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556a8cd6f9
These prefixes must have a trailing slash.[0] When this slash is
omitted, gcc fails to find ?crt*.o files when LIBRARY_PATH is not set:
$ uname -a
Linux guix 6.10.14-gnu #1 SMP PREEMPT_DYNAMIC 1 aarch64 GNU/Linux
$ guix shell --pure gcc-toolchain -- /bin/sh -c 'LIBRARY_PATH= gcc hello.c'
ld: cannot find crt1.o: No such file or directory
ld: cannot find crti.o: No such file or directory
collect2: error: ld returned 1 exit status
I ran into this when building Yocto images in Guix containers, where
bitbake resets the environment and expects an FHS system.
Looking at `-print-search-dirs', the prefix is definitely present at the
end of the startfiles prefixes list[1]:
$ guix shell --pure gcc-toolchain -- /bin/sh -c 'LIBRARY_PATH= gcc -print-search-dirs'
<...>
libraries: <...>:/gnu/store/3gvs8sw95ldfypr1n688svl5brwdmdi9-glibc-2.39/lib
However, looking closer with strace, gcc is trying to find crt1.o at
`/lib../lib/crt1.o' and `/libcrt1.o', which are paths that have been
mangled due to the missing slash:
$ guix shell --pure gcc-toolchain strace -- /bin/sh -c 'LIBRARY_PATH= strace -e trace=file gcc hello.c' 2>&1 | grep /gnu/store/3gvs8sw95ldfypr1n688svl5brwdmdi9-glibc-2.39/lib
<...>
faccessat(AT_FDCWD, "/gnu/store/3gvs8sw95ldfypr1n688svl5brwdmdi9-glibc-2.39/lib../lib/crt1.o", R_OK) = -1 ENOENT (No such file or directory)
faccessat(AT_FDCWD, "/gnu/store/3gvs8sw95ldfypr1n688svl5brwdmdi9-glibc-2.39/libcrt1.o", R_OK) = -1 ENOENT (No such file or directory)
<...>
[0]: <https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/gcc.cc;h=92c92996401005a9ad17fecd1af4385833785cec;hb=HEAD#l1610>
[1]: <https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/gcc.cc;h=92c92996401005a9ad17fecd1af4385833785cec;hb=HEAD#l8604>
* gnu/packages/gcc.scm (gcc-4.7): Fix replaced startfile prefix.
[arguments]: <#:phases>: Fix it.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
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| bootloader | ||
| build | ||
| home | ||
| installer | ||
| machine | ||
| packages | ||
| services | ||
| system | ||
| tests | ||
| artwork.scm | ||
| bootloader.scm | ||
| ci.scm | ||
| compression.scm | ||
| home.scm | ||
| image.scm | ||
| installer.scm | ||
| local.mk | ||
| machine.scm | ||
| packages.scm | ||
| services.scm | ||
| system.scm | ||
| tests.scm | ||