diff --git a/recipes/meryl/build.sh b/recipes/meryl/build.sh
index 5a69fa2ff4065..19607a9601415 100644
--- a/recipes/meryl/build.sh
+++ b/recipes/meryl/build.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 
-make -C src BUILD_DIR="$(pwd)" \
+set -xe
+
+make -C src -j ${CPU_COUNT} BUILD_DIR="$(pwd)" \
 	TARGET_DIR="${PREFIX}" \
 	CXX="${CXX}" \
 	CXXFLAGS="${CXXFLAGS} -O3 -I${PREFIX}/include" \
diff --git a/recipes/meryl/meta.yaml b/recipes/meryl/meta.yaml
index 43e0d6f4d274f..51d7c11f6b14e 100644
--- a/recipes/meryl/meta.yaml
+++ b/recipes/meryl/meta.yaml
@@ -14,7 +14,7 @@ source:
     - 0002-macos-cmath.patch  # [osx]
 
 build:
-  number: 0
+  number: 1
   run_exports:
     - {{ pin_subpackage('meryl', max_pin="x") }}
 
@@ -42,6 +42,9 @@ about:
   license: 'Public Domain'
 
 extra:
+  additional-platforms:
+    - linux-aarch64
+    - osx-arm64
   identifiers:
     - biotools:meryl
     - usegalaxy-eu:meryl
diff --git a/recipes/winnowmap/build.sh b/recipes/winnowmap/build.sh
index 998e9455e1e77..b71ff68644fd7 100644
--- a/recipes/winnowmap/build.sh
+++ b/recipes/winnowmap/build.sh
@@ -1,6 +1,8 @@
 #! /bin/sh
 
-make \
+set -xe
+
+make -j ${CPU_COUNT} \
   CPPFLAGS="${CXXFLAGS} ${CPPFLAGS} -g -Wall -O2 -DHAVE_KALLOC -fopenmp -std=c++11 -Wno-sign-compare -Wno-write-strings -Wno-unused-but-set-variable ${LDFLAGS}"
 
 install -d "${PREFIX}/bin"
diff --git a/recipes/winnowmap/meta.yaml b/recipes/winnowmap/meta.yaml
index 5bfe83e16eb65..5d154da7c0b99 100644
--- a/recipes/winnowmap/meta.yaml
+++ b/recipes/winnowmap/meta.yaml
@@ -12,7 +12,9 @@ source:
     - 0001-Un-vendor-meryl.patch
 
 build:
-  number: 2
+  number: 3
+  run_exports:
+    - {{ pin_subpackage("winnowmap", max_pin="x") }}
 
 requirements:
   build: