Only make the Windows installer if ISCC is set

Now that we make bindists during validate, we can't assume that ISCC
is available.

diff --git a/ghc.mk b/ghc.mk
index 39147bf..1ae3077 100644 (file)
--- a/ghc.mk
+++ b/ghc.mk
@@ -915,7 +915,11 @@ windows-binary-dist-prep:
        cd bindistprep && "$(TAR)" cf - $(BIN_DIST_NAME) | bzip2 -c > ../$(BIN_DIST_PREP_TAR_BZ2)
 
 windows-installer:
+ifeq "$(ISCC)" ""
+       @echo No ISCC, so not making installer
+else
        "$(ISCC)" /O. /Fbindistprep/$(WINDOWS_INSTALLER_BASE) - < distrib/ghc.iss
+endif
 
 nTimes = set -e; for i in `seq 1 $(1)`; do echo Try "$$i: $(2)"; if $(2); then break; fi; done