Programming :: Generating Makefile Ans Configure Script ?
May 17, 2011
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?
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Sep 1, 2010
I have encountered some cases that the ./configure log says:
config.status: creating xxx/Makefile
but when make fails on:
...
make[2]: Entering directory xxx
make[2]: *** No rule to make target `all', Stop
...
and xxx/Makefile is absent in the disk. Why does it happened?
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Feb 24, 2011
how to generate excel charts from C, or if it's possible at all? For example, if I had 2 arrays that I wanted to export to excel and graph against each other. I know how to export it to a csv file, that's no problem, but I have no idea where to start with generating a graph of the data. I can't seem to find any examples anywhere. Just a simple example to show you what I mean: Code:
char arr1[] = {'a','b','c'};
int arr2[] = {10,20,30};
int main ()
[code]....
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Aug 4, 2010
Unfortunatelly since i have no background at all about GUI programming, i dont know even the keyword for that i want to generate a pop up window from my program (written in C) which show a message and an OK button. in my opinion, maybe i should use directly the Xlib library and not the GTK or QT library for example so the program can work almost on every linux system. A code snippet/hint for the pop-up window then?
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May 9, 2010
Im strugling with script that wil generate graph on demad. I put it in cgi-bin directory but cannot get it to work. i googled for perl generating images and tried few examples but none worked.
When I execute perl script in command line it throws picture i a bunch of characters so it creates it but wont show when I access it through a web page.
[Code]...
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Mar 9, 2011
I'm trying to write a program that generates a random number and then tells if it is prime or not. I have doe some research about how to calculate prime and random numbers but I'm still having trouble. I don't really get how to calculate a prime number. I know a prime number is a number that is divisible by 1 and and itself. how to calculate a prime number in C?
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Jul 23, 2010
I'm trying to understand how interrupts work. Is there a way to generate timer interrupts in C. Also can we enter into the protected mode of the CPU. Does OS (specifically, linux) place any restrictions on user programs entering protected mode. If it does not, do we just have an assembly language program which changed the mode, followed by the C code... I'm just trying to understand how things work at the lowest level. So I'm trying to write few snippets to test my understanding.
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Mar 19, 2011
I am trying to generate sequence of number in the order of :
1
2
3
4
[Code]....
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Apr 9, 2009
I want to write a function which calculates the space needed between fields, to generate a table with aligned fields, like when you type "ls -l", the operating system generates a table with beautifully aligned fields. I've got this code so far:
Code:
for line in $(cat tmpSearch)
do
line=`echo $line | tr ":" " "`
[code]....
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Oct 11, 2010
I am running some muti-threaded code that uses a lot of memory (~6GB). I have it compiled on a cluster that uses Xeon 5160 quad core CPUs with 4MB cache/core, 8GB of RAM and kernel 2.6.18 (x86_64) and I have also the same code compiled on another cluster that uses Opteron 2214 quad core CPUs with 1MB cache/core, 8GB of RAM and kernel 2.6.28 (x86_64). On the Intel cluster the code generates barely any system load when I look on top but on the AMD cluster it can generate over 50% of system load. On the intel machines my process can generate a constant load of 3, while the load generated by the process on the AMD machines is about 1.6.
Does anybody know what could cause this? Could it be the version of the kernel or the difference between the CPUs (for example, the much smaller cache of the AMD CPUS)? My software and all its dependencies are the same on both clusters. I am also using the exact same version of GCC to compile everything.
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May 12, 2011
I tried googling around but i cant find anything related to this: everyone seems just interested in random numbers, so when it comes to random letters there is a lack of informations. However, i am trying to figure out a wait to get a random letters string that matches a simple rule: it must be a sequence of consonant+vowel. So for example, these are some 6 letters strings i would like to obtain: wolupa, tafoke, zewevu, cupimo.
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Nov 7, 2010
I am trying to write a loop to open four main-data-files. At each open of the main-data-file, I want the loop to open another four sub-files and split the data from the mail-data-file according to the creteria and dump into the four files. When the loop goes to the second main-data-file, it shall generate another 4 sub-files with different file name. And the process goes on. That means I will have total of 16 sub files for the four main-data-files. Each four files from the 16 files shall have specific name on it. Based on the code which I given below, I would say when the file at UNIT=100 is opened, 4 new files needed to be opened as well. They are:
maximum_dist_001_064.dat
maximum_dist_065_128.dat
maximum_dist_129_192.dat
maximum_dist_193_256.dat
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Nov 23, 2010
Is it possible to generate keyboard event "Ctrl+c" from a shell script code.? I have written a shell script to compile my application and copy it to the server home directory, inorder to run my application I need to start the server (by running a shell script). But before that I need to stop the the currently running instance of my server. To do that I have to generate a keyboard event (Ctrl+c which I press it manually). I want to automate the entire process by writing a shell script I am able to run the server just by adding ./run.sh in my shell script. But before that to stop my server can I generate a keyboard by using a shell script event(ctrL+C) to stop server.?
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May 31, 2010
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
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Mar 5, 2011
Generating avi files for movies directly from gfortran programs. I make movies from my Fortran codes using seismic unix - SU. Need to modernize this method to make avi movies or something similar. I am quite adept at generating "C" binary files from Fortran. Have not been able to find the documented definition of AVI file format.
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Mar 3, 2010
I have a csv file like, having HDR segment and multiple LIN01 segment in each line:like
Here i want to split file in two, one having LIN01 segment which have LR at end, and one which have LF at end in LIN01 segment.
Is it possible to created awk or shell script for this?
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May 19, 2010
I have problems with linking object files.
This is what I get:
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Jul 20, 2010
I 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.
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Oct 8, 2010
at 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]....
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Feb 25, 2009
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.
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Mar 26, 2011
How to create a simple Makefile using C....
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Dec 8, 2009
I'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.
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Jan 6, 2010
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?
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Apr 5, 2010
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)
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Nov 25, 2010
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?
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Jun 25, 2011
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?
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Apr 10, 2011
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:
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Oct 4, 2010
I 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.
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Apr 26, 2010
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.
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Jun 19, 2010
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 .
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