From 43ba3897c2832fe3be840505dca2945bec2b3f63 Mon Sep 17 00:00:00 2001
From: Hartmut Holzgraefe <hholzgra@php.net>
Date: Mon, 30 May 2005 14:15:40 +0000
Subject: [PATCH] gracefully handle changes of the parse.y lemon file, process
 it with lemon if available, else just keep the .c file from CVS not doing so
 leads to make using its implicit .y->.c rule here and bison doesn't really
 understand lemon syntax

---
 ext/sqlite/Makefile.frag |  2 ++
 ext/sqlite/config.m4     | 38 +++++++++++++++++++++++++++++++++++++-
 2 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 ext/sqlite/Makefile.frag

diff --git a/ext/sqlite/Makefile.frag b/ext/sqlite/Makefile.frag
new file mode 100644
index 0000000000..3bf19e0578
--- /dev/null
+++ b/ext/sqlite/Makefile.frag
@@ -0,0 +1,2 @@
+$(srcdir)/libsqlite/src/parse.c: $(srcdir)/libsqlite/src/parse.y
+	$(LEMON) $(srcdir)/libsqlite/src/parse.y 
diff --git a/ext/sqlite/config.m4 b/ext/sqlite/config.m4
index 495512257e..7247f5611e 100644
--- a/ext/sqlite/config.m4
+++ b/ext/sqlite/config.m4
@@ -11,7 +11,42 @@ PHP_ARG_WITH(sqlite, for sqlite support,
 PHP_ARG_ENABLE(sqlite-utf8, whether to enable UTF-8 support in sqlite (default: ISO-8859-1),
 [  --enable-sqlite-utf8      SQLite: Enable UTF-8 support for SQLite], no, no)
 
+
+
+dnl
+dnl PHP_PROG_LEMON
+dnl
+dnl Search for lemon binary and check it's version
+dnl
+AC_DEFUN([PHP_PROG_LEMON],[
+  # we only support certain lemon versions
+  lemon_version_list="1.0"
+
+  AC_CHECK_PROG(LEMON, lemon, lemon)
+  if test "$LEMON"; then
+    AC_CACHE_CHECK([for lemon version], php_cv_lemon_version, [
+      lemon_version=`$LEMON -x 2>/dev/null | $SED -e 's/^.* //'`
+      php_cv_lemon_version=invalid
+      for lemon_check_version in $lemon_version_list; do
+        if test "$lemon_version" = "$lemon_check_version"; then
+          php_cv_lemon_version="$lemon_check_version (ok)"
+        fi
+      done
+    ])
+  fi
+  case $php_cv_lemon_version in
+    ""|invalid[)]
+      lemon_msg="lemon versions supported for regeneration of the Zend/PHP parsers: $lemon_version_list  (found $lemon_version)."
+      AC_MSG_WARN([$lemon_msg])
+      LEMON="exit 0;"
+      ;;
+  esac
+  PHP_SUBST(LEMON)
+])
+
+
 if test "$PHP_SQLITE" != "no"; then
+  PHP_PROG_LEMON
   if test "$PHP_PDO" != "no"; then
     AC_MSG_CHECKING([for PDO includes])
     if test -f $abs_srcdir/include/php/ext/pdo/php_pdo_driver.h; then
@@ -78,7 +113,7 @@ if test "$PHP_SQLITE" != "no"; then
         libsqlite/src/vacuum.c libsqlite/src/copy.c \
         libsqlite/src/vdbeaux.c libsqlite/src/date.c \
         libsqlite/src/where.c libsqlite/src/trigger.c"
-    
+ 
     PHP_ADD_EXTENSION_DEP(sqlite, spl)
     PHP_ADD_EXTENSION_DEP(sqlite, pdo)
   fi
@@ -88,6 +123,7 @@ if test "$PHP_SQLITE" != "no"; then
   dnl
   sqlite_sources="sqlite.c sess_sqlite.c pdo_sqlite2.c $sqlite_extra_sources" 
   PHP_NEW_EXTENSION(sqlite, $sqlite_sources, $ext_shared,,$PHP_SQLITE_CFLAGS)
+  PHP_ADD_MAKEFILE_FRAGMENT
   PHP_SUBST(SQLITE_SHARED_LIBADD)
   PHP_INSTALL_HEADERS([$ext_builddir/libsqlite/src/sqlite.h])
   
-- 
2.40.0