master dcccb925626 2/2: Port better to AIX 7.3 with -lsqlite3 but not sqlite3.h

[Paul Eggert]

branch: master
commit dcccb9256262f8e992b75602dd4e861371b97361
Author: Paul Eggert <eggert@cs.ucla.edu>
Commit: Paul Eggert <eggert@cs.ucla.edu>

    Port better to AIX 7.3 with -lsqlite3 but not sqlite3.h
    
    * configure.ac (HAVE_SQLITE): Yes only if sqlite3.h can be
    included (Bug#75667).
---
 configure.ac | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 1d8c281ee21..ba39074c83a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3716,9 +3716,18 @@ if test "${with_sqlite3}" != "no"; then
        CFLAGS="$SAVE_CFLAGS"
      fi
    else
-     AC_CHECK_LIB([sqlite3], [sqlite3_open_v2],
-       [HAVE_SQLITE3=yes],
-       [HAVE_SQLITE3=no])
+     AC_CACHE_CHECK([for sqlite3],
+       [emacs_cv_have_sqlite3],
+       [OLIBS=$LIBS
+       LIBS="-lsqlite3 $LIBS"
+       AC_LINK_IFELSE(
+         [AC_LANG_PROGRAM([[#include <sqlite3.h>
+                            sqlite3 *handle;]],
+                          [[return sqlite3_open_v2 ("", &handle, 0, "");]])],
+         [emacs_cv_have_sqlite3=yes],
+         [emacs_cv_have_sqlite3=no])
+       LIBS=$OLIBS])
+     HAVE_SQLITE3=$emacs_cv_have_sqlite3
      if test "$HAVE_SQLITE3" = "yes"; then
        SQLITE3_LIBS=-lsqlite3
        LIBS="$SQLITE3_LIBS $LIBS"