On Thu, 25 Aug 2011, Rusty Nejdl wrote:
I was building a port that depended on threaded perl and used code like this:
.if exists(${PERL})
PERL_THREADS!= ${PERL} -V::usethreads
.if ${PERL_THREADS}!="'define';"
IGNORE= needs a threaded Perl, build with WITH_THREADS=yes flag and
try again
.endif
.else
IGNORE= needs an existing installation of Perl built with
WITH_THREADS=yes
.endif
Perhaps you could use something similar?
Some searching found security/clamav/Makefile:
.if (defined(WITH_LLVM) || defined(WITH_LLVM_PORTS)) && defined(WITH_TESTS)
pre-configure:
@if ! ${PYTHON_CMD} -c "import thread" >/dev/null 2>&1; then \
${ECHO_MSG} ""; \
${ECHO_MSG}
"=========================================================================
${ECHO_MSG} "= Unit tests REQUIRES python built with thread
support, and yours is not.
${ECHO_MSG} "= It will not be called during this build
${ECHO_MSG}
"=========================================================================
${ECHO_MSG} ""; \
${TOUCH} ${PY_NO_THREAD}; \
fi
.endif
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