There's tons of questions regarding this issue but none have helped... I've tried it all.
I have a
proj.c file I want to compile and it depends on Client_linked_list.h and POOL_check_linked_list.h.
Client_linked_list that depends on nothing but itself
POOL_check_linked_list that depends on Client_linked_list.h
This is my makefile code
CFLAGS =-ansi -Wall -pedantic
CC = gcc
LDFLAGS=-lm
.PHONY: all clean run
all: proj
proj: Client_linked_list.o POOL_check_linked_list.o proj.o
$(CC) $(CFLAGS) $(LDFLAGS) -o proj proj.o Client_linked_list.o POOL_check_linked_list.o
Client_linked_list.o: Client_linked_list.c Client_linked_list.h
$(CC) $(CFLAGS) -c Client_linked_list.c
POOL_check_linked_list.o: POOL_check_linked_list.c POOL_check_linked_list.h Client_linked_list.h
$(CC) $(CFLAGS) -c POOL_check_linked_list.c
proj.o: proj.c Client_linked_list.h POOL_check_linked_list.h
$(CC) $(CFLAGS) -o proj.o -c proj.c
clean:
#echo Cleaning...
rm -f proj Client_linked_list POOL_check_linked_list
This is the error message I'm getting:
gcc -ansi -Wall -pedantic -c Client_linked_list.c
Client_linked_list.c:10:32: fatal error: Client_linked_list.h: No such file or directory
compilation terminated. make: *** [makefile:20:Client_linked_list.o] Error 1
The files are all in the same directory!
You need to use the -I option in your CFLAGS, pointing towards your include folder.
The error seems to come from your compiler which doesn't know where your header file is.
Related
I have a basic Makefile setup for C OpenGL programming but when running there are 2 files passed to clang that shouldnt exist and i have no idea why. The problem happened after i added glad and glfw to the project.
code:
CC = clang
`CCFLAGS = -lGL -lglfw -std=c++20 -v -Wall -Wextra -Wepedantic -g -lgdi32
LDFLAGS = lib/glad/src/glad.o lib/glfw/src/libglfw3.a -lgdi32 -lm
SRC = $(wildcard src/*.c)
OBJ = $(SRC:.c=.o)
BIN = bin
all: libs build
libs:
cd lib/glad && $(CC) -o src/glad.o -Iinclude -c src/glad.c
cd lib/glfw && cmake . -G 'Unix Makefiles' && make
build: $(OBJ)
$(CC) -o $(BIN)/build $^ $(LDFLAGS)
%.o %.c:
$(CC) -o $# -c $< $(CCFLAGS)
run:
./bin/build.exe
ERROR:
clang: error: no such file or directory: 'all.o'
clang: error: no such file or directory: 'libs'
clang: error: no such file or directory: 'build'
When asking questions please include the command you typed, the command make printed, plus at least the first and last few lines of error messages (properly formatted as code blocks).
I'm assuming that the extra quote character is an error in your cut and paste; please take a moment to review your question after you post it (or even better, using the preview before you post it). You are writing this one time, but tens or hundreds of people will spend their time reading it. Please be considerate enough to make it easy for them.
Your problem is this:
%.o %.c:
$(CC) -o $# -c $< $(CCFLAGS)
You want to say "build a .o file from a .c file using this rule", but %.o %.c: says instead, "build both a .o and a .c file, from nothing, using this rule".
You need:
%.o: %.c
$(CC) -o $# -c $< $(CCFLAGS)
I am using Cygwin and makefile to complile multiple c files.
The make file is
CC=gcc
INC_DIR=../include
LIBS=-lregex
ODIR=obj
_OBJ=main.o BVPA.o BVPA-cube.o BVPA-cif.o BVPA-hk.o BVPA-path.o BVPA-math.o BVPA-cmd.o BVPA-gui.o BVPA-vesta.o MT19937AR.o
OBJ=$(patsubst %,$(ODIR)/%,$(_OBJ))
TARGET=../bin/BVPA1.exe
CFLAGS=-I$(INC_DIR) -Wall -g
all: $(TARGET)
rm -f $(ODIR)/*.o
$(TARGET): $(OBJ)
$(CC) $(CFLAGS) -o $# $^ $(LIBS)
$(ODIR)/%.o: %.c
$(CC) $(CFLAGS) -c -o $# $^
clean:
rm -f $(ODIR)/*.o`
The outcome is
/usr/lib/gcc/x86_64-pc-cygwin/7.3.0/../../../../x86_64-pc-cygwin/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/7.3.0/../../../libregex.dll when searching for -lregex
/usr/lib/gcc/x86_64-pc-cygwin/7.3.0/../../../../x86_64-pc-cygwin/bin/ld: cannot find -lregex
collect2: error: ld returned 1 exit status
make: *** [makefile:14: ../bin/BVPA1.exe] Error 1
I am not sure how to solve the problem. I have tried to download some libregex.dll and put them in the cygwin lib folder but they seem to be uncompatible.
I'm learning how to use C and Make, but Make is making me tear my hair out. When I run make with all targets I've created it fails, running gcc with no parameters, except one of them randomly works just fine. Here is what happens when I try to build with most of the targets:
$ make strvector.o
gcc
gcc: fatal error: no input files
compilation terminated.
make: *** [vector.o] Error 4
and when I run the one that works:
$ make word.o
gcc -Wall -g -ansi -pedantic -c -o word.o word.c
Here is my makefile:
CC = gcc
CFLAGS = -Wall -g -ansi -pedantic -c -o $# $^
LD = gcc
LDFLAGS =
fw: fw.o vector.o hashtable.o strvector.o
$(LD) $(LDFLAGS) -o fw vector.o hashtable.o strvector.o word.o
fw.o: fw.c vector.o hashtable.o strvector.o word.o
$(CC) $(CFALGS)
vector.o: vector.c word.o
$(CC) $(CFALGS)
hashtable.o: hashtable.c vector.o word.o
$(CC) $(CFLAGS)
word.o: word.c
$(CC) $(CFLAGS)
strvector.o: strvector.c
$(CC) $(CFALGS)
I cannot for the life of me figure out why word.o builds fine but not anything else. If anyone could help that would be much appreciated.
