[gentoo-commits] repo/gentoo:master commit in: app-emulation/wine-staging/

[Ionen Wolkens]

commit:     22d035036df4ab21d5f724877c3709f4eff59b5b
Author:     Ionen Wolkens <ionen <AT> gentoo <DOT> org>
AuthorDate: Wed May 18 02:41:50 2022 +0000
Commit:     Ionen Wolkens <ionen <AT> gentoo <DOT> org>
CommitDate: Fri May 20 20:01:46 2022 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=22d03503

app-emulation/wine-staging: support building with mingw64-toolchain

This allows USE=mingw to be usable without manually using crossdev
first to ease usage for users and automated testing.

Old behavior using crossdev still available with USE=crossdev-mingw,
albeit new one should offer better stability given mingw64-toolchain
is intended/tested especially to build wine+dxvk+vkd3d-proton.

Given wine is pushing PE conversions and some things work better with
PE files (e.g. Blizzard games, Proton also uses --with-mingw), it may
be useful for the prospect of making this a default at some point.

Note that mingw64-toolchain's ${MULTILIB_USEDEP} does belong in BDEPEND
(unless <EAPI-7), as it'll use cross libraries located in BROOT.

Signed-off-by: Ionen Wolkens <ionen <AT> gentoo.org>

 app-emulation/wine-staging/metadata.xml            |  4 ++
 .../wine-staging/wine-staging-7.5-r1.ebuild        | 46 +++++++++-------------
 .../wine-staging/wine-staging-7.6-r1.ebuild        | 46 +++++++++-------------
 app-emulation/wine-staging/wine-staging-7.7.ebuild | 46 +++++++++-------------
 app-emulation/wine-staging/wine-staging-7.8.ebuild | 46 +++++++++-------------
 .../wine-staging/wine-staging-9999.ebuild          | 46 +++++++++-------------
 6 files changed, 94 insertions(+), 140 deletions(-)

diff --git a/app-emulation/wine-staging/metadata.xml b/app-emulation/wine-staging/metadata.xml
index ee411faa12da..8811667ddc0b 100644
--- a/app-emulation/wine-staging/metadata.xml
+++ b/app-emulation/wine-staging/metadata.xml
@@ -18,6 +18,10 @@ This variant of the Wine packaging includes the Wine-Staging patchset.
 	</longdescription>
 	<use>
 		<flag name="capi">Enable ISDN support via CAPI</flag>
+		<flag name="crossdev-mingw">
+			Use <pkg>sys-devel/crossdev</pkg> for the toolchain rather than
+			<pkg>dev-util/mingw64-toolchain</pkg> (requires manual setting up)
+		</flag>
 		<flag name="custom-cflags">Bypass strip-flags; use at your own peril</flag>
 		<flag name="dos">Pull in <pkg>games-emulation/dosbox</pkg> to run DOS applications</flag>
 		<flag name="gecko">Add support for the Gecko engine when using iexplore</flag>

diff --git a/app-emulation/wine-staging/wine-staging-7.5-r1.ebuild b/app-emulation/wine-staging/wine-staging-7.5-r1.ebuild
index 178ae2fa6afe..5a8aa3f539f4 100644
--- a/app-emulation/wine-staging/wine-staging-7.5-r1.ebuild
+++ b/app-emulation/wine-staging/wine-staging-7.5-r1.ebuild
@@ -48,9 +48,10 @@ fi
 
 LICENSE="LGPL-2.1"
 SLOT="${MY_PV}"
-IUSE="+abi_x86_32 +abi_x86_64 +alsa capi cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vkd3d vulkan +X +xcomposite xinerama"
+IUSE="+abi_x86_32 +abi_x86_64 +alsa capi crossdev-mingw cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vkd3d vulkan +X +xcomposite xinerama"
 REQUIRED_USE="|| ( abi_x86_32 abi_x86_64 )
 	X? ( truetype )
+	crossdev-mingw? ( mingw )
 	elibc_glibc? ( threads )
 	osmesa? ( opengl )
 	pipelight? ( staging )
@@ -63,7 +64,8 @@ RESTRICT="test"
 
 BDEPEND="sys-devel/flex
 	virtual/yacc
-	virtual/pkgconfig"
+	virtual/pkgconfig
+	!crossdev-mingw? ( dev-util/mingw64-toolchain[${MULTILIB_USEDEP}] )"
 
 COMMON_DEPEND="
 	X? (
@@ -217,32 +219,18 @@ pkg_pretend() {
 			fi
 		fi
 
-		if use mingw && use abi_x86_32 && ! has_version "cross-i686-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-i686-w64-mingw32' compiler and its runtime for 32-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target i686-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
-		fi
-
-		if use mingw && use abi_x86_64 && ! has_version "cross-x86_64-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-x86_64-w64-mingw32' compiler and its runtime for 64-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target x86_64-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
+		if use crossdev-mingw && [[ ! -v MINGW_BYPASS ]]; then
+			local mingw=-w64-mingw32
+			for mingw in $(usev abi_x86_64 x86_64${mingw}) $(usev abi_x86_32 i686${mingw}); do
+				type -P ${mingw}-gcc && continue
+				eerror "With USE=crossdev-mingw, you must prepare the MinGW toolchain"
+				eerror "yourself by installing sys-devel/crossdev then running:"
+				eerror
+				eerror "    crossdev --target ${mingw}"
+				eerror
+				eerror "For more information, please see: https://wiki.gentoo.org/wiki/Mingw"
+				die "USE=crossdev-mingw is enabled, but ${mingw}-gcc was not found"
+			done
 		fi
 	fi
 }
@@ -369,6 +357,8 @@ src_configure() {
 	export LDCONFIG=/bin/true
 	use custom-cflags || strip-flags
 	if use mingw; then
+		use crossdev-mingw || PATH=${BROOT}/usr/lib/mingw64-toolchain/bin:${PATH}
+
 		export CROSSCFLAGS="${CFLAGS}"
 	fi
 

diff --git a/app-emulation/wine-staging/wine-staging-7.6-r1.ebuild b/app-emulation/wine-staging/wine-staging-7.6-r1.ebuild
index 2985fe9ef68e..c814bc62907c 100644
--- a/app-emulation/wine-staging/wine-staging-7.6-r1.ebuild
+++ b/app-emulation/wine-staging/wine-staging-7.6-r1.ebuild
@@ -48,9 +48,10 @@ fi
 
 LICENSE="LGPL-2.1"
 SLOT="${MY_PV}"
-IUSE="+abi_x86_32 +abi_x86_64 +alsa capi cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vkd3d vulkan +X +xcomposite xinerama"
+IUSE="+abi_x86_32 +abi_x86_64 +alsa capi crossdev-mingw cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vkd3d vulkan +X +xcomposite xinerama"
 REQUIRED_USE="|| ( abi_x86_32 abi_x86_64 )
 	X? ( truetype )
+	crossdev-mingw? ( mingw )
 	elibc_glibc? ( threads )
 	osmesa? ( opengl )
 	pipelight? ( staging )
@@ -63,7 +64,8 @@ RESTRICT="test"
 
 BDEPEND="sys-devel/flex
 	virtual/yacc
-	virtual/pkgconfig"
+	virtual/pkgconfig
+	!crossdev-mingw? ( dev-util/mingw64-toolchain[${MULTILIB_USEDEP}] )"
 
 COMMON_DEPEND="
 	X? (
@@ -217,32 +219,18 @@ pkg_pretend() {
 			fi
 		fi
 
-		if use mingw && use abi_x86_32 && ! has_version "cross-i686-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-i686-w64-mingw32' compiler and its runtime for 32-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target i686-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
-		fi
-
-		if use mingw && use abi_x86_64 && ! has_version "cross-x86_64-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-x86_64-w64-mingw32' compiler and its runtime for 64-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target x86_64-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
+		if use crossdev-mingw && [[ ! -v MINGW_BYPASS ]]; then
+			local mingw=-w64-mingw32
+			for mingw in $(usev abi_x86_64 x86_64${mingw}) $(usev abi_x86_32 i686${mingw}); do
+				type -P ${mingw}-gcc && continue
+				eerror "With USE=crossdev-mingw, you must prepare the MinGW toolchain"
+				eerror "yourself by installing sys-devel/crossdev then running:"
+				eerror
+				eerror "    crossdev --target ${mingw}"
+				eerror
+				eerror "For more information, please see: https://wiki.gentoo.org/wiki/Mingw"
+				die "USE=crossdev-mingw is enabled, but ${mingw}-gcc was not found"
+			done
 		fi
 	fi
 }
@@ -369,6 +357,8 @@ src_configure() {
 	export LDCONFIG=/bin/true
 	use custom-cflags || strip-flags
 	if use mingw; then
+		use crossdev-mingw || PATH=${BROOT}/usr/lib/mingw64-toolchain/bin:${PATH}
+
 		export CROSSCFLAGS="${CFLAGS}"
 	fi
 

diff --git a/app-emulation/wine-staging/wine-staging-7.7.ebuild b/app-emulation/wine-staging/wine-staging-7.7.ebuild
index 2985fe9ef68e..c814bc62907c 100644
--- a/app-emulation/wine-staging/wine-staging-7.7.ebuild
+++ b/app-emulation/wine-staging/wine-staging-7.7.ebuild
@@ -48,9 +48,10 @@ fi
 
 LICENSE="LGPL-2.1"
 SLOT="${MY_PV}"
-IUSE="+abi_x86_32 +abi_x86_64 +alsa capi cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vkd3d vulkan +X +xcomposite xinerama"
+IUSE="+abi_x86_32 +abi_x86_64 +alsa capi crossdev-mingw cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vkd3d vulkan +X +xcomposite xinerama"
 REQUIRED_USE="|| ( abi_x86_32 abi_x86_64 )
 	X? ( truetype )
+	crossdev-mingw? ( mingw )
 	elibc_glibc? ( threads )
 	osmesa? ( opengl )
 	pipelight? ( staging )
@@ -63,7 +64,8 @@ RESTRICT="test"
 
 BDEPEND="sys-devel/flex
 	virtual/yacc
-	virtual/pkgconfig"
+	virtual/pkgconfig
+	!crossdev-mingw? ( dev-util/mingw64-toolchain[${MULTILIB_USEDEP}] )"
 
 COMMON_DEPEND="
 	X? (
@@ -217,32 +219,18 @@ pkg_pretend() {
 			fi
 		fi
 
-		if use mingw && use abi_x86_32 && ! has_version "cross-i686-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-i686-w64-mingw32' compiler and its runtime for 32-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target i686-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
-		fi
-
-		if use mingw && use abi_x86_64 && ! has_version "cross-x86_64-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-x86_64-w64-mingw32' compiler and its runtime for 64-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target x86_64-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
+		if use crossdev-mingw && [[ ! -v MINGW_BYPASS ]]; then
+			local mingw=-w64-mingw32
+			for mingw in $(usev abi_x86_64 x86_64${mingw}) $(usev abi_x86_32 i686${mingw}); do
+				type -P ${mingw}-gcc && continue
+				eerror "With USE=crossdev-mingw, you must prepare the MinGW toolchain"
+				eerror "yourself by installing sys-devel/crossdev then running:"
+				eerror
+				eerror "    crossdev --target ${mingw}"
+				eerror
+				eerror "For more information, please see: https://wiki.gentoo.org/wiki/Mingw"
+				die "USE=crossdev-mingw is enabled, but ${mingw}-gcc was not found"
+			done
 		fi
 	fi
 }
@@ -369,6 +357,8 @@ src_configure() {
 	export LDCONFIG=/bin/true
 	use custom-cflags || strip-flags
 	if use mingw; then
+		use crossdev-mingw || PATH=${BROOT}/usr/lib/mingw64-toolchain/bin:${PATH}
+
 		export CROSSCFLAGS="${CFLAGS}"
 	fi
 

diff --git a/app-emulation/wine-staging/wine-staging-7.8.ebuild b/app-emulation/wine-staging/wine-staging-7.8.ebuild
index c612384db05e..a8f7b0e6ad1c 100644
--- a/app-emulation/wine-staging/wine-staging-7.8.ebuild
+++ b/app-emulation/wine-staging/wine-staging-7.8.ebuild
@@ -48,9 +48,10 @@ fi
 
 LICENSE="LGPL-2.1"
 SLOT="${MY_PV}"
-IUSE="+abi_x86_32 +abi_x86_64 +alsa capi cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vulkan +X +xcomposite xinerama"
+IUSE="+abi_x86_32 +abi_x86_64 +alsa capi crossdev-mingw cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vulkan +X +xcomposite xinerama"
 REQUIRED_USE="|| ( abi_x86_32 abi_x86_64 )
 	X? ( truetype )
+	crossdev-mingw? ( mingw )
 	elibc_glibc? ( threads )
 	osmesa? ( opengl )
 	pipelight? ( staging )
@@ -62,7 +63,8 @@ RESTRICT="test"
 
 BDEPEND="sys-devel/flex
 	virtual/yacc
-	virtual/pkgconfig"
+	virtual/pkgconfig
+	!crossdev-mingw? ( dev-util/mingw64-toolchain[${MULTILIB_USEDEP}] )"
 
