PAPI: disabble config fail if no -lrt and correct syscall.h location

this is required to build PAPI on OSX where there is no -lrt or
timer_create and syscall.h is only in sy/syscall.h

dist/create_timer.patch

@@ -0,0 +1,13 @@
+diff -ur papi-6.0.0.1.orig/src/configure papi-6.0.0.1/src/configure
+--- papi-6.0.0.1.orig/src/configure	2020-04-03 03:07:00.000000000 -0500
++++ papi-6.0.0.1/src/configure	2020-08-28 08:46:33.000000000 -0500
+@@ -4301,7 +4315,8 @@
+ $as_echo "found" >&6; }
+ 	LRT="-lrt"
+ 	else
+-		as_fn_error $? "cannot find timer_create and timer_*ettime symbols neither in the base system libraries nor in -lrt" "$LINENO" 5
++		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
++$as_echo "not found" >&6; }
+ 	fi
+ fi
+

dist/syscall.patch

@@ -0,0 +1,21 @@
+diff -ur papi-6.0.0.1.orig/src/threads.c papi-6.0.0.1/src/threads.c
+--- papi-6.0.0.1.orig/src/threads.c	2020-04-03 03:07:00.000000000 -0500
++++ papi-6.0.0.1/src/threads.c	2020-08-28 08:51:45.000000000 -0500
+@@ -598,7 +598,7 @@
+ }
+
+ #if defined(__NR_gettid) && !defined(HAVE_GETTID)
+-  #include <syscall.h>
++  #include <sys/syscall.h>
+   #include <unistd.h>
+   unsigned long _papi_gettid(void)
+   {
+@@ -611,7 +611,7 @@
+     return (unsigned long)(gettid());
+   }
+ #elif defined(HAVE_SYSCALL_GETTID)
+-  #include <syscall.h>
++  #include <sys/syscall.h>
+   #include <sys/types.h>
+   unsigned long _papi_gettid(void)
+   {

src/build.sh

@@ -54,6 +54,8 @@ find . -type f -print | xargs perl -pi -e 's/malloc.h/stdlib.h/'
 # disable Werror since new compiler warns about PAPI
 find . -name config.mk -print | xargs perl -pi -e 's/-Werror//g'
 ${PATCH?} -p1 < ${SRCDIR}/../dist/F77_COMMON_NAME.patch
+${PATCH?} -p1 < ${SRCDIR}/../dist/create_timer.patch
+${PATCH?} -p1 < ${SRCDIR}/../dist/syscall.patch
 # Some (ancient but still used) versions of patch don't support the
 # patch format used here but also don't report an error using the exit
 # code. So we use this patch to test for this