bugfix for package ilmbase (by Tony Theodore)

src/ilmbase.mk

@@ -29,7 +29,7 @@ define $(PKG)_BUILD
     echo '/* disabled */' > '$(1)/IlmThread/IlmThreadSemaphorePosixCompat.cpp'
     # Because of the previous changes, '--disable-threading' will not disable
     # threading. It will just disable the unwanted check for pthread.
-    cd '$(1)' && ./configure \
+    cd '$(1)' && $(SHELL) ./configure \
         --host='$(TARGET)' \
         --disable-shared \
         --prefix='$(PREFIX)/$(TARGET)' \

src/openexr.mk

@@ -22,7 +22,7 @@ endef
 define $(PKG)_BUILD
     # unpack and build a native version of ilmbase
     cd '$(1)' && $(call UNPACK_PKG_ARCHIVE,ilmbase)
-    cd '$(1)/$(ilmbase_SUBDIR)' && ./configure \
+    cd '$(1)/$(ilmbase_SUBDIR)' && $(SHELL) ./configure \
         --disable-shared \
         --prefix='$(1)/ilmbase' \
         --enable-threading=no \