无需手写任何 make 文件,智能扫描代码进行自动编译

2017-01-09 18:06:57 +08:00
 waruqi

最近给xmake增加了一个新特性,对于一份工程源码,可以不用编写 makefile ,也不用编写各种 make 相关的工程描述文件(例如: xmake.lua , makefile.am, cmakelist.txt 等)

xmake 就可以直接编译他们,这是如何做到的呢,简单来说下实现原理:

  1. 首先扫描当前目录下, xmake 所以支持的所有源代码文件
  2. 分析代码,检测哪些代码拥有 main 入口函数
  3. 所有没有 main 入口的代码编译成静态库
  4. 带有 main 入口的代码,编译成可执行程序,同时链接其他静态库程序

这种代码扫描和智能编译,非常简单,目前 xmake 还不支持多级目录扫描,只对单级目录的代码进行扫描编译。。

开源代码的移植和编译

虽然这种方式,并不是非常智能,限制也不少,但是对于想临时写些代码进行编译运行,或者临时想交叉编译一些简单的开源库代码

这种方式已经足够使用了,下面看下一个实际的例子:

我下载了一份 zlib-1.2.10 的源码,想要编译它,只需要进入 zlib 的源码目录执行:

$ cd zlib-1.2.10
$ xmake

就行了,输出结果如下:

xmake.lua not found, scanning files ..
target(zlib-1.2): static
    [+]: ./adler32.c
    [+]: ./compress.c
    [+]: ./crc32.c
    [+]: ./deflate.c
    [+]: ./gzclose.c
    [+]: ./gzlib.c
    [+]: ./gzread.c
    [+]: ./gzwrite.c
    [+]: ./infback.c
    [+]: ./inffast.c
    [+]: ./inflate.c
    [+]: ./inftrees.c
    [+]: ./trees.c
    [+]: ./uncompr.c
    [+]: ./zutil.c
xmake.lua generated, scan ok!👌
checking for the architecture ... x86_64
checking for the Xcode SDK version for macosx ... 10.12
checking for the target minimal version ... 10.12
checking for the c compiler (cc) ... xcrun -sdk macosx clang
checking for the c++ compiler (cxx) ... xcrun -sdk macosx clang
checking for the objc compiler (mm) ... xcrun -sdk macosx clang
checking for the objc++ compiler (mxx) ... xcrun -sdk macosx clang++
checking for the swift compiler (sc) ... xcrun -sdk macosx swiftc
checking for the assember (as) ... xcrun -sdk macosx clang
checking for the linker (ld) ... xcrun -sdk macosx clang++
checking for the static library archiver (ar) ... xcrun -sdk macosx ar
checking for the static library extractor (ex) ... xcrun -sdk macosx ar
checking for the shared library linker (sh) ... xcrun -sdk macosx clang++
checking for the debugger (dd) ... xcrun -sdk macosx lldb
checking for the golang compiler (go) ... go
configure
{
    ex = "xcrun -sdk macosx ar"
,   sh = "xcrun -sdk macosx clang++"
,   host = "macosx"
,   ar = "xcrun -sdk macosx ar"
,   buildir = "build"
,   as = "xcrun -sdk macosx clang"
,   plat = "macosx"
,   xcode_dir = "/Applications/Xcode.app"
,   arch = "x86_64"
,   mxx = "xcrun -sdk macosx clang++"
,   go = "go"
,   target_minver = "10.12"
,   ccache = "ccache"
,   mode = "release"
,   clean = true
,   cxx = "xcrun -sdk macosx clang"
,   cc = "xcrun -sdk macosx clang"
,   dd = "xcrun -sdk macosx lldb"
,   kind = "static"
,   ld = "xcrun -sdk macosx clang++"
,   xcode_sdkver = "10.12"
,   sc = "xcrun -sdk macosx swiftc"
,   mm = "xcrun -sdk macosx clang"
}
configure ok!
clean ok!
[00%]: ccache compiling.release ./adler32.c
[06%]: ccache compiling.release ./compress.c
[13%]: ccache compiling.release ./crc32.c
[20%]: ccache compiling.release ./deflate.c
[26%]: ccache compiling.release ./gzclose.c
[33%]: ccache compiling.release ./gzlib.c
[40%]: ccache compiling.release ./gzread.c
[46%]: ccache compiling.release ./gzwrite.c
[53%]: ccache compiling.release ./infback.c
[60%]: ccache compiling.release ./inffast.c
[66%]: ccache compiling.release ./inflate.c
[73%]: ccache compiling.release ./inftrees.c
[80%]: ccache compiling.release ./trees.c
[86%]: ccache compiling.release ./uncompr.c
[93%]: ccache compiling.release ./zutil.c
[100%]: archiving.release libzlib-1.2.a
build ok!👌

