From d68fc6394fd76b19177534fac293d4ce21ea89cf Mon Sep 17 00:00:00 2001
From: Glenn Strauss <gstrauss@gluelogic.com>
Date: Tue, 1 Feb 2022 17:27:37 -0500
Subject: [mod_deflate] --with-libdeflate to use libdeflate

configure --with-libdeflate option to use libdeflate
(must also configure --enable-mmap for mod_deflate to use libdeflate
 on input files larger than 64kB; libdeflate not used on files <= 64kB)
---
 configure.ac | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 414227d5..dfa924a8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1085,6 +1085,36 @@ if test "$WITH_BROTLI" != no; then
   AC_SUBST([BROTLI_LIBS])
 fi
 
+dnl libdeflate
+AC_MSG_NOTICE([----------------------------------------])
+AC_MSG_CHECKING([for libdeflate support])
+AC_ARG_WITH([libdeflate],
+  [AS_HELP_STRING([--with-libdeflate],
+    [Enable libdeflate support for mod_deflate]
+  )],
+  [WITH_LIBDEFLATE=$withval],
+  [WITH_LIBDEFLATE=no]
+)
+AC_MSG_RESULT([$WITH_LIBDEFLATE])
+
+if test "$WITH_LIBDEFLATE" != no; then
+  if test "$WITH_LIBDEFLATE" != yes; then
+    DEFLATE_LIBS="-L$WITH_LIBDEFLATE -ldeflate"
+    CPPFLAGS="$CPPFLAGS -I$WITH_LIBDEFLATE"
+  else
+    AC_CHECK_HEADERS([libdeflate.h], [],
+      [AC_MSG_ERROR([libdeflate header not found, install them or build without --with-libdeflate])]
+    )
+    AC_CHECK_LIB([deflate], [libdeflate_alloc_compressor],
+      [DEFLATE_LIBS=-ldeflate],
+      [AC_MSG_ERROR([libdeflate library not found, install it or build without --with-libdeflate])]
+    )
+  fi
+
+  AC_DEFINE([HAVE_LIBDEFLATE], [1], [libdeflate])
+  AC_SUBST([DEFLATE_LIBS])
+fi
+
 dnl Check for fam/gamin
 AC_MSG_NOTICE([----------------------------------------])
 AC_MSG_CHECKING([for FAM])
-- 
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