windows before. I am now on a project and I am supposed to understand a Linux Device Driver Code. It contains 6 .c files and 1 Makefile.
The make file goes as this:
I have a.c b.c c.c d.c d.c e.c f.c in the director along with the Makefile mentioned.
I am using Fedora Red Hat Linux 32 bit.
How to compile the Makefile.
How to create a simple Makefile using C....
View 3 Replies View RelatedI'm trying to figure out how Make handles directories.
How can I modify this makefile so it will put all of the .o files in a separate build directory?
Code:
But make ignores this and still puts main.o in the base directory. And if I refer to the build directory in the dependencies for bandit, make complains about "no rule ..."
I want to keep main.cpp in the base directory, all other sources in the src directory, and all object files in the build directory.
When I put a "test" target in my Makefile containing
Code:
@echo "CXX= $(CXX)"
it tells me "CXX= g++".
But I have nothing in the Makefile assigning any value to CXX, and as far as I can tell I have no CXX environment variable (no "CXX" appears when I run the shell command "env", and "echo $CXX" returns a blank line. So where's the g++ value coming from. Is this just built into Gnu Make, or is there a configuration file for make somewhere?
I am trying to run a script to setup environment variables and then run other commands in a make file. But the source or the dot operator (shell is bash) does not seem to take any effect as the subsequent command didn't pick the environment up. Do I have to put every lines of the environment setup in the first script into the makefile instead?
sample setenv.sh
#!/bin/sh
export MYDIR=/somedir
sample makefile:
all: source ./setenv.sh
echo $(MYDIR)
I'm learning about how to write Makefiles, and am a bit lost at how to run a command in a target depending on the value of a variable.
What I'm trying to do, is run "strip" only if the user is running a given version of a C compiler.
Here's the code:
Code:
$(LUA_T): $(LUA_O) $(LUA_A)
$(CC) -o $@ $(MYLDFLAGS) $(LUA_O) $(LUA_A) $(LIBS)
#FDPIC ELF binaries can be stripped, but not FLAT binaries
$(if($(CROSS),bfin-linux-uclibc-),
$(STRIP) $@
;)
Does someone know the correct way to do this?
I am new to automake. When running automake command, there is an error "cannot open > py/Makefile.in: No such file or directory". How to create that file? And, what is that file for?
View 1 Replies View RelatedI am trying to use a software package written in ANSI C. It has a makefile which has to be executed first.
As soon as I execute it I get messages like: line i: command not found.
Commands for which I am getting errors :
CC = /usr/bin/gcc
GCCFLAGS = -c -Wall
ROOTDIR = .
My gcc compiler is located in the above directory only. In ROOTDIR also I tried giving the path in which all the required files & folders are present but still I get the command not found error in all the lines.
I created a quick makefile with the following lines:
Code:
$(BINARY):
echo "----- Linking $(BINARY)----"
gcc -m32 -g src/* -Iinclude -I$(HOME)/include -I$(HOME)/include2 -D_LINUX -DSYSV -DPOSIX -L$(HOME)/shared/lib32 -lidlib -lid2lib -o bin/sampleapp
echo "---- done ----"
It builds fine when I build from the command line ( make -f sample.mk).
However, it does not build when building from eclipse (which essentially calling the same makefile). The make output shows exactly the same as what I got from the command line build, except the last line showing
Code:
collect2: cannot find 'ld'
make: *** [sampleapp] Error 1
I am not sure why it tries to call "ld" when building from eclipse.
I'd like to write a Makefile for my CUDA/C++ code but I didn't know how things work with CUDA, I mean there is a nvcc compiler but I don't know what I've got to do with this.
Do I have to firstly run nvcc and then g++ or only nvcc to compile my CUDA/C++ code ? I found nothing on the web explaining such basic things .
So I have been trying for 8 hours to try to get the index of an element from a list in a Makefile. The problem is that after I get the index using all the methods I have tried, the index cant be used in the "word" function:
for instance:
$(OUTPUT2) : INDEX = $(shell echo $(OUTPUT2) | sed -r -e "s/[ ]+/
/g" | grep -n $@ | sed 's/^([0-9]*):.*/1/')
will create a variable INDEX defined specifically for each member of OUTPUT2, so that each output knows its index. Unfortunately, when I pass this $(INDEX) into word, it doesn't work:
$(OUTPUT2) : $(word $(INDEX), $(INPUT1)) $(word $(INDEX), $(INPUT2))
echo $(INAME) $(TMPBASE) $@
and I get the error:
Makefile:16: *** non-numeric first argument to `word' function: 'num'. Stop.
I feel like if I could just convert a string to a Makefile acceptable number this would just work....
im trying to write a makefile which contains :two cpp files and two header files. now i've put cppfiles in a folder called source whose path is: /root/workspace/source and header files in a folder called header whose path is:
/root/workspace/makedemo/header
my makefile is in the path:/root/workspace/makedemo my makefile was like this:
Code:
HEADERS = $(shell /root/workspace/makedemo/header ls *.h)
SOURCES = $(shell /root/workspace/source ls *.cpp)
COMPILERFLAGS = -W -Wall
DEBUGFLAGS = -g
[code].....
im sure that i've given the correct path but it is showing errors like this:
[root@localhost makedemo]# make
/bin/sh: /root/workspace/source: is a directory
/bin/sh: /root/workspace/source: is a directory
g++ -W -Wall -I. -o output
g++: no input files
make: *** [output] Error 1
I know how to manually writing a makefile for my project, but I am new in using makefile & configure file generation tools like automake to generate a makefile and a configure script file.
I had done research on tutorials for generating makefile and configure script file.
I know that I need to manually write two files (makefile.am and configure.in).
I use wxWidgets GUI library, libconfig library, and libpcap library to do my project.
wx-config is a tool that can return the library files and include directory for wxWidgets library.
When using g++ to compile my files, I need to add in this line "`/wxlib/bin/wx-config --version=2.9 --static=yes --unicode=yes --debug=yes --libs`"
How to add that line to the makefile.am file?
I'm trying to make recursive makefile work but it's giving me two problems. I have a top folder with the main Makefile and one Makefile for each sub folder 'one' and 'two'. Makefile in subfolder 'one' and 'two' are identical. The top Makefile (still a bit messy) looking like this:
Code:
# Directories
CC = gcc
CFLAGS = -Wall -Wextra
TARGET_DIR = bin
MAIN_FILE = one.c
[Code]...
I've been trying to work out a way to stop chunks of code being compiled using a variable in my makefile but can't work it out. What I mean is for example in my code I might have.
/****output comms portdata********/
printf("
debug comms port %d",ReadPort("ttys1);
I only wish this code to be compiled when I'm debugging. What I've tried is using #ifdef with
#ifdef COMM_PORT_DEBUG
printf("
debug comms port %d",ReadPort("ttys1);
#endif
Then in my make file I set COMM_PORT_DEBUG to 1 so
DEBUG_DEFS = COMM_PORT_DEBUG=1
I then thought I could put it into my in my link line
all: $(CC) $(CPFLAGS) $(DEBUG_DEFS) $(INC_PATHS) $(SOURCE) -o $(PROGRAM) $(LIB_DIRS) $(GAME_LIBS)
but this gives a
gcc: COMM_PORT_DEBUG=1: No such file or directory
is there a way to do this sort of thing? Or am I barking up the wrong tree?