Do not build with -ldl.
Fix path to freetype2.


--- configure.ac.orig	2021-08-16 08:58:14 UTC
+++ configure.ac
@@ -36,7 +36,7 @@ if test x"$have_x11" = xyes; then
 dnl check X11
 AC_CHECK_LIB([X11], [XOpenDisplay], have_x11="yes")
 if test x"$have_x11" = xyes; then
-  AC_SUBST([X_LIBS], ["-lXmu -lXt -lSM -lICE -lXext -lX11 -lXpm -ldl -rdynamic"])
+  AC_SUBST([X_LIBS], ["-lXmu -lXt -lSM -lICE -lXext -lX11 -lXpm -rdynamic"])
   AC_SUBST([X_CFLAGS], ["-I/usr/include/X11"])
 else
   echo "X11 libraries not installed !"
@@ -317,7 +317,7 @@ AC_PREPROC_IFELSE(
 
 AC_MSG_CHECKING([location of freetype2 headers])
 AC_PREPROC_IFELSE(
-  [AC_LANG_PROGRAM([[#include <freetype2/config/ftheader.h>]])],
+  [AC_LANG_PROGRAM([[#include <freetype2/freetype/config/ftheader.h>]])],
   [AC_MSG_RESULT([already in path])],
   [AC_PREPROC_IFELSE(
     [AC_LANG_PROGRAM([[#include </usr/include/freetype2/freetype/config/ftheader.h>]])],