Fix up timestamps after patching

... so that autotools-based packages do not re-run autoconf/autoheader/automake.

Signed-off-by: Alexey Neyman <stilor@att.net>

scripts/build/libc/glibc.sh

@@ -26,7 +26,6 @@ do_libc_extract() {
         CT_DoExecLog ALL ln -sf "${CT_GLIBC_PORTS_SRC_DIR}/${CT_GLIBC_PORTS_BASENAME}" \
                 "${CT_GLIBC_SRC_DIR}/${CT_GLIBC_BASENAME}/ports"
     fi
-    # TBD make the configure timestamp fix in all patched packages (e.g. part of CT_ExtractPatch)
 }
 
 # Build and install headers and start files

scripts/functions

@@ -2165,6 +2165,20 @@ CT_DoExtractPatch()
                 CT_DoExecLog ALL "${CT_CONFIG_SHELL}" -c "${devel_bootstrap}"
             fi
 
+            # Fix up the timestamps on the file we may be patching: otherwise, we may
+            # have a circular dependency. For example, we need make to build autoconf
+            # and automake companion tools, but we need autoconf and automake to regenerate
+            # aclocal.m4 or config.h.in after the patch touches configure.ac. Instead,
+            # assume the patch fixes all the files it needs.
+            find . -type f -name "aclocal.m4" \
+                    -exec touch {} \; -exec echo touch {} \; | CT_DoLog ALL
+            find . -type f -name "config.h.in" \
+                    -exec touch {} \; -exec echo touch {} \; | CT_DoLog ALL
+            find . -type f -name "Makefile.in" \
+                    -exec touch {} \; -exec echo touch {} \; | CT_DoLog ALL
+            find . -type f -name "configure" \
+                    -exec touch {} \; -exec echo touch {} \; | CT_DoLog ALL
+
             if [ -n "${patchfunc}" ]; then
                 ${patchfunc}
             fi