aboutsummaryrefslogtreecommitdiff
path: root/sysdeps
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/i386/Makefile5
1 files changed, 4 insertions, 1 deletions
diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile
index 3d9f3fc358..661473e226 100644
--- a/sysdeps/i386/Makefile
+++ b/sysdeps/i386/Makefile
@@ -30,13 +30,16 @@ endif
# than 4 bytes.
# Lots of routines in math will use FPU, so make math subdir an exception
# here.
+# In gcc 4.6 (and maybe earlier?) giving -mpreferred-stack-boundary=2 is
+# an error, so don't try to reduce it here like we used to. We still
+# explicit set -mpreferred-stack-boundary=4 the places where it matters,
+# in case an older compiler defaulted to 2.
ifeq ($(subdir),math)
sysdep-CFLAGS += -mpreferred-stack-boundary=4
else
ifeq ($(subdir),csu)
sysdep-CFLAGS += -mpreferred-stack-boundary=4
else
-sysdep-CFLAGS += -mpreferred-stack-boundary=2
# Likewise, any function which calls user callbacks
uses-callbacks += -mpreferred-stack-boundary=4
# Likewise, any stack alignment tests