commit 11de11a1cfa840545dd8fd9b41937445c6107f86
Author: orbea <orbea@riseup.net>
Date:   Wed Mar 31 05:11:07 2021 -0700

    build: Fix undefined reference for libm.

diff --git a/Makefile.am b/Makefile.am
index 62fd2e3..78ccc65 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -22,5 +22,4 @@ libcandido_la_SOURCES =		\
 	./src/config.h
 
 libcandido_la_LDFLAGS = -module -avoid-version -no-undefined
-libcandido_la_LIBADD =  $(GTK_LIBS)
-
+libcandido_la_LIBADD =  $(GTK_LIBS) $(LIBM)
diff --git a/configure.ac b/configure.ac
index 8e261af..8570101 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,6 +27,9 @@ PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.8.0,,
 AC_SUBST(GTK_CFLAGS)
 AC_SUBST(GTK_LIBS)
 
+AC_CHECK_LIBM
+AC_SUBST([LIBM])
+
 GTK_VERSION=`$PKG_CONFIG --variable=gtk_binary_version gtk+-2.0`
 AC_SUBST(GTK_VERSION)