 COMMON_DEPEND="
 	X? (
@@ -215,32 +217,18 @@ pkg_pretend() {
 			fi
 		fi
 
-		if use mingw && use abi_x86_32 && ! has_version "cross-i686-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-i686-w64-mingw32' compiler and its runtime for 32-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target i686-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
-		fi
-
-		if use mingw && use abi_x86_64 && ! has_version "cross-x86_64-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-x86_64-w64-mingw32' compiler and its runtime for 64-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target x86_64-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
+		if use crossdev-mingw && [[ ! -v MINGW_BYPASS ]]; then
+			local mingw=-w64-mingw32
+			for mingw in $(usev abi_x86_64 x86_64${mingw}) $(usev abi_x86_32 i686${mingw}); do
+				type -P ${mingw}-gcc && continue
+				eerror "With USE=crossdev-mingw, you must prepare the MinGW toolchain"
+				eerror "yourself by installing sys-devel/crossdev then running:"
+				eerror
+				eerror "    crossdev --target ${mingw}"
+				eerror
+				eerror "For more information, please see: https://wiki.gentoo.org/wiki/Mingw"
+				die "USE=crossdev-mingw is enabled, but ${mingw}-gcc was not found"
+			done
 		fi
 	fi
 }
@@ -367,6 +355,8 @@ src_configure() {
 	export LDCONFIG=/bin/true
 	use custom-cflags || strip-flags
 	if use mingw; then
+		use crossdev-mingw || PATH=${BROOT}/usr/lib/mingw64-toolchain/bin:${PATH}
+
 		export CROSSCFLAGS="${CFLAGS}"
 	fi
 

diff --git a/app-emulation/wine-staging/wine-staging-9999.ebuild b/app-emulation/wine-staging/wine-staging-9999.ebuild
index c612384db05e..a8f7b0e6ad1c 100644
--- a/app-emulation/wine-staging/wine-staging-9999.ebuild
+++ b/app-emulation/wine-staging/wine-staging-9999.ebuild
@@ -48,9 +48,10 @@ fi
 
 LICENSE="LGPL-2.1"
 SLOT="${MY_PV}"
-IUSE="+abi_x86_32 +abi_x86_64 +alsa capi cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vulkan +X +xcomposite xinerama"
+IUSE="+abi_x86_32 +abi_x86_64 +alsa capi crossdev-mingw cups custom-cflags dos +fontconfig +gecko gphoto2 gssapi gstreamer kerberos ldap mingw +mono mp3 netapi nls odbc openal opencl +opengl osmesa oss +perl pcap pipelight pulseaudio +realtime +run-exes samba scanner sdl selinux +ssl staging test +threads +truetype udev +udisks +unwind usb v4l vulkan +X +xcomposite xinerama"
 REQUIRED_USE="|| ( abi_x86_32 abi_x86_64 )
 	X? ( truetype )
+	crossdev-mingw? ( mingw )
 	elibc_glibc? ( threads )
 	osmesa? ( opengl )
 	pipelight? ( staging )
@@ -62,7 +63,8 @@ RESTRICT="test"
 
 BDEPEND="sys-devel/flex
 	virtual/yacc
-	virtual/pkgconfig"
+	virtual/pkgconfig
+	!crossdev-mingw? ( dev-util/mingw64-toolchain[${MULTILIB_USEDEP}] )"
 
 COMMON_DEPEND="
 	X? (
@@ -215,32 +217,18 @@ pkg_pretend() {
 			fi
 		fi
 
-		if use mingw && use abi_x86_32 && ! has_version "cross-i686-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-i686-w64-mingw32' compiler and its runtime for 32-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target i686-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
-		fi
-
-		if use mingw && use abi_x86_64 && ! has_version "cross-x86_64-w64-mingw32/gcc"; then
-			eerror
-			eerror "USE=\"mingw\" is currently experimental, and requires the"
-			eerror "'cross-x86_64-w64-mingw32' compiler and its runtime for 64-bit builds."
-			eerror
-			eerror "These can be installed by using 'sys-devel/crossdev':"
-			eerror
-			eerror "crossdev --target x86_64-w64-mingw32"
-			eerror
-			eerror "For more information on setting up MinGW, see: https://wiki.gentoo.org/wiki/Mingw"
-			eerror
-			die "MinGW build was enabled, but no compiler to support it was found."
+		if use crossdev-mingw && [[ ! -v MINGW_BYPASS ]]; then
+			local mingw=-w64-mingw32
+			for mingw in $(usev abi_x86_64 x86_64${mingw}) $(usev abi_x86_32 i686${mingw}); do
+				type -P ${mingw}-gcc && continue
+				eerror "With USE=crossdev-mingw, you must prepare the MinGW toolchain"
+				eerror "yourself by installing sys-devel/crossdev then running:"
+				eerror
+				eerror "    crossdev --target ${mingw}"
+				eerror
+				eerror "For more information, please see: https://wiki.gentoo.org/wiki/Mingw"
+				die "USE=crossdev-mingw is enabled, but ${mingw}-gcc was not found"
+			done
 		fi
 	fi
 }
@@ -367,6 +355,8 @@ src_configure() {
 	export LDCONFIG=/bin/true
 	use custom-cflags || strip-flags
 	if use mingw; then
+		use crossdev-mingw || PATH=${BROOT}/usr/lib/mingw64-toolchain/bin:${PATH}
+
 		export CROSSCFLAGS="${CFLAGS}"
 	fi