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-rwxr-xr-xpkgs/development/tools/misc/blackmagic/helper.sh2
1 files changed, 2 insertions, 0 deletions
diff --git a/pkgs/development/tools/misc/blackmagic/helper.sh b/pkgs/development/tools/misc/blackmagic/helper.sh
index b4c7558885bb..991d0249e169 100755
--- a/pkgs/development/tools/misc/blackmagic/helper.sh
+++ b/pkgs/development/tools/misc/blackmagic/helper.sh
@@ -10,6 +10,8 @@ out=${out:-/tmp}
 
 ################################################################################
 export CFLAGS=$NIX_CFLAGS_COMPILE
+export MAKEFLAGS="\
+  ${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}}"
 
 ################################################################################
 PRODUCTS="blackmagic.bin blackmagic.hex blackmagic_dfu.bin blackmagic_dfu.hex"