[Buildroot] [PATCH 2/8] support/dependencies: check that host have gcc plugin headers

[Kamel Bouhara]

Some packages requires host gcc headers to build gcc plugins. This
checks they are indeed installed.

Signed-off-by: Kamel Bouhara <kamel.bouhara at bootlin.com>
---
 support/dependencies/dependencies.sh | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/support/dependencies/dependencies.sh b/support/dependencies/dependencies.sh
index 98469bd70c..fcf52818f1 100755
--- a/support/dependencies/dependencies.sh
+++ b/support/dependencies/dependencies.sh
@@ -240,6 +240,16 @@ if grep -q ^BR2_HOSTARCH_NEEDS_IA32_COMPILER=y $BR2_CONFIG ; then
 	fi
 fi
 
+if grep ^BR2_NEEDS_HOST_GCC_PLUGIN_SUPPORT=y $BR2_CONFIG ; then
+	if ! echo "#include <gcc-plugin.h>" | g++ -I$(g++ -print-file-name=plugin)/include -x c++ -c - -o /dev/null ; then
+		echo
+		echo "Your Buildroot configuration needs a compiler capable of building gcc plugins."
+		echo "If you're running a Debian/Ubuntu distribution, install gcc-X-plugin-dev package."
+		echo "For other distributions, refer to their documentation."
+		exit 1 ;
+	fi
+fi
+
 # Check that the Perl installation is complete enough for Buildroot.
 required_perl_modules="Data::Dumper" # Needed to build host-autoconf
 required_perl_modules="$required_perl_modules ExtUtils::MakeMaker" # Used by host-libxml-parser-perl
-- 
2.25.0