python: Explicitly add sqlite to cflags/ldflags

Fixes Homebrew/homebrew#15300 because sqlite is keg_only since a few days.

Closes Homebrew/homebrew#17120.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/python.rb

@@ -74,8 +74,11 @@ class Python < Formula
     args << '--without-gcc' if ENV.compiler == :clang
     args << '--with-dtrace' if build.include? 'with-dtrace'
 
+    if superenv?
       distutils_fix_superenv(args)
+    else
       distutils_fix_stdenv
+    end
 
     if build.universal?
       ENV.universal_binary
@@ -175,10 +178,9 @@ class Python < Formula
   end
 
   def distutils_fix_superenv(args)
-    if superenv?
     # To allow certain Python bindings to find brewed software:
-      cflags = "CFLAGS=-I#{HOMEBREW_PREFIX}/include"
-      ldflags = "LDFLAGS=-L#{HOMEBREW_PREFIX}/lib"
+    cflags = "CFLAGS=-I#{HOMEBREW_PREFIX}/include -I#{Formula.factory('sqlite').opt_prefix}/include"
+    ldflags = "LDFLAGS=-L#{HOMEBREW_PREFIX}/lib -L#{Formula.factory('sqlite').opt_prefix}/lib"
     unless MacOS::CLT.installed?
       # Help Python's build system (distribute/pip) to build things on Xcode-only systems
       # The setup.py looks at "-isysroot" to get the sysroot (and not at --sysroot)
@@ -201,10 +203,8 @@ class Python < Formula
               "do_readline = self.compiler.find_library_file(lib_dirs, 'readline')",
               "do_readline = '#{HOMEBREW_PREFIX}/opt/readline/lib/libhistory.dylib'"
   end
-  end
 
   def distutils_fix_stdenv()
-    if not superenv?
     # Python scans all "-I" dirs but not "-isysroot", so we add
     # the needed includes with "-I" here to avoid this err:
     #     building dbm using ndbm
@@ -227,7 +227,6 @@ class Python < Formula
       ENV.append_to_cflags '-Qunused-arguments'
     end
   end
-  end
 
   def caveats
     <<-EOS.undent