mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-18 07:46:09 +01:00
51 lines
1.6 KiB
Diff
51 lines
1.6 KiB
Diff
commit 164ba50fc74b980f77047080b2ae1ea099ae9b27
|
|
Author: Emery Hemingway <ehmry@posteo.net>
|
|
Date: Mon Sep 7 14:09:22 2020 +0200
|
|
|
|
Load libaries by absolute path on NixOS
|
|
|
|
If "nixbuild" is defined then choose dynamic runtime libraries by
|
|
searching $NIX_LDFLAGS at compile-time.
|
|
|
|
Fix #15194
|
|
|
|
diff --git a/lib/pure/dynlib.nim b/lib/pure/dynlib.nim
|
|
index f31ae94dd..debed9c07 100644
|
|
--- a/lib/pure/dynlib.nim
|
|
+++ b/lib/pure/dynlib.nim
|
|
@@ -56,6 +56,9 @@
|
|
|
|
import strutils
|
|
|
|
+when defined(nixbuild):
|
|
+ import os
|
|
+
|
|
type
|
|
LibHandle* = pointer ## a handle to a dynamically loaded library
|
|
|
|
@@ -95,6 +98,25 @@ proc libCandidates*(s: string, dest: var seq[string]) =
|
|
libCandidates(prefix & middle & suffix, dest)
|
|
else:
|
|
add(dest, s)
|
|
+ when defined(nixbuild):
|
|
+ # Nix doesn't have a global library directory so
|
|
+ # load libraries using an absolute path if one
|
|
+ # can be derived from NIX_LDFLAGS.
|
|
+ #
|
|
+ # During Nix/NixOS packaging the line "define:nixbuild"
|
|
+ # should be appended to the ../../config/nim.cfg file
|
|
+ # to enable this behavior by default.
|
|
+ #
|
|
+ var libDirs = split(getEnv("LD_LIBRARY_PATH"), ':')
|
|
+ for flag in split(getEnv("NIX_LDFLAGS")):
|
|
+ if flag.startsWith("-L"):
|
|
+ libDirs.add(flag[2..flag.high])
|
|
+ for lib in dest:
|
|
+ for dir in libDirs:
|
|
+ let abs = dir / lib
|
|
+ if existsFile(abs):
|
|
+ dest = @[abs]
|
|
+ return
|
|
|
|
proc loadLibPattern*(pattern: string, globalSymbols = false): LibHandle =
|
|
## loads a library with name matching `pattern`, similar to what `dlimport`
|