spkg-configure for symengine

Author: dimpase

build/pkgs/symengine/spkg-configure.m4

@@ -0,0 +1,45 @@
+SAGE_SPKG_CONFIGURE([symengine], [
+    m4_pushdef(SAGE_SYMENGINE_VERSION_MAJOR, [0])
+    m4_pushdef(SAGE_SYMENGINE_VERSION_MINOR, [11])
+    SAGE_SPKG_DEPCHECK([gmp arb ecm flint mpc mpfr], [
+        AC_CHECK_HEADER([symengine/symengine_config.h], [], [sage_spkg_install_symengine=yes])
+        AC_MSG_CHECKING([whether we can link a program using symengine])
+        SYMENGINE_SAVED_LIBS=$LIBS
+        LIBS="$LIBS -lsymengine"
+        AC_LINK_IFELSE([
+            AC_LANG_PROGRAM([[#include <symengine/expression.h>]],
+            [[using SymEngine::Expression;
+              Expression x("x");
+              auto ex = pow(x+sqrt(Expression(2)), 6);]]
+            )], [AC_MSG_RESULT([yes])], [
+            AC_MSG_RESULT([no]); sage_spkg_install_symengine=yes
+            LIBS=$SYMENGINE_SAVED_LIBS
+        ])
+        AC_MSG_CHECKING([symengine version >= ]SAGE_SYMENGINE_VERSION_MAJOR[.]SAGE_SYMENGINE_VERSION_MINOR)
+        AC_RUN_IFELSE([
+            AC_LANG_PROGRAM(
+            [[#include <symengine/symengine_config.h>
+              #include <stdio.h>
+            ]], [[
+              fprintf(stderr, "%s\n", SYMENGINE_VERSION);
+              if (SYMENGINE_MAJOR_VERSION >]] SAGE_SYMENGINE_VERSION_MAJOR[[) return 0;
+              else if (SYMENGINE_MAJOR_VERSION ==]] SAGE_SYMENGINE_VERSION_MAJOR[[ &&
+                       SYMENGINE_MINOR_VERSION >=]] SAGE_SYMENGINE_VERSION_MINOR[[) return 0;
+              else return 1;
+            ]])], [
+                AC_MSG_RESULT([yes])
+            ], [
+                AC_MSG_RESULT([no])
+                sage_spkg_install_symengine=yes
+            ], [
+                dnl assume that the person running cross-compiling
+                dnl knows what they are doing
+                AC_MSG_RESULT([yes])
+            ])
+    ])
+
+    m4_popdef([SAGE_SYMENGINE_VERSION_MAJOR])
+    m4_popdef([SAGE_SYMENGINE_VERSION_MINOR])
+], [], [], []
+)
+