[patch] Fixes C compiler check faiilure in compile stage

gnatbuild_eclass.patch (text/plain), 1.02 KB, created by Rafal Lalik on 2017-05-30 09:46:23 UTC

--- a/gnatbuild.eclass	2017-02-28 21:27:04.000000000 +0100
+++ b/gnatbuild.eclass	2017-05-30 11:42:19.346471147 +0200
@@ -468,6 +468,23 @@
 		fi
 
 		export CC="${GNATBOOT}/bin/gnatgcc"
+
+		# See bug #549546
+		# If user has march/mtune/mcpu set to value not suppirted by the requested gnatgcc version
+		# then checking for C compiler will fail. Therefore, replace with the native architecture.
+		einfo "Checking for CFLAGS compatibility"
+		if [[ $(echo "" | ${CC} -fsyntax-only ${CFLAGS} -xc - &> /dev/null) != 0 ]]; then
+			ewarn "CFLAGS=\"${CFLAGS}\" not supported, replacing with -march|-mtune|-mcpu=native"
+			replace-flags -march=* -march=native
+			replace-flags -mtune=* -mtune=native
+			replace-flags -mcpu=* -mcpu=native
+			ewarn "New CFLAGS=\"${CFLAGS}\""
+			ewarn "New CXXFLAGS=\"${CFLAGS}\""
+		else
+			export CFLAGS="${CFLAGS}"
+			export CXXFLAGS="${CFLAGS}"
+		fi
+
 		# CPATH is supposed to be applied for any language, thus
 		# superceding either of C/CPLUS/OBJC_INCLUDE_PATHs
 		export CPATH="${GNATLIB}/include"