通过输出结果,可以看到, xmake 会去检测扫描当前目录下的所有.c 代码,发现没有 main 入口,应该是静态库程序,因此执行 xmake 后,就直接编译成静态库 libzlib-1.2.a 了

连 xmake.lua 都没有编写,其实 xmake 在扫描完成后,会去自动在当前目录下生成一份 xmake.lua ,下次编译就不需要重新扫描检测了。

自动生成的 xmake.lua 内容如下:

-- define target
target("zlib-1.2")

    -- set kind
    set_kind("static")

    -- add files
    add_files("./adler32.c")
    add_files("./compress.c")
    add_files("./crc32.c")
    add_files("./deflate.c")
    add_files("./gzclose.c")
    add_files("./gzlib.c")
    add_files("./gzread.c")
    add_files("./gzwrite.c")
    add_files("./infback.c")
    add_files("./inffast.c")
    add_files("./inflate.c")
    add_files("./inftrees.c")
    add_files("./trees.c")
    add_files("./uncompr.c")
    add_files("./zutil.c")

也许你会说,像这种开源库,直接configure; make不就好了吗,他们自己也有提供 makefile 来直接编译的,的确是这样,我这里只是举个例子而已。。

当然,很多开源库在交叉编译的时候,通过自带的configure,处理起来还是很繁琐的,用 xmake 进行交叉编译会更方便些。。

即时地代码编写和编译运行

xmake 的这个扫描代码编译特性,主要的目的:还是为了让我们在临时想写些测试代码的时候,不用考虑太多东西,直接上手敲代码,然后快速执行xmake run 来调试验证结果。。

例如:

我想写了个简单的 main.c 的测试程序,打印hello world!,如果要写 makefile 或者直接通过 gcc 命令来,就很繁琐了,你需要:

gcc ./main.c -o demo
./demo

最快速的方式,也需要执行两行命令,而如果用 xmake ,只需要执行:

xmake run

就行了,它会自动检测到代码后,自动生成对应的 xmake.lua ,自动编译,自动运行,然后输出:

hello world!

如果你有十几个代码文件,用手敲 gcc 的方式,或者写 makefile 的方式,这个差距就更明显了,用 xmake 还是只需要一行命令:

xmake run

多语言支持

这种代码检测和即时编译,是支持多语言的,不仅支持 c/c++,还支持 objc/swift ,后期还会支持 golang (正在开发中)

例如我下载了一份 fmdb 的 ios 开源框架代码:

.
├── FMDB.h
├── FMDatabase.h
├── FMDatabase.m
├── FMDatabaseAdditions.h
├── FMDatabaseAdditions.m
├── FMDatabasePool.h
├── FMDatabasePool.m
├── FMDatabaseQueue.h
├── FMDatabaseQueue.m
├── FMResultSet.h
└── FMResultSet.m

想要把它编译成 ios 的静态库,但是又不想写 xmake.lua ,或者 makefile ,那么只需要使用 xmake 的这个新特性,直接执行:

