Modules using CMOD can't be compiled.

Imported from http://bugzilla.roxen.com/bugzilla/show_bug.cgi?id=3924

Reported by Adam Montague, Sirius Hosting amontague@siriushosting.com

It appears as though any modules using CMOD (including one I am writing myself) cannot compile. If I switch my module to just using a .c source file it works fine, but if I use a .cmod file I get:

make PIKE_INCLUDES=-I/usr/local/include/pike PIKE_SRC_DIR=/usr/local/ include/pike BUILD_BASE=/usr/local/include/pike MODULE_BASE=/usr/local/ include/pike TMP_BINDIR=/usr/local/include/pike SRCDIR=. FULL_SRCDIR=/home/ adam/pike-fcgi/ TMP_MODULE_BASE=. PIKE_EXTERNAL_MODULE=pike_external_module CORE_AUTODOC_PATH=/usr/local/lib/doc/src/core_autodoc.xml SYSTEM_DOC_PATH=/ usr/local/lib/doc/ SYSTEM_MODULE_PATH=/usr/local/lib/pike/modules LOCAL_MODULE_PATH=$$HOME/lib/pike/modules RUNPIKE=pike depend make: don't know how to make /usr/local/include/pike/precompile.sh-stamp

creating an empty /usr/local/include/pike/precompile.sh-stamp allows the modules to compile.