build/pkgs/coxeter3/spkg-configure.m4: New

Author: Matthias Koeppe

build/pkgs/coxeter3/spkg-configure.m4

@@ -0,0 +1,21 @@
+SAGE_SPKG_CONFIGURE([coxeter3], [
+    AC_LANG_PUSH(C++)
+    AC_MSG_CHECKING([for library coxeter3])
+    SAVE_LIBS="$LIBS"
+    LIBS="$LIBS -lcoxeter3"
+    AC_LINK_IFELSE([
+        AC_LANG_PROGRAM([[
+            #include <coxeter/sage.h>
+            #include <coxeter/interactive.h>
+          ]], [[
+           coxeter::CoxGroup *g = interactive::coxeterGroup("B", 2);
+          ]])
+      ], [
+        AC_MSG_RESULT([yes])
+      ], [
+        AC_MSG_RESULT([no])
+        sage_spkg_install_coxeter3=yes
+      ])
+    LIBS="$SAVE_LIBS"
+    AC_LANG_POP(C++)
+])