fix build error because of glibc updating

fio.spec

@@ -1,6 +1,6 @@
 Name:           fio
 Version:        3.7
-Release:        4  
+Release:        5  
 Summary:        Versatile IO workload generator
 License:        GPLv2
 URL:            http://git.kernel.dk/?p=fio.git;a=summary
@@ -10,7 +10,7 @@ BuildRequires:  libaio-devel zlib-devel librbd1-devel numactl-devel librdmacm-de
 %ifarch x86_64
 BuildRequires:  libpmem-devel libpmemblk-devel
 %endif
-
+Patch0000:      fix-glibc-error.patch
 
 %description
 fio is a tool used to spawn many threads or processes that perform a specific type
@@ -45,6 +45,9 @@ export EXTFLAGS="$RPM_OPT_FLAGS" LDFLAGS="$RPM_LD_FLAGS"
 %{_mandir}/man1/*
 
 %changelog
+* Thu Jul 23 2020 wutao<wutao61@huawei.com> - 3.7-5
+- fix build error because of updating glibc
+
 * Sat Mar 21 2020 huzunhao<huzunhao@huawei.com> - 3.7-4
 - Type: NA
 - ID: NA

fix-glibc-error.patch

@@ -0,0 +1,44 @@
+diff --git a/fio-3.7/configure b/fio-3.7-edit/configure
+index 9bdc7a1..ed345ba 100755
+--- a/configure
++++ b/configure
+@@ -2462,3 +2462,22 @@ SRCDIR:=`dirname $0`
+ include \$(SRCDIR)/Makefile
+ EOF
+ fi
++
++##########################################
++# check for gettid()
++gettid="no"
++cat > $TMPC << EOF
++#include <unistd.h>
++int main(int argc, char **argv)
++{
++  return gettid();
++}
++EOF
++if compile_prog "" "" "gettid"; then
++  gettid="yes"
++fi
++print_config "gettid" "$gettid"
++
++if test "$gettid" = "yes"; then
++  output_sym "CONFIG_HAVE_GETTID"
++fi
+diff --git a/fio-3.7/os/os-linux.h b/fio-3.7-edit/os/os-linux.h
+index a550bba..90d8929 100644
+--- a/os/os-linux.h
++++ b/os/os-linux.h
+@@ -126,10 +126,12 @@ static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
+ 	return syscall(__NR_ioprio_set, which, who, ioprio);
+ }
+ 
++#ifndef CONFIG_HAVE_GETTID
+ static inline int gettid(void)
+ {
+ 	return syscall(__NR_gettid);
+ }
++#endif
+ 
+ #define SPLICE_DEF_SIZE	(64*1024)
+