https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79885
Bug ID: 79885
Summary: fix-includes does not honor the value passed to
--with-build-sysroot=, looks for /usr/include instead
of looking within the SDK
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: jeremyhu at macports dot org
Target Milestone: ---
If gcc-6.3.0 is configured with
--with-build-sysroot=/Applications/Xcode.app/.../MacOSXXX.sdk, the build will
fail unless /usr/include is present on the system as well. The build fails
during fix-includes with the message:
The directory that should contain system headers does not exist:
/usr/include
I suspect this is because SYSTEM_HEADER_DIR is set to /usr/include rather than
$SDKROOT/usr/include.
Perhaps I'm misunderstanding the intention of --with-build-sysroot, but
essentially, I want to build gcc against a given macOS SDK, and the system does
not contain system headers installed at /. I'm testing a workaround of
defining SYSTEM_HEADER_DIR explicitly, but it would be best if this issue were
resolved properly upstream.
