[patch] 0001-iozone-fix-build-failure-against-gcc-10.patch

0001-iozone-fix-build-failure-against-gcc-10.patch (text/plain), 1.76 KB, created by Sergei Trofimovich (RETIRED) on 2020-01-24 11:40:46 UTC

From f2ef3291448403da85fbb0571da97acf5753c7aa Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <[e-mail]>
Date: Fri, 24 Jan 2020 11:37:09 +0000
Subject: [PATCH] iozone: fix build failure against gcc-10

On gcc-10 (and gcc-9 -fno-common) build fails as:

```
x86_64-pc-linux-gnu-gcc iozone_linux-AMD64.o libbif.o libasync.o \
  -lrt -lpthread -o iozone
ld: libbif.o:(.bss+0x8):
  multiple definition of `junk'; iozone_linux-AMD64.o:(.bss+0xbd4e0): first defined here
```

gcc-10 will change the default from -fcommon to fno-common:
https://gcc.gnu.org/PR85678.

The error also happens if CFLAGS=-fno-common passed explicitly.

Reported-by: David Seifert
Bug: https://bugs.gentoo.org/706232
Signed-off-by: Sergei Trofimovich <[e-mail]>
---
 src/current/fileop.c | 2 +-
 src/current/iozone.c | 2 +-
 src/current/libbif.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/current/fileop.c b/src/current/fileop.c
index 70010f4..a2650e1 100644
--- a/src/current/fileop.c
+++ b/src/current/fileop.c
@@ -74,7 +74,7 @@ extern char *opterr;
 int fsync();
 int getopt();
 #endif
-int junk, *junkp;
+static int junk, *junkp;
 int x,excel;
 int verbose = 0;
 int sz = 1;
diff --git a/src/current/iozone.c b/src/current/iozone.c
index 34ce32a..9afc4f4 100644
--- a/src/current/iozone.c
+++ b/src/current/iozone.c
@@ -1676,7 +1676,7 @@ int client_error;
 
 char pit_hostname[40];
 char pit_service[8];
-int junk;
+static int junk;
 
 /* 
  * Host ports used to listen, and handle errors.
diff --git a/src/current/libbif.c b/src/current/libbif.c
index b2b9668..8e72e63 100644
--- a/src/current/libbif.c
+++ b/src/current/libbif.c
@@ -55,7 +55,7 @@
 /* Middle Endian */
 #define ENDIAN_4  4
 
-int junk, *junkp;
+static int junk, *junkp;
 
 
 #ifdef HAVE_ANSIC_C
-- 
2.25.0