diff --git a/Makefile b/Makefile
index cc67b2e7..56e5d714 100644
--- a/Makefile
+++ b/Makefile
@@ -14,6 +14,14 @@ ifndef PKGDOCDIR
 	export PKGDOCDIR := $(DESTDIR)/share/doc/$(PKGNAME)/
 endif
 
+# Command aliases for homebrew and non-gnu compatibilities
+ifndef GETOPT_CMD
+	export GETOPT_CMD := getopt
+endif
+ifndef READLINK_CMD
+	export READLINK_CMD := readlink
+endif
+
 SUBDIRS := src
 
 build:
diff --git a/src/Makefile b/src/Makefile
index 3515f23e..96ca9d0d 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -44,6 +44,12 @@ MODULES=journal.sh\
 FILES=$(MODULES) beakerlib.sh
 DEFDOCS=dictionary.vim docsman
 
+define portable_sed
+	# See comment inside https://unix.stackexchange.com/a/92907
+	sed -e $(1) $(2) > $(2).tmp
+	mv $(2).tmp $(2)
+endef
+
 .PHONY: install clean test
 
 ya.sh:
@@ -65,6 +71,10 @@ install: build
 	install -p profiling.sh $(DESTDIR)/share/beakerlib
 	install -p -m 644 dictionary.vim $(DESTDIR)/share/beakerlib
 
+# Patch installed beakerlib.sh
+	@$(call portable_sed, "s|declare -r __INTERNAL_GETOPT_CMD=\"getopt\"|declare -r __INTERNAL_GETOPT_CMD=\"${GETOPT_CMD}\"|", $(DESTDIR)/share/beakerlib/beakerlib.sh)
+	@$(call portable_sed, "s|declare -r __INTERNAL_READLINK_CMD=\"readlink\"|declare -r __INTERNAL_READLINK_CMD=\"${READLINK_CMD}\"|", $(DESTDIR)/share/beakerlib/beakerlib.sh)
+
 	install -p -m 644 xslt-templates/* $(DESTDIR)/share/beakerlib/xslt-templates
 
 	install -p -m 644 vim/ftdetect/beakerlib.vim $(DESTDIR)/share/vim/vimfiles/after/ftdetect