ddidderr/zstd-rs
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Check for build environment instead of just _GNU_SOURCE

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Fixes the build on OpenBSD and NetBSD. It is too easy for _GNU_SOURCE
to be defined even on non-Linux systems. Found via py-zstandard with
the embedded copy of zstandard and Python defines _GNU_SOURCE.

Also simplify the Linux checking, there is no need to check the rest
of the symbol names.
This commit is contained in:
Brad Smith
2025-08-19 20:06:24 -04:00
parent cfeb29e397
commit 0d1f8de9ad
1 changed files with 7 additions and 5 deletions
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lib/dictBuilder/cover.c
+7 -5
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@@ -21,10 +21,12 @@
/*-************************************* /*-*************************************
* Dependencies * Dependencies
***************************************/ ***************************************/
/* qsort_r is an extension. */ /* qsort_r is an extension.
#if defined(__linux) || defined(__linux__) || defined(linux) || defined(__gnu_linux__) || \ *
defined(__CYGWIN__) || defined(__MSYS__) * Android NDK does not ship qsort_r().
# if !defined(_GNU_SOURCE) && !defined(__ANDROID__) /* NDK doesn't ship qsort_r(). */ */
#if (defined(__linux__) && !defined(__ANDROID__)) || defined(__CYGWIN__) || defined(__MSYS__)
# ifndef _GNU_SOURCE
# define _GNU_SOURCE # define _GNU_SOURCE
# endif # endif
#endif #endif
@@ -77,7 +79,7 @@
#ifndef ZDICT_QSORT #ifndef ZDICT_QSORT
# if defined(__APPLE__) # if defined(__APPLE__)
# define ZDICT_QSORT ZDICT_QSORT_APPLE /* uses qsort_r() with a different order for parameters */ # define ZDICT_QSORT ZDICT_QSORT_APPLE /* uses qsort_r() with a different order for parameters */
# elif defined(_GNU_SOURCE) # elif (defined(__linux__) && !defined(__ANDROID__)) || defined(__CYGWIN__) || defined(__MSYS__)
# define ZDICT_QSORT ZDICT_QSORT_GNU /* uses qsort_r() */ # define ZDICT_QSORT ZDICT_QSORT_GNU /* uses qsort_r() */
# elif defined(_WIN32) && defined(_MSC_VER) # elif defined(_WIN32) && defined(_MSC_VER)
# define ZDICT_QSORT ZDICT_QSORT_MSVC /* uses qsort_s() with a different order for parameters */ # define ZDICT_QSORT ZDICT_QSORT_MSVC /* uses qsort_s() with a different order for parameters */