| From 2db4d9974052e28f25252b3204a73dd25de1dd89 Mon Sep 17 00:00:00 2001 |
| From: Gyorgy Sarvari <skandigraun@gmail.com> |
| Date: Sat, 25 Jan 2025 13:09:00 +0100 |
| Subject: [PATCH] Use default cc from environment variable |
| |
| In case the system uses a custom c compiler instead of cc |
| (e.g. for cross-compiling), probing system features can |
| fail or can misidentify the features due to the incorrect C compiler. |
| |
| Instead of using only "cc" for probing features, check if the CC environment |
| variable has a custom C compiler set. If it is present, use that instead of |
| "cc". If it is not present, fall back to "cc". |
| |
| Upstream-Status: Submitted [https://github.com/osvenskan/posix_ipc/pull/56] |
| --- |
| prober.py | 7 +++++-- |
| 1 file changed, 5 insertions(+), 2 deletions(-) |
| |
| diff --git a/prober.py b/prober.py |
| index 48432b7..ace6d3b 100644 |
| --- a/prober.py |
| +++ b/prober.py |
| @@ -52,14 +52,17 @@ def print_bad_news(value_name, default): |
| def does_build_succeed(filename, linker_options=""): |
| # Utility function that returns True if the file compiles and links |
| # successfully, False otherwise. |
| - # Two things to note here -- |
| + # Three things to note here -- |
| # - If there's a linker option like -lrt, it needs to come *after* |
| # the specification of the C file or linking will fail on Ubuntu 11.10 |
| # (maybe because of the gcc version?) |
| # - Some versions of Linux place the sem_xxx() functions in libpthread. |
| # Rather than testing whether or not it's needed, I just specify it |
| # everywhere since it's harmless to specify it when it's not needed. |
| - cmd = "cc -Wall -o ./prober/foo ./prober/%s %s -lpthread" % (filename, linker_options) |
| + # - In case the used C compiler is not cc, take it from the CC environment |
| + # variable |
| + cc = os.getenv("CC", "cc") |
| + cmd = "%s -Wall -o ./prober/foo ./prober/%s %s -lpthread" % (cc, filename, linker_options) |
| |
| p = subprocess.Popen(cmd, shell=True, stdout=STDOUT, stderr=STDERR) |
| |
| -- |
| 2.48.1 |
| |
