aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJohannes Schickel2011-07-24 20:18:21 +0200
committerJohannes Schickel2011-07-24 20:18:21 +0200
commit950faa4143a8473f77ddc78c02fda7d38f1f557d (patch)
tree973ff7592d71f7d61d14903941eb9a57af638d33
parenta1bfbe65ba3f9e3d6cf690c6f48a4719a98ae45c (diff)
downloadscummvm-rg350-950faa4143a8473f77ddc78c02fda7d38f1f557d.tar.gz
scummvm-rg350-950faa4143a8473f77ddc78c02fda7d38f1f557d.tar.bz2
scummvm-rg350-950faa4143a8473f77ddc78c02fda7d38f1f557d.zip
COMMON: Limited gcc specific intLog2 to gcc 3.4 or newer.
Older gcc versions did not include __builtin_clz, which made the PS2 port fail to compile, since it uses 3.2.2.
-rw-r--r--common/math.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/common/math.h b/common/math.h
index 9542cb601a..56ab171bd3 100644
--- a/common/math.h
+++ b/common/math.h
@@ -50,7 +50,7 @@ struct Complex {
float re, im;
};
-#ifdef __GNUC__
+#if defined(__GNUC__) && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
inline int intLog2(uint32 v) {
// This is a slightly optimized implementation of log2 for natural numbers
// targeting gcc. It also saves some binary size over our fallback