We have a problem! Depending on whether grafts are enabled, we end up building one of two different derivations for ‘guix’ (“real” derivations; none of them is a mere grafting derivation):
--8<---------------cut here---------------start------------->8--- $ guix describe Generation 241 Jan 16 2023 00:26:44 (current) guix 5c92197 repository URL: https://git.savannah.gnu.org/git/guix.git branch: master commit: 5c921977179489caef4a9e54ada6696fc86d2f0b $ guix build guix -n The following derivation would be built: /gnu/store/hfaffzsjia7x1rbwaryyygh01bskxvvx-guix-1.4.0-1.9fe5b49.drv $ guix build guix -n --no-grafts /gnu/store/zasc3k9cnk3l1kvi03a4wml33awg21gf-guix-1.4.0-1.9fe5b49 $ guix build guix -n --no-grafts -d /gnu/store/lczdc4jl1yl7cf4mrzqw2b9wiwmc5pwb-guix-1.4.0-1.9fe5b49.drv --8<---------------cut here---------------end--------------->8--- The difference between those two .drv is guile-gnutls-3.7.11.drv, which themselves differ in their gnulib-2022-12-06-1.440b528.drv. At the bottom, the difference is:
diff -ubBr --show-c-function --label \#\<buffer\ j2pxhf1brqdav3hkzzdxzbl89d39w584-gnulib-2022-12-06-1.440b528-builder\> --label \#\<buffer\ 0ilayj9ir5rva5yapqz34wl8l4la83w8-gnulib-2022-12-06-1.440b528-builder\> /tmp/buffer-content-DQf9jh /tmp/buffer-content-xYoO4v --- #<buffer j2pxhf1brqdav3hkzzdxzbl89d39w584-gnulib-2022-12-06-1.440b528-builder> +++ #<buffer 0ilayj9ir5rva5yapqz34wl8l4la83w8-gnulib-2022-12-06-1.440b528-builder> @@ -138,7 +138,7 @@ (find-ucd-files . names) (map find-ucd-file names)) (with-directory-excursion "lib" - (invoke "/gnu/store/p4piblscgrfrsc4sk4ln1vga2ncn502y-gcc-10.3.0/bin/gcc" "-O" "-Wall" "gen-uni-tables.c" "-Iunictype" "-o" "gen-uni-tables") + (invoke "/gnu/store/g8la8r45k1bc8yrgg6sw3rz930y0n3rl-gcc-10.3.0/bin/gcc" "-O" "-Wall" "gen-uni-tables.c" "-Iunictype" "-o" "gen-uni-tables") (apply invoke "./gen-uni-tables" (append (find-ucd-files "UnicodeData.txt" "PropList.txt" "DerivedCoreProperties.txt" "emoji/emoji-data.txt" "ArabicShaping.txt" "Scripts.txt" "Blocks.txt")
To be continued… Ludo’.