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caf606c90d
My previous nm patch handled all cases but one -- if the user set NM in the environment to a path which contained an option, libtool's nm detection tries to run nm against a copy of nm with the options in it: e.g. if NM was set to "nm --blargle", and nm was found in /usr/bin, the test would try to run "/usr/bin/nm --blargle /usr/bin/nm --blargle". This is unlikely to be desirable: in this case we should run "/usr/bin/nm --blargle /usr/bin/nm". Furthermore, as part of this nm has to detect when the passed-in $NM contains a path, and in that case avoid doing a path search itself. This too was thrown off if an option contained something that looked like a path, e.g. NM="nm -B../prev-gcc"; libtool then tries to run "nm -B../prev-gcc nm" which rarely works well (and indeed it looks to see whether that nm exists, finds it doesn't, and wrongly concludes that nm -p or whatever does not work). Fix all of these by clipping all options (defined as everything including and after the first " -") before deciding whether nm contains a path (but not using the clipped value for anything else), and then removing all options from the path-modified nm before looking to see whether that nm existed. NM=my-nm now does a path search and runs e.g. /usr/bin/my-nm -B /usr/bin/my-nm NM=/usr/bin/my-nm now avoids a path search and runs e.g. /usr/bin/my-nm -B /usr/bin/my-nm NM="my-nm -p../wombat" now does a path search and runs e.g. /usr/bin/my-nm -p../wombat -B /usr/bin/my-nm NM="../prev-binutils/new-nm -B../prev-gcc" now avoids a path search: ../prev-binutils/my-nm -B../prev-gcc -B ../prev-binutils/my-nm This seems to be all combinations, including those used by GCC bootstrap (which, before this commit, fails to bootstrap when configured --with-build-config=bootstrap-lto, because the lto plugin is now using --export-symbols-regex, which requires libtool to find a working nm, while also using -B../prev-gcc to point at the lto plugin associated with the GCC just built.) Regenerate all affected configure scripts. * libtool.m4 (LT_PATH_NM): Handle user-specified NM with options, including options containing paths. |
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| .. | ||
| aarch64 | ||
| arm | ||
| avr | ||
| bfin | ||
| bpf | ||
| common | ||
| cr16 | ||
| cris | ||
| d10v | ||
| erc32 | ||
| example-synacor | ||
| frv | ||
| ft32 | ||
| h8300 | ||
| igen | ||
| iq2000 | ||
| lm32 | ||
| m4 | ||
| m32c | ||
| m32r | ||
| m68hc11 | ||
| mcore | ||
| microblaze | ||
| mips | ||
| mn10300 | ||
| moxie | ||
| msp430 | ||
| or1k | ||
| ppc | ||
| pru | ||
| riscv | ||
| rl78 | ||
| rx | ||
| sh | ||
| testsuite | ||
| v850 | ||
| .gitignore | ||
| aclocal.m4 | ||
| arch-subdir.mk.in | ||
| ChangeLog-2021 | ||
| config.h.in | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| gdbinit.in | ||
| MAINTAINERS | ||
| Makefile.am | ||
| Makefile.in | ||
| README-HACKING | ||