[Buildroot] [PATCH 1/1] package/qemu: bump host gcc requirements: propagate to all reverse dependencies

[Adam Duskett]

qemu now requires gcc >= 7.5, however, as there is no BR2_HOST_GCC_AT_LEAST_7_5,
set the host gcc requirements to 8.

In addition:
  - Propagate the host gcc dependency to gobject-introspection as it was missing
    to begin with.
  - Propagate the host gcc dependency to nodejs
  - Add a missing comment in package/qemu/Config.in.host explaining the host gcc
    requirements if host gcc < 8.

Fixes:
http://autobuild.buildroot.org/results/32b7fee1f8cda2290fd4bd8ac9fe78bacb25b652

Signed-off-by: Adam Duskett <aduskett at gmail.com>
---
 package/gobject-introspection/Config.in | 3 ++-
 package/nodejs/Config.in                | 6 +++---
 package/qemu/Config.in.host             | 7 ++++++-
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/package/gobject-introspection/Config.in b/package/gobject-introspection/Config.in
index bacf44363c..15b6bc3bfa 100644
--- a/package/gobject-introspection/Config.in
+++ b/package/gobject-introspection/Config.in
@@ -13,6 +13,7 @@ config BR2_PACKAGE_GOBJECT_INTROSPECTION
 	# compile errors with locale.c. As such, require 4.9 until this
 	# can be verified.
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+	depends on BR2_HOST_GCC_AT_LEAST_8 # qemu
 	depends on BR2_TOOLCHAIN_USES_GLIBC
 	# gobject-introspection does not require python3 to run on the
 	# target; however, because the tools run in a qemu wrapper, a
@@ -41,7 +42,7 @@ comment "gobject-introspection needs python3"
 	depends on !BR2_PACKAGE_PYTHON3
 	depends on BR2_PACKAGE_GOBJECT_INTROSPECTION_ARCH_SUPPORTS
 
-comment "gobject-introspection needs a glibc toolchain, gcc >= 4.9"
+comment "gobject-introspection needs a glibc toolchain, gcc >= 4.9, host gcc >= 8"
 	depends on BR2_USE_MMU
 	depends on BR2_PACKAGE_GOBJECT_INTROSPECTION_ARCH_SUPPORTS
 	depends on !BR2_TOOLCHAIN_USES_GLIBC || \
diff --git a/package/nodejs/Config.in b/package/nodejs/Config.in
index 771f735e97..99c76bc3de 100644
--- a/package/nodejs/Config.in
+++ b/package/nodejs/Config.in
@@ -8,18 +8,18 @@ config BR2_PACKAGE_NODEJS_ARCH_SUPPORTS
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on BR2_PACKAGE_QEMU_ARCH_SUPPORTS_TARGET
 
-comment "nodejs needs a toolchain w/ C++, dynamic library, NPTL, gcc >= 7, wchar"
+comment "nodejs needs a toolchain w/ C++, dynamic library, NPTL, gcc >= 7, wchar, host gcc >= 8"
 	depends on BR2_USE_MMU
 	depends on BR2_PACKAGE_NODEJS_ARCH_SUPPORTS
 	depends on !BR2_INSTALL_LIBSTDCPP || BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HAS_THREADS_NPTL || \
-		!BR2_HOST_GCC_AT_LEAST_7 || !BR2_TOOLCHAIN_GCC_AT_LEAST_7 || !BR2_USE_WCHAR
+		!BR2_HOST_GCC_AT_LEAST_8 || !BR2_TOOLCHAIN_GCC_AT_LEAST_7 || !BR2_USE_WCHAR
 
 config BR2_PACKAGE_NODEJS
 	bool "nodejs"
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # libuv
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_PACKAGE_NODEJS_ARCH_SUPPORTS
-	depends on BR2_HOST_GCC_AT_LEAST_7
+	depends on BR2_HOST_GCC_AT_LEAST_8 # qemu
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7
 	depends on BR2_USE_WCHAR
 	# uses fork()
diff --git a/package/qemu/Config.in.host b/package/qemu/Config.in.host
index a5b38c081b..df5d921125 100644
--- a/package/qemu/Config.in.host
+++ b/package/qemu/Config.in.host
@@ -37,7 +37,7 @@ config BR2_PACKAGE_HOST_QEMU_USER_ARCH_SUPPORTS
 config BR2_PACKAGE_HOST_QEMU
 	bool "host qemu"
 	depends on BR2_PACKAGE_HOST_QEMU_SYSTEM_ARCH_SUPPORTS || BR2_PACKAGE_HOST_QEMU_USER_ARCH_SUPPORTS
-	depends on BR2_HOST_GCC_AT_LEAST_7
+	depends on BR2_HOST_GCC_AT_LEAST_8
 	select BR2_PACKAGE_HOST_QEMU_LINUX_USER_MODE \
 		if !BR2_PACKAGE_HOST_QEMU_SYSTEM_MODE && BR2_PACKAGE_HOST_QEMU_USER_ARCH_SUPPORTS
 	select BR2_PACKAGE_HOST_QEMU_SYSTEM_MODE \
@@ -50,6 +50,11 @@ config BR2_PACKAGE_HOST_QEMU
 
 	  http://www.qemu.org
 
+comment "host-qemu needs a host gcc >= 8"
+	depends on BR2_PACKAGE_HOST_QEMU_SYSTEM_ARCH_SUPPORTS || \
+		BR2_PACKAGE_HOST_QEMU_USER_ARCH_SUPPORT
+	depends on !BR2_HOST_GCC_AT_LEAST_8
+
 if BR2_PACKAGE_HOST_QEMU
 
 comment "Emulators selection"
-- 
2.32.0