Patch copied from https://github.com/archlinux/svntogit-packages/blob/packages/wireguard-dkms/trunk/lts.diff
This fixes:
```
In file included from <command-line>:
/build/source/src/compat/compat-asm.h:44: warning: "SYM_FUNC_START" redefined
44 | #define SYM_FUNC_START ENTRY
|
In file included from /build/source/src/compat/compat-asm.h:9,
from <command-line>:
/nix/store/cz60577g5hwk78c2z7rhxl21bklaqr0d-linux-5.4.77-dev/lib/modules/5.4.77-hardened/source/include/linux/linkage.h:218: note: this is the location of the previous definition
218 | #define SYM_FUNC_START(name) \
|
In file included from <command-line>:
/build/source/src/compat/compat-asm.h:45: warning: "SYM_FUNC_END" redefined
45 | #define SYM_FUNC_END ENDPROC
|
In file included from /build/source/src/compat/compat-asm.h:9,
from <command-line>:
/nix/store/cz60577g5hwk78c2z7rhxl21bklaqr0d-linux-5.4.77-dev/lib/modules/5.4.77-hardened/source/include/linux/linkage.h:265: note: this is the location of the previous definition
265 | #define SYM_FUNC_END(name) \
|
/build/source/src/crypto/zinc/blake2s/blake2s-x86_64.S: Assembler messages:
/build/source/src/crypto/zinc/blake2s/blake2s-x86_64.S:50: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/blake2s/blake2s-x86_64.S:176: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/blake2s/blake2s-x86_64.S:180: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/blake2s/blake2s-x86_64.S:257: Error: invalid character '(' in mnemonic
make[3]: *** [/nix/store/cz60577g5hwk78c2z7rhxl21bklaqr0d-linux-5.4.77-dev/lib/modules/5.4.77-hardened/source/scripts/Makefile.build:348: /build/source/src/crypto/zinc/blake2s/blake2s-x86_64.o] Error 1
make[3]: *** Waiting for unfinished jobs....
In file included from <command-line>:
/build/source/src/compat/compat-asm.h:44: warning: "SYM_FUNC_START" redefined
44 | #define SYM_FUNC_START ENTRY
|
In file included from /build/source/src/compat/compat-asm.h:9,
from <command-line>:
/nix/store/cz60577g5hwk78c2z7rhxl21bklaqr0d-linux-5.4.77-dev/lib/modules/5.4.77-hardened/source/include/linux/linkage.h:218: note: this is the location of the previous definition
218 | #define SYM_FUNC_START(name) \
|
In file included from <command-line>:
/build/source/src/compat/compat-asm.h:45: warning: "SYM_FUNC_END" redefined
45 | #define SYM_FUNC_END ENDPROC
|
In file included from /build/source/src/compat/compat-asm.h:9,
from <command-line>:
/nix/store/cz60577g5hwk78c2z7rhxl21bklaqr0d-linux-5.4.77-dev/lib/modules/5.4.77-hardened/source/include/linux/linkage.h:265: note: this is the location of the previous definition
265 | #define SYM_FUNC_END(name) \
|
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S: Assembler messages:
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:123: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:185: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:187: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:319: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:1016: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:1616: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:1620: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:1810: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:1812: Error: invalid character '(' in mnemonic
/build/source/src/crypto/zinc/chacha20/chacha20-x86_64.S:1959: Error: invalid character '(' in mnemonic
make[3]: *** [/nix/store/cz60577g5hwk78c2z7rhxl21bklaqr0d-linux-5.4.77-dev/lib/modules/5.4.77-hardened/source/scripts/Makefile.build:348: /build/source/src/crypto/zinc/chacha20/chacha20-x86_64.o] Error 1
make[2]: *** [/nix/store/cz60577g5hwk78c2z7rhxl21bklaqr0d-linux-5.4.77-dev/lib/modules/5.4.77-hardened/source/Makefile:1729: /build/source/src] Error 2
make[1]: *** [/nix/store/cz60577g5hwk78c2z7rhxl21bklaqr0d-linux-5.4.77-dev/lib/modules/5.4.77-hardened/source/Makefile:179: sub-make] Error 2
make: *** [Makefile:26: module] Error 2
builder for '/nix/store/hll3sjyrwa55arzlsxnbacqdd8s842l1-wireguard-1.0.20200908.drv' failed with exit code 2
```
sudo the package is not suid, so remove it from the PATH. Extend
PATH with $PATH to fetch sudo from the outer PATH. Move the generation
of `path` in to Nix, so the sed expression can use single quotes,
which prevents $PATH being interpolated at build-time.
