From cebe9ff64f5d4b2da3331483a22d73712014df51 Mon Sep 17 00:00:00 2001
From: Adrian Thurston <thurston@colm.net>
Date: Wed, 18 Dec 2019 16:49:34 +0200
Subject: don't run objective-c tests if gnustep config is not available

---
 configure.ac             |  2 ++
 test/ragel.d/gentests.sh | 11 ++++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 2f6cc116..4e144a79 100644
--- a/configure.ac
+++ b/configure.ac
@@ -260,6 +260,7 @@ AC_PATH_PROG([GO_BIN], [go])
 AC_PATH_PROG([OCAML_BIN], [ocaml])
 AC_PATH_PROG([RUST_BIN], [rustc])
 AC_PATH_PROG([JULIA_BIN], [julia])
+AC_PATH_PROG([GNUSTEP_CONFIG], [gnustep-config])
 
 echo -n "checking if julia is able to run programs ... "
 
@@ -283,6 +284,7 @@ SED_SUBST="$SED_SUBST -e 's|@GO_BIN@|${GO_BIN}|g'"
 SED_SUBST="$SED_SUBST -e 's|@OCAML_BIN@|${OCAML_BIN}|g'"
 SED_SUBST="$SED_SUBST -e 's|@RUST_BIN@|${RUST_BIN}|g'"
 SED_SUBST="$SED_SUBST -e 's|@JULIA_BIN@|${JULIA_BIN}|g'"
+SED_SUBST="$SED_SUBST -e 's|@GNUSTEP_CONFIG@|${GNUSTEP_CONFIG}|g'"
 
 AC_ARG_WITH(crack,
 	[AC_HELP_STRING([--with-crack], [location of crack install])],
diff --git a/test/ragel.d/gentests.sh b/test/ragel.d/gentests.sh
index 57c54a91..941ef448 100644
--- a/test/ragel.d/gentests.sh
+++ b/test/ragel.d/gentests.sh
@@ -107,6 +107,11 @@ ocaml_compiler="@OCAML_BIN@"
 rust_compiler="@RUST_BIN@"
 crack_interpreter="@CRACK_BIN@"
 julia_interpreter="@JULIA_BIN@"
+gnustep_config="@GNUSTEP_CONFIG@"
+
+if [ -z "$gnustep_config" ]; then
+	objc_compiler=""
+fi
 
 function test_error
 {
@@ -183,7 +188,11 @@ function lang_opts()
 			interpreted=false
 			compiler=$objc_compiler
 			host_ragel=$RAGEL_BIN
-			flags="`gnustep-config --objc-flags`"
+			if [ -z "$gnustep_config" ]; then
+				flags=""
+			else
+				flags="`$gnustep_config --objc-flags`"
+			fi
 			libs="-lobjc -lgnustep-base"
 			prohibit_flags=""
 		;;
-- 
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