X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=m4%2Flzo.m4;h=36aa9b7f3d69275243dd068b681489cca52c4338;hp=58011f1a57afac18974a1cccc7962a866b14f3e8;hb=0cae9098754d1414844ba2cdb575d80619516dc0;hpb=4b0e5a03fe89529ebe5d471a82c29c153a12116b

diff --git a/m4/lzo.m4 b/m4/lzo.m4
index 58011f1a..36aa9b7f 100644
--- a/m4/lzo.m4
+++ b/m4/lzo.m4
@@ -1,31 +1,47 @@
 dnl Check to find the lzo headers/libraries
 
-AC_DEFUN(tinc_LZO,
+AC_DEFUN([tinc_LZO],
 [
-  tinc_ac_save_CPPFLAGS="$CPPFLAGS"
+  AC_ARG_ENABLE([lzo],
+    AS_HELP_STRING([--disable-lzo], [disable lzo compression support]))
+  AS_IF([test "x$enable_lzo" != "xno"], [
+    AC_DEFINE(HAVE_LZO, 1, [enable lzo compression support])
+    AC_ARG_WITH(lzo,
+      AS_HELP_STRING([--with-lzo=DIR], [lzo base directory, or:]),
+      [lzo="$withval"
+       CPPFLAGS="$CPPFLAGS -I$withval/include"
+       LDFLAGS="$LDFLAGS -L$withval/lib"]
+    )
 
-  AC_ARG_WITH(lzo-include,
-    [  --with-lzo-include=DIR lzo headers directory],
-    [lzo_include="$withval"
-     CFLAGS="$CFLAGS -I$withval"
-     CPPFLAGS="$CPPFLAGS -I$withval"]
-  )
+    AC_ARG_WITH(lzo-include,
+      AS_HELP_STRING([--with-lzo-include=DIR], [lzo headers directory]),
+      [lzo_include="$withval"
+       CPPFLAGS="$CPPFLAGS -I$withval"]
+    )
 
-  AC_ARG_WITH(lzo-lib,
-    [  --with-lzo-lib=DIR     lzo library directory],
-    [lzo_lib="$withval"
-     LIBS="$LIBS -L$withval"]
-  )
+    AC_ARG_WITH(lzo-lib,
+      AS_HELP_STRING([--with-lzo-lib=DIR], [lzo library directory]),
+      [lzo_lib="$withval"
+       LDFLAGS="$LDFLAGS -L$withval"]
+    )
 
-  AC_CHECK_HEADERS(lzo1x.h,
-    [],
-    [AC_MSG_ERROR("lzo header files not found."); break]
-  )
+    AC_CHECK_LIB(lzo2, lzo1x_1_compress,
+      [LIBS="$LIBS -llzo2"],
+      [AC_CHECK_LIB(lzo, lzo1x_1_compress,
+        [LIBS="$LIBS -llzo"],
+        [AC_MSG_ERROR("lzo libraries not found."); break]
+      )]
+    )
 
-  CPPFLAGS="$tinc_ac_save_CPPFLAGS"
-
-  AC_CHECK_LIB(lzo, lzo1x_1_compress,
-    [LIBS="$LIBS -llzo"],
-    [AC_MSG_ERROR("lzo libraries not found.")]
-  )
+    AC_CHECK_HEADERS(lzo/lzo1x.h,
+      [AC_DEFINE(LZO1X_H, [<lzo/lzo1x.h>], [Location of lzo1x.h])],
+      [AC_CHECK_HEADERS(lzo2/lzo1x.h,
+        [AC_DEFINE(LZO1X_H, [<lzo2/lzo1x.h>], [Location of lzo1x.h])],
+        [AC_CHECK_HEADERS(lzo1x.h,
+          [AC_DEFINE(LZO1X_H, [<lzo1x.h>], [Location of lzo1x.h])],
+          [AC_MSG_ERROR("lzo header files not found."); break]
+        )]
+      )]
+    )
+  ])
 ])