>>> Unpacking source...
>>> Unpacking cweb-3.64.tar.gz to /var/tmp/portage/dev-util/cweb-3.64/work
>>> Source unpacked in /var/tmp/portage/dev-util/cweb-3.64/work
>>> Compiling source in /var/tmp/portage/dev-util/cweb-3.64/work ...
 * /etc/portage/bashrc QA notice: 'make' called by src_compile
make -j14 all 'CFLAGS=-O2 -pipe' LINKFLAGS=-Wl,-O1 
cc -O2 -pipe   -c -o ctangle.o ctangle.c
cc -O2 -pipe -DCWEBINPUTS=\"/usr/local/lib/cweb\" -c common.c
./ctangle cweave 
make: ./ctangle: Command not found
make: *** [cweave.c] Error 127
make: *** Waiting for unfinished jobs....
common.w:1412: warning: conflicting types for built-in function 'strlen'
ctangle.w:78: warning: conflicting types for built-in function 'strlen'
common.w: In function 'print_section_name':
common.w:774: warning: ignoring return value of 'fwrite', declared with attribute warn_unused_result
common.w:776: warning: ignoring return value of 'fwrite', declared with attribute warn_unused_result
common.w:780: warning: ignoring return value of 'fwrite', declared with attribute warn_unused_result
common.w: In function 'print_prefix_name':
common.w:811: warning: ignoring return value of 'fwrite', declared with attribute warn_unused_result
common.w:812: warning: ignoring return value of 'fwrite', declared with attribute warn_unused_result
common.w: In function 'fatal':
common.w:1183: warning: format not a string literal and no format arguments
ctangle.w: In function 'get_next':
ctangle.w:1040: warning: ignoring return value of 'fwrite', declared with attribute warn_unused_result
ctangle.w:1137: warning: ignoring return value of 'fwrite', declared with attribute warn_unused_result
 * 
 * ERROR: dev-util/cweb-3.64 failed.
 * Call stack:
 *               ebuild.sh, line   49:  Called src_compile
 *             environment, line  313:  Called die
 * The specific snippet of code:
 *       make all CFLAGS="${CFLAGS}" LINKFLAGS="${LDFLAGS}" || die
 *  The die message:
 *   (no error message)
 * 
 * If you need support, post the topmost build error, and the call stack if relevant.
 * A complete build log is located at '/var/log/portage/dev-util/cweb-3.64:20090803-144115.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-util/cweb-3.64/temp/environment'.
 *