From 26547013a51f32414232dc1a98eeda665583fbf2 Mon Sep 17 00:00:00 2001
From: Albert Safin <xzfcpw@gmail.com>
Date: Fri, 20 Sep 2019 02:45:12 +0000
Subject: [PATCH] bintools-wrapper: avoid subshells: glob match

---
 pkgs/build-support/bintools-wrapper/setup-hook.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/build-support/bintools-wrapper/setup-hook.sh b/pkgs/build-support/bintools-wrapper/setup-hook.sh
index 27d3e6ad512..2e15fa95c79 100644
--- a/pkgs/build-support/bintools-wrapper/setup-hook.sh
+++ b/pkgs/build-support/bintools-wrapper/setup-hook.sh
@@ -24,7 +24,8 @@ bintoolsWrapper_addLDVars () {
         # Python and Haskell packages often only have directories like $out/lib/ghc-8.4.3/ or
         # $out/lib/python3.6/, so having them in LDFLAGS just makes the linker search unnecessary
         # directories and bloats the size of the environment variable space.
-        if [[ -n "$(echo $1/lib/lib*)" ]]; then
+        local -a glob=( $1/lib/lib* )
+        if [ "${#glob[*]}" -gt 0 ]; then
             export NIX_${role_pre}LDFLAGS+=" -L$1/lib"
         fi
     fi