Fixing github tests on macos

Makefile

@@ -1,5 +1,7 @@
 SHELL := bash
 INSTALL ?= install
+UNAME := $(shell uname);
+REALPATH := $(shell if [ "$(UNAME)" == "Darwin" ]; then echo grealpath; else echo realpath; fi)
 
 # Make sure we have git:
 ifeq ($(shell which git),)
@@ -22,7 +24,7 @@ INSTALL_BIN  ?= $(PREFIX)/bin
 INSTALL_LIB  ?= $(PREFIX)/share/$(NAME)
 INSTALL_EXT  ?= $(INSTALL_LIB)/$(NAME).d
 INSTALL_MAN1 ?= $(PREFIX)/share/man/man1
-LINK_REL_DIR := $(shell realpath --relative-to=$(INSTALL_BIN) $(INSTALL_LIB))
+LINK_REL_DIR := $(shell $(REALPATH) --relative-to=$(INSTALL_BIN) $(INSTALL_LIB))
 
 # Docker variables:
 DOCKER_TAG ?= 0.0.6
@@ -49,6 +51,7 @@ help:
 
 .PHONY: test
 test:
+	@echo UNAME: '$(UNAME)'
 	prove $(prove) $(test)
 
 test-all: test docker-tests

lib/git-subrepo

@@ -12,7 +12,8 @@ set -e
 export FILTER_BRANCH_SQUELCH_WARNING=1
 
 # Import Bash+ helper functions:
-SUBREPO_EXT_DIR="$(dirname "$(realpath "${BASH_SOURCE[0]}")")/git-subrepo.d" # replaced by `make install`
+REALPATH=$(if [ "$(uname)" == "Linux" ]; then echo realpath; else echo grealpath; fi)
+SUBREPO_EXT_DIR="$(dirname "$($REALPATH "${BASH_SOURCE[0]}")")/git-subrepo.d" # replaced by `make install`
 source "${SUBREPO_EXT_DIR}/bash+.bash"
 bash+:import :std can version-check
 

test/setup

@@ -2,7 +2,9 @@
 
 set -e
 
-export LC_ALL=C.UTF-8
+if [ "$(uname)" == "Linux" ]; then
+	export LC_ALL=C.UTF-8
+fi
 
 # Get the location of this script
 SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )