profiles/use.desc: add new USE=headers-only global flag

It's meaning will be the same as CROSSCOMPILE_OPTS=headers-only.
The difference is it will not be hidden.

Bug: https://bugs.gentoo.org/642712
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

diff --git a/profiles/use.desc b/profiles/use.desc
index 44beb587629d7a6a719e21916da74dbebb1b749d..042b3e9157907f9512be17f611176450ff85cb1c 100644 (file)
--- a/profiles/use.desc
+++ b/profiles/use.desc
@@ -135,6 +135,7 @@ handbook - Enable handbooks generation for packages by KDE
 hardened - Activate default security enhancements for toolchain (gcc, glibc, binutils)
 hddtemp - Enable monitoring of hdd temperature (app-admin/hddtemp)
 hdf5 - Add support for the Hierarchical Data Format v5
+headers-only - Install only C headers instead of whole package. Mainly used by sys-devel/crossdev for toolchain bootstrap.
 hscolour - Include coloured haskell sources to generated documentation (dev-haskell/hscolour)
 ibm - Add support for IBM ppc64 specific systems
 iconv - Enable support for the iconv character set conversion library