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| author | Ben Gamari <ben@smart-cactus.org> | 2021-01-04 15:57:46 -0500 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-01-17 05:50:31 -0500 |
| commit | 3d3fd7d89dd6c28d4aedf76fdcdbd514414f4fe1 (patch) | |
| tree | fd16e0eefc565337d7619ad3791977ee64469fe4 /configure.ac | |
| parent | d56fdad76c5fe025ad628aad727c8a1c7e745513 (diff) | |
| download | haskell-3d3fd7d89dd6c28d4aedf76fdcdbd514414f4fe1.tar.gz | |
rts/linker: Don't assume existence of dlinfo
The native-code codepath uses dlinfo to identify memory regions owned by
a loaded dynamic object, facilitating safe unload. Unfortunately, this
interface is not always available. Add an autoconf check for it and
introduce a safe fallback behavior.
Fixes #19159.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index c9cf01e713..d3fbb48b86 100644 --- a/configure.ac +++ b/configure.ac @@ -1126,6 +1126,8 @@ AS_IF([test "$UseSystemLibFFI" = "YES"], [ dnl ** check whether we need -ldl to get dlopen() AC_CHECK_LIB([dl], [dlopen]) AC_CHECK_LIB([dl], [dlopen], [AC_SUBST([CabalHaveLibdl], [True])], [AC_SUBST([CabalHaveLibdl], [False])]) +dnl ** check whether we have dlinfo +AC_CHECK_FUNCS([dlinfo]) dnl -------------------------------------------------- dnl * Miscellaneous feature tests |