sys-libs/uclibc-ng: Migrate CROSSCOMPILE_OPTS=headers-only -> USE=headers-only

CROSSCOMPILE_OPTS is a USE_EXPAND of a single item: headers-only.
Convert it to a global USE flag instead.

Mechanical ebuild rename done as:
    $ sed -e 's@crosscompile_opts_headers-only@headers-only@g' \
        -i $(git grep -l headers-only)

'headers-only' flag is used by crossdev to bootstrap stage1 compiler
before libc is available.

crossdev switched to USE=headers-only in =sys-devel/crossdev-20171230.

Bug: https://bugs.gentoo.org/642712
Package-Manager: Portage-2.3.19, Repoman-2.3.6

4 files changed, 12 insertions, 12 deletions

diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.25.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.25.ebuild
index 89d2e3727161..5245bd5b23c8 100644
--- a/sys-libs/uclibc-ng/uclibc-ng-1.0.25.ebuild
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.25.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2017 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI="6"
@@ -23,7 +23,7 @@ fi
 
 LICENSE="LGPL-2"
 SLOT="0"
-IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat headers-only"
 RESTRICT="strip"
 
 # 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
@@ -59,7 +59,7 @@ alt_build_kprefix() {
 }
 
 just_headers() {
-	use crosscompile_opts_headers-only && is_crosscompile
+	use headers-only && is_crosscompile
 }
 
 uclibc_endian() {
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.26.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.26.ebuild
index 89d2e3727161..5245bd5b23c8 100644
--- a/sys-libs/uclibc-ng/uclibc-ng-1.0.26.ebuild
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.26.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2017 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI="6"
@@ -23,7 +23,7 @@ fi
 
 LICENSE="LGPL-2"
 SLOT="0"
-IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat headers-only"
 RESTRICT="strip"
 
 # 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
@@ -59,7 +59,7 @@ alt_build_kprefix() {
 }
 
 just_headers() {
-	use crosscompile_opts_headers-only && is_crosscompile
+	use headers-only && is_crosscompile
 }
 
 uclibc_endian() {
diff --git a/sys-libs/uclibc-ng/uclibc-ng-1.0.27.ebuild b/sys-libs/uclibc-ng/uclibc-ng-1.0.27.ebuild
index 3cd7177086ee..9c2e972dc4c0 100644
--- a/sys-libs/uclibc-ng/uclibc-ng-1.0.27.ebuild
+++ b/sys-libs/uclibc-ng/uclibc-ng-1.0.27.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2017 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI="6"
@@ -23,7 +23,7 @@ fi
 
 LICENSE="LGPL-2"
 SLOT="0"
-IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat headers-only"
 RESTRICT="strip"
 
 # 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
@@ -59,7 +59,7 @@ alt_build_kprefix() {
 }
 
 just_headers() {
-	use crosscompile_opts_headers-only && is_crosscompile
+	use headers-only && is_crosscompile
 }
 
 uclibc_endian() {
diff --git a/sys-libs/uclibc-ng/uclibc-ng-9999.ebuild b/sys-libs/uclibc-ng/uclibc-ng-9999.ebuild
index f6ad51297978..9c2e972dc4c0 100644
--- a/sys-libs/uclibc-ng/uclibc-ng-9999.ebuild
+++ b/sys-libs/uclibc-ng/uclibc-ng-9999.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2016 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI="6"
@@ -23,7 +23,7 @@ fi
 
 LICENSE="LGPL-2"
 SLOT="0"
-IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only"
+IUSE="debug hardened iconv ipv6 rpc symlink-compat headers-only"
 RESTRICT="strip"
 
 # 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
@@ -59,7 +59,7 @@ alt_build_kprefix() {
 }
 
 just_headers() {
-	use crosscompile_opts_headers-only && is_crosscompile
+	use headers-only && is_crosscompile
 }
 
 uclibc_endian() {