From 4b7953db48ed736ed913fd17a038c8474ce2198d Mon Sep 17 00:00:00 2001
From: Mark Wielaard <mjw@redhat.com>
Date: Tue, 9 Jun 2015 00:28:13 +0200
Subject: configure: Add check for gcc -Wstack-usage.

Some older gcc versions don't support -Wstack-usage. Only use it when
accepted by the compiler.

Signed-off-by: Mark Wielaard <mjw@redhat.com>
---
 config/eu.am | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'config/eu.am')

diff --git a/config/eu.am b/config/eu.am
index e935335a..70d32deb 100644
--- a/config/eu.am
+++ b/config/eu.am
@@ -33,10 +33,15 @@ DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -DLOCALEDIR='"${localedir}"'
 AM_CPPFLAGS = -I. -I$(srcdir) -I$(top_srcdir)/lib -I..
 
 # Warn about stack usage of more than 256K = 262144 bytes.
+if ADD_STACK_USAGE_WARNING
+STACK_USAGE_WARNING=-Wstack-usage=262144
+else
+STACK_USAGE_WARNING=
+endif
 AM_CFLAGS = -std=gnu99 -Wall -Wshadow -Wformat=2 \
 	    $(if $($(*F)_no_Werror),,-Werror) \
 	    $(if $($(*F)_no_Wunused),,-Wunused -Wextra) \
-	    $(if $($(*F)_no_Wstack_usage),,-Wstack-usage=262144) \
+	    $(if $($(*F)_no_Wstack_usage),,$(STACK_USAGE_WARNING)) \
 	    $($(*F)_CFLAGS)
 
 COMPILE.os = $(filter-out -fprofile-arcs -ftest-coverage, $(COMPILE))
-- 
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