$ xmake f -p iphoneos; xmake

就行了,输出结果如下:

xmake.lua not found, scanning files ..
target(FMDB): static
    [+]: ./FMDatabase.m
    [+]: ./FMDatabaseAdditions.m
    [+]: ./FMDatabasePool.m
    [+]: ./FMDatabaseQueue.m
    [+]: ./FMResultSet.m
xmake.lua generated, scan ok!👌
checking for the architecture ... armv7
checking for the Xcode SDK version for iphoneos ... 10.1
checking for the target minimal version ... 10.1
checking for the c compiler (cc) ... xcrun -sdk iphoneos clang
checking for the c++ compiler (cxx) ... xcrun -sdk iphoneos clang
checking for the objc compiler (mm) ... xcrun -sdk iphoneos clang
checking for the objc++ compiler (mxx) ... xcrun -sdk iphoneos clang++
checking for the assember (as) ... gas-preprocessor.pl xcrun -sdk iphoneos clang
checking for the linker (ld) ... xcrun -sdk iphoneos clang++
checking for the static library archiver (ar) ... xcrun -sdk iphoneos ar
checking for the static library extractor (ex) ... xcrun -sdk iphoneos ar
checking for the shared library linker (sh) ... xcrun -sdk iphoneos clang++
checking for the swift compiler (sc) ... xcrun -sdk iphoneos swiftc
configure
{
    ex = "xcrun -sdk iphoneos ar"
,   ccache = "ccache"
,   host = "macosx"
,   ar = "xcrun -sdk iphoneos ar"
,   buildir = "build"
,   as = "/usr/local/share/xmake/tools/utils/gas-preprocessor.pl xcrun -sdk iphoneos clang"
,   arch = "armv7"
,   mxx = "xcrun -sdk iphoneos clang++"
,   cxx = "xcrun -sdk iphoneos clang"
,   target_minver = "10.1"
,   xcode_dir = "/Applications/Xcode.app"
,   clean = true
,   sh = "xcrun -sdk iphoneos clang++"
,   cc = "xcrun -sdk iphoneos clang"
,   ld = "xcrun -sdk iphoneos clang++"
,   mode = "release"
,   kind = "static"
,   plat = "iphoneos"
,   xcode_sdkver = "10.1"
,   sc = "xcrun -sdk iphoneos swiftc"
,   mm = "xcrun -sdk iphoneos clang"
}
configure ok!
clean ok!
[00%]: ccache compiling.release ./FMDatabase.m
[20%]: ccache compiling.release ./FMDatabaseAdditions.m
[40%]: ccache compiling.release ./FMDatabasePool.m
[60%]: ccache compiling.release ./FMDatabaseQueue.m
[80%]: ccache compiling.release ./FMResultSet.m
[100%]: archiving.release libFMDB.a
build ok!👌

同时编译多个可执行文件

输出结果的开头部分,就是对代码的分析结果,虽然目前只支持单级目录结构的代码扫描,但是还是可以同时支持检测和编译多个可执行文件的

我们以 libjpeg 的开源库为例:

我们进入 jpeg-6b 目录后,执行:

$ xmake

输出如下:

