diff --git a/argyllcms.changes b/argyllcms.changes
index 2967c9d..9cdc062 100644
--- a/argyllcms.changes
+++ b/argyllcms.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Feb 24 15:00:24 UTC 2015 - rguenther@suse.com
+
+- Use -std=gnu89 for building to not run into broken __declspec
+  uses with the GCC 5 default of -std=gnu99.
+
 -------------------------------------------------------------------
 Mon Feb 23 13:55:20 UTC 2015 - meissner@suse.com
 
diff --git a/argyllcms.spec b/argyllcms.spec
index 75f445e..ca0e42a 100644
--- a/argyllcms.spec
+++ b/argyllcms.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package argyllcms
 #
-# Copyright (c) 2015 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2015 SUSE LINUX Products GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -118,11 +118,11 @@ rm -fr usb/{*.inf,*.rtf,*.inf,*.cat,*.vcproj,*.sys,*.dsw,*.sln,*.dsp,*template*,
 
 %build
 cd ajam-2.5.2-1.3.3
-make CFLAGS="${RPM_OPT_FLAGS}"
+make CFLAGS="-std=gnu89 ${RPM_OPT_FLAGS}"
 ln -s $PWD/bin.unix/jam ../jam
 cd ..
 
-echo "CCFLAGS += ${RPM_OPT_FLAGS} -fno-strict-aliasing ;" >> Jamtop
+echo "CCFLAGS += -std=gnu89 ${RPM_OPT_FLAGS} -fno-strict-aliasing ;" >> Jamtop
 # Evil hack to get --as-needed working. The build system unfortunately lists all
 # the shared libraries by default on the command line _before_ the object to be built...
 echo "STDLIBS += -ldl -lrt -lX11 -lXext -lXxf86vm -lXinerama -lXrandr -lXau -lXdmcp -lXss -ltiff -ljpeg ;" >> Jamtop