问题
I'm trying to apply these patches:
http://tehsausage.com/mingw-to-string
So that I can use std string stuff that I should have access to anyways.
I have MinGW 4.7.2, and at first, I tried copying the zip files with no luck.
Now I'm trying to manually apply the patches. I copied the patch information into a file.patch, placed it in the same folder as the file I am patching, and ran
patch < file.patch
and then I get:
patching file stdio.h
patch unexpectedly ends in middle of line
Hunk #1 FAILED at 574.
patch unexpectedly ends in middle of line
1 out of 1 hunk FAILED -- saving rejects to file stdio.h.rej
patch unexpectedly ends in middle of line
I made sure that there is no extra white space at the end..
Please help!
回答1:
OK, installed the latest mingw from the web-site, downloaded the patch files and made sure they were clean.
I applied each one individually, and they worked without issue. There was a warning that it was 'Stripping the trailing CRs from the file', but it worked without issue.
each patch is applied in the appropriate directory; e.g. the stdio.patch is applied to stdio.h which is in /mingw/include using:
patch </path/to/stdio.patch
ditto for wchar.patch
The os_defines.h file is found at /mingw/lib/gcc/mingw32/4.7.2/include/c++/mingw32/bits, and the patch works properly for that one as well.
I created a github with the patches at https://github.com/petesh/mingwpatches.git - you can clone the repository, or download the individual files from there. Each of them should work correctly without more than a complaint about the trailing CR warning.
回答2:
After looking at the patch files, you probably need to use the -c option to the patch command. This tells patch that the patch-files are from a context diff.
E.g.
$ patch -c < file.patch
来源：https://stackoverflow.com/questions/15991290/need-help-applying-mingw-patches-for-std-string-getting-unexpected-ends