Symbol's Value as Variable is Void: zmq-REQ

[harrycheon]

I'm getting this error as #22. None of the solutions suggested worked for me.

I've also tried the suggestion in https://github.com/nnicandro/emacs-zmq/issues/33, but to no avail.

I am on macOS Ventura with

gcc 12.1.0 emacs 28.2

make EMACS=/opt/homebrew/Cellar/emacs-plus@28/28.2/Emacs.app/Contents/MacOS/Emacs
/Applications/Xcode.app/Contents/Developer/usr/bin/make configure
cd src && ./configure CPPFLAGS="" \
        --host= --prefix=/Users/harrycheon/.crafted-emacs/elpa/zmq-0.10.10 \
        --enable-shared=emacs-zmq --enable-static=zeromq \
        --without-docs --enable-drafts=yes --enable-libunwind=no \
        --disable-curve-keygen --disable-perf --disable-eventfd
checking for a BSD-compatible install... /opt/homebrew/bin/ginstall -c
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /opt/homebrew/bin/gmkdir -p
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for gcc... gcc
checking whether the C compiler works... no
configure: error: in `/Users/harrycheon/.crafted-emacs/elpa/zmq-0.10.10/src':
configure: error: C compiler cannot create executables
See `config.log' for more details
make[1]: *** [configure] Error 77
make: *** [src/Makefile] Error 2

make test returns

emacs -nw -Q -batch -L . -l ert -l zmq-tests.el \
        --eval "(ert-run-tests-batch-and-exit)"
Checking for compatible module binary to download
ZMQ module not found. Building it

Compilation exited abnormally with code 2
Something went wrong when compiling the ZMQ module!
Debugger entered--Lisp error: (void-function zmq-version)
  (zmq-version)
  (message "ZMQ Version: %s" (zmq-version))
  eval-buffer(#<buffer  *load*> nil "/Users/harrycheon/.crafted-emacs/elpa/zmq-0.10.10/..." nil t)  ; Reading at buffer position 1053
  load-with-code-conversion("/Users/harrycheon/.crafted-emacs/elpa/zmq-0.10.10/..." "/Users/harrycheon/.crafted-emacs/elpa/zmq-0.10.10/..." nil t)
  load("/Users/harrycheon/.crafted-emacs/elpa/zmq-0.10.10/..." nil t)
  command-line-1(("-L" "." "-l" "ert" "-l" "zmq-tests.el" "--eval" "(ert-run-tests-batch-and-exit)"))
  command-line()
  normal-top-level()

make: *** [test] Error 255

[nnicandro]

It looks like the C compiler being used is gcc. Typically on MacOSX it is clang. Maybe try make EMACS=... CC=clang?

[memeplex]

This also happened to me in macOS Sonoma. But it's because aclocal is not installed, not because of the compiler. You need to install automake with brew.

[neolee]

Happens to me on macOS Sonoma, Emacs 29.4. After recent update of emacs-jupyter error message occurs and cannot render PDF from org file:

defconst: Symbol’s value as variable is void: zmq-REQ