diff --git a/recipes/fasta3/build.sh b/recipes/fasta3/build.sh
index 7e829f1a772f9..09b5954bf92f4 100755
--- a/recipes/fasta3/build.sh
+++ b/recipes/fasta3/build.sh
@@ -1,7 +1,9 @@
 #!/bin/bash
 
 mkdir -pv ${PREFIX}/bin ${PREFIX}/share
-export CFLAGS=-L${PREFIX}/lib
-make -C src -f ../make/Makefile.linux_sse2 all
+case $(uname) in
+  Darwin) make -C src -f ../make/Makefile.os_x86_64  all LIB_M='-lm' ;;
+       *) make -C src -f ../make/Makefile.linux_sse2 all LIB_M='-lm' ;;
+esac
 cp {bin/*36,bin/map_db,scripts/*.pl,misc/*.pl} ${PREFIX}/bin
 cp -R {doc,data,seq} ${PREFIX}/share
diff --git a/recipes/fasta3/libpath.patch b/recipes/fasta3/libpath.patch
deleted file mode 100644
index 18d4273584219..0000000000000
--- a/recipes/fasta3/libpath.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- make/Makefile.linux64_sse2	2015-07-28 18:27:10.000000000 +0000
-+++ make/Makefile.linux64_sse2.new	2016-01-08 16:29:05.597145563 +0000
-@@ -12,7 +12,7 @@
- 
- SHELL=/bin/bash
- 
--CC = gcc -g -O -msse2
-+CC = gcc -g -O -msse2 -L${PREFIX}/lib
- #CC= gcc -pg -g -O -msse2 -ffast-math
- #CC = gcc -g -DDEBUG -msse2
- 
diff --git a/recipes/fasta3/meta.yaml b/recipes/fasta3/meta.yaml
index f145564218ce3..f34e9c0789364 100644
--- a/recipes/fasta3/meta.yaml
+++ b/recipes/fasta3/meta.yaml
@@ -9,20 +9,13 @@ package:
 source:
   url: http://faculty.virginia.edu/wrpearson/fasta/fasta36/fasta-{{ version }}g.tar.gz
   sha256: {{ hash }}
-  patches:
-    - libpath.patch
 
 build:
-  number: 3
-  skip: True # [osx]
+  number: 4
 
 requirements:
   build:
     - {{ compiler('c') }}
-  host:
-    - zlib
-  run:
-    - zlib
 test:
   commands:
     - fasta36 > /dev/null