[PATCH v6 4/7] env: Allow U-Boot scripts to be placed in a .env file

[Wolfgang Denk]

Dear Simon,

In message <CAPnjgZ3KS06_cy8mLL2V-ezqZYO6QEecz2C78hVaUQAnAz0fNg at mail.gmail.com> you wrote:
>
> I thought you were trying to use + at the end of a variable.
>
> I used:
>
> fred\+=aaa
>
> and got
>
> cc1: warning: unknown escape sequence: '\=''
>
> You can try it yourself by editing sandbox.env in the
> u-boot-dm/env-working tree.

Hmmm...

-> cat foo.c
#define A ampersand
#define B berta

foo\+=B;
-> gcc -E foo.c
# 0 "foo.c"
# 0 "<built-in>"
# 0 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 0 "<command-line>" 2
# 1 "foo.c"



foo\+=berta;



-> cat bar.c
fred\+=aaa
-> gcc -E bar.c
# 0 "bar.c"
# 0 "<built-in>"
# 0 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 0 "<command-line>" 2
# 1 "bar.c"
fred\+=aaa


I do not see this problem...

Best regards,

Wolfgang Denk

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