libdbi 0.9.0 (new formula)

This is a new formula for libdbi, which is a database independent
abstraction layer for C.

Closes Homebrew/homebrew#39737.

Signed-off-by: Xu Cheng <xucheng@me.com>

Formula/libdbi.rb

@@ -0,0 +1,26 @@
+class Libdbi < Formula
+  homepage "http://libdbi.sourceforge.net"
+  url "https://downloads.sourceforge.net/project/libdbi/libdbi/libdbi-0.9.0/libdbi-0.9.0.tar.gz"
+  sha256 "dafb6cdca524c628df832b6dd0bf8fabceb103248edb21762c02d3068fca4503"
+
+  def install
+    system "./configure", "--disable-debug", "--prefix=#{prefix}"
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"test.c").write <<-EOS.undent
+      #include <stdio.h>
+      #include <dbi/dbi.h>
+      int main(void) {
+        dbi_inst instance;
+        dbi_initialize_r(NULL, &instance);
+        printf("dbi version = %s\\n", dbi_version());
+        dbi_shutdown_r(instance);
+        return 0;
+      }
+    EOS
+    system ENV.cc, "test.c", "-L#{lib}", "-ldbi", "-o", "test"
+    system "./test"
+  end
+end