--Edit-- I made a typo. Writing CFALGS instead of CFLAGS. not sure how I missed that one. Thanks guys!
You left out the filenames in the compilation commands.
strvector.o: strvector.c
$(CC) -c $(CFLAGS) -o $# $<
$# gets replaced with the current target, $< is replaced with the current dependency.
I am trying to call java from c, and I have made the following MakeFile:
include ../../Makefile.defs
auto_gen=
NAME=libproto.so
CC=gcc
CFLAGS= -g -Wall -fPIC
LIBS= -L'$(LD_LIBRARY_PATH)' -ljvm -I"/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.91.x86_64/include/" -I"/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.91.x86_64/include/linux" -I"/usr/local/lib64/kamailio/"
include ../../Makefile.modules
SOURCE=jni_wrapper.c ProtoType.c
OBJECTS=$(SOURCE:.c=.o)
all: $(SOURCE) $(NAME)
%.o: %.c
$(CC) $(CFLAGS) -c $(LIBS) $<
clean:
rm -f $(EXEC); rm -f *~; rm -f .*.swp; rm -f .*.swo; rm -f *.o
java:
javac ProtoType.java
jar cf ProtoType.jar ProtoType.class
javap -s -p ProtoType > sigs.txt
cat sigs.txt
When I compile with make I get an error like this:
error: <jni.h>: No such file or directory
I looked through many stackoverflow pages with a similar problem but they all have same solution which I already had implemented. They said you need to link the library path to jni.h.
As you can see in my MakeFile this is being done:
LIBS= -L'$(LD_LIBRARY_PATH)' -ljvm -I"/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.91.x86_64/include/" -I"/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.91.x86_64/include/linux" -I"/usr/local/lib64/kamailio/"
I triple checked the directories and the permissions and everything is fine.
Any Suggestions?
You need to add the end of your LIBS definition to the CFLAGS
CFLAGS= -g -Wall -fPIC -I"/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.91.x86_64/include/" -I"/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.91.x86_64/include/linux" -I"/usr/local/lib64/kamailio/"
LIBS= -L'$(LD_LIBRARY_PATH)' -ljvm
The -I include directories are used by the compiler not the linker. It's the compiler that can't find your .h file.
You may also want to change the targets as follows
%.o: %.c
$(CC) $(CFLAGS) -c $<
$(NAME): $(OBJECTS)
$(CC) $(OBJECTS) -o $# $(LIBS)
This will build you .so file.
gcc 4.7.2
c89
GNU Make 3.82
I am trying compile this program I have using this Makefile. I have only 1 src file at the moment, but I will have more later to include.
I am trying to get the Makefile to create the bin directory if it doesn't exist and put the binary executable in there.
INC_PATH=-I/home/dev_tools/apr/include/apr-1
LIB_PATH=-L/home/dev_tools/apr/lib
LIBS=-lapr-1
RUNTIME_PATH=/home/dev_tools/apr/lib
CC=gcc
CFLAGS=-Wall -Wextra -g -m32 -D_DEBUG -D_THREAD_SAFE -D_REENTRANT -D_LARGEFILE64_SOURCE -O2 $(INC_PATH)
OBJECTS=timeout.o
EXECUTABLE=bin/to
all: build $(EXECUTABLE)
$(EXECUTABLE):
$(CC) -m32 -o $# -Wl,-rpath,$(RUNTIME_PATH), $(LIB_PATH) $(OBJECTS) $(LIBS)
build:
#mkdir -p bin
clean:
rm -rf *~ timeout *.o
I am getting this error:
make
gcc -m32 -o bin/to -Wl,-rpath,/home/dev_tools/apr/lib, -L/home/dev_tools/apr/lib timeout.o -lapr-1
gcc: error: timeout.o: No such file or directory
make: *** [bin/to] Error 1
When I remove the $(OBJECTS) I get the following:
gcc -m32 -o bin/to -Wl,-rpath,/home/dev_tools/apr/lib, -L/home/dev_tools/apr/lib -lapr-1
/usr/bin/ld: cannot find : No such file or directory
collect2: error: ld returned 1 exit status
make: *** [bin/to] Error 1
Not sure where I am going wrong with this.
You have not specified how to build the target timeout.o.
You need to add the following code:
timeout.o: timeout.c
$(CC) $(CFLAGS) -c -o $# $<
If you end up with more source file that you need compiled, you can use a pattern matching rule like this:
%.o: %.c
$(CC) $(CFLAGS) -c $< -o $#
Makefiles can be a bit tricky. Because you want to continue adding more objects to your OBJECT variable, I would actually add a prerequisite to EXECUTABLE to make sure all of your objects are compiled. From there, the automatic rule inference should take care of the rest.
Basically replace the line with:
$(EXECUTABLE): $(OBJECTS)
$(CC) -m32 -o $# -Wl,-rpath,$(RUNTIME_PATH), $(LIB_PATH) $(OBJECTS) $(LIBS)
Its showing error because make is not able to find timeout.o file in the current directory.
If you have timeout.c file then add the following to your makefile
OBJECTS: timeout.c
$(CC) -c timeout.c