├── compile.mk
├── config.mk
├── Makefile
└── src
    ├── main.c
    ├── Makefile
    ├── module1
    │   ├── module1_bar.c
    │   └── module1_foo.c
    └── module2
        ├── module2_bar.c
        └── module2_foo.c

#Makefile верхнего уровня
include config.mk

MAKEFLAGS+=--no-print-directory

all:
        @printf "\x1b[32mStart project compilation\x1b[0m\n"
        @$(foreach target,$(TARGETS), \
                printf "\x1b[32m%s\x1b[0m compilation\n" "$(target)" && \
                $(MAKE) -C $(target) clean && \
                $(MAKE) -C $(target); \
        )

clean:
        $(foreach target,$(TARGETS),$(MAKE) -C $(target) clean;)

#config.mk
export CC=clang

export PROJECT_DIR=$(shell realpath .)

export SRC_DIR=$(PROJECT_DIR)/src
export BUILD_DIR=$(PROJECT_DIR)/build
export INCLUDE_DIR=$(PROJECT_DIR)/include

export LIBS_DIR=$(shell realpath libs)
export LIBS_INCLUDE_DIRS_PATH=$(shell find $(LIBS_DIR) -type d -iname "include")

export TARGETS=$(shell find $(shell realpath .) -type f -iname "Makefile" | xargs dirname | tail -n +2)

export CFLAGS=-I$(INCLUDE_DIR) $(addprefix -I,$(LIBS_INCLUDE_DIRS_PATH))

# $(info CC $(CC))
# $(info SRC_DIR $(SRC_DIR))
# $(info BUILD_DIR $(BUILD_DIR))
# $(info INCLUDE_DIR $(INCLUDE_DIR))
# $(info CFLAGS $(CFLAGS))

#compile.mk
SRC_BASENAMES=$(notdir $(SRCS))
SRC_FULLPATH=$(realpath $(SRCS))

OBJS=$(addprefix $(BUILD_DIR)/,$(addsuffix .o,$(SRC_BASENAMES)))

# $(info SRC_FULLPATH: $(SRC_FULLPATH))
# $(info OBJS: $(OBJS))

define COMPILE_SOURCE_TO_OBJECT
$(1): $(2)
        $(info $(2) > $(1))
        $(CC) $(CFLAGS) -c $(2) -o $(1)
        @echo -e "\x1b[33m$(2)\x1b[0m compiled to \x1b[33m$(1)\x1b[0m"
endef


$(foreach i, $(shell seq 1 $(words $(SRCS))), \
        $(eval $(call COMPILE_SOURCE_TO_OBJECT, \
        $(strip $(word $(i),$(OBJS))), \
        $(strip $(word $(i),$(SRC_FULLPATH))) \
  )); \
)

$(BUILD_DIR)/$(TARGET): $(OBJS)
        printf "\x1b[32m%s\x1b[0m compiled to \x1b[32m%s\x1b[0m" "$^" "$@"


clean:
        rm -rf $(OBJS)

#Makefile в src
TARGET = main
TYPE = application

LIBS = lib1 lib2

SRCS = main.c \
                         module1/module1_foo.c \
                         module1/module1_bar.c \
                         module2/module2_foo.c \
                         module2/module2_bar.c

include ../compile.mk

all: $(BUILD_DIR)/$(TARGET)

Start project compilation
/home/ren4/Code/make-build-system/src compilation
 /home/ren4/Code/make-build-system/src/main.c  >  /home/ren4/Code/make-build-system/build/main.c.o
 /home/ren4/Code/make-build-system/src/module1/module1_foo.c  >  /home/ren4/Code/make-build-system/build/module1_foo.c.o
 /home/ren4/Code/make-build-system/src/module1/module1_bar.c  >  /home/ren4/Code/make-build-system/build/module1_bar.c.o
 /home/ren4/Code/make-build-system/src/module2/module2_foo.c  >  /home/ren4/Code/make-build-system/build/module2_foo.c.o
 /home/ren4/Code/make-build-system/src/module2/module2_bar.c  >  /home/ren4/Code/make-build-system/build/module2_bar.c.o
rm -rf /home/ren4/Code/make-build-system/build/main.c.o /home/ren4/Code/make-build-system/build/module1_foo.c.o /home/ren4/Code/make-build-system/build/module1_bar.c.o /home/ren4/Code/make-build-system/build/module2_foo.c.o /home/ren4/Code/make-build-system/build/module2_bar.c.o
 /home/ren4/Code/make-build-system/src/main.c  >  /home/ren4/Code/make-build-system/build/main.c.o
 /home/ren4/Code/make-build-system/src/module1/module1_foo.c  >  /home/ren4/Code/make-build-system/build/module1_foo.c.o
 /home/ren4/Code/make-build-system/src/module1/module1_bar.c  >  /home/ren4/Code/make-build-system/build/module1_bar.c.o
 /home/ren4/Code/make-build-system/src/module2/module2_foo.c  >  /home/ren4/Code/make-build-system/build/module2_foo.c.o
 /home/ren4/Code/make-build-system/src/module2/module2_bar.c  >  /home/ren4/Code/make-build-system/build/module2_bar.c.o
clang -I/home/ren4/Code/make-build-system/include -I/home/ren4/Code/make-build-system/libs/lib1/include -I/home/ren4/Code/make-build-system/libs/lib2/include -c  /home/ren4/Code/make-build-system/src/main.c  -o  /home/ren4/Code/make-build-system/build/main.c.o
 /home/ren4/Code/make-build-system/src/main.c  compiled to  /home/ren4/Code/make-build-system/build/main.c.

