--- /usr/portage/sys-process/acct/acct-6.5.5-r3.ebuild	2013-12-21 12:31:35.000000000 -0500
+++ /usr/local/portage/sys-process/acct/acct-6.5.5-r3.ebuild	2014-08-09 12:44:28.000000000 -0400
@@ -25,6 +25,10 @@
 	econf --enable-linux-multiformat
 }
 
+src_compile() {
+	 emake LIBS="-lm" || die "emake failed"
+}
+
 src_install() {
 	emake install DESTDIR="${D}" || die
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