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| author | Ben Gamari <ben@smart-cactus.org> | 2021-12-23 11:53:25 -0500 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2022-01-11 19:39:32 -0500 |
| commit | 247cd336af9b9367697e0b5a7a82c5227f986a97 (patch) | |
| tree | 1f0c9f0331b90e526172fe25c860f67ed7b592de /configure.ac | |
| parent | 6737c8e1ed67a2ec3f1fa3e91cb279f689d3da6f (diff) | |
| download | haskell-247cd336af9b9367697e0b5a7a82c5227f986a97.tar.gz | |
rts: Only declare environ when necessary
Previously we would unconditionally provide a declaration for `environ`,
even if `<unistd.h>` already provided one. This would result in
`-Werror` builds failing on some platforms.
Also `#include <unistd.h>` to ensure that the declaration is visible.
Fixes #20861.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index a4694df27a..cb670a2a14 100644 --- a/configure.ac +++ b/configure.ac @@ -966,6 +966,9 @@ AC_CHECK_HEADERS([sys/cpuset.h], [], [], #endif ]]) +dnl ** check whether a declaration for `environ` is provided by libc. +FP_CHECK_ENVIRON + dnl ** check if it is safe to include both <time.h> and <sys/time.h> AC_HEADER_TIME |