> install.packages("Rcmdr", repos="https://cloud.r-project.org", verbose=TRUE)
Available system packages as root...
Install system packages as root...

> Commander()
Error: invalid multibyte character in parser (<input>:1:1)
> library(Rcmdr) 
Error in library(Rcmdr) : there is no package called 'Rcmdr'

XKBOPTIONS="ctrl:nocaps"

sudo dpkg-reconfigure keyboard-configuration

ren4@altlinux ~ $ sudo apt-get install wireguard-tools-wg-quick
Чтение списков пакетов... Завершено
Построение дерева зависимостей... Завершено
Последняя версия wireguard-tools-wg-quick уже установлена.
0 будет обновлено, 0 новых установлено, 0 пакетов будет удалено и 32 не будет обновлено.

ren4@altlinux ~ $ sudo apt-get install wireguard-tools                        
Чтение списков пакетов... Завершено
Построение дерева зависимостей... Завершено
Последняя версия wireguard-tools уже установлена.
0 будет обновлено, 0 новых установлено, 0 пакетов будет удалено и 32 не будет обновлено.

ren4@altlinux ~ $ sudo apt-get install kernel-source-wireguard 
Чтение списков пакетов... Завершено
Построение дерева зависимостей... Завершено
Последняя версия kernel-source-wireguard уже установлена.
0 будет обновлено, 0 новых установлено, 0 пакетов будет удалено и 32 не будет обновлено.

ren4@altlinux ~ $ wg show 
zsh: command not found: wg

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <wait.h>

void error(char *s);
char *data[2] = {"hello. How are you?\n", "lacrimosa\n"};

int main(void) {
  int in[2], out[2], n, pid;
  char buf[255];

  if (pipe(in) < 0) error("pipe in");
  if (pipe(out) < 0) error("pipe out");

  if ((pid = fork()) == 0) {
    /* This is the child process */
    /* Close stdin, stdout, stderr */
    close(0);
    close(1);
    close(2);
    /* make our pipes, our new stdin,stdout and stderr */
    dup2(in[0], 0);
    dup2(out[1], 1);
    dup2(out[1], 2);

    close(in[1]);
    close(out[0]);
    close(in[0]);
    close(out[1]);

    execl("/bin/sh", "sh", "-c", argv[1], (char *)NULL);
    error("Could not exec hexdump");
  }

  /* This is the parent process */
  
  close(in[0]);
  close(out[1]);
  for (int i = 0; i < 2; i++) {
    printf("<- %s", data[i]);
    /* Write some data to the childs input */
    write(in[1], data[i], strlen(data[i]));

    /* Read back any output */
    n = read(out[0], buf, 250);
    buf[n] = 0;
    printf("-> %s", buf);
    // Анализируем вывод дочернего процесса.
  }
  wait(NULL);
  exit(0);
}

void error(char *s) {
  perror(s);
  exit(1);
}

#include <stdio.h>

int main(inc argc, char *argv[]) {
  char buf[1024];
  for (int i = 0; i < 5; i++) {
    scanf("%s", buf);
    if (strstr(buf, "hello")) {
      printf("Hello!\n");
    } else {
      printf("Bye!\n");
    }
  }
  return 0; 
}

ren4@linux:~/some_dir$ cd ../some dir
#                                ^здесь символ _ 

00:1f.3 Audio device [0403]: Intel Corporation Comet Lake PCH-LP cAVS [8086:02c8]
	Subsystem: QUANTA Computer Inc Comet Lake PCH-LP cAVS [152d:125d]
	Kernel driver in use: sof-audio-pci-intel-cnl
	Kernel modules: snd_hda_intel, snd_soc_skl, snd_sof_pci_intel_cnl

aplay: device_list:277: no soundcards found...

ALSA lib confmisc.c:855:(parse_card) cannot find card '0'
ALSA lib conf.c:5204:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory
ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings
ALSA lib conf.c:5204:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1342:(snd_func_refer) error evaluating name
ALSA lib conf.c:5204:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5727:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib control.c:1570:(snd_ctl_open_noupdate) Invalid CTL default
cannot open mixer: No such file or directory

sudo sh -c 'echo "options snd-intel-dspcfg dsp_driver=1" > /etc/modprobe.d/alsa.conf'

2: wlp0s20f3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisk noqueue state DOWN mode DEFAULT group default qlen 1000

ошибка: Не удалось установить org.freedesktop.Platform: Во время получения runtime/org.freedesktop.Platform/x86_64/22.08 из удалённого репозитория flathub: Writing content object: Требуется больше входных данных

rm -rf ~/.Wine
sudo dnf remove wine