xmake.lua not found, scanning files ..
target(jpeg-6b): static
    [+]: ./cdjpeg.c
    [+]: ./example.c
    [+]: ./jcapimin.c
    [+]: ./jcapistd.c
    [+]: ./jccoefct.c
    [+]: ./jccolor.c
    [+]: ./jcdctmgr.c
    [+]: ./jchuff.c
    [+]: ./jcinit.c
    [+]: ./jcmainct.c
    [+]: ./jcmarker.c
    [+]: ./jcmaster.c
    [+]: ./jcomapi.c
    [+]: ./jcparam.c
    [+]: ./jcphuff.c
    [+]: ./jcprepct.c
    [+]: ./jcsample.c
    [+]: ./jctrans.c
    [+]: ./jdapimin.c
    [+]: ./jdapistd.c
    [+]: ./jdatadst.c
    [+]: ./jdatasrc.c
    [+]: ./jdcoefct.c
    [+]: ./jdcolor.c
    [+]: ./jddctmgr.c
    [+]: ./jdhuff.c
    [+]: ./jdinput.c
    [+]: ./jdmainct.c
    [+]: ./jdmarker.c
    [+]: ./jdmaster.c
    [+]: ./jdmerge.c
    [+]: ./jdphuff.c
    [+]: ./jdpostct.c
    [+]: ./jdsample.c
    [+]: ./jdtrans.c
    [+]: ./jerror.c
    [+]: ./jfdctflt.c
    [+]: ./jfdctfst.c
    [+]: ./jfdctint.c
    [+]: ./jidctflt.c
    [+]: ./jidctfst.c
    [+]: ./jidctint.c
    [+]: ./jidctred.c
    [+]: ./jmemansi.c
    [+]: ./jmemmgr.c
    [+]: ./jmemname.c
    [+]: ./jmemnobs.c
    [+]: ./jquant1.c
    [+]: ./jquant2.c
    [+]: ./jutils.c
    [+]: ./rdbmp.c
    [+]: ./rdcolmap.c
    [+]: ./rdgif.c
    [+]: ./rdppm.c
    [+]: ./rdrle.c
    [+]: ./rdswitch.c
    [+]: ./rdtarga.c
    [+]: ./transupp.c
    [+]: ./wrbmp.c
    [+]: ./wrgif.c
    [+]: ./wrppm.c
    [+]: ./wrrle.c
    [+]: ./wrtarga.c
target(ansi2knr): binary
    [+]: ./ansi2knr.c
target(cjpeg): binary
    [+]: ./cjpeg.c
target(ckconfig): binary
    [+]: ./ckconfig.c
target(djpeg): binary
    [+]: ./djpeg.c
target(jpegtran): binary
    [+]: ./jpegtran.c
target(rdjpgcom): binary
    [+]: ./rdjpgcom.c
target(wrjpgcom): binary
    [+]: ./wrjpgcom.c
xmake.lua generated, scan ok!👌
checking for the architecture ... x86_64
checking for the Xcode SDK version for macosx ... 10.12
checking for the target minimal version ... 10.12
checking for the c compiler (cc) ... xcrun -sdk macosx clang
checking for the c++ compiler (cxx) ... xcrun -sdk macosx clang
checking for the objc compiler (mm) ... xcrun -sdk macosx clang
checking for the objc++ compiler (mxx) ... xcrun -sdk macosx clang++
checking for the swift compiler (sc) ... xcrun -sdk macosx swiftc
checking for the assember (as) ... xcrun -sdk macosx clang
checking for the linker (ld) ... xcrun -sdk macosx clang++
checking for the static library archiver (ar) ... xcrun -sdk macosx ar
checking for the static library extractor (ex) ... xcrun -sdk macosx ar
checking for the shared library linker (sh) ... xcrun -sdk macosx clang++
checking for the debugger (dd) ... xcrun -sdk macosx lldb
checking for the golang compiler (go) ... go
configure
{
    ex = "xcrun -sdk macosx ar"
,   sh = "xcrun -sdk macosx clang++"
,   host = "macosx"
,   ar = "xcrun -sdk macosx ar"
,   buildir = "build"
,   as = "xcrun -sdk macosx clang"
,   plat = "macosx"
,   xcode_dir = "/Applications/Xcode.app"
,   arch = "x86_64"
,   mxx = "xcrun -sdk macosx clang++"
,   go = "go"
,   target_minver = "10.12"
,   ccache = "ccache"
,   mode = "release"
,   clean = true
,   cxx = "xcrun -sdk macosx clang"
,   cc = "xcrun -sdk macosx clang"
,   dd = "xcrun -sdk macosx lldb"
,   kind = "static"
,   ld = "xcrun -sdk macosx clang++"
,   xcode_sdkver = "10.12"
,   sc = "xcrun -sdk macosx swiftc"
,   mm = "xcrun -sdk macosx clang"
}
configure ok!
clean ok!
