X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/178c254085727e7ee6e026e69a1f18cd0ab674e0..8ae2bc5cdb500e8b6a0f4d9a7d4aea73d00d3dd6:/configure.ac

diff --git a/configure.ac b/configure.ac
index f8ad8b77..a2af5bf2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -278,6 +278,9 @@ AC_CHECK_HEADERS([sys/auxv.h])
 AC_CHECK_HEADERS([linux/auxvec.h])
 AC_CHECK_FUNCS([getauxval])
 
+dnl Some equipment for measuring CPU performance.
+AC_CHECK_HEADERS([linux/perf_event.h])
+
 dnl Find the bit lengths of the obvious integer types.  This will be useful
 dnl when deciding on a representation for multiprecision integers.
 type_bits="" type_bits_sep=""