app-emulation/wine: Check and warn about GCC-5.3 compile bug. #574044

Package-Manager: portage-2.2.26

4 files changed, 66 insertions, 0 deletions

diff --git a/app-emulation/wine/files/pr69140.c b/app-emulation/wine/files/pr69140.c
new file mode 100644
index 000000000000..2c345dd75bc5
--- /dev/null
+++ b/app-emulation/wine/files/pr69140.c
@@ -0,0 +1,24 @@
+/* { dg-do compile { target lp64 } } */
+/* { dg-options "-O2 -mincoming-stack-boundary=3" } */
+
+typedef struct {
+  unsigned int buf[4];
+  unsigned char in[64];
+} MD4_CTX;
+
+static void
+MD4Transform (unsigned int buf[4], const unsigned int in[16])
+{
+  unsigned int a, b, c, d;
+  (b) += ((((c)) & ((d))) | ((~(c)) & ((a)))) + (in[7]);
+  (a) += ((((b)) & ((c))) | ((~(b)) & ((d)))) + (in[8]);
+  (d) += ((((a)) & ((b))) | ((~(a)) & ((c)))) + (in[9]);
+  buf[3] += d;
+}
+
+void __attribute__((ms_abi))
+MD4Update (MD4_CTX *ctx, const unsigned char *buf)
+{
+  MD4Transform( ctx->buf, (unsigned int *)ctx->in);
+  MD4Transform( ctx->buf, (unsigned int *)ctx->in);
+}
diff --git a/app-emulation/wine/wine-1.9.4.ebuild b/app-emulation/wine/wine-1.9.4.ebuild
index 6388a5b6d1cb..e47fe62c7432 100644
--- a/app-emulation/wine/wine-1.9.4.ebuild
+++ b/app-emulation/wine/wine-1.9.4.ebuild
@@ -174,6 +174,20 @@ wine_build_environment_check() {
 			return 1
 		fi
 	fi
+	# bug #574044
+	if use abi_x86_64 && [[ $(gcc-major-version) = 5 && $(gcc-minor-version) = 3 ]]; then
+		einfo "Checking for gcc-5-3 stack realignment compiler bug ..."
+		$(tc-getCC) -O2 "${FILESDIR}"/pr69140.c -o "${T}"/pr69140 || die
+		# Run in subshell to prevent "Aborted" message
+		if ! ( "${T}"/69140 || false ) >/dev/null 2>&1; then
+			eerror "Wine cannot be built with this version of gcc-5.3"
+			eerror "due to compiler bugs; please re-emerge the latest gcc-5.3.x ebuild,"
+			eerror "or use gcc-config to select a different compiler version."
+			eerror "See https://bugs.gentoo.org/574044"
+			eerror
+			return 1
+		fi
+	fi
 
 	if use abi_x86_64 && [[ $(( $(gcc-major-version) * 100 + $(gcc-minor-version) )) -lt 404 ]]; then
 		eerror "You need gcc-4.4+ to build 64-bit wine"
diff --git a/app-emulation/wine/wine-1.9.5.ebuild b/app-emulation/wine/wine-1.9.5.ebuild
index 2c75d7b61190..5abc38030ec9 100644
--- a/app-emulation/wine/wine-1.9.5.ebuild
+++ b/app-emulation/wine/wine-1.9.5.ebuild
@@ -174,6 +174,20 @@ wine_build_environment_check() {
 			return 1
 		fi
 	fi
+	# bug #574044
+	if use abi_x86_64 && [[ $(gcc-major-version) = 5 && $(gcc-minor-version) = 3 ]]; then
+		einfo "Checking for gcc-5-3 stack realignment compiler bug ..."
+		$(tc-getCC) -O2 "${FILESDIR}"/pr69140.c -o "${T}"/pr69140 || die
+		# Run in subshell to prevent "Aborted" message
+		if ! ( "${T}"/69140 || false ) >/dev/null 2>&1; then
+			eerror "Wine cannot be built with this version of gcc-5.3"
+			eerror "due to compiler bugs; please re-emerge the latest gcc-5.3.x ebuild,"
+			eerror "or use gcc-config to select a different compiler version."
+			eerror "See https://bugs.gentoo.org/574044"
+			eerror
+			return 1
+		fi
+	fi
 
 	if use abi_x86_64 && [[ $(( $(gcc-major-version) * 100 + $(gcc-minor-version) )) -lt 404 ]]; then
 		eerror "You need gcc-4.4+ to build 64-bit wine"
diff --git a/app-emulation/wine/wine-9999.ebuild b/app-emulation/wine/wine-9999.ebuild
index 2c75d7b61190..5abc38030ec9 100644
--- a/app-emulation/wine/wine-9999.ebuild
+++ b/app-emulation/wine/wine-9999.ebuild
@@ -174,6 +174,20 @@ wine_build_environment_check() {
 			return 1
 		fi
 	fi
+	# bug #574044
+	if use abi_x86_64 && [[ $(gcc-major-version) = 5 && $(gcc-minor-version) = 3 ]]; then
+		einfo "Checking for gcc-5-3 stack realignment compiler bug ..."
+		$(tc-getCC) -O2 "${FILESDIR}"/pr69140.c -o "${T}"/pr69140 || die
+		# Run in subshell to prevent "Aborted" message
+		if ! ( "${T}"/69140 || false ) >/dev/null 2>&1; then
+			eerror "Wine cannot be built with this version of gcc-5.3"
+			eerror "due to compiler bugs; please re-emerge the latest gcc-5.3.x ebuild,"
+			eerror "or use gcc-config to select a different compiler version."
+			eerror "See https://bugs.gentoo.org/574044"
+			eerror
+			return 1
+		fi
+	fi
 
 	if use abi_x86_64 && [[ $(( $(gcc-major-version) * 100 + $(gcc-minor-version) )) -lt 404 ]]; then
 		eerror "You need gcc-4.4+ to build 64-bit wine"