From d50c061d38182a5b6477e63655fbe96fcb2c2726 Mon Sep 17 00:00:00 2001
From: Raymond Lu <songyulu@hdfgroup.org>
Date: Tue, 3 Sep 2013 14:39:34 -0500
Subject: [svn-r24095] Issue 8500 - H5detect.c has trouble to find info for
 long double with GCC 4.8.  A user in the forum found the problem in
 H5detect.c (uninitialized buffer) and provided the solution.  Allen and I
 verified it.

Tested with h5committest and CMake on jam, koala, ostrich, playtus, and Allen's virtual machine.
---
 config/gnu-flags | 5 -----
 src/H5detect.c   | 2 ++
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/config/gnu-flags b/config/gnu-flags
index eef38ad..a79cc72 100644
--- a/config/gnu-flags
+++ b/config/gnu-flags
@@ -156,11 +156,6 @@ case "$cc_vendor-$cc_version" in
       gcc-3.*)
         PROD_CFLAGS="-O3"
         ;;
-      gcc-4.8.*)
-	# temp patch: when GCC 4.8.x is used for Linux, dt_arith fails if -O*
-	# is used. Remove any -O* flags. (AKC HDFFV-8500)
-	PROD_CFLAGS="`echo $PROD_CFLAGS | sed -e 's/-O[0-3]*//'`"
-	;;
       gcc-4.*)
         PROD_CFLAGS="-O3"
         ;;
diff --git a/src/H5detect.c b/src/H5detect.c
index 2bf0d2d..25fe778 100644
--- a/src/H5detect.c
+++ b/src/H5detect.c
@@ -238,6 +238,7 @@ precision (detected_t *d)
    unsigned char *_x;							      \
                                                                               \
    HDmemset(&INFO, 0, sizeof(INFO));					      \
+   HDmemset(INFO.perm, 0, sizeof(INFO.perm));                                 \
    INFO.varname = #VAR;							      \
    INFO.size = sizeof(TYPE);						      \
                                                                               \
@@ -297,6 +298,7 @@ precision (detected_t *d)
    char *_mesg;								      \
 									      \
    HDmemset(&INFO, 0, sizeof(INFO));					      \
+   HDmemset(INFO.perm, 0, sizeof(INFO.perm));                                 \
    INFO.varname = #VAR;							      \
    INFO.size = sizeof(TYPE);						      \
 									      \
-- 
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