[00%]: ccache compiling.release ./cdjpeg.c
[00%]: ccache compiling.release ./example.c
[00%]: ccache compiling.release ./jcapimin.c
[00%]: ccache compiling.release ./jcapistd.c
[00%]: ccache compiling.release ./jccoefct.c
[00%]: ccache compiling.release ./jccolor.c
[01%]: ccache compiling.release ./jcdctmgr.c
[01%]: ccache compiling.release ./jchuff.c
[01%]: ccache compiling.release ./jcinit.c
[01%]: ccache compiling.release ./jcmainct.c
[01%]: ccache compiling.release ./jcmarker.c
[02%]: ccache compiling.release ./jcmaster.c
[02%]: ccache compiling.release ./jcomapi.c
[02%]: ccache compiling.release ./jcparam.c
[02%]: ccache compiling.release ./jcphuff.c
[02%]: ccache compiling.release ./jcprepct.c
[03%]: ccache compiling.release ./jcsample.c
[03%]: ccache compiling.release ./jctrans.c
[03%]: ccache compiling.release ./jdapimin.c
[03%]: ccache compiling.release ./jdapistd.c
[03%]: ccache compiling.release ./jdatadst.c
[04%]: ccache compiling.release ./jdatasrc.c
[04%]: ccache compiling.release ./jdcoefct.c
[04%]: ccache compiling.release ./jdcolor.c
[04%]: ccache compiling.release ./jddctmgr.c
[04%]: ccache compiling.release ./jdhuff.c
[05%]: ccache compiling.release ./jdinput.c
[05%]: ccache compiling.release ./jdmainct.c
[05%]: ccache compiling.release ./jdmarker.c
[05%]: ccache compiling.release ./jdmaster.c
[05%]: ccache compiling.release ./jdmerge.c
[06%]: ccache compiling.release ./jdphuff.c
[06%]: ccache compiling.release ./jdpostct.c
[06%]: ccache compiling.release ./jdsample.c
[06%]: ccache compiling.release ./jdtrans.c
[06%]: ccache compiling.release ./jerror.c
[07%]: ccache compiling.release ./jfdctflt.c
[07%]: ccache compiling.release ./jfdctfst.c
[07%]: ccache compiling.release ./jfdctint.c
[07%]: ccache compiling.release ./jidctflt.c
[07%]: ccache compiling.release ./jidctfst.c
[08%]: ccache compiling.release ./jidctint.c
[08%]: ccache compiling.release ./jidctred.c
[08%]: ccache compiling.release ./jmemansi.c
[08%]: ccache compiling.release ./jmemmgr.c
[08%]: ccache compiling.release ./jmemname.c
[09%]: ccache compiling.release ./jmemnobs.c
[09%]: ccache compiling.release ./jquant1.c
[09%]: ccache compiling.release ./jquant2.c
[09%]: ccache compiling.release ./jutils.c
[09%]: ccache compiling.release ./rdbmp.c
[10%]: ccache compiling.release ./rdcolmap.c
[10%]: ccache compiling.release ./rdgif.c
[10%]: ccache compiling.release ./rdppm.c
[10%]: ccache compiling.release ./rdrle.c
[10%]: ccache compiling.release ./rdswitch.c
[11%]: ccache compiling.release ./rdtarga.c
[11%]: ccache compiling.release ./transupp.c
[11%]: ccache compiling.release ./wrbmp.c
[11%]: ccache compiling.release ./wrgif.c
[11%]: ccache compiling.release ./wrppm.c
[12%]: ccache compiling.release ./wrrle.c
[12%]: ccache compiling.release ./wrtarga.c
[12%]: archiving.release libjpeg-6b.a
[12%]: ccache compiling.release ./wrjpgcom.c
[25%]: linking.release wrjpgcom
[25%]: ccache compiling.release ./ansi2knr.c
[37%]: linking.release ansi2knr
[37%]: ccache compiling.release ./jpegtran.c
[50%]: linking.release jpegtran
[50%]: ccache compiling.release ./djpeg.c
[62%]: linking.release djpeg
[62%]: ccache compiling.release ./ckconfig.c
[75%]: linking.release ckconfig
[75%]: ccache compiling.release ./rdjpgcom.c
[87%]: linking.release rdjpgcom
[87%]: ccache compiling.release ./cjpeg.c
[100%]: linking.release cjpeg
build ok!👌

