Mathieu Benoit
f87502622a
Three more upstream PKGBUILDs assume x86_64, each in a different way, and each is dropped rather than repaired because the thing being dropped is architecture-specific by nature. gcc: Ada and D are written in themselves and need an existing compiler of the same language. Ubuntu ships gnat, but not one GCC 15 accepts, and there is no D bootstrap compiler here at all. Modula-2 and COBOL have the same shape. Front ends reduced to c, c++, fortran, lto, objc and obj-c++, which is everything this port and ERPLibre compile. binutils: gold is x86-centric, deprecated upstream since 2.44, and built by no distribution that ships s390x. ld.bfd is the linker on Z. binutils builds once gold is disabled -- measured. libtool: the lib32-libltdl split package is i686-on-x86_64 multilib. Its build step is already guarded by CARCH, but prepare() copies the tree to src/libtool32 unconditionally and the package function then packages a tree nobody built. Two host-layout bridges were also needed. Ubuntu multiarch puts asm/, bits/, gnu/ and sys/sdt.h under /usr/include/s390x-linux-gnu, while glibc builds with -nostdinc and expects the classic layout: fatal error: asm/errno.h: No such file or directory fatal error: sys/sdt.h: No such file or directory Symlinks make the host look like Arch for those paths. sys/ needed the files linked, not the directory, since /usr/include/sys already exists. --- FR --- Trois PKGBUILD amont de plus supposent x86_64, chacun a sa maniere, et chacun est retire plutot que repare : ce qu on retire est par nature propre a une architecture. gcc : Ada et D sont ecrits en eux-memes et reclament un compilateur existant du meme langage. Ubuntu livre gnat, mais pas une version que GCC 15 accepte, et il n y a ici aucun compilateur D d amorcage. Modula-2 et COBOL posent le meme probleme. Les frontaux se reduisent a c, c++, fortran, lto, objc et obj-c++, ce qui couvre tout ce que ce portage et ERPLibre compilent. binutils : gold est centre sur x86, abandonne en amont depuis 2.44, et construit par aucune distribution livrant s390x. Sur Z, l editeur de liens est ld.bfd. binutils se construit des que gold est desactive -- mesure. libtool : le paquet scinde lib32-libltdl est du multilib i686 sur x86_64. Son etape de compilation est deja gardee par CARCH, mais prepare() copie l arbre vers src/libtool32 sans condition, et la fonction de paquet empaquette ensuite un arbre que personne n a bati. Deux ponts de disposition d hote etaient aussi necessaires. Le multiarch d Ubuntu place asm/, bits/, gnu/ et sys/sdt.h sous /usr/include/s390x-linux-gnu, quand glibc compile avec -nostdinc et attend la disposition classique : fatal error: asm/errno.h: No such file or directory fatal error: sys/sdt.h: No such file or directory Des liens symboliques donnent a l hote l allure d Arch pour ces chemins. Pour sys/ il faut lier les fichiers et non le repertoire, puisque /usr/include/sys existe deja. Assisted-by: Claude Opus 5
24 lines
1.2 KiB
Bash
Executable file
24 lines
1.2 KiB
Bash
Executable file
#!/usr/bin/env bash
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# gcc: keep only the front ends that bootstrap without an existing compiler
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# of the same language.
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#
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# configure: error: GNAT is required to build ada
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# configure: error: GDC is required to build d
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#
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# Ada and D are written in themselves: building their front ends needs an
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# existing Ada or D compiler of a compatible vintage. Ubuntu ships gnat, but
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# not one GCC 15 accepts, and D has no bootstrap compiler here at all.
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# Modula-2 and COBOL have the same shape of problem.
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#
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# Nothing in a core bootstrap -- and nothing in ERPLibre -- is written in any
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# of them. C, C++, Fortran, LTO and the Objective-C front ends cover
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# everything the rest of this port compiles.
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#
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# STAGE 1 CONCESSION, not a permanent one. Once the port is self-hosting its
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# own gcc can bootstrap the others, and this hook should be revisited.
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set -euo pipefail
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sed -i 's/^\(\s*--enable-languages=\).*\\$/\1c,c++,fortran,lto,objc,obj-c++ \\/' PKGBUILD
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grep -m1 -- '--enable-languages' PKGBUILD
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grep -qE 'enable-languages=[^ ]*(ada|,d,|m2|cobol)' PKGBUILD && {
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echo "gcc: a self-hosted front end is still enabled" >&2; exit 1; }
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echo "gcc: front ends reduced to those that bootstrap from C"
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