gcc: fix darwin dispatch/object.h header issue (#1518)

Fixes #1203. Apple ships headers in Yosemite (and possibly earlier) that
are gcc-incompatible, but compile fine with clang. The fix is to copy
the offending system header from /usr/include/${REST_OF_HEADER_PATH} to
${GCC_PREFIX}/include/${REST_OF_HEADER_PATH} and replace the non-gcc-
compatible features with gcc-compatible equivalents.

See https://github.com/hashdist/hashstack/pull/771/files for
inspiration, and
http://hamelot.io/programming/osx-gcc-dispatch_block_t-has-not-been-declared-invalid-typedef/
for a description of the header issue.
This commit is contained in:
Geoffrey Oxberry 2016-10-02 18:54:43 -07:00 committed by Todd Gamblin
parent 16f99bd0b2
commit df79ba0dcf

View File

@ -3,6 +3,7 @@
from contextlib import closing
from glob import glob
import sys
from os.path import isfile
class Gcc(Package):
@ -68,6 +69,19 @@ def install(self, spec, prefix):
if spec.satisfies("@4.7.1:") and sys.platform != 'darwin':
enabled_languages.add('go')
# Fix a standard header file for OS X Yosemite that
# is GCC incompatible by replacing non-GCC compliant macros
if 'yosemite' in spec.architecture:
if isfile(r'/usr/include/dispatch/object.h'):
new_dispatch_dir = join_path(prefix, 'include', 'dispatch')
mkdirp(new_dispatch_dir)
cp = which('cp')
new_header = join_path(new_dispatch_dir, 'object.h')
cp(r'/usr/include/dispatch/object.h', new_header)
filter_file(r'typedef void \(\^dispatch_block_t\)\(void\)',
'typedef void* dispatch_block_t',
new_header)
# Generic options to compile GCC
options = ["--prefix=%s" % prefix, "--libdir=%s/lib64" % prefix,
"--disable-multilib",