可以看到,处理静态库, xmake 还分析出了很多可执行的测试程序,剩下的代码统一编译成一个 libjpeg.a 的静态库,供哪些测试程序链接使用。。

target(ansi2knr): binary
    [+]: ./ansi2knr.c
target(cjpeg): binary
    [+]: ./cjpeg.c
target(ckconfig): binary
    [+]: ./ckconfig.c
target(djpeg): binary
    [+]: ./djpeg.c
target(jpegtran): binary
    [+]: ./jpegtran.c
target(rdjpgcom): binary
    [+]: ./rdjpgcom.c
target(wrjpgcom): binary
    [+]: ./wrjpgcom.c

遇到的一些问题和限制

当前 xmake 的这种自动分析检测还不是非常智能,对于:

  1. 需要特殊的编译选项
  2. 需要依赖其他目录的头文件搜索
  3. 需要分条件编译不同源文件
  4. 同目录需要生成多个静态库
  5. 需要多级目录支持的源码库

以上这些情况, xmake 暂时还没发自动化的智能处理,其中限制 1 , 2 还是可以解决的,通过半手动的方式,例如:

$ xmake f --cxflags="" --ldflags="" --includedirs="" --linkdirs=""; xmake

在自动检测编译的时候,手动配置这个源码工程需要的特殊编译选项,就可以直接通过编译了

而限制 3 ,暂时只能通过删源代码来解决了,就像刚才编译 jpeg 的代码,其实它的目录下面同时存在了:

jmemdos.c
jmemmac.c
jmemansi.c

其中两个是没法编译过的,需要删掉后才行。。


个人主页:TBOOX 开源工程 原文出处:http://tboox.org/cn/2017/01/07/build-without-makefile/

2901 次点击
所在节点    程序员
17 条回复
skydiver
2017-01-09 18:19:07 +08:00
> 最快速的方式,也需要执行两行命令

并不需要。你写一个 main.c 直接输入 make main 就出来可执行文件了
waruqi
2017-01-09 18:40:46 +08:00
@skydiver 这样确实也可以。赞一个。
waruqi
2017-01-09 18:43:37 +08:00
@skydiver 但是我说的是加上运行:

gcc ./main.c -o demo
./demo

改成:

make main
./main

还是需要两条命令,用; 合并后为: make main; ./main 这是最简的了。。

如果用 xmake ,只需要执行:

xmake run

或者其缩写: xmake r 就行了
firefox12
2017-01-09 19:29:03 +08:00
赞,我也想做一个这个。关键是选择哪些文件被用到了。选最小集合。这个比较麻烦
waruqi
2017-01-09 19:40:29 +08:00
@firefox12 这个确实很难完美处理 所以我现在只处理单级目录。仅用于一些小模块的快速编译。。 里面的源代码都作为可编译对象 。。里面通过检测 main 入口 来支持多 target 。。多级目录就复杂了 复杂工程 我暂时还是通过写 xmake.lua 文件来维护
codehz
2017-01-09 19:46:30 +08:00
要是能识别常见构建系统的配置文件并转换就更好了。。。这样,所有软件都可以统一了
waruqi
2017-01-09 19:48:17 +08:00
@codehz 这个我以后也会考虑做进去 不过最近还是重点
thomaspaine
2017-01-10 11:01:10 +08:00
>> 用 xmake 进行交叉编译会更方便些
怎么个方便法?有参数可以指定不同版本的编译环境么?
waruqi
2017-01-10 11:56:28 +08:00
@thomaspaine 可以参考下这篇文档: http://tboox.org/cn/2016/07/22/how-to-compile-on-cross-toolchains/

