From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Wed, 21 Jun 2017 13:14:14 +0000 (+0300)
Subject: lib/bits.h: Fix compiling with gcc 3.0 .. 3.3
X-Git-Tag: 2.2.32.rc1~40
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=62cbd72856a49c38be1456628f7b37858d05386a;p=thirdparty%2Fdovecot%2Fcore.git

lib/bits.h: Fix compiling with gcc 3.0 .. 3.3

According to gcc's online manuals, 3.4 is the first version with
__builtin_clzll
---

diff --git a/src/lib/bits.h b/src/lib/bits.h
index d030382267..5ad6d8cfd7 100644
--- a/src/lib/bits.h
+++ b/src/lib/bits.h
@@ -15,7 +15,7 @@ bits_is_power_of_two(uint64_t num)
 	return num > 0 && (num & (num - 1)) == 0;
 }
 
-#if __GNUC__ > 2
+#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
 static inline unsigned int ATTR_CONST
 bits_required32(uint32_t num)
 {