In configure, the ccfamily variable is not defined

[vicuna]

Original bug ID: 7919
Reporter: Vincent L
Assigned to: @shindere
Status: assigned (set by @xavierleroy on 2019-03-09T09:37:11Z)
Resolution: open
Priority: normal
Severity: major
Platform: Darwin
OS: OSX
Version: 4.08.0+dev/beta1/beta2
Target version: 4.08.0+dev/beta1/beta2
Category: configure and build/install
Monitored by: @nojb

Bug description

The configure script relies on a ccfamily variable to determine what program to use as assembler (https://github.com/ocaml/ocaml/blob/trunk/configure.ac#L934).

It used to be defined there:

ocaml/configure

Line 409 in c5c0bdc

ccfamily=`$cc -E cckind.c | grep '^[a-z]' | tr -s ' ' '-'`

This makes compilation of OCaml 4.08.0+beta1 fail on OSX with clang and no gcc.

Example failing log: https://logs.nix.ci/?key=nixos/nixpkgs.55570&attempt_id=a52f6083-51ee-432c-bdfd-1a5704c58db1

[vicuna]

Comment author: Vincent L

This problem is still there with OCaml 4.08.0+beta2:

gcc -arch x86_64 -c -DSYS_macosx -I../runtime -DMODEL_default -o amd64.o amd64.S ||
{ echo "If your assembler produced syntax errors, it is probably";
echo "unhappy with the preprocessor. Check your assembler, or";
echo "try producing amd64.o by hand.";
exit 2; }
/nix/store/g9cis4hsnzcjkzfa77nif7kzq9bsqmpg-bash-4.4-p23/bin/bash: gcc: command not found
If your assembler produced syntax errors, it is probably
unhappy with the preprocessor. Check your assembler, or
try producing amd64.o by hand.
make[3]: *** [Makefile:370: amd64.o] Error 2

[shindere]

Closed by #2311

[vbgl]

Thank you.

[shindere]

You're welcome! You may wnat to double check this actually works!