对于交叉 toolchains ,会自动检测工具链结构,通常情况下,只需要只需要指定整个 toolchains 的 rootdir :

xmake f -p linux --sdk=/home/toolchains_sdkdir

就行了, xmake 会去自动探测 toolchains 的结构,找到编译器,以及自动检测 arm-linux- 等前缀。。然后直接编译。。

只有很少情况下,才需要额外参数设置。。大部分情况下,所有都是自动检测的。。
zhidian
2017-01-10 14:05:24 +08:00
如果只是为了偷懒,用 1 楼那种就很好了。如果想稍微工程化一点,用 qt 的 qmake 也是极好的。
基本步骤是, 1 )写好你的源码; 2 )用 qmake 分析你的源码,生成 .pro 文件; 3 )生成 Makefile 文件; 4 ) make 。而且还支持多层目录啊……


```
# 来看看 qmake 有多方便
$ pwd
/tmp/tmp

# 随手写了一个 main 文件,一个 header 文件:
$ ls
main.cpp header.h
$ cat main.cpp
#include <iostream>
#include "header.h"

int main() {
echo();
}
$ cat header.h
int echo() {
std::cout << "Echo is here\n";
}

# 先用 qmake 生成 qt 的 pro 工程文件
$ qmake -project
# 再用 qmake 生成 Makefile 工程文件
$ qmake

# 文件夹下:
$ ls
header.h main.cpp Makefile tmn p.pro

# 编译
➜ tmp make
g++ -c -pipe -O2 -std=gnu++11 -Wall -W -D_REENTRANT -fPIC -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -I. -I. -I/opt/Qt5.7.1/5.7/gcc_64/include -I/opt/Qt5.7.1/5.7/gcc_64/include/QtGui -I/opt/Qt5.7.1/5.7/gcc_64/include/QtCore -I. -I/opt/Qt5.7.1/5.7/gcc_64/mkspecs/linux-g++ -o main.o main.cpp
In file included from main.cpp:2:0:
header.h: In function ‘ int echo()’:
header.h:3:1: warning: no return statement in function returning non-void [-Wreturn-type]
}
^
g++ -Wl,-O1 -Wl,-rpath,/opt/Qt5.7.1/5.7/gcc_64/lib -o tmp main.o -L/opt/Qt5.7.1/5.7/gcc_64/lib -lQt5Gui -L/usr/lib64 -lQt5Core -lGL -lpthread

# 运行
➜ tmp ./tmp
Echo is here
```
waruqi
2017-01-10 14:42:42 +08:00
@zhidian xmake 这个特性既可以给偷懒的人用,并且它会自动生成 xmake.lua 。。

你也可以进一步对其工程化处理, xmake.lua 完全支持复杂工程维护的,也支持多级目录。。

并且完全不依赖 make ,不需要生成 makefile ,当然也提供了插件,来生成: makefile , vsproj 等第三方工程文件。。
waruqi
2017-01-10 14:46:15 +08:00
而且 xmake 提供了各种工程默认,不需要手动创建 main.c ,只需要执行:

xmake create -P ./test

就可以创建一个简单的 console 工程,可以直接编译运行:

xmake run

各种 static/console/shared 工程,以及 c/c++/objc/swift 工程模板,都有提供( golang 的工程创建以及编译也在支持中。。)
waruqi
2017-01-10 14:49:42 +08:00
编译工程也不需要,额外的 像 qmake 那样,还要执行命令去生成 pro 工程文件,一般情况,只需要执行:

xmake

就可以直接编译,完全不依赖 makefile 和 make 工具。。

第三方 IDE 的工程文件生成,通过插件方式提示,只有在你需要生成 vsproj, makefile 的情况下(例如需要打开 vs 进行代码编辑),你再去生成就行了,通常情况下,只需要直接一键快速编译。。

并且直接编译的效率,也是优化过的,自动多任务编译。。
waruqi
2017-01-10 14:54:07 +08:00
并且同时支持: ios, android, windows, linux , mingw, 交叉编译等各种编译平台和模式

之间只需要在配置的时候,快速换平台就行:

xmake -p android
xmake -p iphoneos
xmake -p watchos
xmake -p linux
xmake -p windows
xmake -p mingw

只要代码跨平台,编译切平台、切 arch 都非常方便
thomaspaine
2017-01-10 16:33:28 +08:00
@waruqi 点赞!
leitwolf
2017-01-10 18:21:29 +08:00
支持支持,目前在用。
waruqi
2017-01-10 21:30:39 +08:00
@leitwolf 嗯嗯 感谢支持。。

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