MinGW/make errors

[ebiggers]

MinGW/make errors

[ebiggers]

Two problems:

1.) The MinGW distribution you're using does not put standard UNIX tools on the PATH, most critically a shell sh. To me this seems pretty broken and you should report it to the author of the distribution (how is anyone's makefile supposed to work without a sh?). Oddly enough, the distribution does include such tools in its git\bin and git\usr\bin directories and they do appear to work, but they are not added to PATH by the batch script you're supposed to run.

2.) The MinGW distribution only installs the compiler as plain gcc, not as x86_64-w64-mingw-gcc. This means you'll need to build with make CC=gcc. I also found that libdeflate's Makefile did not work properly in this (somewhat legitimate) case, so I've fixed it and also updated the README.

[JoeUX]

That's very helpful. At first I was puzzled by your references to git\bin and git\usr\bin since I didn't have any such directories in the MinGW install. Then I realized I chose his "without-git" build since I already have git installed separately. I had no idea I needed to put sh on my path until now. So I did that and the build runs through to the error at bottom:

CC       lib/aligned_malloc.pic.o
  CC       lib/deflate_decompress.pic.o
  CC       lib/x86_cpu_features.pic.o
  CC       lib/deflate_compress.pic.o
  CC       lib/adler32.pic.o
  CC       lib/zlib_decompress.pic.o
  CC       lib/zlib_compress.pic.o
  CC       lib/crc32.pic.o
  CC       lib/gzip_decompress.pic.o
  CC       lib/gzip_compress.pic.o
  CCLD     libdeflate.so
  CC       lib/aligned_malloc.o
  CC       lib/deflate_decompress.o
  CC       lib/x86_cpu_features.o
  CC       lib/deflate_compress.o
  CC       lib/adler32.o
  CC       lib/zlib_decompress.o
  CC       lib/zlib_compress.o
  CC       lib/crc32.o
  CC       lib/gzip_decompress.o
  CC       lib/gzip_compress.o
  AR       libdeflate.a
  GEN      programs/config.h
  CC       programs/gzip.o
  CC       programs/prog_util.o
  CC       programs/tgetopt.o
  CCLD     gzip
c:/mingw/bin/../lib/gcc/x86_64-w64-mingw32/6.1.0/../../../../x86_64-w64-mingw32/lib/../lib/libmingw32.a(lib64_libmingw32_a-crt0_c.o):crt0_c.c:(.text.startup+0x2e): undefined reference to `WinMain'
collect2.exe: error: ld returned 1 exit status
make: *** [Makefile:177: gzip] Error 1

Any ideas? I'm not sure what these Linux .a binaries are doing in this context.

Conversely, I was able to successfully compile using nmake, but that took a lot of digging and modifications to the .msc file, pointing it to the right includes, and only succeeds when using a special VS command line interface. I can write that up separately. The Windows C runtime and libraries were refactored for Windows 10, and relocated.

[ebiggers]

That's what I was referencing in (2); the Makefile didn't detect that just gcc could be MinGW. If you use the latest "master" from the git repository it should work.

[ebiggers]

I'm also surprised to hear that the Visual Studio / MSC build was so difficult to get working. I understand that for the command-line Microsoft tools to work at all to build any program, you need to have your command prompt set up with the appropriate environmental variables by using the dedicated shortcut or by sourcing vcvarsall. So that is a given. With regards to things being changed for Windows 10, I cannot say one way or another, but I would be surprised for them to have broken everything. But if you believe any specific changes are needed on my side then please go ahead and propose them (I don't regularly use the Microsoft tools).

[JoeUX]

Ah, sorry. Now it works!

On the nmake side, I had to add these paths to CFLAGS: -I"C:\Program Files (x86)\Windows Kits\10\Include\10.0.14393.0\ucrt" -I"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include"

And I had to use the Visual Studio x64 Native Tools Command Prompt (the one highlighted in the attached screenshot -- there are lots of command prompts.) If I use any other, I always get a linker error that it can't open msvcrt.lib. It's a mess.

[ebiggers]

Hmm. Well, I am closing this issue since your original problem was resolved, to the extent I could on my side. Feel free to do some more research into the problems with VS2015 if you are interested.

[JoeUX]

Roger that. Thanks for your help.

[bolunfeng]

Roger that. Thanks for your help.

D:\software\libdeflate>make
此时不应有 -Wpedantic。
此时不应有 -Wdeclaration-after-statement。
此时不应有 -Wmissing-prototypes。
此时不应有 -Wstrict-prototypes。
此时不应有 -Wvla。
系统找不到指定的路径。
'flags' 不是内部或外部命令，也不是可运行的程序
或批处理文件。
Makefile:179: recipe for target '.lib-cflags' failed
make: *** [.lib-cflags] Error 1

I want to build the project on windows 10 with MinGW,but I get the error.who can help me?