gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / modules / alloca-opt

diff --git a/modules/alloca-opt b/modules/alloca-opt
index 9ced93b..d4468de 100644 (file)
--- a/modules/alloca-opt
+++ b/modules/alloca-opt
@@ -17,12 +17,17 @@ BUILT_SOURCES += $(ALLOCA_H)
 
 # We need the following in order to create <alloca.h> when the system
 # doesn't have one that works with the given compiler.
-alloca.h: alloca.in.h
+if GL_GENERATE_ALLOCA_H
+alloca.h: alloca.in.h $(top_builddir)/config.status
        $(AM_V_GEN)rm -f $@-t $@ && \
        { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
          cat $(srcdir)/alloca.in.h; \
        } > $@-t && \
        mv -f $@-t $@
+else
+alloca.h: $(top_builddir)/config.status
+       rm -f $@
+endif
 MOSTLYCLEANFILES += alloca.h alloca.h-t
 
 Include: