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-rw-r--r--pixman/pixman/pixman-matrix.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/pixman/pixman/pixman-matrix.c b/pixman/pixman/pixman-matrix.c
index 89b96826b..4032c137a 100644
--- a/pixman/pixman/pixman-matrix.c
+++ b/pixman/pixman/pixman-matrix.c
@@ -37,7 +37,7 @@
static force_inline int
count_leading_zeros (uint32_t x)
{
-#ifdef __GNUC__
+#ifdef HAVE_BUILTIN_CLZ
return __builtin_clz (x);
#else
int n = 0;