Add missing checks in m4/ and update configure.ac.

[tinc] / m4 / lzo.m4

diff --git a/m4/lzo.m4 b/m4/lzo.m4
new file mode 100644 (file)
index 0000000..41c8097
--- /dev/null
+++ b/m4/lzo.m4
@@ -0,0 +1,37 @@
+dnl Check to find the lzo headers/libraries
+
+AC_DEFUN([tinc_LZO],
+[
+  AC_ARG_WITH(lzo,
+    AS_HELP_STRING([--with-lzo=DIR], [lzo base directory, or:]),
+    [lzo="$withval"
+     CPPFLAGS="$CPPFLAGS -I$withval/include"
+     LDFLAGS="$LDFLAGS -L$withval/lib"]
+  )
+
+  AC_ARG_WITH(lzo-include,
+    AS_HELP_STRING([--with-lzo-include=DIR], [lzo headers directory]),
+    [lzo_include="$withval"
+     CPPFLAGS="$CPPFLAGS -I$withval"]
+  )
+
+  AC_ARG_WITH(lzo-lib,
+    AS_HELP_STRING([--with-lzo-lib=DIR], [lzo library directory]),
+    [lzo_lib="$withval"
+     LDFLAGS="$LDFLAGS -L$withval"]
+  )
+
+  AC_CHECK_LIB(lzo2, lzo1x_1_compress,
+    [AC_CHECK_HEADERS(lzo/lzo1x.h,
+      [LIBS="$LIBS -llzo2"],
+      [AC_MSG_ERROR("lzo2 header files not found."); break]
+    )],
+    [AC_CHECK_LIB(lzo, lzo1x_1_compress,
+      [AC_CHECK_HEADERS(lzo1x.h,
+        [LIBS="$LIBS -llzo"],
+       [AC_MSG_ERROR("lzo1 header files not found."); break]
+      )],
+      [AC_MSG_ERROR("lzo library not found."); break]
+    )]
+  )
+])