Always use our own MAX/MIN definitions

code in src/shared/macro.h only defined MAX/MIN in case
they were not defined previously. however the MAX/MIN
macros implemented in glibc are not of the "safe" kind but defined
as:

define MIN(a,b) (((a)<(b))?(a):(b))
define MAX(a,b) (((a)>(b))?(a):(b))

Avoid nasty side effects by using our own versions instead.

Also fix the warnings derived from this change.

[zj: - modify MAX3 macro to fix warning about _a shadowing _a,
     - do bootchart/svg.c too,
     - remove unused MIN3.]

1 files changed, 1 insertions, 1 deletions

diff --git a/src/shared/util.c b/src/shared/util.c
index b516b9b053..46c20bec9c 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -5862,7 +5862,7 @@ void* greedy_realloc(void **p, size_t *allocated, size_t need) {
         if (*allocated >= need)
                 return *p;
 
-        a = MAX(64, need * 2);
+        a = MAX(64u, need * 2);
         q = realloc(*p, a);
         if (!q)
                 return NULL;