如何使我的程序使用BSD打印其github版本号?

时间:2016-04-23 16:52:49

标签: c git gcc makefile openbsd

我希望能够在我的代码中使用git版本的变量。如果我使用make设置变量然后在.h文件中覆盖它,那么从'.h'文件打印的最终值将会出现。有没有办法覆盖makefile中的.h

 executing make
gcc -O2 -pipe   -pedantic -std=c99 -Wall -O3 -ledit -DVERSION=\"\" -c main.c -o main.o
In file included from main.c:9:0:
openshell.h:17:0: warning: "VERSION" redefined [enabled by default]
 #define VERSION "v0.1a"

我正在尝试从github设置变量VERSION,以便查看版本:

$ ./a.out --version
OpenShell version 0.1(a)
Version: v0.1a-2-gc6b1-dirty

我有这个makefile

CC = gcc
GIT_VERSION := $(shell git describe --abbrev=4 --dirty --always --tags)
CFLAGS := $(CFLAGS) -pedantic -std=c99 -Wall -O3 -ledit -g -DVERSION=\"$(GIT_VERSION)\"

shell: main.o
    $(CC) -o shell main.o errors.c util.c pipeline.c -ledit

main.o: main.c errors.c util.c

.PHONY: clean
clean:
    rm -f *.o

然后它适用于Linux Ubuntu,但它不适用于BSD,PC-BSD变量未显示:

dac:/usr/home/dac/openshell $ make
The Command is: make
27152: executing make
gcc -O2 -pipe   -pedantic -std=c99 -Wall -O3 -ledit -DVERSION=\"\" -c main.c -o main.o
main.c: In function 'trimstring':
main.c:116:9: warning: value computed is not used [-Wunused-value]
         *tmp++;
         ^
main.c:119:17: warning: comparison between pointer and integer [enabled by default]
     while (*tmp != NULL) {
                 ^
main.c: In function 'exec_program':
main.c:444:9: warning: implicit declaration of function 'snprintf' [-Wimplicit-function-declaration]
         snprintf(shell_prompt, sizeof(shell_prompt), "%s:%s $ ", getenv("USER"), getcwd(NULL, 1024));
         ^
main.c:444:9: warning: incompatible implicit declaration of built-in function 'snprintf' [enabled by default]
gcc -o shell main.o errors.c util.c pipeline.c -ledit
dac:/usr/home/dac/openshell $ ./shell --version
The Command is: ./shell --version
27181: executing ./shell
OpenShell version 0.1(a)
Version: 
dac:/usr/home/dac/openshell $ 

更新160426 07:49 CET

现在它适用于Ubuntu(但可能有危险删除.h文件中的旧版本号)`GIT:= $(shell head -n -1 openshell.h> temp.txt; mv temp.txt openshell。 h; git describe --abbrev = 4 --dirty --always --tags> VERSION; echo“#define VERSION \”$(GIT_VERSION)\“”>> openshell.h)

现在更新的Makefile:

CC = gcc
GIT_VERSION := $(shell git describe --abbrev=4 --dirty --always --tags)
CFLAGS := $(CFLAGS) -L/usr/local/include/ -L/usr/include -pedantic -std=c99 -Wall -O3 -g -DVERSION=\"$(GIT_VERSION)\" -ledit -lncurses

LDIRS = -L/usr/local/lib -L/usr/lib
LIBS = -ledit lncurses -lcurses

shell: main.o
    $(CC) -o shell main.o errors.c util.c pipeline.c -ledit -lncurses -lcurses

main.o: main.c errors.c util.c
USERNAME := $(shell whoami >> username.txt)
GIT:= $(shell head -n -1 openshell.h > temp.txt ; mv temp.txt openshell.h;git describe --abbrev=4 --dirty --always --tags > VERSION; echo "\#define VERSION \"$(GIT_VERSION)\"" >> openshell.h)

.PHONY: clean
clean:
    rm -f *.o

`

1 个答案:

答案 0 :(得分:2)

要避免使用warning: "VERSION" redefined,请使用#ifndef包装#define:

#ifndef VERSION
  #define VERSION "v0.1a"
#endif