(install-common-headers): Avoid ! operator, for assert.h.

From-SVN: r2347

diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 12cf789d2d4e87ea75802bc39cf58c8c420f8bdc..aca0377f4ea0f93a89b09d4c0b820d7828f1dca1 100644 (file)
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -1491,8 +1491,16 @@ install-common-headers: install-dir $(USER_H) gvarargs.h gstdarg.h gstddef.h
        done
 # Put assert.h in /usr/local/include, so it won't override GNU libc's assert.h.
 # Don't replace the assert.h already there if it is not from GCC.
-       if [ -f $(assertdir)/assert.h ] && ! grep "__eprintf" $(assertdir)/assert.h; \
-       then true; \
+# This code would be simpler if it tested for -f ... && ! grep ...
+# but supposedly the ! operator is missing in sh on some systems.
+       if [ -f $(assertdir)/assert.h ]; \
+       then \
+         if grep "__eprintf" $(assertdir)/assert.h; \
+           rm -f $(assertdir)/assert.h; \
+           $(INSTALL_DATA) $(srcdir)/assert.h $(assertdir)/assert.h; \
+           chmod a-x $(assertdir)/include/assert.h; \
+         else true; \
+         fi; \
        else \
          rm -f $(assertdir)/assert.h; \
          $(INSTALL_DATA) $(srcdir)/assert.h $(assertdir)/assert.h; \